Private/Startup Companies

The following is a list of startup or private companies working on Quantum Computing.   More information on these companies will be added as this website is built out.    Any additions or corrections to this list can be sent to

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 Toronto Canada.

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.

Alpine Quantum Technologies, GmbH
Located in Innsbruck, Austria, Alpine Quantum Technologies 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.

Anyon Systems Inc.
Anyon Systems Inc. is a Canadian technology startup with the mission of introducing Quantum Electronic Design Automation toolkits for design and optimization of nano/quantum electronics.  Anyon provides a Quantum Device Simulator (QDS) to design and optimize novel Quantum Electronic Devices.

ApexQubit is developing quantum software for finance industry using quantum algorithms for optimization, machine learning, and Monte Carlo simulations.  The company was founded in November, 2018 and is located in Minsk, Belarus. In December, 2018 they received a pre-seed round of financing for an undisclosed amount.
Toronto based 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. is focusing on the global market with a particular emphasis on China and have an affiliate company in Shenzhen, China.

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.

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. 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.

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.

Launched in September 2017 and based in Warsaw, Poland, BOHR∞ (BOHR.TECHNOLOGY) is a company that uses quantum machine learning algorithms and software to solve complex optimization problems across various industries including the mobility, transportation, energy, finance, insurance and manufacturing sectors.  As a demonstration, they have created an open source app that solves the travelling salesman problem on a quantum computer and it is available now on GitHub.

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.

Black Brane Systems
Incorporated in February 2016, Black Brane Systems is a stealth-mode quantum machine learning and computing start-up located in Toronto.  Their web site is still under development.

bra-ket science
Formed in June 2017 and based in Austin, Texas, 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.

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.

Cambridge Quantum Computing Limited (CQC)
CQC is company based in the United Kingdom with a focus on developing a Quantum Operating System including a platform for developing a quantum processor, and on related algorithms and software.  CQC has built a proprietary operating system for Quantum Computers (t|ket>) and has a suite of quantum algorithms for applications and programmes in various stages of development.  CQC has been working in the quantum computational chemistry area and recently announced they have successfully implemented state-of-the-art quantum algorithms on the IBM 16 qubit quantum computer to calculate the excited states of molecules that take into account multi-reference characteristics.

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.

D-Wave Systems Inc.
D-Wave was one of the earliest commercial companies formed to pursue quantum computing.   There were founded in 1999 in Vancouver, Canada with the goal of making practical quantum computing a reality and have focused on developing a series of adiabatic quantum annealing processors that can be used with quadratic unconstrained binary optimization (QUBO) problems.    Their latest machine is a 2000 qubit machine called the D-Wave 2000Q.  D-Wave offers this machine for sale to customers who wish to install a machine on-site. D-Wave also provides offers cloud computing services for customers who wish to access this capability remotely.  In addition to the hardware, D-Wave also offers a full suite of software development tools and libraries to help their customers accelerate the development of applications for use on the machine.

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.

EeroQ is a quantum hardware start-up based in New York and Lansing, Michigan formed earlier in 2017.  They are working on developing a unique quantum chip that would have potential advantages over other qubit technologies. The approach is based on a foundation of well understood physics. 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.

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.

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).

Everettian Technologies
Everettian is a Quantum Machine Learning (QML) Software Application Company. Currently focused on developing new QML algorithms as well as applying classical-quantum hybrid machine learning approaches to solve real-world problems through their applications, Everettian’s mission is to push the frontiers of machine learning and quantum computing in order to deliver significant business value to their clients. Founded in 2017, Everettian Technologies is based out of Waterloo, Ontario, Canada.

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.

GTN innovates a quantum machine learning technology to transform drug discovery.  They were founded in May 2017 and based in London, England.  Their patented technology, called Generative Tensorial Networks, searches the astronomically large space of drug-like molecules. The software combines and builds upon techniques from machine learning and quantum physics to simulate, filter and search for molecules, halving development costs and discovering molecules entirely hidden from view. GTN participates in the Prosperity Partnership, funded by the UK’s Engineering and Physical Sciences Research Council (EPSRC), which is a collaboration between the UCL Quantum Science and Technology Institute, Google Quantum AI Lab and the University of Bristol Quantum Information Institute to harness the power of quantum computers for applications in modelling and simulation.

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.

Heisenberg Quantum Simulations
Formed in 2018 and based in Karlsruhe, German, 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.

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.

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.

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.

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.

IonQ is a new startup based in College Park, Maryland being formed by scientists at the University of Maryland and Duke University.   They will be pursuing quantum computing based upon trapped ion technology.   We will publish more information on them as it becomes available.

IQM Finland
Founded in 2018 and based in Espoo, Finland, IQM is building scalable hardware for universal general purpose quantum computer based upon superconducting qubits. They were founded as spin-off of the Quantum Computing and Devices research group of Aalto University. IQM is making use of a patented patented quantum-circuit refrigerator technology that was originally developed at the Quantum Computing and Device research group.

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.

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.  Beside developing their own products they will also provide research-as-a-service (RaaS) and consulting services for knowledge transfer and software integration.

Ketita Labs
Founded in 2018, Ketita Labs OÜ is an Estonian university spin-off.  They develop software for near-term quantum computers.

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.

Labber Quantum
Based in Cambridge, Massachusetts, Labber Quantum develops control solutions for experimental quantum computing.  Their product provides an interface between the quantum devices and the classical electronics needed for control and manipulation. The software handles instrument control, signal generation, qubit calibration and dynamical error suppression. This ensures that users get the most out of their qubits and allows them to accurately implement the intended quantum algorithms. The software is designed to work with any qubit type and instrument vendor, allowing flexibility in terms of hardware.

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.

Based in Tokyo and established in 2008, MDR Corporation develops hardware, middleware and applications for quantum computing, collaborating with Japanese domestic companies, organizations and universities.  MDR provides a Python based SDK (Software Development Kit) called Blueqat for universal gate model quantum computers and MDR Superfast, an NVIDIA CUDA based simulator. MDR recently announced an agreement with D-Wave  to use their quantum computers to develop quantum computing applications for machine learning and optimization problems which you can view by clicking here.

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.

Nordic Quantum Computing Group (NQCG)
NQCG, based in Oslo, Norway, is performing research and development in the area of commercial exploitation of nano-scale science, engineering and technology. Their main area of interest is Quantum Information Technology. They have been working with Lockheed Martin Corporation and universities and national labs through the vision development of AI for business intelligence reasoning and the future of investment using cutting edge technologies. This is about how to use AI techniques and algorithms to identify investment opportunities earlier, i.e., their algorithmic systems will be identifying X number of investment opportunities as they emerge (for seed/series A). NQCG operates as a hybrid of a technology company and technology investor.

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.

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.  Their web site appears to be still in development.

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.

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.

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.

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.

PsiQuantum was formed in June 2016 and based in Palo Alto, California.  They are using a photonic approach to manufacture a universal quantum computer in a CMOS silicon fab.   They are still in stealth mode and more information on them will be published when it is available.

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.

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.

QbitLogic is a quantum computing software company with a general focus on AI algorithms for quantum computers.    They are located in Atlanta, Georgia.

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.

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.

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.

Qilimanjaro Quantum Hub
Qilimanjaro Quantum Hub was founded in early 2018 and will be based in Barcelona, Spain.  Their vision is to build a cloud platform available to everyone who would like to explore novel quantum computing technologies at low cost.  They plan on constructing a coherent quantum annealer based upon persistent current flux qubits and offering access over the cloud.  They will also have a services group that will assist individuals and companies to adapt their problems to quantum algorithms that run on quantum machines.  One of the more unusual aspects of this company are their plans to seek funding through an Initial Coin Offering (ICO) of a cryptocurrency token they call the QBIT.  More details on their plan are available in a whitepaper posted on their web site.

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.

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.

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.

QSpice Labs
QSpice Labs provides software and components that support the design and control of quantum processing units (QPUs).  They have produced the first quantum electronic design and analysis tool which they call the QSPICE Design Software.  They will also manufacture standardized modular hardware components optimized for QPUs starting with control signal generators.  Associated with this they will also use machine learning to help optimize the control hardware for use with each QPU.  QSpice Labs is located in Toronto, Canada and was founded in October 2017.

Qu & Co
Based in Amsterdam, Netherlands, Qu & Co partners with corporate clients to identify high-value business problems for which quantum computing is expected to provide tractability or speed-up compared to classical computing. Together with their scientific advisors (academia from the leading quantum information processing groups) their consultants and quantum-developers help clients to map their business problems to appropriate quantum algorithms, test those algorithms on a simulator, benchmark their performance against the available classical solutions, and select the best suitable quantum hardware for running the algorithms and to implement the chosen solution on the chosen hardware. Qu & Co works with multiple hardware developers to offer their clients the best suitable platform for solving their specific business challenges.

Founded in June 2017 and located in Marcoussis, France (near Paris), Quandela is a developer of a photon source device designed to create photonics products for quantum-based research and communication.  The company is a spin-off company from the C2N-CNRS laboratory in Paris.  Quandela’s single-photon source device combines photonics and semiconductor quantum dots for quantum communication, computation and sensing and permits collection of emitted single-photons with exceptional efficiency at high rates, enabling researchers to strongly reduce the charge noise decoherence and assist in the emission of identical photons with fidelity close to unity.

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.

Quantum Benchmark Inc.
Quantum Benchmark Inc., is located in Kitchener, Ontario, Canada and was founded in February 2017.  They provide software solutions that enable error characterization, error mitigation, error correction and performance validation for quantum computing hardware. They offer the True-QTM suite of software products for optimizing the design and to validate quantum hardware.  These products are targeted at makers and users of quantum computers, across all quantum computing hardware architectures.

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.

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.

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).

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.

Quantum Lambda
Incorporated in August 2018, Quantum Lambda, LLC. is a stealth-mode quantum machine learning and computing start-up located in Palo Alto, CA and Chicago, IL

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.

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 Leeds, West Yorkshire, 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, but do not appear to have a web site yet.

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.

QuantumX is a incubator/ venture studio with locations in Cambridge, England and San Francisco.  Their aim is to create the most intense and advanced venture creation incubator for quantum scientists and engineers.  QuantumX has a partnership with Cambridge Quantum Computing (CQC) that provides access the CQC’s quantum compiler.

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.

Qubitera, LLC
Formed in January 2018 and based in Mountain View California, Qubitera plans on developing innovative research-based solutions to challenges in near-term quantum computing and AI-assisted technologies.

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.

Founded in 2017 and based in Los Angeles, California, Qulab Inc. has a mission of automating molecular drug design by leveraging the power of classical and quantum computers.

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.

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.

QxBranch  is a quantum software company formed in 2014 by executives from Lockheed Martin and Aerospace Concepts.  The company’s team has skills in systems engineering, data analytics, machine learning, and quantum computing for finance, insurance, aerospace, and security customers worldwide.  QxBranch is headquartered in Washington, D.C., with offices in Hong Kong, London, and Adelaide, Australia.

Rigetti Computing
Rigetti Computing, based in Berkeley, California, is building a cloud quantum computing platform for artificial intelligence and computational chemistry. Rigetti recently opened up private beta testing of Forest its API for quantum computing in the cloud. Forest emphasizes a quantum-classical hybrid computing model, integrating directly with existing cloud infrastructure and treating the quantum computer as an accelerator.

River Lane Research
Incorporated in 2016 and located in Cambridge, UK, River Lane Research (RLR) is a quantum computing software company spun out of the University of Cambridge. RLR provides consulting services to clients in industry and government, as well as developing new quantum algorithms that solve high-value problems in machine learning and quantum chemistry. In collaboration with dividiti Ltd, RLR is developing Quantum Collective Knowledge, a software development kit that enables fair and reproducible benchmarking, optimization and co-design of quantum software and hardware, while dramatically reducing time to market and R&D costs.

S15 Space Systems
Founded in February 2018 and located in Singapore, S15 Space Systems is developing space-based, quantum-safe communications built on Quantum Key Distribution (QKD) technologies developed at the Centre for Quantum Technologies (CQT).

SeeQC – A subsidiary of Hypres
SeeQC, based in Rome, Italy, is a newly formed subsidiary of Hypres, a U.S. based company specializing in digital superconductors.  Hypres was formed in 1983 and has been working with superconducting circuits ever since.  SeeQC will be the center of their efforts to apply their superconducting expertise to the quantum realm.  They will initially be working on developing superconducting circuitry to resolve control issues in quantum processors.  A near term goal is to develop cryogenic qubit controllers that include superconducting spintronic memory.

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 Telestra, 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.

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.

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.

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.

Strangeworks is a newly formed (March 2018) quantum computing software startup in Austin, Texas.  They are still in stealth mode but more information is scheduled to be announced at the SXSW Conference on March 13, 2018.

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.

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.

Founded in 2016, Turing is a quantum software company still in stealth mode.

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.

Zapata Computing
Zapata Computing is located in Cambridge, Massachusetts at The Engine, MIT’s startup incubator.  Zapata is a quantum software and services company established to commercialize the quantum algorithms research conducted in the lab of Alán Aspuru-Guzik, Professor of Chemistry and Chemical Biology at Harvard University.  More details can be found in their recent seed funding announcement which you can find here.

@ 2:34 pm

Dear Doug Finke,

I’m enjoying your site.
Please add our startup to “Private/Startup Companies” in your site .
Our startup is “Tokyo Quantum Computing”,
and our profile is “Tokyo Quantum Computing (TQC) is a software startup for quantum computing, formed in April 2017, 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”.

Best regards,

Chiaki Yamaguchi, Ph.D.

    @ 9:05 pm

    Tokyo Quantum Computing has now been added to the list of Private/Startup companies. Good luck!

      @ 10:23 pm

      Dear Doug Finke,

      Thank you very much.

      Best regards,

      Chiaki Yamaguchi, Ph.D.

    @ 5:06 am

    Please do also add to your Site QuantumX and JV with CQC and focused on Incubating QC startups.

      @ 2:41 pm

      QuantumX has been added to the list of PRIVATE/STARTUP companies. Good luck!

Aritra Sarkar
@ 1:52 am

How about QuSoft? Their webpage reads, “Today QuSoft, the first research center dedicated to quantum software, is launched. It is a joint initiative of CWI, UvA and VU, and will be located at Amsterdam Science Park. QuSoft complements the research conducted by QuTech, which focuses on the development of quantum hardware, and thus strengthens the position of Amsterdam and the Netherlands in world-class quantum information research.”

    @ 8:36 pm

    QuSoft is already listed in the Government/Non-Profit section.

    Doug Finke
    Managing Editor

@ 9:44 am

Great list. It would be nice if the companies were labeled private vs public.

@ 5:23 pm

xanadu has come out of stealth.

    @ 9:08 am

    Thank you for pointing out that Xanadu has come out of stealth. I have updated their description on this page. With software named Strawberry Fields and Blackbird they must be Beatles fans!

    Doug Finke
    Managing Editor

martine Lapierre
@ 8:50 am

Sorry to confirm sad news : SeQurenet was stopped in June 2017. You have proof of it at

    @ 12:39 pm

    Thank-you for confirming this. We have removed SeQurenet from this listing of PRIVATE/STARTUP companies.

    Doug Finke
    Managing Editor

@ 7:57 am

Great list! Can Delft Circuits ( also be added to this list? Thanks!

@ 11:00 am

Thank you for letting us know about Delft Circuits. We have added it to the list of Private/Startup companies.

Doug Finke
Managing Editor

Michele Brouck
@ 2:38 pm

If you wouldn’t mind marking which of these are startups, that would be amazing. I have been researching them online and for some of them it is hard to distinguish which ones are backed startups vs. private companies.

    @ 3:41 pm

    All the companies on this list are Private, so their exact capital structure is not public information. However, I do not believe that any of the companies on this list are profitable enough to be self-funded. All of these companies have either received funding from a venture capital firm and/or a corporate investor or they are looking to get funding from an investment source. We do list the venture investors and their portfolio companies on the Venture Capital page when and if the investments are announced.

    The one company that some might not call a startup is D-Wave since they were founded in 1999. Most of the rest were founded within the last few years.

    Doug Finke
    Managing Editor

@ 1:26 am

ID Quantique acquired by SK Telecom…

    @ 10:14 am

    If you read our news article dated February 28, 2018 on the $65 million investment in ID Quantique by SK Telecom, it indicates that SK has a large ownership position in ID Quantique, but it is not 100%. There are still other entities that own portions of the company. As a result, we will continue to list ID Quantique on this Private/Startup page since it is not a 100% owned subsidiary.

    Doug Finke
    Managing Editor

@ 1:30 am

very informative ,it was…….. but i have a little suggestion that you could have sorted the startup country wise which would avoid scrolling down the whole page to find a single company …….

    @ 8:53 am

    Thank-you for your comment. There is a quick and easy way to search a page to find a single company by using the built-in FIND function in your browser. In Chrome, for example, you type CTRL-F and a search box appears. Also note that this web site has a built-in SEARCH function that you can find in the lower left corner of each web page. You can type in a term and it will show you where it found that term anywhere on the web site.

    Doug Finke
    Managing Editor


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