The following is a list of startup or private companies working on Quantum Computing and Quantum Communications. It does not include quantum sensing companies, component companies that sell to multiple markets besides quantum computing companies, and companies that simulate chemical reactions on classical computers (sometimes these companies will call themselves quantum-inspired.) This table can be sorted by Company Name, Country, or Segment. The definition for each of the segments is shown after the end of the table. You can also includes a Search function that allows you to find all entries that contain the keyword entered into the search box. Any additions or corrections to this list can be sent to info@quantumcomputingreport.com.
| Company Name | Description | Country | Segment |
|---|---|---|---|
| 1QBit | 1QBit is a software and consulting company that solutions to large and difficult problems, using complex algorithms and software development tools utilizing both classical methods and quantum computers. Much of their work involves utilization of quantum annealing hardware. 1QBit has offices in Vancouver and Waterloo, Canada. | Canada | Software |
| A*Quantum | Founded in 2018 and based in Tokyo, Japan, A*Quantum is a company specializing in quantum computer software. They will develop software for both annealing and gate-level machines and collaborate with universities to nurture developers and provide coordination between companies. | Japan | Software |
| AbaQus | AbaQus provides a single platform that harnesses the computation power of Quantum computing along with the pattern recognition capabilities of classical ML. This is used for classification and categorization of complex datasets allowing trend prediction beyond conventional machine learning techniques. The company was formed in 2021. | Canada | Software |
| Adaptive Finance Technologies | Adaptive Finance specializes in quantum-enabled, AI-driven investment management solutions. They develop hybrid models and investment strategies for global markets in equities, derivatives, as well as other traditional and emerging asset classes. The company is headquartered in Toronto, Canada and was formed in October 2017. | Canada | Software |
| AegiQ | AegiQ is a spin-off from The University of Sheffield founded in 2019. AegiQ's focus on high-performance quantum photonic applications with its core technology being in semiconductor-based deterministic and indistinguishable single-photon sources. | UK | Hardware |
| Agnostiq | Agnostiq provides a suite of software solutions aimed at making the world's most advanced computing resources more accessible to enterprise customers. Agnostiq has an interdisciplinary team of physicists, computer scientists, and mathematicians backed by leading investors in New York and Silicon Valley. The company is based in Toronto, Canada, was founded in August 2018 and is a graduate of the Creative Destruction Lab’s 2018/19 cohort. | Canada | Software |
| Alea Quantum Technologies | Alea Quantum Technologies provides secure, simple, and high speed Quantum Random Number Generators (QRNG). It is based upon research from the Technical University of Denmark and utilizes fluctuations in the vacuum field |0> of light to generate a truly random seed. The vaccum state can be considered as the absense of a photon. The company was founded in March 2022 and is located in Lyngby, Denmark. | Denmark | Communications |
| Algorithmiq | Algorithmiq is on a mission to revolutionize life sciences by exploiting the potential of quantum computing to solve currently inaccessible problems. Researchers at Algorithmiq envision a world where new drugs can be discovered and invented quickly, efficiently, and cost-effectively, leading to affordable and precise medical treatments. The company is based in Helsinki, Finland and was formed in May 2020. | Finland | Software |
| Alice&Bob | Alice&Bob is developing a universal fault tolerant quantum computer based upon research developed at French universities and research institutes. The technology uses superconducting detection of microwave photons and what are known as "cat" qubits to exponentially reduce bit-flip errors rates. The company was founded in February 2020 and is located in Paris, France. | France | Hardware |
| Aliro Security | Aliro Security is a quantum networking platform company that spun out of NarangLab at Harvard University. Aliro is leading the charge on quantum network market creation by offering the foundational technologies needed for organizations around the world to build powerful quantum systems. An Air Force Research grant recipient, Aliro is designing quantum network simulation and emulation tools while partnering with national labs and hardware vendors including Air Force Research Labs, IBM Q Network, Rigetti, Honeywell Quantum Solutions, and Hyperion Research to make scalable quantum computing accessible. The company is located in Boston, Massachusetts and was founded in 2019. | US | Software |
| Alternatio | Alternatio provides an agile cryptography accelerator so that any electronic device can be protected against quantum computer attacks. They use post-quantum standards recommended by National Institute of Standards and Technology (NIST) for secure end-to-end encryption. They were founded in 2016 and are located in Warsaw, Poland. | Poland | Communications |
| Alpine Quantum Technologies, GmbH | Located in Innsbruck, Austria, Alpine Quantum Technologies (AQT) is a recent spin-off formed by three physicists from the University of Innsbruck and the Institute of Quantum Optics and Quantum Information of the Austrian Academy of Sciences. The company’s goal is to construct a commercial quantum computer using ion trap technology. | Austria | Hardware |
| American Binary | American Binary is a cybersecurity company made up of multi-disciplinary technologists, engineers, and security professionals who share a passion for solving the industry's hardest and most impactful challenges. Their mission is to protect critical verticals by delivering uniquely secure, efficient, and scalable quantum resistant cloud infrastructure solutions. American Binary follows the NIST standardization path for post-quantum encryption, ensuring resistance to quantum computing attacks, and expected to remain secure for decades. The company is based in Kirkland, Washington and was formed in March 2019. | US | Communications |
| Analog Quantum Circuits | Analog Quantum Circuits (AQC) designs and fabricates advanced superconducting devices for quantum computing. Solid-state quantum computers depend on high performance electronics such as amplifiers, attenuators, circulators, and other components to send and receive signals to the quantum bits. Analog Quantum Circuits is developing fabrication processes to integrate these devices "on-chip", so that the future generations of quantum technologies can scale. AQC is located in Brisbane, Australia and was founded in October 2022. | Australia | Hardware |
| Anametric | Formed in June 2017 and based in Austin, Texas, Anametric (formerly known as Bra-Ket Science) is developing a new approach to practical room temperature qubit storage. Their first publications and patent filings are currently in process and more information on them will be published when it is available. | US | Communications |
| Anaqor | Anaqor provides services for customers to access PlanQK, a quantum computing platform funded by the German Federal Ministry for Economic Affairs and Energy (BMWi) for integrating, delivering, advancing and monetizing quantum code and related services. They were formed in October 2021 and are based in Berlin, Germany. | Germany | Services |
| Anyon Systems Inc. | Anyon Systems Inc. is a Canadian technology startup initially had the mission of developing Quantum Electronic Design Automation toolkits for design and optimization of nano/quantum electronics. Once they were satisfied with the maturity of their simulation tools, they moved on to designing and building their own hardware, including proprietary cryogenics system and control electronics designed for superconducting quantum computing. With this completed, they are now in the early stages of commercializing integrated superconducting quantum computers. The company was founded in 2014 and is located in Dorval, Quebec and Waterloo, Ontario. | Canada | Software |
| Anyon Technologies | Anyone Technologies (also known as Anyon Computing) was founded by members from the world-leading quantum device research groups of Caltech and UC Berkeley with a background in Singapore’s A*STAR. They started with a decade-long world-leading original research experience and expertise. Therefore, Anyon is uniquely driven by combining the US's excellence in quantum hardware research with Asian industries' engineering and manufacturing efficiency. The company was founded in April 2019 and has headquarters in Emeryville, California with an additional office in Singapore. | US and Singapore | Hardware |
| Anzaetek | Anzaetek is a software company that provides advanced quantum & quantum-inspired computing solutions that leverage the full force of machine learning and advanced quantum algorithms to enable businesses to optimize operations for businesses in real-time and maximize profits. The company is located in Seoul, South Korea and was founded in July 2023. | South Korea | Software |
| ApexQubit | ApexQubit is a biotechnology company that is harnessing quantum computing for discovery of new medicines to treat undruggable diseases. The company was founded in November, 2018 and is located in Berkeley, CA, United States. They received angel investments from Overkill Ventures and HealthInc, and also have support from Nvidia, Amazon Healthcare and LifeSciences, Creative Destruction Lab, D-Wave, and Xanadu. | US | Software |
| Applied Quantum Computing | Applied Quantum Computing assists organizations to take advantage of the potential offered by quantum computing. They offer consulting and technical advisory services to organizations looking to learn about and apply quantum computing approaches to business problems. They concentrate on the use of quantum optimization techniques to help provide better solutions, with a particular focus on the finance and healthcare sectors. The company is located in London, England and was formed in October 2019. | UK | Consulting |
| Applied Quantum Software | Applied Quantum Software creates software infrastructure for quantum computing. The company is headquartered in San Mateo, California and was founded in April 2024. | US | Software |
| Apply Science Quantum Division | Apply Science is dedicated to applied mathematics serving clients who are medium, big and enterprise sized companies that have decided to invest on data. They have joined the IBM Q Network to learn how to develop code for a quantum computer. They are working to provide products and services in quantum artificial intelligence focusing on quantum neural networks and also on virtual drug development. The company was founded in 2019 and is located in Bresso (near Milan), Italy. | Italy | Software |
| aQuantum | Formed in February 2018 and based in Madrid, Spain, aQuantum is a a research, development, consulting and services group in the fields of quantum software engineering and programming. Specializing in Quantum Software Engineering and Programming, aQuantum works in the fields of Hybrid Classical-Quantum Computing, Software Quantum Quality, Governance and Management, Quantum Software Workforce, Development Tools and Machine Learning. | Spain | Software |
| Aqacia | Aqacia prepares custom-made Machine Learning solutions for businesses solving complex automation problems. They create robust solutions using a quantum physics informed approach. They operate in the real world where noise and drift cannot be ignored. The company is located in Canberra, Australia and was founded in 2021. | Australia | Software |
| Aqarios | Aqarios GmbH is a spin-off of LMU Munich and is a unique company with well-known customers. Their goal is to produce methodological knowledge, software algorithms and development tools that deliver added value for quantum computing applications. Their vision is to develop a universal platform for solving optimization problems and to roll it out internationally. The company was formed in July 2021 and is located in Munich, Germany. | Germany | Software |
| Aquark Technologies | Aquark Technologies is a spin-out of the University Southampton that is building the world's smallest cold atom system for quantum computing and quantum sensing applications. The company was founded in May 2021 and is located in Southampton, UK. | UK | Hardware |
| ARQUE Systems | ARQUE Systems is a spin-off of the JARA-Institute for Quantum Information of RWTH Aachen University and Research Center Jülich. The founders of ARQUE have decades of experience with semiconductor qubit technology and they are developing quantum computers based upon spin qubit technology, which they believe will be highly scalable. The company was founded in September 2022 and is located in Aachen, Germany. | Germany | Hardware |
| Artificial Brain | Artificial Brain specializes in the development of quantum computing software with a primary focus on space, energy, and aerospace. The company's mission is to solve the world’s most complex computing challenges to benefit humanity, society, and the planet. The company is headquartered in Wilmington, Delaware and has offices in India and The Netherlands. The company was formed in February 2022. | US | Software |
| Artiste-qb.net | Toronto based Artiste-qb.net is developing quantum information software that provides customers with solutions to R&D challenges and quantifiable business problems. The principals of this company have spent many years developing quantum algorithm and they already have a large library of routines available. They have recently developed a quantum computing and AI related platform image, called Bayesforge, which is provided as open source software for data scientists who need advanced analytical tools as well as for quantum computing and computational mathematics practitioners who seek to work with one of the major QC frameworks. Artise-qb.net is focusing on the global market with a particular emphasis on China and have an affiliate company in Shenzhen, China. | Canada | Software |
| Aspen Quantum Consulting | Aspen Quantum Consulting includes a team of quantum mechanics experts as well as individuals with expertise in legal, strategic consulting, and financial markets. Examples of some of their consulting work include evaluation of emergent technologies, connecting investors and inventors, personnel identification, and helping to craft a business plan. The company is based in Towson, Maryland and was formed in January 2020. | US | Consulting |
| Atlantic Quantum | Atlantic Quantum is developing scalable fault-tolerant quantum computers using superconducting technology to tackle the world’s hardest computational challenges. They will use new types of noise-protected qubits to improve coherence times by an order of magnitude compared to conventional approaches. The team includes research scientists who come from MIT and Chalmers University. The company was founded in early 2022 and is headquartered in Cambridge, Massachusetts with a European office in Gothenburg, Sweden. | US | Hardware |
| Atom Computing | Founded in 2018 and located in the Berkeley, California, Atom Computing is focused on building scalable, universal quantum computers. Utilizing techniques pioneered by quantum gas and precision measurement experiments, Atom Computing will create machines using optically trapped neutral atoms capable of reaching the large qubit numbers needed for error corrected quantum computing. | US | Hardware |
| Atom Quantum Labs | Atom Quantum Labs is designing cold neutral atoms QCs with a completely new and patented approach to preparing qubit arrays. The company was formed in 2021 and is located in Ljubljana, Slovenia. | Slovenia | Hardware |
| Aurora Quantum Technologies | AuroraQ (formerly QSpice Labs) strives to make quantum computers practical with hybrid quantum technology. They are an alumni of both the Creative Destruction Labs and Y Combinator programs. They were originally founded in Toronto, Canada in 2017 and have moved back to Waterloo, Ontario in Canada to continue work. | Canada | Hardware |
| Automatski | Automatski is an R&D holding company with locations in the Bengaluru, India and Los Angeles, California. They are performing research into several areas of quantum-inspired software to simulate various quantum computing configurations including a circuit-based quantum computer simulator, an adiabatic quantum computer simulator, and an annealing quantum computer simulator. They believe that their technology will allow them to simulate configurations with very large qubit counts. Automatski was originally registered in London in 2014, moved to India in 2016, and is now undergoing a restructuring and moving their headquarters to California. | India | Software |
| Avanetix | Formed in January 2019 and located in Berlin, Germany, Avanetix provides a vertically integrated and industry-specific application software stack that uses classical optimization methods, machine learning and quantum computing to solve supply chain challenges. Their software will utilize a hybrid approach of quantum and classical technology as powerful technologies in a unique, vertically integrated and industry-specific application software stack to simulate and optimize complex scenarios exponentially faster. They are supporting enterprises in the automotive, manufacturing and logistics industries to automate and optimize their supply chains in order to increase productivity and efficiency. | Germany | Software |
| Avid Quantum | Avid Quantum is a new distributed quantum computing cloud platform. Their goal is to offer the foundational technologies needed for organizations around the world to build powerful quantum systems. Their initial offering includes a series of courses that help teach quantum computing concepts. The company was formed in December 2020 and they are based in Milpitas, California. | US | Consulting |
| BardeenQ Labs | BardeenQ Labs aims to fully unlock the potential of the emerging technological revolution by building technologies utilizing the “quantum advantage”. To do this, they are creating a coherent platform to develop quantum technologies and spin-out products (called Quanta). Their first product, BardeenQ Waves, will be quantum-enabled vision systems and quantum AI chips to guarantee the safety of self-driving cars using a technology based upon ambient temperature quantum devices. The company was founded in 2019 and is located in the San Francisco Bay Area and Houston, Texas. | US | Hardware |
| Beit | Beit was founded in 2016 and is based in Kraków, Poland. Their main goal is to design and implement an algorithm for solving all relevant NP-complete class of problems using quantum computers. NP-complete problems are abstractions relevant for many real world problems encountered in logistics, manufacturing and warehousing at scale. Their research is co-financed by the European Funds under the Operational Program for Intelligent Development 2014-2020 with a grant that totals 10.9 Polish Zlotys (about $2.9 million USD) from all parties. | Poland | Software |
| Bita Quantum AI | Bita Quantum AI harnesses the inherent capabilities of quantum physics to drive forward the frontiers of computation and bolster security measures. They delve into transformative fields such as Plasmonic Quantum Processors, revolutionizing the way information is processed by leveraging quantum phenomena at the nanoscale. Their expertise extends to Quantum Data Protection, where they develop cutting-edge encryption methods rooted in quantum principles, ensuring unparalleled security for sensitive information in an increasingly digitized world. Moreover, they specialize in Quantum Communication, pioneering secure and efficient ways to transmit data through without even exploiting quantum channels, promising. The company was founded in May 2021 and is located in Montreal, Canada. | Canada | Communications |
| Blackhills Quantum | Blackhills Quantum provides cybersecurity consulting services for enterprises. They create secure solutions customized to their clients exact requirements, using cutting-edge practices incorporating quantum technology and advanced artificial intelligence to deter even the most aggressive cyber attacks. The company is located in Hasselt, Belgium, and Dover, Delaware and was formed in 2020. | Belgium and the US | Consulting |
| Bleximo | Bleximo is building superconducting qubit based quantum accelerators which they call “qASIC” that work in conjunction with conventional powerful computers to tackle problems which are impractical or even impossible to solve on conventional digital computers alone. The company’s initial focus will be on providing quantum accelerators for simulating the structure and properties of molecules and chemical reactions. By modeling the behavior of certain molecules, Bleximo aims to help optimize drug discovery and drug design for pharmaceutical applications. Bleximo was established in 2017 and is based in Berkeley, California. | US | Hardware |
| BlocQ | BlocQ is working to help combat the quantum threats to blockchain security. Their mission is to develop and deploy quantum-resistant solutions capable of safeguarding vulnerable cryptocurrencies before malicious actors' hacking. By leveraging their advanced quantum algorithms, BlocQ aims to protect the global cryptocurrency ecosystem. Their goal is to ensure that digital assets remain secure from quantum hackers in the post-quantum era. The company was formed in October 2023 and is located in Tokyo, Japan. | Japan | Communications |
| Bloq Quantum | Bloq helps enterprises to develop quantum algorithms 10x faster and easier and also find relevant business insights with an easy to use low-code interface. The company was founded in 2024 and is located in India. | India | Software |
| blueqat | Based in Tokyo and established in 2008, blueqat (formerly MDR) develops middleware and applications for quantum computing, collaborating with Japanese domestic companies, organizations and universities. Blueqat provides a Python based SDK (Software Development Kit) called Blueqat for universal gate model quantum computers and Superfast, an NVIDIA CUDA based simulator. Blueqat has announced an agreement with D-Wave to use their quantum computers to develop quantum computing applications for machine learning and optimization problems. | Japan | Software |
| BlueQubit | BlueQubit provides a cloud-based quantum computing software platform that offers a user-friendly interface for both amateurs and professionals in the field. BlueQubit has offers several core functions, including an intuitive job submitting process, progress tracking, and final result acquisition. The platform provides detailed reports and analysis of results, giving a user an easy-to-understand overview of their project. The company is located in the San Francisco Bay area and was formed in May 2022. | US | Software |
| Bohr Quantum Technology | Bohr Quantum indicates it has developed and built the world’s first commercial ready quantum networking system. Their technology offers precision timing, networking computers, and provably secure communication. The company was founded in 2021 and has its headquarters in Pasadena, California. | US | Communications |
| Bose Quantum (「玻色量子」) | Bose Quantum is developing quantum solutions based upon Coherent Ising Machine (CIM) technology. The founding team includes individuals from Stanford, Tsinghua, Chinese Academy of Sciences and other well-known institutions. The company was founded in November 2020 and is located in Beijing, China. | China | Hardware |
| BosoniQ | BosoniQ develops tools and applications for quantum computing with light that have boson properties. The company is a spinout of blueqat and was formed in 2021. They are located in Tokyo, Japan. | Japan | Software |
| BosonQ Psi (BQP) | BosonQ Psi (BQP) develops world-class quantum computing software solutions including but not limited to computational fluid dynamics, computational structural dynamics, computational heat transfer, multidisciplinary optimization, computational aeroacoustics. These technologies will address key challenges in the field of aerospace, automotive, power generation, chemical manufacturing, polymer processing, petroleum exploration, medical research, meteorology, and astrophysics. The company was founded in August 2020 and is located in Bhilai, Chhattisgarh, India. | India | Software |
| Boxcat | Founded in 2017 and located in Toronto, Canada, Boxcat leverages the power of quantum computing to render images and videos faster, cheaper, and more efficiently than current methods. They are targeting the media and medical imaging industries as potential customers for their solution. | Canada | Software |
| BraneCell | Founded in 2015 and headquartered in Cambridge, Massachusetts, BraneCell is building a new quantum microprocessor which can operate in an ambient environment. Their technology uses single molecule condensation and anti-condensation paired reactions in an ambient temperature apparatus. By their nature, these apparatus are artificial intelligence facile and allow for portable quantum computing because of the practical, moderate operating temperature. BraneCell’s approach is a little unique because they are targeting their technology to be used by individual customers in-house rather than access through a cloud environment. | US | Hardware |
| C12 Quantum Electronics | C12 is a spinout from a research group at the Ecole Normale Superieure in Paris. The company was founded in 2020 and is developing a spin qubit device based upon carbon nanotubes for high stability. | France | Hardware |
| Cambridge Space Technologies | Cambridge Space Technologies' mission is to provide provably secure cryptography globally. They aim to provide direct access for government and commercial users to quantum keys distributed via satellites in low earth orbit. Their first project will place a CubeSat into Low Earth Orbit (LEO) using currently available infrastructure and launch systems to facilitate a new standard of secure communications. The company was founded in April 2019 and is located in Cambridge, UK. | UK | Communications |
| Carrousel Digital | Carrousel Digital develops and promotes new Digital security devices and processes. It currently focuses on quantum safe security, with a quantum safe signature, a data transmission using entangled photons that provides fast and secure data transmission, as well as a photonic router to enable photon transmissions within a network. The company was formed in 2019 and is located in London, UK. | UK | Communications |
| Cavero Quantum | Cavero Quantum has invented what they claim are the most secure, software-based cryptographic keys in the world. Their keys secure communications from both current traditional, and future quantum attacks, and they're deployable on any device, regardless of size. The company is located in Leeds, UK and was formed in June 2024. | UK | Communications |
| Ceruleant Systems | Ceruleant Systems has a vision to reinforce Post Quantum data safety while reducing carbon emissions dramatically across data centers and increasing compute performance and energy utilization across devices from IOT to Servers. Their technology is based on symmetric block cipher encryption and larger key sizes, massively increasing decryption challenges. The company was formed in January 2019 and is located in St. Louis Park, Minnesota. | US | Communication |
| Chicago Quantum | Chicago Quantum, a division of US Advanced Computing Infrastructure, Inc. and located near Chicago, Illinois, was started in 2018 to focus on helping enterprise, commercial clients apply quantum computing to solve business problems. They also provide strategic solutions for information security, sourcing of IT services, and program management. | US | Consulting |
| Classiq | Founded in early 2020 and based in Tel Aviv, Israel, Classiq is a quantum software startup. The company builds the top layer of the quantum software stack, bringing automation and synthesis to the quantum algorithm design process and enabling quantum software development without limits. | Israel | Software |
| Cloudz AI | Cloudz AI is an enterprise grade, self hosted AI / Quantum development platform for commercial, defense customers. The company is located in Nashville, Tennessee and was founded in November 2023. | US | Software |
| CogniFrame | Cogniframe is a quantum computing company that operates FirstQ Store, the desktop accessed, aggregator plug-and-play application store for quantum and near quantum applications. The company seeks to help organizations de-risk their adoption of quantum and provide startups, developers, and others to rapidly commercialize their solutions via the FirstQ portal and its network of partners and quantum and/or near quantum infrastructure. The company was founded in 2016 and is located in Toronto, Canada. | Canada | Software |
| ColdQuanta | See Infleqtion. | US | Hardware |
| ColibrITD | ColibrITD is developing a framework called Q.U.I.C.K. (Quantum Innovative Computing Kit) to bring quantum computing to everyone. It will enable any company to submit their classical use case to be optimized for quantum computing. ColibrITD will transform the classical algorithm to an optimized quantum algorithm and select the best hardware to run it on. The company is located in Paris, France and was founded in July 2019. | France | Consulting |
| Conductor Quantum | Conductor Quantum is developing leading AI models that create qubits by learning and understanding the principles of quantum transport in semiconductor chips. Their AI software will unlock rapid qubit creation and fabrication feedback iteration. Automatic qubit creation and control will be the foundation of the first quantum operating system on semiconductor chips. Their software will help software to create qubits 1000x faster than current methods. The company was founded in June 2024 and is located in San Francisco, California. | US | Software |
| Crypta Labs | Crypta Labs, founded in 2014 and based in London, UK, has developed Quantum Random Number Generators (QRNGs) to produce truly random numbers for use in encryption. Their patent pending technology uses the quantum properties of light from a mobile device's lens and the light sensors to detect the photons beams and they count these photons to generate a random number. | UK | Communications |
| Crypto Quantique | Crypto Quantique has developed a chip that generates complete random cryptographic keys using quantum tunneling. They combine this with their their cryptographic APIs and key management system to provide a secure end-to-end IoT security platform. Crypto Quantique was founded in 2016 and is located in London, UK. | UK | Communications |
| CryptoNext Security | Formed in 2018 as a spin-off from INRIA, Paris and the Sorbonne University, and located in Paris, France, CryptoNext (formerly known as PQAT) develops quantum resistant algorithms for post-quantum cryptography. Their CryptoNext Quantum-Safe Library, is a cryptographic library that provides basic cryptographic public-key functionalities: quantum-safe signature and quantum-safe key-exchange (more precisely, Key Encapsulation Mechanism). The library offers a selection of the most promising quantum-safe algorithms selected at IETF and at the second stage of the NIST post-quantum standardization process. | France | Communications |
| CUbiQ Technologies Technologies | CUbiQ is developing a photonic integrated CV-QKD engine encapsulated in a compact module that features lower power consumption and cost than current transceivers. The company is based in Eindhoven and is closely affiliated with Eindhoven University of Technology (TU/e) and is leveraging the strong ecosystem in the Brainport region. It was formed in May 2021. | Netherlands | Communications |
| D Slit Technologies | Founded in June, 2018 and located in Tokyo, Japan, D Slit Technologies is a company that solves business problems by utilizing the principles of quantum mechanics. Their services include developing algorithms to implement applications on a quantum computer, providing a wide range of consulting support on quantum computing, and investigating the latest research on quantum computers and supporting proof-of-concept (PoC) demonstrations. | Japan | Software |
| Dark Star Quantum Computing Laboratories | Dark Star Quantum Computing Laboratories is a Defense/Space company currently conducting research & development in Applied Quantum Mechanics, Applied Quantum Electrodynamics (QED), and quantum information science (QIS). They provide the United States government and Industry with UI/UX-friendly quantum computing software applications for use case analysis. Their unprecedented quantitative simulation modeling capabilities will provide insights and approximation capabilities of QC algorithms, and QIS-networking solutions which can be used to model a growing menagerie of use cases spanning the defense, aerospace, and space ex technology. The company was founded in July 2020 and is headquartered in Raleigh, North Carolina. | US | Software |
| Data Analytica | Data Analytica was formed in 2011 and originally named Data Nubes. Their goal is to use Artificial Intelligence (AI) and Machine Learning (ML) technologies to help businesses streamline processes, extract value, lower the time-to-answer, as well as the IT costs, and ultimately increase productivity and competitiveness. They have expanded their offerings to include quantum computing related software and education. They have recently introduced a quantum simulator called DAQSim and are offering quantum consulting either on-site or over the internet. The company is based in Dripping Springs, Texas. | US | Software |
| Delft Circuits | Delft Circuits is based in Delft, The Netherlands and provides quantum hardware solutions. Their Cri/oFlex® product line, is an ultra-low thermal conductance and massively scalable cryogenic I/O solution using superconducting circuits on flexible substrates. They also design and fabricate custom-engineered superconducting quantum circuits and cryogenic instrumentation. | Netherlands | Hardware |
| Delta g | Delta g is a UK based company that has recently spun out of the UK Quantum Technology Hub Sensors and Timing at the University of Birmingham. It is a company focused on developing a gravity gradiometer for scanning beneath the earth’s surface for utility mapping, smart cities, smart mining, and building information modelling (BIM). The company was founded in 2023 and is located in Birmingham, UK, | UK | Sensors |
| Deteqt | Deteqt is an early stage start-up company commercializing diamond-based quantum sensors to provide small, sensitive, and stable magnetometry. They have a prototype and are actively building global partnerships. The company was formed in 2024 and is based in Sydney, Australia. | Australia | Sensors |
| DiaSense | DiaSense will deliver a quantum diamond magnetic microscope for sensing of magnetic fields at a high rate with microscopic resolution and unprecedented levels of sensitivity.This will be applied in biomedical studies for applications like early diagnosis of neurodegenerative diseases or for the search of the cure. The company is located in Denmark and was formed in early 2024. | Denmark | Sensors |
| Dirac | Dirac is working to reshore American manufacturing by writing software for robotics that runs on quantum computers, enabling existing robots to do tasks that they were never capable of before and make manufacturing cheaper to do domestically. This will provide a more resilient supply chains, better manufacturing processes, and fewer dependencies on hostile foreign powers. The company was formed in April 2021 and is headquartered in Baltimore, Maryland. | US | Software |
| Diraq | Diraq aims to redefine scalable quantum computing and bring practical commercial applications to the world via billions of qubits on single chip using silicon quantum dot technology, compared to the hundreds of qubits that exist today. The company is configuring as an end-to-end quantum computing provider – to provide quantum hardware and software as a full stack, cloud accessible service. The company is a spinoff from the University of New South Wales (UNSW) in Sydney, Australia and was founded in May 2022. | Australia | Hardware |
| Dobslit | Dobslit Serviços e Tecnologias Quânticas Ltda. is the pioneer company in Brazil in Second Generation Quantum Technologies. They were born with the clear objective of being the vanguard in the country and in Latin America and a reference in this segment. They provide a variety of quantum related good and services including Quantum Computing as a Service (QCaaS), small, educational quantum computers, algorithms, and quantum education courses. The company was founded in 2021 and is located in São Carlos, Brazil. | Brazil | Multiple |
| Driven Quantum Technologies | Driven Quantum Technologies was founded in April 2019 and is based in the Washington, DC area. They are involved in the development of IP for eventual technology licensing to companies involved in designing quantum computing related products for quantum sensing/metrology, quantum biology, military/intelligence, medical/assistive, and other applications. The company is still in stealth mode. | US | Multiple |
| Duality Quantum Photonics | Duality Quantum Photonics designs and prototypes quantum technologies in integrated photonics. The company was founded in February 2020 and is located in Bristol, England. | UK | Hardware |
| EeroQ | EeroQ is a quantum hardware start-up headquartered in Chicago, Illinois and founded in 2016. They are working on developing a unique quantum chip that would have potential advantages over other qubit technologies. Their technology is based upon an electronics on helium approach which is described here. EeroQ is co-founded by Professor Johannes Pollanen at Michigan State University (MSU), Nick Farina and Faye Wattleton. Professor Pollanen has funding from MSU and an NSF grant, and EeroQ has additional private investors. | US | Hardware |
| eleQtron | eleQtron develops and operates quantum computers based on trapped ions, RF control and Magnetic Gradient Induced Coupling (MAGIC). Their intermediate-scale quantum processors will be optimized for near-term industrially relevant quantum applications. They will also implement breakthrough concepts for scalable quantum processors based on RF-controlled trapped ions. eleQtron will operate MAGIC quantum computers and offer quantum computer performance with a subscription model. The company was founded in May 2020 and is located in Siegen, Germany. | Germany | Hardware |
| Elyah | Elyah is a quantum software company that actively builds and improves upon existing quantum algorithms to make them faster and easier to implement for future quantum computer applications. The company offers a visual quantum programming tool called Quantum Workbench. They were founded in 2018 and are based in Tokyo, Japan. | Japan | Software |
| Entangled Networks | Entangled Networks is developing a quantum interconnect and supporting software to enable multi-core architectures which will solve the scalability challenge. The approach is similar to the one used for building CPU interconnects used in supercomputers via special purpose equipment. The company was acquired by IonQ in January 2023. | Canada | Communications |
| Entanglement Inc. | Entanglement Inc. is a leading quantum and novel computing company accelerating Quantum Information Science and Artificial Intelligence (AI) innovations. Entanglement brings together diverse forms of computing systems from best-of-breed companies, integrates them in a secure facility – the ultimate high performance playground to experiment, ideate, iterate and innovate. The company was founded in 2017 and is headquartered in New York City. | US | Other |
| Entanglement Partners | Entanglement Partners is a consulting firm with headquarters in Barcelona, Spain that provides consulting services in the areas of Events & Communications, Go-to-Market, Infrastructure, Quantum Applications, Strategic Consulting, and Venture Building. They have additional resources in Madrid, Spain, San Jose, California, and Kerala, India. | Spain | Consulting |
| Entropica Labs | Entropica Labs is a Singapore based quantum software company. They are focusing on using quantum computing for computational genomics applications in market segments such as healthcare, pharmaceuticals, and agritech. Entropica Labs has support from the SGInnovate, Creative Destruction Lab and Entrepreneur First (EF). | Singapore | Software |
| equal1.labs | equal1.labs has been developing silicon based quantum computer technology since 2017 in collaboration with the University College Dublin. Their hardware development laboratory is in Fremont, California and their silicon design center is at NovaUCD in Dublin, Ireland. They are using a GlobalFoundries FDX-22nm FD-SOI process to develop silicon based qubit chip with integrated control electronics. Their next test chip will integrate 424 qubits into a controllable quantum gate matrix allowing efficient implementations with C3NOT arrays with adjustable connectivity. | Ireland and U.S. | Hardware |
| Ephos | Ephos is building the essential infrastructure for quantum technologies. Leveraging pioneering femtosecond laser writing techniques, they create the high fidelity quantum chips that can power the most advanced modular quantum architectures. Their chips can be used in quantum sensors, quantum communications, and quantum computing applications. The company was founded in July 2022 and is based in Milan, Italy and San Francisco, California. | Italy and U.S. | Hardware |
| evolutionQ | evolutionQ offers a suite of proprietary products and services including quantum risk assessments, roadmap design and implementation, quantum safe hardware and software, and education services to allow organizations to avoid quantum security threats to their IT infrastructure. They are based in Waterloo, Ontario, Canada and were formed in 2015. | Canada | Communications |
| EYL | EYL provides an tiny 5-millimeter quantum random number generator chip based upon a radioactive isotope method. EYL is also developing an ultralight chip encrypter for all IoT devices as well as a thin film-type quantum random generator for ID and credit cards. The company was formed in 2015 and is headquartered in Seoul, South Korea with additional offices in Arlington, Virginia. | South Korea | Communications |
| finQbit | finQbit provides a platform that covers the complexity of quantum computers and accelerates customer's ability to start using quantum technology. This helps customers focus on their business while still obtaining the benefits of quantum technology without spending two years studying quantum technology. The company was formed in June 2023 and is located in Krakow, Poland. | Poland | Software |
| First Quantum | First Quantum provides solutions for core quantum computing applications with their proprietary quantum Karnaugh map-based optimization protocol and intellectual properties their customers would need. Their primary focus is on the computational fluid dynamics governed by the Navier-Stokes nonlinear partial differential equations whose solution is essential to aerospace industry, astrophysics and numerical weather and climate prediction, to name a few. They are also investigating quantum algorithms for financial engineering problems including portfolio optimization and derivative pricing. The company is located in Seoul, South Korea and was founded in March 2022. | South Korea | Software |
| Fixstars Amplify Corporation | Fixstars Amplify provides a cloud platform for combinatorial optimization problems with a variety of "next generation accelerators" as backends, including quantum annealing, Ising machines and gate level quantum computers. The company is located in Tokyo, Japan and was formed in October 2021. | Japan | Software |
| Florence Quantum Labs | Florence Quantum Labs tackles the climate crisis through interdisciplinary innovation. Their interdisciplinary expertise converges in Behavioral Economics, Quantum Machine Learning, Climate and Atmospheric Sciences, and Advanced Mathematics. Through Quantum Cognition, they decode human behavior, optimize decision-making, and forecast environmental dynamics. Grounded in behavioural insights and cutting edge research, their interventions reshape societal norms for sustainability. The company is located in Chennai, India and was founded in June 2024. | India | Software |
| ForeQast | ForeQast provides a next generation optimization platform for routing, scheduling, inventory optimization and other logistics and supply chain applications. Their solution leverages both machine learning and quantum optimization tools to offer a quantum-enhanced logistics planning platform. The company is located in Waterloo, Canada and was founded in January 2021. | Canada | Software |
| g2-Zero | g2-Zero is a spin-off of the Institute of Micro and Nanotechnology of the National Spanish Research Council (IMN-CSIC) and the Technical University of Madrid. They are is developing single photon sources which are purely electrical, vibration-resistant and alignment-free. The company was formed in December 2020 and is located in Madrid, Spain. | Spain | Components |
| Good Chemistry | Good Chemistry provides QEMIST Cloud, a cloud-native, AI-powered, quantum-computing compatible platform to enable high-throughput high-accuracy computational chemistry simulations. The company was spun out of the quantum simulation division at 1 QBit in 2021 and they are located in Vancouver, Canada. The company has recently been acquired by SandboxAQ, | Canada | Software |
| Groovenauts | Groovenauts is a software company with expertise in utilizing AI and quantum technologies. Based on its proprietary advanced technologies in areas including AI and quantum technology, Groovenauts develops and provides IT services to support digital transformation (DX) in the private sector and municipal governments. MAGELLAN BLOCKS, Groovenauts' flagship SaaS software, incorporates cutting-edge technologies and advanced mathematical models, including world-leading use of quantum annealing. The company is located in Fukuoka City, Japan and was founded in 2011. | Japan | Software |
| H-Bar Consultants | Headquartered in Melbourne, Australia and founded by experts in quantum physics and technology, h-bar is the first consultancy specializing in quantum technology. They act as intermediaries and/or advisors for organizations looking to make investments or investigate issues related to quantum technology. They can advise clients globally on both business and technical issues. | Australia | Consulting |
| Haiqu | Haiqu is a quantum computing startup that builds enabling quantum software to run scalable applications on a modern noisy quantum hardware. Their goal is to accelerate the timeline to practical quantum computing by developing novel software that can extract value out of clumsy near-term quantum hardware. The company was incubated in the Fall 2022 stream at the Creative Destruction Lab and has a distributed team spanning the United States, Ukraine, Canada, Germany, and Switzerland. | International | Software |
| Hefei Wanzheng Quantum Technology | Hefei Wanzheng Quantum Technology Co., Ltd. is a high-tech enterprise incubated by the core team of academicians of the University of Science and Technology of China and the Key Laboratory of Quantum Information of the Chinese Academy of Sciences. The company will take ion traps and optical systems as the core products to provide high-performance distributed quantum computing core devices, customized optical products, quantum measurement and control software and equipment, and quantum computing education services for the majority of scientific research users. The company was founded in July 2022 and is located in Hefei, China. | China | Hardware |
| HEQA Security | HEQA Security (formerly QuantLR) provides QKD products. Built to secure networks at scale, the HEQA Security solution is developed to be cost-effective without compromising the highest level of security possible. Emphasizing ease-of-use, HEQA Security solutions seamlessly fit into existing communication environments, just like existing hardware such as a router or switch. HEQA Security was was founded in 2018 under their original name of QuantLR and is located in Modi’in, Israel. | Israel | Communications |
| High Precision Devices (HPD) | HPD designs and delivers advanced cryogenic instruments and research equipment to support quantum information and superconducting supercomputing development companies. Their systems solutions, including probe stations and scanning probe microscopy, deliver very low temperature and vibration environments with excellent optical and electrical access. HPD is a private company formed in 1993 and located in Boulder, Colorado. | US | Hardware |
| Horizon Quantum Computing | Launched in January 2018, Horizon Quantum Computing is a Singapore-based early stage start-up focused on building software development tools to drive the next computing revolution. | Singapore | Software |
| HQS Quantum Simulations | Formed in 2018 and based in Karlsruhe, German, HQS Quantum Simulations (formerly Heisenberg Quantum Simulations) is developing quantum algorithms to predict molecular properties for performance materials, specialty chemicals and pharmaceutical companies. They also have developed a port between ProjectQ and Cirq, called CirqProjectQ. This port is a ProjectQ backend which can convert a ProjectQ algorithm to native Xmon gates that can be used to simulate a Google quantum computer with ProjectQ. | Germany | Software |
| Huawei | Although they are definitely not a startup company, Huawei is privately held by their employees and is the largest telecommunications equipment manufacturer in the world. They are based in Shenzhen, China and achieved revenue of about $92 billion USD in 2017. They recently announced the HiQ Quantum Computing Simulation Cloud Service Platform and have described it as their first step in the research and innovation of quantum computing. | China | Other |
| Icarus Quantum | Icarus Quantum is a spinout of the Quantum Nanophotonics Group at the National Institute of Standards and Technology (NIST). Icarus is developing on-demand single- and entangled-photon generators for scalable quantum networking applications. The company is participating in the third cohort of the Duality Accelerator, hosted by the Polsky Center at the University of Chicago and the Chicago Quantum Exchange. Icarus Quantum was founded in January 2022 and is located in Boulder, Colorado. | US | Communications |
| Icosa Computing | Icosa Computing builds end-to-end products that increase the execution capability of decision-makers in finance. Their software is deployable on quantum and physics enhanced hardware to solve large combinatorial optimization problems, unsolvable with conventional methods. Their products are used by financial institutions to tackle use-cases such as portfolio optimization, index tracking, pairs trading, and currency arbitrage. The company was formed in May 2022 and is located in New York City. | US | Software |
| ID Quantique | ID Quantique, based in Switzerland, provides quantum-safe network encryption, secure quantum key generation and quantum key distribution solutions and services to the financial industry, enterprises and government organizations globally. | Switzerland | Communications |
| Inception Q | Inception Q is focused on applying quantum image processing and complex network analysis to accelerate the discovery and neurobiological characterization of complex structural and functional connectivity patterns within the human connectome. The company is located in San Francisco, California and was founded in July 2020. | US | Software |
| InfiniQuant | InfiniQuant is located in Erlangen, Germany and hosted at the Max Planck Institute for the Science of Light. They are in an early startup phase and are focusing on the development of Continuous Variable Quantum Key Distribution (CV-QKD) products based upon satellite and telecom fiber quantum channels. | Germany | Communications |
| Ingenii | Ingenii’s mission is to enable data scientists to solve the world’s most complex life and environmental science problems by unlocking the power of quantum computing at scale. By simplifying data and quantum engineering, they make advanced modeling and analytics more attainable than ever for in-house teams. That way, data scientists can focus on finding creative solutions for the world’s most pressing issues. Ingenii's data engineering platform, standalone quantum algorithm library, off-the-shelf quantum solutions, and expert data engineering consulting are making quantum machine learning and other advanced analytics more attainable than ever for in-house teams. The company is headquartered in New York City, New York and was founded in August 2021. | US | Software |
| Inspiration-Q | The mission of Inspiration-Q is to help forward-looking companies benefit from the short-term advantages of quantum computing, and to help them in their quantum-ready journey with an agile adoption of the future quantum revolution. They offer a SaaS of quantum-inspired and quantum algorithms that work on both ordinary and quantum backends, as well as specialized use cases for the finance industry. The company was founded in November 2020 and is located in Madrid, Spain. | Spain | Software |
| infinityQ | InfinityQ is creating the first Quantum CMOS chip technology to operate at room temperature. They are using a fresh approach to quantum mechanics and electronics to exploit quantum effects at room temperature. Their goal is to design dedicated quantum hardware and bespoke applications which will be more compact, efficient, robust and accurate than existing systems enabling local integration for security and speed. The company is located in Dollard-des-Ormeaux, Quebec, Canada and was formed in January 2020. | Canada | Hardware |
| Infleqtion | Infleqtion, formerly ColdQuanta, was founded in 2007 as a spin-off from the University of Colorado Boulder. They develop and design instruments, components and systems for scientific and industrial quantum applications such as cold atom experimentation, quantum simulation, quantum information processing, atomic clocks and inertial sensing. Infleqtion is also developing a quantum computer based on laser cooled neutral Cesium atoms. | USA | Multiple |
| IQM Finland | Founded in 2018 as spin-off of the Quantum Computing and Devices research group of Aalto University, IQM is building scalable hardware for universal general purpose quantum computer based upon superconducting qubits. They provide on-premises quantum computers for research labs and supercomputing centers and offers full access to its hardware. For industrial customers, IQM delivers quantum advantage through a unique application-specific co-design approach. The company is building Finland’s first commercial 54-qubit quantum computer with VTT, and an IQM-led consortium (Q-Exa) is building Germany’s quantum computer that will be integrated into an HPC supercomputer to create an accelerator for future scientific research. The company has over 130 employees with headquarters in Espoo, Finland and additional offices in Bilbao, Spain and Munich, Germany. | Finland | Hardware |
| iQrypto | iQrypto provides microchips and Quantum Random Number Generators to foster a safer, more secure digital future. They also provide consulting and services to support development and integration of quantum technologies for customer's specific security and sensing needs. The company was founded in November 2021 and is located in Mons, Belgium. | Belgium | Communications |
| ISARA | Based in Waterloo, Ontario, Canada and founded in 2015, ISARA provides quantum computer resistant software products and also provides customers with quantum readiness security planning. A key product is the ISARA Radiate Security Solution Suite which provides public key encryption and digital signature algorithms which cannot be broken by a quantum computer using Shor’s algorithm to factor a large prime number or by any other known classical or quantum algorithm. | Canada | Communications |
| Janis Research | Janis Research is a private company and is the only U.S. commercial manufacturer of dilution refrigerators for superconducting quantum computers. They were founded in 1961 and are located in Woburn, Massachusetts. For quantum computing applications, Janis offers the JDry series of cryogen-free dilution refrigerators with two different standard sized models along with a LabVIEW™ based JACoB gas handling controller to make running the refrigerators an easy task. | US | Hardware |
| Jij | Jij conducts R & D and software development aimed at practical application of annealing machines by a team mainly composed of experts who are conducting theoretical research on quantum annealing and applied research on real world problems. They are developing OSS software for the Ising Model (QUBO) called OpenJij. They were established in November 2018 and are located in Tokyo, Japan. | Japan | Software |
| JoS QUANTUM | Founded in 2018 and located in Frankfurt am Main, Germany, JoS Quantum will provide software algorithms for quantum computers to speed up and improve the financial service industry. They plan on providing software packages, system integration services and an API to access quantum computers remotely with a particular focus on optimization problems for use cases such as risk management, fraud detection, trading, and more. Besides developing their own products they will also provide research-as-a-service (RaaS) and consulting services for knowledge transfer and software integration. | Germany | Software |
| KETS Quantum Security | KETS Quantum Security is based in Bristol, United Kingdom and has developed a range of technologies for quantum-secured communications, including quantum key distribution (QKD) and quantum random number generation (QRNG). Their devices are based on integrated photonic technologies leading to miniaturization, cost-effective manufacture, and complex functionality. KETS provides consulting services and joint development services to assist SMEs and global corporation in the custom development of quantum-secured solutions. | UK | Communications |
| Ki3 Photonics | Ki3 Photonics develops photonics hardware for the generation and processing of broadband quantum signals. The devices are designed to integrate into existing optical fiber networks, an essential feature for the development and commercial success of quantum technologies. The company is located in Montreal, Canada and was founded in January 2015. | Canada | Communications |
| Kipu Quantum | Kipu Quantum's value proposition is to bring usefulness to quantum computing within the next few years by utilizing hardware-optimized designs for use case-specific solutions. With quantum algorithms based on their unique technological paradigms, orders of magnitude fewer qubits are needed than with competing approaches.” The company is based in Karlsruhe and Berlin, Germany and was formed in April 2021. | Germany | Multiple |
| kiutra | Kiutra develops fully-automatic solutions that generate cryogenic temperatures in the Kelvin and sub-Kelvin regime for quantum computers using a magnetic refrigeration technique. Unlike other technologies, their approach does not require use of the Helium-3 isotope which can be in short supply. They indicate their solution is user-friendly, low-maintenance and scalable. The company is a spinoff of the Technical University of Munich (TUM), was founded in July 2018 and is located near Munich, Germany. | Germany | Hardware |
| Korea Quantum Computing | Korea Quantum Computing (KQC) aims to provide full stack services both in Quantum and AI and software developer for various industries in Korea. They offer offers cloud access to IBM's quantum systems as well as IBM GPU and AIU systems, advanced systems optimized for AI. They are also working to craft practical and commercially viable quantum algorithms and software across various industries, with a specific emphasis on cultivating partnerships in Finance, Bio Science, and Logistics. The company is located in Busan, South Korea and was started in December 2021. | South Korea | Services |
| Kunfeng Quantum Technology | Kunfeng Quantum Technology is an entrepreneurial enterprise dedicated to the development and application of quantum technology. The company's team includes technology and business industry veterans to support and promote the design, development, and application exploration of quantum technology by combining professional engineering and scientific research capabilities. The company is located in Shanghai, China and was founded in 2018. | China | Consulting |
| kvantify | Kvantify is a consulting company that helps companies reap the benefits of Quantum Computing. They create value for their clients by starting from their business problem and then searching for the best possible solution. They will help clients develop solutions take advantage of the increasingly capable quantum hardware of the future and improve their classical methods on the way. Kvantify was formed in March 2022 and is located in Copenhagen, Denmark. | Denmark | Consulting |
| levelQuantum | levelQuantum has a vision of securing the entire worlds communications using their state-of-the-art device-independent secret key distribution protocols employing quantum physics. They provide solutions based upon fiber-based QKD, free-space QKD, and QKD over satellites. The company was founded in March 2022 and is located in Milan, Italy. | Italy | Communications |
| Low Noise Factory | Low Noise Factory designs and sells very high performance room temperature and cryogenic low noise amplifiers. The bulk of their sales is to the quantum computing market and they are part of part of EU funded OpenSuperQ (An Open Superconducting Quantum Computer) project. Low Noise Factory is based in Göteborg, Sweden and was founded in 2005. | Sweden | Hardware |
| LQUOM | LQUOM is developing Quantum Repeater technology to enable long distance quantum communication. Their first product is the LQ-PS-100 Cavity-enhanced two-photon source intended to be used as a component for systems with quantum repeaters. The company is located in Yokohama, Japan and was founded in January 2020. | Japan | Communications |
| LuxQuanta | LuxQuanta is a spin-off the Institute of Photonic Sciences (ICFO) in Bercelona. They strive to deliver Quantum Key Distribution (QKD) systems and technologies to be integrated into existing network infrastructures while capable of delivering a quantum-safe layer of security on top of mathematical cryptographic techniques. The company was founded in May 2021 and has its headquarters in Barcelona, Spain. | Spain | Communications |
| M-Labs | Founded in 2007 and located in Hong Kong, M-Labs main project today is ARTIQ (Advanced Real-Time Infrastructure for Quantum physics), a leading-edge control system for quantum information experiments. This hardware and software solution was originally developed in partnership with the Ion Storage Group at NIST, and is now used and supported by a growing number of research institutions worldwide. | Hong Kong | Multiple |
| Magiq | Magiq with R&D facilities in Somerville, Massachusetts previously developed quantum key distribution products called the QPN-8505 and Q-Box. These are no longer actively marketed as standard products, but Magiq will develop custom solutions for customers based upon the technology that they developed for these products. | US | Communications |
| Maybell Quantum Industries | Founded in March 2021, Maybell Quantum is a Denver-based quantum infrastructure company. Maybell's mission is to deliver the world's best tools to solve the toughest quantum challenges, offering solutions that are more accessible, reliable, and performant. The current product lines consists of dilution refrigerators, flexlines, other wiring, They also offer facilities called MayQ Lab in Cophenagen and Denver which are an expert supported, full-stack quantum hardware facilities designed to accelerate quantum research and innovation for external customers. | US | Hardware |
| memQ | memQ is a spinout from the University of Chicago that is developing an on-chip quantum repeater built on the company’s solid-state rare earth based (Erbium) technology platform to enable the quantum internet. The company was formed in July 2022 and incubated at the Duality Quantum Accelerator. They are located in Chicago, Illinois. | US | Communication |
| Menten | Menten is a biotech startup developing a software platform for protein design using next-generation technology that leverages machine learning and quantum computing. The team has made significant progress towards their goal by developing the first fully scalable algorithm for peptide and protein design on a quantum computer and creating the world’s first peptide designed on a quantum computer. Menten was founded in August 2018 and they are located in Toronto, Canada. | Canada | Software |
| Mesa Quantum | Mesa Quantum is developing chip-scale quantum sensors for next-generation GPS capabilities in position, navigation, and timing. The company was founded in 2023 and is located in Colorado. | US | Sensors |
| Miraex | Miraex develops, manufactures and offers photonic and quantum solutions for next generation sensing, networking and computing. Their industrial sensing solutions prevent asset failure before it happens in the most demanding environments, where standard electronic sensors do not work. They also build quantum integrated circuits for high sensitivity measurements and distributed quantum computing infrastructures. A key focus of the Miraex team’s quantum roadmap is to build the hardware that solves the challenge of connecting different QPUs (quantum processing units) together. This will enable the realization of a quantum internet, i.e. a distributed network of quantum computers connected via secure optical communication channels. Miraex has come up with their quantum converter, which can convert stationary (microwave) qubits into flying (optical) qubits and vice versa. The company was founded in 2019 and is based in Lausanne, Switzerland. | Switzerland | Multiple |
| Molecular Quantum Solutions | Molecular Quantum Solutions (MQS) provides computational tools to accelerate research & development efforts by the pharma, biotech and chemical industry. Their tools make use of super- and quantum-computers with computational models and algorithms to calculate the properties of materials and chemicals in a fast and efficient way. The company was founded in September 2019 and is located in Copenhagen, Denmark. | Denmark | Software |
| Moth Quantum | Moth's mission is to research and develop quantum computing technologies that will enable a new frontier in music, gaming, and the arts. They believe that quantum will lead to a transformative intellectual and cultural movement, and Moth is dedicated to making this vision a reality. They are based in London, England and were formed in February 2024. | UK | Software |
| Multiverse Computing | Multiverse Computing provides software for companies in the financial industry that want to gain an edge with quantum computing. Their fields of expertise include portfolio optimization problems, risk analysis, and market simulation. They were formed in December 2017 and are based in San Sebastián, Basque Country, Spain. | Spain | Software |
| Murray Associates of Utica | Murray Associates of Utica is focused on development of quantum-based technologies applications. They work in areas including quantum computer algorithm development, theoretical analysis of quantum based processes/devices and quantum engineering and are uniquely positioned to leverage our partnerships and relationships with organizations like the Air Force Research Laboratory and other private industry companies. The company is located in Utica, New York and was formed in January 2022. | US | Consulting |
| Nanofiber Quantum Technologies | Nanofiber Quantum Technologies (NanoQT) is a quantum computer hardware startup using a unique technology of nanofiber-based Cavity QED (Quantum Electrodynamics) system researched and developed by Professor Takao Aoki of Waseda University's Faculty of Science and Engineering. They aim to develop a universal quantum computer with distinctive scalability compared to conventional implementation methods. Furthermore, their technologies enables a full integration of quantum computers into a quantum communication channel, to realize a quantum network. The company is located in Tokyo, Japan and was formed in April 2022. | Japan | Hardware |
| neQxt | neQxt is a full-stack quantum computing company, covering the entire spectrum from hardware production to software development. The company has its roots in the Johannes Gutenberg University of Mainz, where it originated from the Schmidt-Kahler research group. This connection allows neQxt to benefit from decades of experience in the field of ion trap quantum computers. The company was founded in September 2022 and is located in Erlenbach am Main, Germany. | Germany | Hardware |
| NetraMark | Located in the Toronto, Canada area and formed in late 2015, NetraMark uses classical and quantum machine learning to help pharmaceutical companies with failing or failed clinical trials and also to predict novel drug targets. They believe that their analytical tools can reveal insights about safety, placebo, and response that lead to massive savings in time and money for pharmaceutical companies. NetraMark is another alumni of Toronto’s Creative Destruction Lab’s Quantum Machine Learning program and they are currently working with several pharmaceutical companies to apply their technology. | Canada | Software |
| networkQ | networkQ is a startup building quantum networks for the future. The company was founded in 2022 and is located in India. | India | Communications |
| Next Generation Quantum | Next Generation Quantum is working to link multiple quantum computers in one network for data centers and tech companies to provide up to one million times computation acceleration, with a100-fold reduced energy consumption. This technology unlocks the power of industrial scale quantum computing and enables groundbreaking applications in many areas, including cyber security, finance, and biotech. The company is located in New York City and was founded in 2019. | US | Communications |
| NextGenQ | Founded in 2019 and based in Rennes, Brittany, France, NextGenQ is working to build a quantum computer using ion trap technology. | France | Hardware |
| nodeQ | nodeQ provides software that enables optimal design of a quantum computing network. Their advanced software tools enable a customer to design a quantum network, optimize its architecture and components, and realize its real-time control at the optimal working point. This includes accounting for a network's hybrid architecture, minimizing its costs/requirements, and maximizing its ultimate performance. The company is headquartered in York, UK and was formed in August 2021. | UK | Communications |
| Nord Quantique | Nord Quantique develops quantum processors based on a second-generation technology. They have developed a technology that aims to reduce, as much as possible, the number of physical qubits required to encode a single logical qubit. The company aims to address the current quantum processor's problems and to deploy the full potential of quantum computer applications. The company is located in Sherbrooke, Quebec, Canada and was founded in 2020. | Canada | Hardware |
| Nordic Quantum Computing Group (NQCG) | NQCG was formed to build fully programmable and scalable optical quantum computers and make them available for research and business in the cloud. NQCG was originally formed in 2000 and was based in Oslo, Norway, The company ceased business operations in December 2024 due to chalenges related to the lack of a Norwegian national strategy for quantum, issues in recruiting international talent, and taxes. | Norway | Software |
| Nu Quantum | Founded in September 2018 and located in London, UK, Nu Quantum is a spin-out from the Cavendish Lab at the University of Cambridge developing the entanglement fabric essential to scaling quantum computers. The company is positioned to deliver a flexible platform that is adaptable to all qubit modalities, while delivering order-of-magnitude improvements in rate and fidelity over the current state-of-the-art. | ing | Communications |
| ODE, L3C | ODE's mission is to change the world by solving non-deterministic polynomial-time hardness chemistry problems with quantum algorithms running on any suitable computing platform including classic, hybrid classic-quantum digital or analog hardware. They have developed an algorithm called Quantum Learned Electrons and Nuclei (QLEAN) which they believe can provide better simulations than currently available computational chemistry packages that implement the Born-Oppenheimer (BO) approximation. ODE is based in Spokane, Washington and was formed in December 2018. | US | Software |
| Opacity | Opacity provides a software product called Quiver which maps out a detailed error landscape across a device to pinpoint and suppress errors and verify operation across the full quantum stack. They use a new approach based on learning a device's Hamiltonian. Quiver provides a complete analog characterization of the noise in a device including unwanted inter-qubit interactions. It uses state-of-the-art statistical learning that is efficient and scalable, both experimentally and computationally. This enables noise mitigation at the software level and informs future iterations of hardware design. Opacity is based in Sydney, Australia and was formed in 2020. | Australia | Software |
| OpenQuantum | Quantum Computing has a huge barrier for entry, high costs and significant technical knowledge make it almost impossible to learn about. These issues limit innovation and frustrates a community of existing people working in the field. OpenQuantum believes that the adoption of Open Source Quantum Computing has the chance to overcome all of these issues and solve the biggest challenges faced by the industry. They believe in helping to accelerate development, and the science as a whole. They are taking practical steps to invest in the Community, Create Hardware Products, Provide Support Packages, Education & R&D opportunities. Their products can be used by the biggest and smallest companies and are agnostic to software or use case - everyone's invited to the party. The company is located in Norwich, UK and was started in November 2023. | UK | Multiple |
| Orange Quantum Systems | Orange QS offers products to test quantum chip performance. Creating the test equipment and protocols needed to obtain relevant information about this performance requires extensive developer time and expertise. Orange Quantum Systems was spun out of QuTech in April 2020 and is located in Delft, The Netherlands. | Netherlands | Hardware |
| Orbital Quantum | Orbital Quantum is a start-up specializing in Quantum Sensors to resolve the limitations of classical sensor technology. The company is currently in stealth mode. Orbital Quantum was founded in June 2023 and is based in Toronto, Canada. | Canada | Sensors |
| ORCA Computing | Based in London, UK and founded in September 2019, ORCA Computing is developing a scalable and flexible quantum computing using photonic technology. They have a proprietary quantum memory technology which allows storage and greater synchronization of quantum operations. This enables a ‘repeat-until-successful’ operation, rather than requiring a large number of separate components that work in parallel. | UK | Hardware |
| Orientom | Orientom develops a platform that can use multiple financial algorithms such as derivative pricing, forex, and portfolio optimization to provide a service that has never existed before. They bring quantum to the cloud. The company was founded in 2013 and is located in Seoul, South Korea. | South Korea | Software |
| Origin Quantum Computing | Origin Quantum Computing was founded on September 2017 in Heifei, China by the doctoral team of the quantum information laboratory at the Chinese Academy of Sciences. They say that they are the first startup company in China whose main business is the development and application of quantum computers and indicate they will release China’s first quantum computing control system very soon. They have released a quantum software development kit called Qpanda 2.0 on GitHub which can be use to create quantum circuits and experiments on various quantum computers. Origin Quantum Computing has developed a 2 qubit chip based on quantum dot technology and a 6 qubit chip based on superconducting technology. They are also working on a full quantum computer as well as quantum cloud service platforms for both quantum simulators and quantum hardware chips. | China | Hardware |
| Oxford Ionics | Founded in April 2019 and located in Oxford, UK, Oxford Ionics is a new quantum computing spin-out from the Department of Physics at the University of Oxford. working to create a commercially viable ion trap based quantum computer. | UK | Hardware |
| Oxford Quantum Circuits | Oxford Quantum Circuits was founded in June 2017 by Professor Peter Leek, who is based at the Clarendon Laboratory Oxford, and is aiming to build a quantum computer based upon a superconducting circuit approach to forming qubits. The intention is to leverage the latest technology in this field and overcome the key challenge that has confounded researchers to date scaling the system up to a large number of qubits. Parkwalk Opportunities Fund Inc provided them with Series A funding in September 2017 for an undisclosed amount. | UK | Hardware |
| ParityQC | ParityQC (short for Parity Quantum Computing) was founded in January 2020 in Innsbruck, Austria and is a spin-off from the University of Innsbruck. They are a quantum architecture company which develops blueprints for quantum computers to solve optimization problems. The architecture delivers the instruction set and layout for quantum chips, be it digital or analog. They have a related software suite called ParityOS which optimizes the quantum algorithms as well as the hardware parameters. Their belief is that the co-development of hardware design and quantum algorithms facilitates the advantage of a perfectly aligned quantum computer for optimization problems. The architecture is based on the LHZ architecture and is compatible with all current hardware platforms including both gate-based and annealing methods. This allows them to provide a fully programmable, parallelizable (no SWAP gates), and scalable architecture which can be built with a greatly reduced complexity and a quantum optimization architecture which is independent from the problem. | Austria | Other |
| Pasqal | Located in Palaiseau, France (near Paris) and founded in 2019, Pasqal is building a programmable quantum simulator using atomic arrays of neutral atoms. The technology is based upon work done by the Quantum Optics – Atoms group within the Laboratoire Charles Fabry at the Institut d’Optique. | France | Hardware |
| Patero | Patero GmbH was founded in November 2017 specifically for the development and commercialization of a mobile phone with its own built-in proprietary quantum resistant crypto hardware (made in Germany) for the encryption of voice and data communication. Their technology will be made available to customers who have particularly high demands on secure communication and exchange of information, especially for authorities, journalists and to protect against industrial and economic espionage. The company has been headquartered in Hankensbüttel, Germany, but will be moving to Maryland, USA soon. | Germany / US | Communications |
| Phantom Photonics | Phantom Photonics designs and builds photonic sensors. Their technology leans on quantum coherence to establish superior noise resilience in the sensor, increasing the operational distance, and adding features of covert functionality and imperviousness to adversarial disabling,. The unique features of their LiDARs make them ideal for defense applications, but also civilian uses such as undersea asset monitoring, anti-collision systems for satellites, and more. The company is located in Waterloo, Canada and was founded in February 2023. | Canada | Sensors |
| Phase Space Computing | Located in Linköping, Sweden, Phase Space Computing is a spinoff company from Linköping University which produces educational tools for quantum information science that can be used at the high school, undergraduate or graduate levels. They provide toolboxes which contain electronic circuit boards that approximate the behavior of quantum gates. These gates are modular and can be connected into quantum circuits. The toolboxes can demonstrate functions such as quantum key distribution, teleportation, superdense coding, the Deutsch-Jozsa algorithm and Shor’s algorithm. | Sweden | Other |
| Phasecraft | Phasecraft is a quantum software company founded by professors from the University College London (UCL) and the University of Bristol. They will be working on a program with UCL, the University of Bristol, and Google on a research program involving quantum modelling and simulation. They are based in London and were founded in February 2018. | UK | Software |
| Photon Queue | Photon Queue is developing efficient quantum memories to expedite the advancement and adoption of quantum communication, computing, and metrology technologies. Their all-optical approach to storing photonic qubits facilitates commercial deployment by offering high performance with practically useful storage times. They are located in Urbana, Illinois and were founded in July 2024. | US | Communications |
| Photonic Inc. | Photonic is a spinoff of the Silicon Development Lab at Simon Fraser University developing quantum hardware based upon photonic and also spin qubit technologies. They are located in Vancouver, Canada and were formed in October 2019. | Canada | Hardware |
| PiDust | PiDust uses available quantum computing hardware to simulate drugs, chemicals, materials and other quantum systems. Their methods are the building blocks for new material design and drug discovery and use quantum computers as an innovative platform to solve unsolved problems. PiDust is located in Patras, Greece and was founded in 2019. | Greece | Software |
| pine.ly | Pine.ly, based in Toronto, Canada and founded in September 2019 is working on a core technology which leverages quantum computing and classical simulations to optimize chemical systems. They are focusing on improving sustainable materials and catalysts by using computational methods to significantly reduce the time spent on trial and error in the lab. Their first target is improving reactions that transform excess carbon dioxide emissions into value-added products. | Canada | Software |
| Planckian | Planckian is designing novel QPU architectures based on superconducting qubits. They leverage a unique platform to solve interdependencies between energy and quantum information processing, targeting operational efficiency. The company was formed in 2022 and is located in Pisa, Italy. | Italy | Hardware |
| planqc | planqc is building quantum computers that store information in individual neutral atoms and controlled by laser pulses which they believe is the fastest way to scale to thousands of qubits. The company was founded by a team of scientists from the Max-Planck-Institute of Quantum Optics and Ludwig-Maximilians-University Munich and is the first startup to emerge from the Munich Quantum Valley. The company was founded in April 2022 and is based in Garching near Munich, Germany. | Germany | Hardware |
| Polaris Quantum Biotech | POLARISqb is working to revolutionize drug design by joining Quantum Computing with AI and Precision Medicine. Their platform will produce up to 100 drug blueprints per year and will compress the lead time for preclinical drug candidates from 5 years to 4 months, enabling real time adaptability to the precision medicine market. They will own an IP portfolio of drug assets to license, sell, or develop internally. The company was formed in December 2019 and is located in Durham, North Carolina. | US | Software |
| Post-Quantum (PQ Solutions) | Post-Quantum (PQ Solutions) offers a variety of information security products and services including quantum secure encryption algorithms. They are based in London and were founded in 2009. | UK | Communications |
| pQCee | pQCee is a deep-tech startup in the quantum cybersecurity space. They are in the business of designing and building post-quantum products and services to strengthen and protect the next generation of computing against quantum attacks. The company was founded in August 2022 and is located in Singapore. | Singapore | Communications |
| PQSecure | PQSecure designs, tests, and builds post-quantum cryptographic solutions for your current devices that are secure against quantum enabled attackers to keep networks safe today and tomorrow. The company was founded in June 2017 and is located in Boca Raton, Florida. | US | Communications |
| PQShield | Founded in 2018 and based in Oxford U.K. as a spinout of the Mathematical Institute at the University of Oxford, PQShield is developing real-world, high performance implementations of post-quantum cryptography algorithms. They are an active participant in NIST’s Post Quantum Cryptography standardization process and they are working with several candidate algorithms that are being evaluated as part of Round 2 selection process. | UK | Communications |
| ProteinQure | ProteinQure is a biotech firm that uses computational R&D tools to perform drug design in silico. They leverage quantum computing, molecular simulations and reinforcement learning to engineer novel therapeutics. They were established in October 2017 and are based in Toronto, Canada. ProteinQure is also an alumni of the Creative Destruction Lab in Toronto. | Canada | Software |
| PsiQuantum | PsiQuantum was formed in June 2016 and based in Palo Alto, California. They are using a photonic approach to manufacture a universal quantum computer at GlobalFoundries a CMOS silicon foundry Their goal is to provide a 1 million physical qubit quantum computer with error correction by the middle of this decade. | US | Hardware |
| Q*Bird | Q*Bird's mission is to provide equipment for the current, and future European quantum internet. Today they build devices for quantum secure networking. Tomorrow they will enable general purpose quantum connectivity. Their unique Quantum Key Distribution (QKD) technology offers the following advantages: multipoint-to-multipoint connectivity; cost-effective scaling; improved security and it is future proof: their devices are designed to be upgradable with the most advanced quantum network technology. Q*Bird, founded in September 2022, is a spinoff of QuTech and is located in Delft, The Netherlands. | Netherlands | Communications |
| Q.ANT | Q.ANT exploits novel quantum effects using light to realize new products in the field of sensing, imaging and computing. They take care of the complete optical process chain, starting from the conversion of electrons to photons, followed by the generation and exploitation of quantum effects and finally the reconversion into electrical signals and data. They recently announced they will enter the field of quantum computing with a goal of developing a fully functional quantum chip within five years. The company is located in Stuttgart, Germany and was founded in July 2018. | Germany | Hardware |
| Q. BPO Consulting | Q.BPO is a consulting and engineering company for quantum computing approaches. They view themselves as the bridge between quantum providers and enterprise end users. They have extensive experience in Business Process Outsourcing & Optimization and believe that quantum computing can be very applicable in these areas. The company was formed in January 2020 and is located in Paris, France. | France | Consulting |
| Q&I | Q&I, based in the UK, provides consulting services and solutions across the full breadth of quantum technology sectors including how to resolve critical quantum information and technology challenges, as well as exploit their opportunities. Their activities range from broad scoping reports to detailed application-specific design studies, and services include quantum readiness assessments and support with due diligence in quantum technologies. | UK | Consulting |
| Q-CTRL | Q-CTRL is an Australian startup led by professor Michael Biercuk from the University of Sydney. They are developing a firmware framework for quantum computers to address the issue of error control. Q-CTRL has recently launched their first software product called Black Opal, a hardware agnostic control software program that works to reduce decoherence and errors at the physical layer. Users who have already signed agreements to use this software include IBM, Bleximo, and others. | Australia | Software |
| Q-Lion | Q-Lion is a quantum computing software company focused on creating realistic fault- tolerant quantum error-correcting codes (FTQECC) to combat decoherence in trapped ions quantum computers. They are working to distribute fault-tolerance QECC for a low number of ions with the aim to show some quantum advantage in the existing quantum processors. Q-Lion is based in Madrid, Spain and was founded in January 2019. | Spain | Software |
| Q4B Technologies | Q4B provides quantum computing strategy services, business consulting and application development across industries. The company was formed in 2020 and is located in London. | UK | Consulting |
| Qabacus | Qabacus (formerly known as Memcus Inc) is an early R&D stage Cybersecurity and Cyberinsurance startup. The company is focusing on development and manufacturing of next generation Quantum Computing and Cryptography technologies as well as design of a complete cyber-security software stack. The company was formed in July 2019 and is located in Cambridge, Massachusetts. | US | Communications |
| qAIntum.ai | qAIntum is building quantum large language models (LLMs) using photonic analog quantum computing. LLMs are confronted with significant challenges, including high energy consumption, costly hardware, and growing technological inequality. The company was founded to address these challenges by leveraging the unique capabilities of quantum computing. By harnessing quantum parallelism, they aim to reduce computational demands and unlock unprecedented insights into language and intelligence. They were founded in April 2024 and are located in Palo Alto, California. | US | Software |
| Qaisec | Qaisec provides state of the art end to end solutions for quantum encryption in banking, telecommunications, entertainment and gambling industry, corporate data security and state data security. They provide complete and seamless integration with existing equipment. The company is also working on Quantum Encrypted Blockchain (QEB) solutions for the banking industry and also various AI solutions. Qaisec was founded in October 2019 and is based in Bankya, Bulgaria | Bulgaria | Communications |
| Qapitan Quantum | Qapitan Quantum provides a Platform that offers edge advantage of Quantum Algorithms in a risk-free API marketplace, where algorithm developers and companies can sell their solutions. Their goal is to bring Quantum Computing to the masses and offer the best of breed algorithms to everyone. The company is headquartered in Barcelona, Spain and was founded in early 2021. | Spain | Software |
| Qasky | Qasky, or more formally called Anhui Qasky Science and Technology Limited Liability Company, was formed in 2016 in Wuhu City, Anhui Province, China to commercialize quantum cryptography research at the Chinese Academy of Sciences. They are offering or plan to offer products and services including the quantum cryptography communication terminal equipment, network switching/routing equipment, core optoelectronic devices and modules, opening experiment system, scientific instruments and network security control and application software, etc., and integrated solutions for quantum information security system. | China | Communications |
| QBee | QBee has has developed a full stack quantum accelerator that can be used to develop quantum algorithms. Those algorithms can be executed on their QBeeSim simulator platform to verify what kinds of solutions the quantum accelerator can be producing. The company was founded in September 2020 and is based in Leuven, Flemish Region, Belgium. | Belgium | Software |
| QbitLogic | QbitLogic is a quantum computing software company with a general focus on AI algorithms for quantum computers. They are located in Atlanta, Georgia. | US | Software |
| QbitSoft | QbitSoft is a French based software company helping Enterprises to faster embrace Quantum Computing revolution. It will provide a single cloud-based platform allowing enterprises to use quantum powered applications to boost their business processes. The company was formed in February 2022 as a subsidiary of The Blockchain Group and is located in Puteaux, a community in the western suburbs of Paris, France. | France | Software |
| Qblox | With a dedicated team of scientists, engineers and developers Qblox is pushing quantum technology to support scientists worldwide with their scalable and low-latency qubit control equipment. They are providers of quantum control stacks that can be integrated with customers’ quantum computers. The stacks combine unlevelled noise performance, low-latency arbitrary control flows and can be scaled up to 100s of qubits. The company is based in the Netherlands and is a 2018 spinoff of leading quantum institute QuTech. | Netherlands | Hardware |
| qBraid | qBraid is working to create and prepare the quantum workforce: making quantum programming easier to learn by making it easier to do. We offer a simple cloud environment to write quantum code, compatible across all quantum hardware, and interoperable with all quantum algorithm development tools. This includes integrated course and tutorial material to streamline the process of learning, building, and deploying quantum-enabled solutions. The company was founded in November 2019 and is located in Chicago, Illinois. | US | Software |
| Qbrain | Qbrain provides a suite of state-of-the-art AI middleware optimzes today's quantum hardware so it can reach its full potential. They are dedicated to helping organizations around the world achieve quantum advantage and unlock the full potential of quantum computing. The company is based in Milan, Italy and was founded in July 2022. | Italy | Software |
| QC Design | QC Design is a quantum computing company that designs error correcting architectures for fault-tolerant quantum computers. Building a fault-tolerant quantum computer requires specific architectures that describe how to assemble imperfect building blocks into scalable and reliable quantum computers. QC Design develops ECC architectures that they will license to quantum hardware companies. They also provide a simulator that allows a user to test various codes. The company is based in Ulm, Germany and was founded in September 2021. | Germany | Other |
| QC Ware | Founded in 2014 and based in Palo Alto, California, QC Ware Corp. develops hardware agnostic enterprise software solutions for quantum computers. QC Ware delivers their capabilities through a cloud-based platform that runs on diverse QC architectures. Their software stack includes plug-and-play function libraries that support optimization, machine learning, and quantum simulations. In July 2017, QC Ware received Series A financing for $6.5 million. | US | Software |
| QC82 | QC82 is developing room temperature photonic chips with on-chip photon number resolving detectors to conquer fault tolerance and open up practical QC applications. The company was started in January 2021 and has headquarters in Wilmington, Delaware with personnel at other locations including Virgina. | US | Hardware |
| QCentroid | QCentroid develops a quantum-as-a-service platform to connect the best quantum startups and companies to the best quantum hardware providers. Industry customers will be able to submit their tough computational problems, quantum developers will be able to submit quantum algorithms for solving those, and QCentroid’s platform will benchmark the solutions. The company was founded in June 2022 and is located in Madrid, Spain. | Spain | Infrastructure |
| QDaria | QDaria is dedicated to harnessing the transformative power of quantum computing and advanced AI to create secure, efficient, and innovative solutions that drive progress across industries and enhance lives globally. They will leverage their expertise in quantum computing and advanced AI to deliver cutting-edge solutions across multiple domains. The company was founded in August 2023 and is based in Oslo, Norway. | Norway | Multiple |
| QDM.IO | QDM.IO provides a Quantum Diamond Microscope product that senses magnetic fields to nanotesla levels based upon a quantum-grade diamond sensor doped with an ensemble of nitrogen vacancy defects. The company is located in College Park, Maryland and was founded in June of 2021. | US | Sensors |
| QEDma Quantum Computing | QEDma Quantum Computing is a quantum software company formed by Professor Dorit Aharonov of the Hebrew University, Professor Nathaniel Lindner of the Technion, and Dr. Asif Sinai. The company is developing algorithms and software tools that will be used by the world's quantum computer companies to help them solve the critical problems to reach a state where these computers can be used to solve application problems. The company was founded in July 2020 and is located in Tel Aviv, Israel. | Israel | Software |
| QEYnet | Located in the Toronto, Canada area and incorporated in 2017, QEYnet is working to build the world’s first global quantum key distribution (QKD) network using satellite technology to overcome the distance limitations of fiber optic cables. The company was founded by a group of aerospace engineers who have built their careers designing small, low-cost, but highly-capable spacecraft. | Canada | Communications |
| Qike Quantum | Guokaike Quantum Technology Co., Ltd., referred to as Qike Quantum, with registered trademark QUDOOR, focuses on the manufacturing of quantum communication equipment and the full-stack development of quantum computers. With rich product experience, it is a high-tech enterprise with independent core technology and comprehensive product development capabilities in the fields of quantum communication, quantum computing, and quantum sensing, and has undertaken a number of national and industry standard formulation work. The company was founded in 2018 and is located in Beijing. | China | Multiple |
| Qilimanjaro Quantum Tech | Qilimanjaro Quantum Tech is a deep-tech startup that addresses real-life quantum-ready problems. Qilimanjaro’s integrated hardware & software team co-designs high quality superconducting qubit-based app-specific quantum computers. It has already commissioned its first client gate-based system. In parallel, it is targeting next-generation analog quantum computers with easy-to-use cloud access to effectively address complex optimization and ML problems. It also provides services for businesses to become quantum-ready, particularly on quantum algorithms, quantum simulation and classical/quantum computer approaches. It has closed significant customer contracts since its first year of operation and has become a key contributor to the European Commission’s AVaQus H2020 project on coherent quantum annealing. Qilimanjaro is a 2019 spin-off from the Barcelona Supercomputer Center (BSC), the University of Barcelona (UB) and the Institute of High-Energy Physics (IFAE). Their headquarters are in Barcelona, Spain. | Spain | Hardware |
| Qindom | Qindom Inc., based in Toronto, Canada, was founded in January 2018 as a Quantum Intelligence (QI) research and solution service provider. They are dedicated to reconstructing AI with quantum computing technologies in research and applications. Qindom’s open platform and intellectual properties are designed for applying quantum computing to revolutionize fundamental algorithms and models in AI and realizing quantum intelligence in real-world industry practices. Qindom has secured seed funding of $2 million from undisclosed investors. | Canada | Software |
| Qkrishi | Qkrishi provides quantum models, algorithms and kernels to their clients in any industry. They have also partnered with the Birla Institute of Management Technology to start a new first-of-a-kind course that integrates business and technical aspects of Quantum Computing. This course, called Quantum Computing Certification Course for Managers, will equip industry leaders to chart out a roadmap for quantum adoption within their enterprises. | India/U.S. | Consulting |
| Qmill | QMill is a Finnish quantum computing company founded in 2024, dedicated to developing quantum algorithms that provide near-term, practical benefits for industrial applications. By leveraging near future quantum hardware, QMill aims to solve complex optimization problems and deliver significant value across various sectors. The company is headquartered in Espoo, Finland and was founded in March 2024. | Finland | Software |
| QMware | QMware provides a hybrid quantum cloud platform that bridges the gap into the quantum age. The QMware Cloud merges HPC, simulated and native quantum hardware to provide next-level computing performance. The platform consists of classical and graphical processing units (CPU and GPU) with virtual quantum processors. These virtual quantum processors can include both classical simulators and native quantum registers. The company was founded in September 2020 and is headquartered in St. Gallen, Switzerland with additional offices in Munich and Vienna. | Switzerland | Software |
| Qnami | Founded in 2016 and located in Basel, Switzerland, Qnami designs and produces quantum solutions for high precision sensing and imaging applications. They offer B2C microscopy solutions for device inspection and failure analysis at the nanoscale. In addition, they support companies with a quantum foundry for the design and production of ultra sensitive sensors across several areas including semiconductor, medical imaging and early-stage medical diagnostics. | Switzerland | Hardware |
| QNu Labs | QNu Labs provides quantum cryptography, quantum encryption, and quantum communication products and solutions. Their patented flagship products are developed by the in-house team of quantum researchers, experts and specialists. QNu Labs was founded and incubated in 2016 at IIT, Madras Research Park. Their headquarters is in Bengaluru, Karnataka, India. | India | Communications |
| Qolab | Qolab is quantum hardware startup working to improve qubit coherence using their deep understanding of the underlying physics and a partnership with Applied Materials to develop proprietary fabrication processes for building high quality qubits. The founders including Alan Ho and John Martinis, formerly of Google Quantum AI, and Professor Robert McDermott of the University of Wisconsin - Madison. The company was initially formed in 2022 and will have a development lab in Madison, Wisconsin. | US | Hardware |
| Qoro Quantum | Qoro Quantum is building network software for distributed quantum computers. They are developing the networking infrastructure required to process and distribute quantum algorithms across multiple quantum processors. The company is located in London, England and was incorporated in July 2024. | UK | Software |
| QPerfect | QPerfect aims to accelerate the quantum computing revolution by developing tools and technology building blocks to support QC developers in their daily work and push the performance of their technologies. These tools include a large scale quantum simulator, a hardware accurate virtual quantum computer, and hardware accurate quantum gate sets. The company was founded in April 2023 and is located in Strasbourg, France. | France | Software |
| QphoX | QphoX is building what they call the world's first quantum modem device, connecting quantum computers across a quantum network. They are developing a quantum transducer based on coupling microwave and optical photons through a mechanical intermediary resonator. The company was formed in April 2021 using technology from TU Delft and the company is located in Delft, The Netherlands. | Netherlands | Communications |
| QpiAI | QpiAI offers PaaS (Platform as a Service) and QpiAI ASGP (AI System Generating Processor, which is a hybrid classical, quantum computer) to enable not only highest data to insight efficiency, but to also generate new usable data. The goal of these products is to convert data into intelligence and provide more intelligent information than never before. The company is located in Bengaluru, India and Milpitas, California and was founded in November 2019. | India | Multiple |
| QPlayLearn | QPlayLearn uses innovative interactive tools to make the learning process more effective and entertaining, and accessible at different levels, without sacrificing scientific correctness. They offer tailor-made content for different target groups and strongly believe that playfulness holds an essential role. Fun and interactivity increase the efficacy of the learning process and make concepts less intimidating. The company was formed in December 2020 and is located in Turku, Finland | Finland | Education |
| Qpurpose | Qpurpose works with state-of-the-art quantum computing platforms to help their clients find better and faster solutions to their hardest computational problems. They develop quantum algorithms and quantum software for practical use cases in all businesses. The company is a spin-off from the Centre for Quantum Mathematics (QM) at the University of Southern Denmark and is located in Odense, Denmark and was started in 2022. | Denmark | Software |
| Qrate Quantum Communications | Qrate Quantum Communications, based in Skolkovo in the Moscow Region was formed in 2018. Their team is working on quantum cryptography product development. Current products offered include QKD systems, single photon detectors, and quantum random number generators (QRNG). The company has raised Series C funding. | Russia | Communications |
| Qrithm | Qrithm develops novel quantum algorithms with applications to machine learning, materials science, cryptography and high frequency trading. There were founded in 2018 and based in Pasadena, California. | US | Software |
| Qruise | Qruise provides algorithms including optimizers, simulators, machine learning tools and other software components designed to accelerate the development of quantum technology and to improve its application. Their first offerings address the growing pains of controlling current generation noisy quantum computers (NISQ devices) and provide improvements in operational fidelities through the use of ML & Quantum Optimal Control. The company was founded in December 2021 and has headquarters in Saarbrucken, Germany. | Germany | Software |
| Qrypt | Qrypt, headquartered in New York City, was officially formed at the beginning of 2018 but had been in the works for many years prior. With high-level leadership expertise from the intelligence community, their hardware and software engineers are developing a cryptographic solution based on high speed quantum random number generation powered by multiple entropy sources exclusively licensed from national laboratories like Oak Ridge National Lab and others. They combine quantum random key generation with their own information theoretic secure algorithm to implement post quantum secure cryptography for use by Fortune 500, critical infrastructure providers and any other entities that needs to keep information secure forever. Their technology stack will also include additional security protocol layers such as AES, the future NIST PQC selected algorithms and others. Qrypt is an investor in Barcelona-based Quside, which is focused on developing high quality and high speed quantum random number generators. | US | Communications |
| QSIMPLUS | QSIMPLUS provides a product called QSIMpro which is a software simulator for cryptographic communication. This product cuts time and costs by removing the need for typically necessary hardware. It allows quantum communication non-experts to implement and verify various QC systems through drag & drop methods of blocks that behave similar to hardware elements. By providing easy access to quantum communication technology it lowers barriers to entry so even non-experts can contribute to the creation of a quantum ecosystem. QSIMPLUS was started in April 2021 and is located in Seoul, South Korea. | South Korea | Communication |
| QSimulate | QSimulate is a developer of tools intended for quantum molecular simulations in the cloud. The company offers a cloud-based time-to-solution simulation platform for chemical and pharmaceutical industries, enabling companies to accelerate their computational research and development. They have collaborations with Amgen, the Google AI Quantum Lab, and the Amazon Quantum Solutions Lab. The company is located in Boston, Massachusetts and was founded in 2018. | US | Software |
| Qu & Co | Qu&Co, based in Amsterdam, is a developer of quantum computational algorithms and software that empowers its corporate clients to solve valuable problems in the fields of chemistry, materials science, fluid dynamics and computational finance with unprecedented accuracy and speed. Its SaaS products include unique and patented quantum algorithms distributed as a backend integration to leading conventional software packages. They recently merged with Pasqal and will work to integrate their rich quantum algorithm portfolio with Pasqal’s advanced quantum hardware. | Netherlands | Software |
| Quacoon | Quacoon is a cross domain Quantum Computing and Artificial Intelligence innovator, working on industry relevant software solutions. Their mission is to accelerate adoption and execution of quantum computing and artificial intelligence in as many domains as possible. They were founded in January 2020 and are located in Lewis Center, Ohio. | US | Consulting |
| Quandela | Founded in 2017 and based near Paris, France, Quandela develops and commercializes high performance, compact devices for quantum optics applications. The core technology consists of semiconductor based photonic qubit generators (state-of-the-art deterministic single-photon sources) implemented to scale-up optical quantum computing protocols with a large number of photons. In addition to the hardware, Quandela has developed an open source development toolkit for programming and simulating photonic quantum computers. Leveraging this technology Quandela is also developing a full-stack NISQ computing platform which they intend to make available online in 2022. | France | Hardware |
| Quanfluence | Quanfluence produces a Time-Multiplexed Coherent Ising Machine, a powerful hardware solution designed to tackle complex optimization problems formulated as Quadratic Unconstrained Binary Optimization (QUBO) problems. By combining the best of both worlds - electronic multiply and accumulate and photonic non-linearities - the machine can efficiently explore a vast solution space, enabling it to handle problems with up to 100,000 variables. The company is located in Bengaluru, India and was formed in November 2021. | India | Hardware |
| Quanmatic | Quanmatic offers a product ecosystem with their software to enable highly efficient and high quality quantum technology based solutions. Their products provide algorithms for quantum computing efficiency and precision, practical software implementation of algorithms, and software-based pre- and post-processing methods for quantum computational techniques. The company is located in Tokyo, Japan and was started in 2022. | Japan | Software |
| Quanscient | Quanscient is building a simulation that combines world-class simulation algorithms and quantum computing operating in a scalable, modern cloud environment. They have recently launched Quanscient.allsolve which they say is the fastest multiphysics simulator on the market and accessible via the internet with any browser. The company is located in Tampere, Finland and was founded in November 2021. | Finland | Software |
| Quanta-ly | Quanta-ly is the first startup with a mission to prepare the Libyan industries for the products & services offered by the second quantum revolution in various forms, such as training & consulting and advanced secure communications. They will mainly focus on areas such as, telecommunications, banking & financial technology, and government & defense. Their commercial goal is to become one amongst the first quantum adopters and quantum-solutions enablers in the in the Middle East/North Africa region. They will do everything in their power to help build the required ecosystem needed across Africa, and the Middle East/North Africa region to better change how the quantum players deal with their communities. The company is located in Tripoli, LIbya and was founded in March 2020. | Libya | Multiple |
| Quantagonia | Quantagonia helps companies to benefit from quantum computing today. It leverages quantum algorithms on today's computers while future-proofing development to take full advantage of quantum computers without having to rewrite models. The company has expertise in quantum computing, simulation, optimization, artificial Intelligence, quantum-inspired algorithms, finance, logistics, mathematical programming, Python, and developing quantum ready software. It was founded in November 2021 and is headquartered in Frankfurt am Main, Germany. | Germany | Software |
| Quantala | Quantala is a knowledge company for quantum computing, founded by John Martinis. Its mission is to help build a fully functional quantum computer by identifying and solving technical roadblocks. The company is located in Santa Barbara, California and was formed in late 2020. | US | Consulting |
| QuantaMap | QuantaMap develops tools for metrology and defect inspection for quantum chips and other quantum hardware. They build a microscope, based on IP-protected SQUID-on-tip technology, that will help quantum hardware developers locate which components in their design is failing and improve their production processes. The company was founded in November 2022 and is located in Leiden, The Netherlands. | Netherlands | Hardware |
| Quantastica | Founded in February 2019 and located in Tallinn, Estonia and Subotica, Serbia, Quantastica provides software tools and solutions to help people utilize hybrid quantum-classical computing techniques. One of their key products is the Quantum Programming Studio, a web based graphical user interface for designing quantum algorithms and executing on simulators or real quantum computers. The have also released software called Forest Backend for Qiskit that allow someone to run Qiskit programs on Rigetti simulators and quantum computers by changing only two lines of code. | Estonia | Software |
| QuantCAD | QuantCAD provides noise simulation software which simulates noise on a microscopic scale, provides quantitatively accurate calculations and simulations of nanoscale quantum-coherent phenomena for both optoelectronic devices (CADtronics) and quantum sensors (qNoise) in real-world environments. The company was founded in 2009 in Iowa City, Iowa, but is now located in Chicago, Illinois to participate in the Duality Quantum Accelerator program. | US | Software |
| Quanterro Labs | Quanterro is an association of researchers and entrepreneurs working in the development of quantum information and security. They address the global market need to focus upon middleware and software development for emerging quantum hardware from providers such as D-Wave, Google, IBM and others. The company also provides hosting, academic and consulting services in multiple industries such as cybersecurity, defense, public sector technology, automotive, healthcare, manufacturing and education. They were formed in January 2019 and based in Abu Dhabi, UAE. | United Arab Emirates | Software |
| QuantFi | QuantFi is a French-based start-up research firm formed in 2019 that specializes in creating quantum computer algorithms for the financial services industry. They are engaged in academic research in coordination with various public bodies and have a long term strategy to utilize quantum computer technology to perform financial portfolio management. Their employees have expertise in finance, portfolio asset management, valuation, research, investment analysis, mortgage-backed securities, quantum computing, computer science, mathematics and physics. | France | Software |
| QuantGates | QuantGates is a quantum computing software company providing quantum solutions to computational intensive problems utilizing both classical and quantum computational paradigms. Their first product is called Wolfgates which combines the state-of-the-art algorithms and knowledge to simplify quantum computations. QuantGates has provided practical quantum computing training services to those from banking and professional services sectors. The company was formed in 2020 and is located in London, UK. | UK | Software |
| Quantica Computacao | Quantica Computacao develops tools in the software arena to make use of future quantum technology. Their products include a quantum virtual simulator, proof-of-concept quantum specific machine learning and AI algorithms, and state of the art, client specific algorithms. The company was founded in 2018 and is located in Chennai, India | India | Software |
| QuantiCor Security | QuantiCor Security provides post-quantum cryptographic solutions for Internet-of-Things (IOT) and blockchain applications. They recently received an Accenture Innovation Award for their security solutions. QuantiCor is located in Darmstadt, Germany and key personnel came from TU Darmstadt. The company was founded in June 2017. | Germany | Communications |
| QUANTier | QUANTier is a Hong University of Science and Technology (HKUST) spin-off that provides a neutral-atom quantum computer for educational institutions and industrial users through cloud services. The company is located in Hong Kong, China and was formed in 2022, | Hong Kong, China | Hardware |
| Quantika | Quantika provides consulting services to navigate the emerging market of quantum technologies. Quantika has personnel based in the UK, France, and Japan and works with investors, start-ups, researchers, and corporate innovators with technology transfer and successful start-up creation. | Japan | Consulting |
| Quantinuum | Quantinuum is a company that was formed through the spinoff of the Honeywell Quantum Solutions group and Cambridge Quantum Computing. The hardware portion of the company originating from the Honeywell side is developing ion trap based quantum computers and the software portion of the company originating from Cambridge Quantum provides a quantum programming platform named TKET, a quantum cybersecurity product called Quantum Origin and several different algorithmic libraries for quantum chemistry, quantum machine learning, quantum natural language processing and others. The company maintains dual headquarters in Broomfield, Colorado and Cambridge, UK. | US and UK | Multiple |
| Quantistry | Quantistry develops next level of chemical simulations, powered by quantum simulations and artificial intelligence. Their cloud-based chemical simulation software has an intuitive user interface and the highest security standards. The algorithms range from Density Functional Theory (DFT) to Post-Hartree-Fock over to classical force fields and advanced machine learning prediction models. Currently, their algorithms run on classical computing architectures but they expect to start utilizing quantum computers in the near future. The company is located in Berlin, Germany and was founded in August 2018. | Germany | Software |
| Quantized Technologies Inc. (QTI) | Quantized Technologies Inc. considers a practical and scalable solution that is based on advanced Quantum Key Distribution protocols to be the next generation of commercial quantum-secure solution. Advantages of such a solution include superior security, cost-efficiency, scalability, and streamlined validation and certification. As an initial offering in the QTICrypt™ product family, they are building QuSera™, a quantum-secure hardware solution that implements next-generation quantum cryptography. Their solution secures communication networks against even the most sophisticated attacks, and they are committed to making this cutting-edge technology accessible to a wide range of users. The company is located in Calgary, Canada and was formed in May 2021. | Canada | Communications |
| QuantLR | See HEQA Security. | Israel | Communications |
| Quantopticon | Quantopticon is an early-stage company that produces unique modelling software for designing and optimizing quantum components, the building blocks of emerging quantum technologies, such as quantum computers and quantum communication channels. They were founded in 2017 and are located in London, England. | UK | Software |
| QuantrolOx | QuantrolOx is building automated machine learning based control software for quantum technologies to tune, stabilize, and optimize qubits. QuantrolOx’s software is technology agnostic and applicable to all types of quantum technologies. However, the company is initially targeting solid-state qubits where the team has already demonstrated substantial practical benefits. The company is headquartered in Oxford, UK and was founded in late 2021. | UK | Software |
| Quantropi | Quantropi has developed a software-based encoding engine which leverages principles of quantum mechanics to protect data-in-transit. The solution is lightweight, low-latency, and quantum secure, and has been implemented into a key distribution demonstrator. The goal is to develop an alternative solution to photonic quantum key distribution that doesn’t require new hardware with a specific near-term focus on Internet of Things (IoT) applications. Quantropi was founded in January 2018 and is located in Ottawa, Canada. | Canada | Communications |
| Quantuloop | Quantuloop is developing advanced solutions to prepare the industry for the quantum future. They provide quantum simulators for use in the AWS Cloud, on-premise, HPC, and other environments. They also have their own programming platform called Ket. The company is located in Houston, Texas and Salvador, Brazil and was started in March of 2021. | US / Brazil | Software |
| Quantum AI Global | Quantum AI Global was founded by a team of experts in Quantum computing, Al and related fields, The company is committed to delivering innovative solutions that meet the unique needs of their clients. Their team combines deep expertise in quantum and AI technologies with a passion for solving complex problems and delivering results. Their team of experts combines deep expertise in quantum computing and artificial intelligence to deliver customized solutions for their clients. The company is located in Edison, New Jersey and also Hyderabad, India and was founded in September 2021. | US/India | Software |
| Quantum Art | Quantum Art is a hardware startup currently in stealth mode working on full-stack quantum computing using an ion trap modality. The company is based in Ness Ziona, Israel and was founded in March 2022. | Israel | Hardware |
| QuantumAstra | QuantumAstra is developing a portable high-sensitivity quantum sensor and a platform for quantum AR/VR simulations. The company was founded in September 2023 and located in Frisco, Texas. | US | Sensors |
| Quantum Base | Quantum Base invents, designs, and develops mass producible quantum security solutions and devices at the nanoscale. These are based on quantum mechanics rather than mathematical complexity, so ensuring 100% secure digital information. They provide optical and electronic PUF (Physically Unclonable Functions) devices which cannot be cloned, copied, or simulated which are used for security tags and quantum signature applications. They also provide a nanoscale quantum random number generator (Q-RAND) that can be integrated into existing and new microelectronic systems. The company was founded in 2014 and they are located in Lancaster, U.K. | UK | Communications |
| Quantum Benchmark Inc. | Quantum Benchmark Inc. is headquartered in Waterloo, Ontario, Canada, and spun out of the Institute for Quantum Computing and the University of Waterloo in February 2017. They offer a range of products and services to serve both quantum computing users and vendors, across all quantum computing hardware architectures. Their flagship product is the True-Q software suite, an industry-standard tool for optimizing large-scale quantum hardware performance, which extends and validates the run-time capabilities for different user applications through the company’s world-leading error diagnostic and error mitigation technology. | Canada | Software |
| Quantum Blockchains | Quantum Blockchains Inc. aims to create a functioning blockchain technology capable of resisting the currently emerging threats from quantum computers. But instead of using post-quantum cryptography algorithms to protect the data, they will be using quantum key distribution (QKD). The company is based in Puławy, Poland and was formed in 2020. | Poland | Multiple |
| Quantum Bridge Technologies | Quantum Bridge Technologies (QBT) is working to build the quantum Internet from both conventional and quantum technologies and tackling cutting-edge engineering and theoretical problems related to the generation and manipulation of quantum entanglement. In parallel to the development of Quantum Repeaters, QBT is developing core proprietary technologies to make current networks quantum resilient. The company is located in Toronto, Canada and was founded in November 2019. | Canada | Communications |
| Quantum Brilliance | Quantum Brilliance is developing a quantum computing platform based on atomic-scale defects in diamond (nitrogen-vacancy centers) that will run at room temperature. They are a spinout of the diamond quantum program at Australian National University. Quantum Brilliance is based in Canberra, Australia and was founded in October 2019. | Australia | Hardware |
| QuantumCai | QuantumCai is an early-stage quantum communications startup-up. The company was founded in February 2020 and is located in Norfolk, Virginia. | US | Communications |
| Quantum Circuits, Inc. | Quantum Circuits, Inc. (QCI) was founded by three scientists from the Department of Applied Physics at Yale University with expertise in quantum devices and quantum information processing using solid state devices. QCI’s long-term goal is to develop, manufacture, and sell the first practical and useful quantum computers based on superconducting devices. QCI will also commercialize components, devices, and software that will accelerate basic research and enable the scaling of quantum computing. QCI was formed in late 2015 and is based in Connecticut. | US | Hardware |
| Quantum Computing & AI Research (QCAR) | Located in Hsinchu, Taiwan and founded in November 2017, Quantum Computing & AI Research (QCAR) is the first quantum computation related research private company in Taiwan. Currently they are focusing on modeling new topological qubits and also serve as a consultant for all potential startup companies, not only in Taiwan but around the globe. Their web site is presently in Chinese, but you can use Google Translate to translate it. An English version of the web site is under construction. | Taiwan | Consulting |
| Quantum Corridor | Quantum Corridor Inc. is a cutting edge coherent optical network technology company that speeds business adoption of quantum computing, sensing and communications discoveries, enabling a Midwest ecosystem of public and private partnerships, world-class companies, researchers and investors. The company was founded in January 2023 and is headquartered in Indianapolis, Indiana with operations in the Chicago and Northwest Indiana region. | US | Communications |
| QuantumDiamonds | QuantumDiamonds provides quantum sensors based upon solid-state qubits embedded within diamonds known as the nitrogen-vacancy (NV) center. These devices operate at room temperature and offer unprecedented sensitivity for magnetic fields, temperature and pressure for industrial applications. The company was formed in June 2022 and is located in Munich, Germany. | Germany | Sensors |
| Quantum Diamond Technology Inc. | Quantum Diamond Technology Inc. (QDTI) uses NV diamond based magnetic imaging quantum sensing technology to deliver simple, rapid and broadly accessible diagnostics to accelerate biomedical research, drug discovery & development and diagnostic testing. The company is based in Waltham, Massachusetts and was established in 2015. | US | Sensors |
| Quantum Dice | Quantum Dice is a technology spin-out from the University of Oxford, commercializing a self-certifying random number generator (QRNG) device which generates unbiased, true random numbers. The QRNG will be an integrated on-chip device which generates cryptographically secure random numbers allowing for use in a range of commercial applications. They were founded in July 2019 and headquartered in Oxford, England. | UK | Communications |
| Quantum Factory | Quantum Factory GmbH is a startup founded in 2018 in Munich, Germany to build ion-trap based quantum computers and sell computational power as a service. Quantum Factory’s unique advantage is a proprietary ion trap drive that simplifies the joining of ion trap modules and the establishment of junctions in an ion trap. Quantum Factory plans to build quantum computers modularized to the extreme and readily scale them to large numbers of physical qubits while providing high quantum gate fidelity. | Germany | Hardware |
| QuantumFD | QuantumFD is developing software that takes advantage of the computational power of a quantum computer. Their first project is to develop QADE - which stands for Quantum Algorithms Development. Its capabilities are to run numerical simulations and solve aerodynamic problems using computations calculated on quantum machines. The company is based in Munich, Germany and was founded in 2016. | Germany | Software |
| Quantum Flytrap | Quantum Flytrap is a quantum software & design company developing interfaces for quantum computing and quantum cryptography, enabling easy use of quantum tech across disciplines and applications. They aim to build the standards for interaction with quantum systems. They have a real time browser based simulator that can perform simulations of a few entangled particles and provide an accessible way to prototype experiments or teach quantum. Their first full product, the Quantum Lab, is already used at Stanford University and is being incorporated into interactive teaching materials at the University of Oxford. The company was founded in early 2020 and they are located in Warsaw, Poland | Poland | Software |
| Quantum Futures | Quantum Futures is a consulting firm that specializes in recruiting quantum talent for its clients. They have pledged to build awareness of quantum computing through consultations, inclusive community connections, and establishing close mutually beneficial partnerships. The company was formed in January 2021 and is headquartered in London. | UK | Consulting |
| Quantum Generative Materials | Quantum Generative Materials, LLC is a company still in stealth mode, but has a primary goal of commercializing new quantum computing technologies to accelerate material science discovery and development. The company is partially owned by Comstock Mining and was founded in May 2021. They are based in Cheyenne, Wyoming. | US | Software |
| Quantum Impenetrable | Formed in April 2018 and based in Scotland, Quantum Impenetrable has developed a cryptographic hardware security module (HSM) inspired by genetics and quantum physics and combined with a quantum / true random number generator that provides encryption that the company says is unbreakable by either classical or quantum computers. | UK | Communications |
| Quantum Intelligence | Quantum Intelligence merges quantum and AI technologies to innovate within the biopharmaceutical industry. Their QUEST platform uses algorithms that analyze how electronic charges are distributed in molecules to predict how a drug will behave in the body, evaluating its effectiveness and safety. QUEST makes it possible to automatically explore optimization of new drug candidates, and even predict chemical properties such as Permeability, Solubility, Stability without wet experiments. The company is located in Seoul, South Korea and was founded in June 2020. | South Korea | Software |
| Quantum Machines | Founded in March 2018 in Tel Aviv, Israel, by three physicists from the Weizmann Institute of Science, Quantum Machines is developing operation and control systems for quantum computers – hardware and software that allow to realize the potential of quantum computing. Their technology is based upon integration of a wide range of fields, including digital signal processing, algorithms, FPGA, chip design, RF/microwave engineering, programming, optimization, machine learning and quantum physics. | Israel | Multiple |
| Quantum Mads | Quantum Mads aims to dissect both theoretically and practically the intrinsic dynamics of complex financial systems, creating solutions that will disrupt the current state of the art modeling techniques and allowing to have unique insights to add disruptive value to the client’s solutions. The company is located in Vitoria-Gasteiz, Spain and was founded in May 2020. | Spain | Software |
| Quantum Microwave | Quantum Microwave develops and manufactures cryogenic microwave components for quantum computers. Their products include cryogenic bias tees, cryo diplexers, cryo filters, cryo attenuators, cryo terminations, cryo image reject mixers, and cryo directional couplers. Quantum Microwave is based in Cohasset, Masachusetts and was formed in 2016. | US | Hardware |
| Quantum Motion Technologies | Quantum Motion Technologies was founded on the research undertaken by Professor Simon Benjamin (Department of Materials, Oxford) and Professor John Morton (Department of Engineering Science, Oxford). The company was formed in June 2017 and located in Oxford and London, United Kingdom. The company aims to develop quantum computer architectures based on silicon technology, leveraging CMOS processing to achieve high-density qubits which can scale up to large numbers and tackle practical quantum computing problems. They received seed funding from the Parkwalk Opportunities Fund in November 2017. | UK | Hardware |
| Quantum Network Technologies (Qunett) | Quantum Network Technologies (Qunett) is building the fundamental building blocks of the quantum internet – fully packaged, mass producible, cost-effective quantum repeaters. Their quantum repeaters allow qubits to be transported worldwide at ultra-fast rates using the existing telecom infrastructure. Their technology is based upon nanophotonics with diamond color centers. The company is located in Boston, Massachusetts and was founded in June 2022. | US | Communications |
| Quantum Phi | Quantum Phi is a consulting, analytical and research company in Prague, the Czech Republic, that focusses on quantum technologies, knowledge of their principles, usage and the quantum technologies industry itself. In addition to civilian applications of quantum technologies, they specialize in the use of quantum technologies for the space, security and military industries. | Czech Republic | Consulting |
| Quantum Quants | Quantum Quants helps companies and institutions to get insights on quantum computing and its applications to real world problems. They offer courses and workshops on quantum mechanics, quantum computing, applications to finance, data science, material research and development and prototype implementation of algorithms and models in IBM Qiskit framework, Google Tensorflow Quantum, AWS Amazon Braket and D-Wave Leap2. The company is located in Rotterdam, Netherlands and was founded in October 2020. | Netherlands | Consulting |
| Quantum Realm Computing | Quantum Realm Computing provides software development and consulting services to organizations that want to find ways to explore the potential benefits of quantum technology. The company is located in San Antonio, Texas and was founded in November 2021. | US | Consulting |
| Quantum Research Sciences | Quantum Research Sciences (QRS) is a technology company focused on the discovery, development and delivery of practical quantum software. QRS created the DOD’s first operational quantum software and is working toward new quantum software applications every day. The company was started in 2022 as an affiliate company of the Purdue Quantum Science and Engineering Institute and is located in Lafayette, Indiana. | US | Software |
| Quantum Rings | Quantum Rings is making quantum computing more accessible by offering tools for developers, including an advanced quantum simulator for quantum circuits. This powerful simulator tool can execute quantum circuits of unparalleled scale and complexity on existing classical hardware. The company was formed in September 2023 and is located in Broomfield, Colorado. | US | Software |
| Quantum Signals | Quantum Signals is on a mission to revolutionize finance by bringing cutting-edge AI technology to the forefront. Their solution is designed to assist traders with large order execution, leveraging the latest advancements in AI. By integrating insights from quantum computing, they are enhancing AI pipelines, setting the stage for future innovations that include quantum computing solutions. The company has locations in San Francisco, California and Paris, France. They were founded in June 2024. | US and France | Software |
| Quantum Source Labs | Quantum Source Labs is a spinout from the Weizmann Institute of Science that is working to enable a commercially viable photonic quantum computer with millions of qubits. The company was formed in October 2021 and is located in Rehovot, Israel. | Israel | Hardware |
| Quantum-South | Quantum-South works with complex, optimization problems for cargo by leveraging quantum computing software. Their goal is to achieve better results than current conventional solutions and help companies to improve revenues and reduce costs. They also work in financial problems where a quantum advantage can provide better solutions. The company is based in Montevideo, Uruguay and was founded in November, 2019. | Uruguay | Software |
| Quantum Space Systems (qssys) | Quantum Space Systems (qssys) provides consulting, research, and development services in the cutting-edge field of quantum key distribution (QKD) and the necessary components. Their team of experts is equipped with the latest knowledge and expertise in the field, enabling them to provide comprehensive solutions that meet their clients’ needs. The company is based in Munich, Germany and was founded in November 2021. | Germany | Communication |
| Quantum Technology Foundation (Thailand) | Quantum Technology Foundation (Thailand) (QTFT) is an independent information and knowledge provider. They partner with top-tier STEM professionals, media and business leaders to tackle industry biggest challenges, to bring positive change to the society and to prepare them for the age of quantum technologies. The company was formed in April 2020 and is located in Bangkok, Thailand. | Thailand | Consulting |
| Quantum Thought | Founded in 2019 and located in Tiburon, California, Quantum Thought is a strategic consulting firm focused on quantum computing for the enterprise. Their team includes quantum computing experts combined with AI and cybersecurity leaders in order to help companies ready themselves for a quantum computing future. | US | Communications |
| Quantum Transistors | Quantum Transistors is building a solid-state quantum processor based on a combination of advanced solid-state qubits and state-of-the-art photonics to achieve best-of-breed fidelity and scale. The company was founded in November 2022 and is located in Haifa, Israel. | Israel | Hardware |
| Quantum Trilogy | Quantum Trilogy was founded in 2016 and is located in New York City. It leverages the work carried out since 1991 by Swiss researchers on the correlation between quantum physics and cybersecurity. The company has been developing a new generation technology using quantum physics to secure its corporate and public clients’ communications. They believe that the absolute protection method to secure communications and data as well as key infrastructure will come from Quantum Key Distribution, which provides unmatched security, regardless of the operating speed of traditional and quantum computers, or the effectiveness of decryption algorithms. | US | Communications |
| Quantum Xchange | Quantum Xchange is offering the first commercial quantum-secured networks in the United States utilizing QKD (Quantum Key Distribution) technology with a service they call Phio. They are partnering with communications infrastructure Zayo Group to use dark fiber that Zayo has available, ID Quantique for quantum key distribution (QKD) hardware and the research institute Battelle for trusted node hardware. Quantum Xchange recently announced their first installation which connects the Wall Street area of New York City with the back office operations of various financial firms in New Jersey. Quantum Xchange was founded in 2016 and is based in Bethesda, Maryland. | US | Communications |
| QuantumCTek | Located in Heifei City, China, QuantumCTek is the first provide in China of multi-protocol network security products and services based upon quantum technology. The company produces state-of-the-art quantum communication systems and opto-electronic units with the commercial applications for the financial industry, government organizations and other enterprises, as well as the research applications for the scientific societies. Products that they offer include quantum encryption, quantum gateways and optical switch products. The company was founded by the Chinese leading quantum physics research group from Hefei National Laboratory for Physical Science at Micro-scale (HFNL) and University of Science and Technology of China (USTC). | China | Communications |
| QuantumDiamonds | QuantumDiamonds has developed atom-sized quantum sensors in diamonds with unprecedented sensitivities for magnetic fields, temperature and pressure, functioning under the hardest conditions. The company is located in Munich, Germany and was founded in June 2022. | Germany | Sensors |
| Quantumize | Quantumize develops cutting-edge Post-Quantum Cryptographic algorithms to safeguard against the imminent wave of cyber threats posed by quantum computers. Their mission is to harness the power of the four NIST-approved algorithms to fortify data and communication security in this quantum era. The company was formed in March 2023 and is located in New York City. | US | Communications |
| QuantumNet | QuantumNet focuses on software issues related to Quantum Computing. The company aims to develop skills and solutions that exploit the infinite possibilities of Quantum Computing, thanks to the collaboration with professors and researchers of the University of Naples Federico II. The main advantage of this approach is the resolution of those highly complex problems that today require enormous time and technical resources to be addressed, such as those related to Cybersecurity, Big Data, and Artificial Intelligence. QuantumNet is based in Naples, Italy and was formed in July 2021. | Italy | Software |
| QuantumNova | QuantumNova Ltd is a technology start-up focusing on developing quantum computing solutions for business. Their teams have a wide range of skills and experience from initial analysis through design, build and support of applications. They can examine a business and identify the areas that can be improved with the quantum computing technology. The company is based in Hong Kong and was founded in February 2023. | Hong Kong | Consulting |
| QuantumPrime | QuantumPrime is an integrator of hardware modules for space infrastructure to create quantum networks based on entanglement. The intended focus of QuantumPrime is to design a small satellite/ground-station module providing entanglement as a service (EaaS). The company was founded in January 2024 and located in Bremen, Germany. | Germany | Communications |
| Quantumz.io | Based in Warsaw, Poland and founded in June of 2019, Quantumz.io is developing a very efficient Quantum Simulator Platform (QSP) based on the idea of parallel programming on GPUs which will be offered as a service. The QSP will be equipped with functionality to efficiently build, run and manage customer’s quantum algorithms. They are also developing post-quantum cryptography (PQC) software solutions named “banax” to support quantum resistant internet communication for commercial usage. In addition, they are also building hardware products capable of post-quantum encrypted communication. | Poland | Software |
| QuantWare | Quantware provides superconducting quantum processing units (QPU) chips for customers who want to develop a quantum computer but desire some help with creation of the chip. Their first products include Soprano, a five qubit chip with single qubit gate fidelities of 99.9% and Cresendo, a traveling wave parametric amplifier (TWPA) that introduces the minimum amount of noise allowed by nature. The company is a spinout from QuTech is located in Delft, The Netherlands and was founded in late 2020. | Netherlands | Hardware |
| QuantX Labs | QuantX Labs is a provider of high precision timing and sensor products used in defence, space and critical infrastructure. They develop and deliver precision solutions for communication, navigation, computing, and defence systems. Their state-of-the-art production and testing facility in Adelaide, South Australia delivers unique industrial capabilities that currently support Australia’s Defence and Space programs. The company was founded in 2016 and is located in Adelaide, Australia. | Australia | Sensors |
| QuantyCat | Founded in 2020 and based in Seattle, Washington, QuantyCat helps solve business problems by developing applications accelerated by quantum computing. They are creating cloud-based APIs don’t require quantum experts to use or manage. The first hardware platforms they will be supporting include D-Wave, IonQ, and Rigetti through Amazon Web Services. | US | Software |
| Quanvia | Quanvia is a Spanish startup providing innovative quantum products in training, research, and consulting via the merge of quantum computing and artificial intelligence. Quanvia operates in Bilbao, Madrid, and Munich, with strategic partners in Sao Paulo, Johannesburg, and Shanghai. The company was founded in July 2021 and is headquartered in Bilbao-Bilbo, Basque Country, Spain. | Spain | Multiple |
| Quarks Interactive | Quarks Interactive mission is to make the aspect of learning quantum computing come as easily and naturally as having a good time, and with that, have every single human being know a bit of quantum. Their product, Quantum Odyssey, has successfully integrated both IBM's Qiskit and OpenQASM open source coding languages/ SDKs. Quantum Odyssey is the first video game in which one can drag and drop qiskit code in order to build visual puzzles, and compile code ready to execute on quantum computers from any puzzle within the game. The company was started in 2018 and is located in Miercurea-Ciuc, Harghita, Romania. | Romania | Software |
| Quaxys | Quaxys provides practical skills-based training for the next generation of engineers holds the key to rapidly scaling business solutions across our most critical industries. By focusing on learner centered course design and employer outcomes, Quaxys’ modular approach to every day training needs ensures that companies can always access a customized training program that meets their needs. The company was founded in 2020 and is located in Chevy Chase, Maryland. | US | Education |
| QuBalt GmbH | Founded in 2015, QuBalt has administrative headquarters in Hamburg/Neumünster, Germany and research headquarters in Riga, Latvia. They develop quantum resistant cryptography algorithms and are also working on quantum computing software algorithms. | Germany | Communications |
| Qubitekk | Qubitekk, founded in 2012 in San Diego, California, recently announced the availability of the world’s first plug-and-play entangled photon generator, the QES1. Like the transistors at the hearts of classical computers, the QES1 enables the flow of information through quantum computers and quantum encryption products – both of which the company is currently developing. | US | Communications |
| Qubit Engineering | Qubit Engineering is a quantum software computing company that has developed new optimization methods for micro-siting wind turbines. The quantum powered micro-siting software will considerably improve the efficiency of wind farms and reduce the overall cost of the projects. They are located in Knoxville, Tennessee and were founded in August of 2018. | US | Software |
| Qubit Pharmaceuticals | Qubit Pharmaceuticals, founded in May 2020, is a spin off from CNAM, CNRS, University of Texas at Austin, Sorbonne University and Washington University, and based in Paris, France. They are developing a software simulation platform called ATLAS which is intended to transform the way drugs are developed by moving from approximation to prediction. The platform allows the calculation of absolute free binding energy of molecules with the highest accuracy. Their software is currently running on large classical supercomputers with the intention of migrating to hybrid classical-quantum systems and then full quantum approaches as the quantum hardware technology matures. | France | Software |
| Qubit Reset LLC | Qubit Reset was formed in October 2018 and is based in Aventura, Florida. Their main research area is quantum repeaters for the quantum internet, but they are also working in other product areas including classical-to-quantum interfaces and quantum key distribution (QKD). | US | Communications |
| Qubit Value | Qubit Value provides consulting, training, and development services to help their customers to gain value and competitive advantage from quantum computing. Their vision is to be the leading quantum computing partner for companies in the Nordics. The company is located in Helsinki, Finland and was formed in 2000. | Finland | Consulting |
| Qubitor | Qubitor is a technology incubation company to build intellectual property and launch startups. Their quantum computation lab is developing quantum based applications especially in Machine Learning and AI. The company was founded in 2017 and based in Singapore. | Singapore | Other |
| Qubitrium | Qubitrium supplies quantum components such as entangled photon sources, single photon detectors, laser current drivers, and other components for use in quantum communication and sensing. The company is located in Istanbul, Turkey and was founded in January 2020. | Turkey | Components |
| Qubrid | Qubrid is an advanced Quantum Computing and Artificial Intelligence (AI) company with a mission to solve real world complex problems in multiple industries. Their leading cutting-edge cloud platform harnesses the power of hybrid quantum-classical computing to efficiently develop and run next generation Quantum algorithms on Quantum Processing Units (QPU), CPU and GPU computing infrastructure. The company was formed in May 2023 and is located in McLean, Virginia. | US | Infrastructure |
| QuDef | QuDef's mission is to be at the forefront of quantum security, empowering organizations to confidently navigate the evolving quantum landscape. They specialize in advanced risk assessments, top-notch threat intelligence, and security consulting to ensure client's seamless integration into the quantum era. The company was founded in June 2024 and is located in Delft, South Holland, Netherlands. | Netherlands | Consulting |
| QUDORA Technologies | QUDORA is a deep-tech spin-off from Physikalisch-Technische Bundesanstalt (PTB) and Leibniz Universität Hannover in Lower Saxony, Germany. Their aim is to bundle the region's expertise in quantum research to build a commercial quantum computer with 50+ quantum bits. Besides developing their quantum processors, they also offer foundry services in microfabrication to external customers. The company was founded in September 2021 and is located in Braunschweig, Germany. | Germany | Hardware |
| QuDot | Founded in May 2018 and located in Fremont, California, QuDot provides quantum circuit simulation software using their patent pending QuDot Net technology to simulate universal quantum computers on commodity hardware. QuDot Net uses a special type of Bayesian Network that allows for the efficient representation of some qubit systems. | US | Software |
| QuEL, Inc. | QuEL, Inc is a startup established to commercialize novel quantum computer control hardware/middleware developed mainly at Osaka University. Their lead product is the QuEL-1 which is used to connect quantum software and a qubit chip. The company is located in Tokyo, Japan and was founded in July 2021. | Japan | Hardware |
| Quemix Inc. | Quemix Inc. provides comprehensive support in quantum technology, including consulting, education, talent development, collaborative research, surveys, and algorithm development, tailored to the needs and conditions of their client companies. Their aim is to consistently support their clients through various quantum technology assistance activities. The company is located in Tokyo, Japan and was founded in June 2019. | Japan | Software |
| QuEra Computing | QuEra Computing is using a neutral atom technology platform to build a scalable, powerful, commercially relevant quantum computing capability. The research team includes many members from the cold atom research groups at Harvard University. They were founded in 2018 and are located in Somerville, Massachusetts. | US | Hardware |
| Quintessence Labs | Based in Deakin, Australia, Quintessence Labs provides quantum true random number generators and quantum key distribution. They currently have in development what they call a second generation quantum key distribution system. This uses a continuous variable bright laser beam for key distribution that can leverage commercial off-the-shelf telecommunications components and existing fiber optic cable to provide very high data throughput rates and a very cost competitive solution. | Australia | Communications |
| QuiX | Formed in January 2019 and located in Enschede, The Netherlands, QuiX is developing a photonic quantum processor based upon silicon nitride waveguides. The founding team includes scientists from the University of Twente and the Amsterdam research institute AMOLF. QuiX intends to offer the first components of their computer in two years and their technology will operate at room temperatures eliminating the need for costly dilution refrigerators. | Netherlands | Hardware |
| QuJiT | Quantum Just in Time (QuJiT) is a consultancy, R & D, and hardware distributor specializing in quantum technologies. The company is located in Hampshire, England and was founded in August 2023. | UK | Multiple |
| Qulabz | Qulabz Inc., founded in late 2017, is focused on building quantum networks/quantum internet and developing expertise in quantum machine learning for finance and new drug discovery verticals. They have created a business unit QuAcademy which aims to facilitate training of students with the combination of skills required for the conceptualization, development and translation of new quantum technologies. They currently work with research labs at IIT Hyderabad, IIT Roorkee, and IIT Bengaluru. | India | Multiple |
| QunaSys | QunaSys, located in Tokyo, Japan, was founded in early 2018 by researchers from the University of Tokyo, Osaka University, and Kyoto University. They develop applications using quantum computing with a focus on quantum chemistry, quantum machine learning and optimization. They are also conducting maintainence and developing new functions for the Qulacs simulator which was originally developed at Kyoto University. | Japan | Software |
| Qunnect | Qunnect was formed in 2017 as a spin-off venture from the Quantum Information Technology group at Stony Brook University (Long Island, NY, USA). They provide a commercial toolbox of quantum devices specifically designed and optimized to upgrade the current digital communication technology into an un-hackable fully secure long-distance quantum communication network. They have developed several portable modular technologies needed to build a fully protected quantum cryptographic network including quantum light sources, characterization devices and quantum light matter interfaces aimed to store and transform quantum information (e.g. quantum memories, quantum logic gates and quantum frequency conversion units). These technologies are room temperature quantum devices which together can efficiently map the quantum state of flying quantum bits onto atomic media, thus creating a pathway to overcome the inherent losses in classical communication channels. | US | Communications |
| Qunova Computing | Qunova Computing builds software for clients in the pharmaceutical discovery and materials industries. Current methods require large amounts of trials to identify a material or drug with the desired property. Using their quantum software solutions, Qunova will allow clients to save large amounts of time in their R&D processes, identifying candidate materials or drugs with the desired properties much faster, freeing up resources and reducing costs. The company is located in Daejeon, South Korea and was formed in January 2021. | South Korea | Software |
| QuNu Labs | Founded in September 2016 and located in Bangalore, India, QuNu Labs develops Quantum cyber-security products using Quantum Key Distribution (QKD) Technology. Their first product is a basic QKD system using Differential Phase Shift Protocol and builds upon four years of initial research followed by incubation at IIT Madras. The company indicates that their systems are optimized for Indian operating conditions and highly cost competitive. | India | Communications |
| Quobly | Quobly (formerly Siquance) is a spin-off from CEA and CNRS that is developing a quantum processor based upon spin qubit technology. They are a fabless startup but will leverage the French and EU semiconductor fabrication capabilities. They were founded in November 2022 and are located in Grenoble, France. | France | Hardware |
| Quoherent | Quoherent is developing a portable quantum computer processor using qubits made from topological insulators. This intrinsically protects its quantum state from external perturbations and allows the computer to work at a wide range of temperatures with fewer qubits needed for error correction. The company was formed in May 2021 and is headquartered in Huntsville, Alabama. | US | Hardware |
| QURECA | QURECA was founded in June 2019 in Glasgow, Scotland, UK. Now it operates globally with a second office in Spain and a team around the world. QURECA is a pioneer in quantum education and resources and has unveiled its new brand identity, an enhanced website, a state-of-the-art Learning Management System (LMS), and an expanded course catalogue. This represents QURECA's commitment to making quantum education accessible, interactive, and impactful for learners worldwide. QURECA also offers recruitment and consulting services. | UK | Consulting |
| QuRISK | QuRISK was created in early 2021 as a result of a substantial and durable collaboration between CLARICE SAS (A French Technology & Risk start-up) and Dr Joe Ghalbouni, Researcher in Quantum Computing and Communication. They elaborate a complete Quantum Computing Framework to help their clients Assess, Mitigate and properly Overcome Quantum threats, while embracing the many opportunities provided by this emerging technology. The company is located in Neuilly-sur-Seine, France. | France | Consulting |
| QuSecure | Located in Menlo Park, California and founded in 2019, QuSecure’s products and services include a quantum resilient blockchain, quantum penetration testing and a quantum enabled policy server. The QuSecure team consists of researchers who share decades of experience in Cybersecurity, Quantum Computing, Machine Learning and Blockchain technologies, combined with seasoned Silicon Valley business leaders who know how to build, scale, protect and innovate. | US | Communications |
| Quside | Quside designs and markets quantum technologies to power all connected devices with the highest quality components. Their proprietary quantum entropy sources enables ultrafast, quantum random number generation for mobile, IoT and data center environments. They are located in Barcelona, Spain and were formed in September 2017 as a spinoff of ICFO. | Spain | Communications |
| Rahko | Rahko is a quantum machine learning company with experts in quantum machine learning and quantum software engineering. They were founded in June 2018 and are located in London, UK. | UK | Software |
| RANDAEMON | RANDAEMON’s mission is to create Quantum Random Number Generators (QRNG) that are hardware-based and integrated into System-on-Chip. The solution is centered around beta decay as a source of entropy and can produce perfect random numbers of various streams of bits per second, up to 0.25 Gbits from one square centimeter of a chip. The company was founded in March 2020 and is located in Warsaw, Poland. | Poland | Communications |
| ReactiveQ | ReactiveQ is tackling materials design where functionality, durability, life, cost, and sustainability are desired characteristics for optimization. They are researching NISQ algorithms as well as conduct fundamental research in preparation for the post fault-tolerant quantum computing era that will be realized decades from now. They are building a materials discovery platform that uses multiphysics simulations and empirical data to accelerate the process of materials discovery. The company is located in Toronto, Canada and was founded in 2018. | Canada | Software |
| Resilient Entanglement | Resilient Entanglement (RE) offers 21st-century solutions to redesign the 20th-century power grid and streamline the journey in building the intelligent grid of the future. The company's mission is to accelerate the electric power industry’s adoption of quantum technology by developing advanced QG solutions. This is a critical step in progressing towards greenhouse gas emission reductions, ensuring U.S. national energy security and resiliency, and educating the next generation of scientists and industry thought leaders. The company was formed in March 2021 and is located in Denver, Colorado. | US | Software |
| Resquant | Resquant develops cryptography accelerators and Hardware Security Modules (HSM) which implement post-quantum algorithms. They also offer training and consulting for clients wishing to migrate to Post-Quantum Cryptography (PQC) solutions. The company is located in Lodz, Poland and was formed in November 2020. | Poland | Communications |
| Riverlane | Incorporated in 2016 and located in Cambridge, UK, Riverlane builds ground-breaking software to unleash the power of quantum computers. Backed by leading venture-capital funds and the University of Cambridge, Riverlane develop software that transforms quantum computers from experimental technology into commercial products. Riverlane is leading a consortium to build Deltaflow.OS; a radically new operating system for quantum computers. | UK | Software |
| RobQuant | RobQuant is a company formed by quantum technology and life science experts. They harness the scalability and adaptability of silicon technology to bring solid-state quantum sensors to users. Their approach offers a significant level-up across the whole gamut of quantum-enabled fields, particularly health and chemical detection. The company is located in Bristol, UK and was founded in May 2023. | UK | Sensors |
| Rotonium | Rotonium is a deep-tech company that focuses on the classical and quantum properties of the Orbital Angular Momentum of photons to improve the bandwidth of communication channels and scalable quantum computers that operate at room temperature. They were founded in April 2022 and are located in Padova, Italy. | Italy | Hardware |
| Rydberg Technologies | Rydberg Technologies is a developer of quantum sensing, measurement, and imaging solutions. Their founding technology platform uses the quantum properties of Rydberg atoms - an atom with a single quasi-free electron orbit around its nucleus – to receive electromagnetic signals over a frequency range from DC to THz with exquisite precision. Rydberg RF technology augments traditional RF performance and creates fundamentally new capabilities in RF sensing, measurement, and imaging that are inaccessible with traditional antenna and solid-state technologies alone. The company is located in Ann Arbor, Michigan and was founded in June 2015. | US | Sensors |
| SandboxAQ | SandboxAQ is an enterprise SaaS company combining AI + Quantum tech to solve hard problems impacting society. Our solutions include post-RSA cybersecurity modules that migrate enterprises to higher levels of security. These Sandbox AQ modules enable post-quantum cryptography (PQC) in line with the new standards that are now emerging in this field. The company was spun out of Alphabet in March 2022 and is located in Mountain View, California. | US | Software |
| SavantX | SavantX is an industry leader in quantum computing and one of the first companies to apply quantum computing systems to solve real-world optimization problems. SavantX applies machine learning and quantum computing to large and complex datasets to find hidden relationships, solve optimization problems, and improve organizational performance. They have recently created one of the first commercial quantum applications to go into production with a solution that optimizes logistics at the Port of Los Angeles. The company was established in 2015 and has corporate headquarters in Jackson, Wyoming with corporate research headquarters in Santa Fe, New Mexico. | US | Software |
| SaxonQ | SaxonQ is developing mobile quantum computers base upon NV Diamond technology. The computers run at room temperature, operate from a wall plug, and require low maintenance. The company is located in Leipzig, Germany and is a spinout of Leipzig University. They were founded in June 2021. | Germany | Hardware |
| SBQuantum | SBQuantum provides sensitive magnetic sensors built using nitrogen vacancy (NV) diamond technology. Their proprietary algorithms allow them to capitalize on the vectorial data and maximize the information can be gathered from metallic or magnetic objects. Not only can their sensors observe an object’s presence, they can also determine its size, orientation, material and distance from the sensor. SBQuantum was founded in 2017 and is located in Sherbrooke, Canada. | Canada | Sensors |
| SCALINQ | SCALINQ develops enabling hardware for superconducting quantum computers. They offer multi-qubit packaging solutions to easily realize larger quantum processors. Stemming from Chalmers University of Technology, our innovations are research-based, validated, and designed to help customers explore the potential of quantum computing. | Sweden | Hardware |
| SDT | SDT Inc. specializes in delivering high-precision software and hardware for advanced research in quantum computing, quantum communications, and chemical engineering. SDT is a full stack quantum company that offers quantum researchers the software tools to perform experiments as well as providing engineering solutions and devices to control quantum qubit states. Alongside partnerships with several Korean national agencies and universities, SDT is also developing a N:N QKD long distance and wireless system. Founded in 2017, SDT is based in Seoul, Korea and has offices in Japan. | South Korea | Multiple |
| SECQAI | SECQAI provides products which secures computation and communication. Their Q-Locked product protects against memory injection attacks and also includes a Quantum Random Number Generator. The company is located in London, UK and was started in May 2021. | UK | Communications |
| SeeDevice | SeeDevice develops high performance CMOS-SWIR (Short Wave Infrared) image sensors and cameras using quantum based photodetector technology for computer & machine vision applications in automotive, industrial, and biomedical/biometric markets. The company was founded in September 2017 and is located in Orange, California. | US | Sensors |
| Seeqc | In 2017, Seeqc was spun-out of Hypres, a leading developer of superconductor electronics. Seeqc owns, upgrades, and operates a state-of-the-art multi-layer superconductive chip fabrication facility and provide foundry services for superconducting devices. They are also developing a new approach to making quantum computing useful, via fully Digital Quantum Computing. The solution combines classical and quantum computing to form an all-digital architecture through a system-on-a-chip design that utilizes 10-40 GHz superconductive classical co-processing to address the efficiency, stability and cost issues endemic to quantum computing systems. The company is headquartered in Elmsford, New York, with additional facilities in Italy and the U.K. | US | Hardware |
| Semicyber | Based in McLean, Virginia and founded in February of 2018, Semicyber specializes in the delivery of data analytics, quantum algorithms, and software services for mission-critical challenges. They announced that they are working with the US Air Force AFWERX on the next generation of quantum algorithms. | US | Software |
| SemiQon | SemiQon is a spinout from the incubator at the VTT Research Center. They develop scalable quantum processing units, built from semiconductor quantum-dot qubits, and cryogenic ultra-low dissipation CMOS hardware for quantum computing. They were started in February 2023 and are located in Espoo, Finland. | Finland | Hardware |
| SheQuantum | SheQuantum is an eLearning firm that provides quantum computing exclusive education with the objective of “Connecting more women to Quantum”, founded in 2020 in India. The Founder & CEO of SheQuantum, Nithyasri Srivathsan is poineering the crucial task of inspiring women across the globe to pursue Quantum Computing through SheQuantum's educational content like lecture series and talks, & inspiring interviews of Quantum industry leaders and academic experts. Nithyasri's vision for SheQuantum is to build a talented women quantum computing workforce through premium certification courses for which it plans to provide special scholarships to its women students. | India | Education |
| SHYN | Founded in 2016, SHYN is a Sofia, Bulgaria-based company working on quantum data visualization. With early financing from Google and support from Amazon they aim to use quantum algorithms to visualize variance (inaccuracy) in data: from stock prices to weather forecasts. The company believes a layer of context, powered by quantum architecture, can help data consumers form better decisions. | Bulgaria | Software |
| Sigma-i | Sigma-i is an “academic tech company” established in 2019 by three researchers from the Tohoku University Quantum Annealing Research & Development group in Sendai, Japan. Its mission is to tangibly deliver brand new technologies after they have been developed within universities and/or research laboratories. Their mission is to tangibly deliver brand new technologies after they have been developed within universities and/or research laboratories. Their initial offering will be to provide quantum consulting services and access to the D-Wave’s family of systems to companies, universities and research laboratories throughout Japan. | Japan | Consulting |
| Silicofeller | Silicofeller develops superconducting quantum processing units (QPU) and quantum sensors. Their main focus is developing fault-tolerant quantum computers with over 1000 qubits or quantum bits by the end of 2023. They have successfully designed a ten-qubit quantum processor and are looking to deploy it in the market by the end of 2021. The company is headquartered in South Delhi, India and was founded by Manan Narang in the year 2021 with the sole aim of making quantum accessible to the people of the country. | India | Hardware |
| Single Quantum | Single Quantum was founded in January 2012 in Delft, the Netherlands as a spin-off from the Kavli Institute of Nanoscience at TU Delft. Single Quantum develops and manufactures single photon detection systems based on the technology of superconducting nanowires. The products are designed for applications in quantum information technology, quantum communication and quantum cryptography, infrared time-resolved spectroscopy, laser ranging and remote sensing (LiDAR). | Netherlands | Hardware |
| Silicon Quantum Computing | Silicon Quantum Computing is a spinout from the University of New South Wales (UNSW) to advance the development and commercialize the technology from the university’s Centre of Excellence for Quantum Computation and Communication Technology (CQC2T). This company will be leveraging the silicon based qubit technology that CQC2T has been working on. The new company will be receiving $83 million AUS (about $66 million USD) in funding from Telstra, UNSW, Commonwealth Bank of Australia, Australian Federal Government, and the state of New South Wales. Their near term goals are to develop a 10-qubit quantum integrated circuit prototype in silicon by 2022 as the forerunner to a silicon-based quantum computer and to expand their patent pool. | Australia | Hardware |
| Siquance | See Quobly. | France | Hardware |
| Snowdrop | Snowdrop’s mission is to take exotic problems where quantum supremacy might exist already, and try to build real-world uses of these where performance is better than you could reasonably do with any conventional classical computer system. The company was founded in August 2024 by Geordie Rose, previously a founder of D-Wave, and is located in Vancouver, Canada. | Canada | Software |
| softwareQ | SoftwareQ provides a variety of quantum software and services including quantum simulators, quantum compilers and optimizers, educational software and consultancy services. The co-founders include Dr. Michele Mosca and Dr. Vlad Gheorghiu from the Institute of Quantum Computing (IQC). The company is based in Waterloo, Canada and it was formed in 2017. | Canada | Software |
| Solid State AI | Founded in October 2017 and located in Toronto, Canada, Solid State AI is building a software-as-a-service (SaaS) platform using hybrid quantum-classical machine learning algorithms that enable process and equipment engineers to increase manufacturing yields, optimize process parameters, and reduce equipment maintenance costs and downtime. These algorithms are particularly effective at predicting on sparse data sets – those with limited data, or those with lots of noise and only a few relevant signals. Solid State AI is another alumni of Toronto’s Creative Destruction Lab’s Quantum Machine Learning program. | Canada | Software |
| Sparrow Quantum | Sparrow Quantum is a start-up formed in May 2016 as a spin-off from the Niels Bohr Institute’s Quantum Photonics Lab in Copenhagen, Denmark. They will be developing and commercializing photonic quantum technology components based on research and patents from the Institute. Their first product is a single photon chip that is being offered to researchers working on quantum photonics. | Denmark | Hardware |
| SpeQtral | SpeQtral (formerly known as S15 Space Systems) is a spin-off from the Centre for Quantum Technologies (CQT) at the National University of Singapore (NUS). The company is developing space-based quantum communication systems using small satellites which will deliver encryption keys via quantum signals. This technology will offer unprecedented security from eavesdropping and enable the next generation of secure communication networks. The company has licensed technology needed to develop compact quantum light sources from NUS and has also hired former CQT researchers to its team. | Singapore | Communications |
| SpinQ | SpinQ is committed to the industrialization of quantum computing, with the goal of developing practical quantum computers and providing a complete set of quantum computing solutions. At present, SpinQ has released the world's first desktop NMR quantum computer “Gemini” and the quantum computing cloud platform “Taurus”, which offers direct open physical underlying control access to real, physical quantum computers, providing users with a stable and easy-to-use quantum computing platform. SpinQ was founded in 2018 and is located in Shenzhen, China. | China | Multiple |
| Spin Quantum Tech | Founded in January 2018 and based in Bogotá, Columbia, Spin Quantum Tech is a quantum software company developing an adaptive collection of quantum algorithms that solves the next wave of cybersecurity trends. Their approach is based on AI and quantum computing to allow learning from the environment and self-improvement. They have a multidisciplinary team that has been working on AI for 15 years and their target markets include cybersecurity companies, solution and cloud providers. | Columbia | Software |
| SpinUp AI | SpinUp AI is a quantum computing software startup developing algorithms for financial markets. The company was originally named Enigma Quantum Limited when it was formed in 2019, but changed its name to SpinUp AI. The company is located in London, UK. | UK | Software |
| Sqale ApS | Sqale ApS is working to revolutionize biopharmaceutical manufacturing with their innovative approach, blending quantum-enhanced optimization, agile pipeline development, and cutting-edge manufacturing concepts. Their mission is to make treatments affordable for cancers, neurological disorders, and infectious diseases. Leveraging quantum-enhanced optimization, we streamline processes for efficiency and cost-effectiveness. Their agile pipeline development ensures rapid adaptation, accelerating research translation. With state-of-the-art manufacturing plants, they are pioneering next-generation production techniques. The company is located in the Copenhagen, Denmark metropolitan area and was started in October 2023. | Denmark | Software |
| Stafford Computing | Stafford Computing uses cutting-edge hybrid quantum-classical algorithms to solve financial institutions' classification problems, including but not limited to: credit scoring, fraud detection, churn prediction and life-time value estimation. They apply the best solutions from digital and quantum annealers to solve complex optimization problems related to portfolio optimization, credit risk analysis, and derivatives pricing. The company was founded in July 2022 and is headquartered in Lewes, Delaware. | US | Software |
| Strangeworks | Strangeworks is a quantum computing software startup in Austin, Texas formed in 2018. Their goal is to make quantum computing accessible via software designed for developers, system managers, and CIOs. Strangeworks also maintains their Strangeworks Community Platform web site which provides a front end to five different quantum frameworks from IBM, Microsoft, Rigetti, Google and D-Wave. | US | Software |
| Super.tech | Super.tech is a spinout of research from the EPiQC collaboration led by the University of Chicago and has a mission to build a full-stack, cross layer architecture for quantum computing. The company will help people building new quantum applications by opening up the inner workings of modern quantum computers and their elemental component, the qubit, to the developer. The company was formed in 2020 and is based in Chicago, Illinois. | US | Software |
| Synergy Quantum | Synergy Quantum provides quantum security solutions based upon Post-Quantum Encryption technology (PQE). The company recently announced that it will enter the designing and packaging of semiconductors incorporating secure Post Quantum Encryption with a particular focus on IoT (Internet of Things). The company is located in Geneva, Switzerland and was founded in 2018. | Switzerland | Communications |
| SynthBits | SynthBits is a quantum sensing company building quantum microscopes that will accelerate advancements in medicine, diagnostics, and research. The company was started in July 2024 and is located in Chicago, Illinois. | US | Sensors |
| Terra Quantum AG | Terra Quantum is a quantum technology company founded in 2019 and based in Rorschach, Switzerland. It is organized as a "Quantum as a Service" company with three core focus areas. The first is Quantum Algorithms as a Service. The second is Quantum Computing as a Service providing customers with access to its high performing logical qubits to equip them with real quantum advantages already today. And the third is Quantum Security as a Service offering quantum security worldwide via its unique quantum secure communication and QKD solutions. | Switzerland | Multiple |
| ThinkQuantum | ThinkQuantum is a spin-off of the University of Padua, is active in the field of cybersecurity and communication systems based on Quantum Technologies. offers a reliable European supply network and covers the full value chain, from design and manufacturing to commissioning of Quantum Key Distribution (QKD) systems and Quantum Random Numbers Generation (QRNG) devices. ThinkQuantum was founded in May 2021 and is located in Sarcedo, Veneto, Italy. | Italy | Communications |
| Tokyo Quantum Computing | Tokyo Quantum Computing (TQC) is a software startup for quantum computing, formed in April 2017 and based in Tokyo, Japan. TQC was founded by Dr. Chiaki Yamaguchi. TQC has a plan to provide a set of computer program source codes for massive simulations of quantum annealing. | Japan | Software |
| TreQ | TreQ is a stealth mode startup that indicates it is leading a quantum computing expedition, installing & operating pioneering systems based on a variety of emerging technologies as "class 0" data centers. The company was founded in January 2023. | UK and US | Hardware |
| TundraSystems Global LTD | TundraSystems was formed in 2014 and is located in Cardiff, UK. They are developing a line of systems based upon Quantum Optical Computing. An early target will be to create a Quantum Microprocessor which will be used as part of an quantum HPC system solution. Their system will be based upon a room temperature silicon photonics technology that they call Opticonductors. | UK | Hardware |
| Turing | Founded in 2016, Turing is located in New York and Berkeley, California. The have developed the XGR-1, Turing's first generation groundbreaking quantum memory, forming the basis of a portable Quantum Hard Drive, which they call Turing QuBEs. Their vision is to go beyond Quantum Key Distribution (QKD) for global secure communications by providing a network of quantum entanglement with superior flexibility and an unprecedented level of scalability. Their mission is to make quantum entanglement a commodity, forming the foundation for a world-wide distributed resource. | US | Communications |
| TuringQ | TuringQ is developing full-stack photonic quantum computer including quantum light sources, optical quantum information, processing chips, detection systems, dedicated optical quantum computing software, optical quantum chips EDA software cloud access, and an optical quantum computing operating system (TuringQ OS). The company is located in Shanghai, China and was founded in February 2021. | China | Hardware |
| Unitary Zero Space | Unitary Zero Space is a technology independent quantum computing and quantum technology services company. They educate and advise their clients in creating and securing business in the second quantum revolution. The company was founded in 2020 and is located in Helsinki, Finland. | Finland | Consulting |
| Universal Quantum | Founded in early 2019 and located in Brighton, UK, Universal Quantum is a spinoff from the Ion Quantum Technology Group at the University of Sussex and headed by Professor Winfried Hensinger. Their goal is to develop practical quantum computers using microwave trapped ion technology that uses long-wavelength radiation and locally applied magnetic fields to replace the vast amounts of individually controlled laser beams used in other ion trap implementations. | UK | Hardware |
| VeriQloud | VeriQloud’s development is centered on quantum network technologies, covering all aspects from protocols and applications to implementations using optical devices. Their goal is to build a commercial offer for clients that have high demands in terms of network security, with quantum network architecture and protocols specifically designed for them. VeriQloud believes that an appropriate use of quantum programming languages can push quantum networks much further than the sole task of establishing shared secret keys through quantum key distribution, even using only currently existing technologies. For this purpose, they are implementing quantum network protocols for various quantum communication technologies including the application of known protocols to industrial problems and development of new network protocols that take advantage of the high security of quantum communication. The company was founded in 2017 and is located in Montrouge, France. | France | Communications |
| Wave Photonics | Wave Photonics Wave Photonics is using computational techniques to create tools and IP to enable and accelerate the development, mass production and adoption of integrated photonic technologies. They believe that many obstacles integrated photonics technologies face can be removed using a combination of simulation, statistical modelling and optimization techniques, so they are creating and testing a new way to approach photonics design. The company is located in Cambridge, England and was founded in May of 2021. | UK | Hardware |
| WelinQ | WelinQ is on a mission to scale-up quantum computing by interconnecting quantum processors. They provide a high performance Quantum Memory to implement hardware-agnostic and full-stack Quantum Links to interconnect multiple Quantum Processing Units (QPU). Their turn-key high-performance Quantum Memory is based on cold-atoms to deploy quantum links regardless of the distance. The company is located in Paris, France and was formed in January 2022. | France | Communications |
| Xairos | Xairos offers secure and accurate timing through entangled photons. Time synchronization is critical for position, navigation, and timing (PNT) and network applications. Their proprietary quantum clock synchronization (QCS) offers timing that is orders of magnitude better than existing methods, and is unspoofable. The company is located in Lone Tree, Colorado near Denver. It was founded in March 2019. | U.S. | Sensors |
| Xanadu | Xanadu is a full-stack quantum startup founded in December 2016 and located in Toronto, Canada. They are developing a quantum photonic processor and an open-source full-stack quantum software platform called Strawberry Fields for photonic quantum computing. Strawberry Fields is implemented in Python and includes a quantum programming language called Blackbird. Xanadu has also started publishing results using their software in such diverse fields such as quantum chemistry, graph theory, machine learning and others. | Canada | Multiple |
| XeedQ | XeedQ GmbH is a Leipzig-based German deep-tech company providing diamond spin-based quantum processors for early adopters. They recently won a 30 million Euro award to deliver a quantum processor with at least 32 qubits to the German Aerospace Center (DLR) by 2026. The company is headquartered in Leipzig, Germany and was founded in June 2021. | Germany | Hardware |
| Xofia | Based in Houston, Texas and founded in early 2019, Xofia develops quantum algorithms to support the modeling of very complex systems. They are focused on developing quantum-based algorithms to support their mathematical modeling solutions based on the combination of first-principle and data-driven models to overcome part of the non-trivial complexity of reconciling multiscale, multiphysics systems with accuracy and causality simultaneously. | US | Software |
| yiyaniQ | yiyaniQ operates at the intersection of AI, Quantum Computing, and Finance. They provide financial institutions with fast and accurate algorithms for pricing complex derivatives and for optimizing portfolios of financial assets with their quantum intelligent optimizer. The company was founded in October 2021 and is located in Toronto, Canada. | Canada | Software |
| Zapata Computing | Founded in 2017 and located in Boston, Massachusetts, Zapata Computing was a quantum computing software company spun out of Harvard University. The company ceased operations in October 2024. | US | Software |
| ZebraKet | ZebraKet is a cleantech startup founded after the University of Toronto Creative Destruction Lab Quantum Stream bootcamp. Initially they developed an inventory optimization solution for the retail industry. They also participated in the University of Maryland Quantum Startup Foundry Pre-Traqtion program. In 2023, after joining Next AI, they pivoted to sensor fusion and placement optimization for methane leak detection using quantum computing and AI methods in the energy industry. The company was founded in August 2021 and is located in Toronto, Canada. | Canada | Software |
| Zurich Instruments | Zurich Instruments AG, a subsidiary of privately own Rohde & Schwarz, develops and sells advanced test and measurement instruments equipped with software for dynamic signal analysis. The majority of their revenue comes from the quantum technology market and this is the center of the company's strategy and R&D efforts. The company was founded in 2008 and its headquarters is in Zurich, Switzerland with international subsidiaries operating in Shanghai and Boston. | Switzerland | Hardware |
| ZuriQ | ZuriQ is developing scalable quantum computers based upon a Penning ion trap technology that can configure the ions into a large 3D array. The company is located in Zurich, Switzerland and was founded in April 2024 as a spinout from ETH Zurich. | Switzerland | Hardware |
| Segment Definitions |
| Hardware – Includes component manufacturers, quantum computing hardware developers, and full-stack suppliers. |
| Software – Includes both tools providers (Compilers, Simulators, Qubit Control Software, etc.) as well as Applications focused software providers. Companies that develop standard software but also provide application consulting services are included in this category. |
| Communications – Includes all providers working in quantum communications, quantum cryptography (both QKD and PQC) as well as companies providing QRNGs. |
| Consulting – Companies providing business and technical consulting services, but are not developing standard software or hardware products. |
| Multiple – Companies participating on several of the segments listed above. |
| Other – Companies that work in other areas such as incubators, IP development, and cloud providers (not full-stack). |
