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.

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.  At this point, it appears the web site for this company is still in development.

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.
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 show on their web site six granted patents and five pending patents related to various quantum algorithms.

Atom Computing
Founded in 2018 and located in the San Francisco Bay Area, 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. Their web site is under development.

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.

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 adiabatic quantum annealing processors that can be used with binary quadratic optimization problems.    They recently introduced the 1000+ qubit machine called the D-Wave 2X and are currently the only company offering a quantum computer to the marketplace.

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

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.

Fathom Computing
Fathom Computing is a startup based in Menlo Park, California.    They are still in stealth mode and more information will be published when it is available.

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.

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

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.

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.

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.

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 Wildcat ( that enables engineers to develop apps for solving Ising problems. 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.

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.

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.

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 a new 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 and are funded by Main Sequence Ventures, a venture fund associated with the Australian government.

QC Ware
QC Ware Corp. is an early-stage company developing a cloud-based platform for quantum computing machines. QC Ware’s platform simplifies QC programming and provides low-cost access to QC machines.    They are located in Mountain View, California.

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.

Founded in 2017 and located in Basel, Switzerland, QNAMI is a spinout of the quantum sensing group at the University of Basel and the first company to bring quantum sensing solutions to the market. QNAMI’s products are based on proven and robust quantum sensing technologies that allow their customers to perform non-invasiveand quantitative imaging and sensing down to the nanoscale and in all types of environment. QNAMI offers nanostructure diamond probes with embedded spins as powerful quantum sensors and develops fully integrated hardware and software solutions to address the demand across different applications from fundamental material science to medical early-stage diagnostic.

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.

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), University of Science and Technology of China (USTC),

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.

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.

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.

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.

SeQureNet is a start-up company in Paris, France and a spin-off from the quantum information team of Telecom ParisTech.  SeQureNet brings to the market products relying on continuous variable quantum key distribution (CVQKD) in order to provide high security assurances for network services and practical applications. This company’s web site is no longer active so they may no longer be in business.

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.

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.

With headquarters in Berkeley, California, Turing is a full-stack quantum computing company with both hardware and software divisions.  They will be using a diamond based quantum hardware technology with an emphasis on error correction and scalability.  In addition, they are developing online/offline control software for quantum computers and will also offer error correction IP to other quantum computing companies.

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


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