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Top Quantum Computing Companies (31)

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Hardware • Information Technology • Quantum Computing
New Haven, Connecticut, USA
35 Employees

Quantum Circuits, Inc. (QCI) is developing a full-stack quantum computing platform using superconducting devices and a modular, robust, and scalable architecture. QCI's mission is to build the first truly useful quantum computers. Our novel approach to building quantum computers is based on technology developed over a decade of research at Yale University's world-class quantum labs. Our machines have built-in error correction, unique software features that enable lightning-fast algorithm execution, and multiple modes of operation to solve more algorithms than ever, all in one quantum computer.


Information Technology • Software • Quantum Computing
Palo Alto, California, USA
199,202 Employees

D-Wave is the leader in the development and delivery of quantum computing systems, software and services and is the world's first commercial supplier of quantum computers and the only company developing both annealing quantum computers and gate-model quantum computers. Our mission is to unlock the power of quantum computing for the world. We do this by delivering customer value with practical quantum applications for problems as diverse as logistics, artificial intelligence, materials sciences, drug discovery, scheduling, cybersecurity, fault detection, and financial modeling.


Information Technology • Quantum Computing • Infrastructure as a Service (IaaS) • Big Data Analytics
12 Offices
533,854 Employees

At IBM, work is more than a job - it's a calling: To build. To design. To code. To consult. To think along with clients and sell. To make markets. To invent. To collaborate. Not just to do something better, but to attempt things you've never thought possible. To lead in this new era of technology and solve some of the world's most challenging problems. IBM is a leading cloud platform and cognitive solutions company. Restlessly reinventing since 1911, we are the largest technology and consulting employer in the world, with more than 350,000 employees serving clients in 170 countries. With Watson, the AI platform for business, powered by data, we are building industry-based solutions to real-world problems. For more than seven decades, IBM Research has defined the future of information technology with more than 3,000 researchers in 12 labs located across six continents.


Software • Quantum Computing • Metaverse • Infrastructure as a Service (IaaS)
Redmond, Washington, USA
206,870 Employees

At Microsoft, our mission is to empower every person and every organization on the planet to achieve more. Our mission is grounded in both the world in which we live and the future we strive to create. Today, we live in a mobile-first, cloud-first world, and the transformation we are driving across our businesses is designed to enable Microsoft and our customers to thrive in this world.


Big Data • Cloud • Software • Cybersecurity • Quantum Computing
Irving, Texas, USA
75,792 Employees

Atos is a global leader in digital transformation with 110,000 employees and annual revenue of € 12 billion. European number one in Cybersecurity, Cloud and High-Performance Computing, the Group provides tailored end-to-end solutions for all industries in 73 countries. Pioneer in decarbonization services and products, Atos is committed to a secure and decarbonized digital for its clients. Atos operates under the brands Atos and Atos|Syntel. Atos is a SE (Societas Europaea), listed on the CAC40 Paris stock index. The purpose of Atos is to help design the future of the information space. Its expertise and services support the development of knowledge, education and research in a multicultural approach and contribute to the development of scientific and technological excellence. Across the world, the Group enables its customers and employees, and members of societies at large to live, work and develop sustainably, in a safe and secure information space.


Cloud • Hardware • Information Technology • Software • Quantum Computing
2 Offices
140 Employees

Rigetti Computing is building the world’s most powerful computers to help solve humanity’s most pressing and important problems. These systems will perform computations that today’s fastest supercomputers are incapable of — unlocking entirely new classes of problems and offering a direct path to solutions. We believe quantum computing is going to significantly affect health care, how we treat disease, how we generate energy, and how we feed humanity. Our superconducting quantum computing systems are available over the cloud via Rigetti Quantum Cloud Services. We were founded in 2013 by Chad Rigetti. We are located in Berkeley and Fremont, California, and have employees based all over the world.


AdTech • Software • Quantum Computing • Metaverse
16 Offices
244,433 Employees

A problem isn't truly solved until it's solved for all. Googlers build products that help create opportunities for everyone, whether down the street or across the globe. Bring your insight, imagination and a healthy disregard for the impossible. Bring everything that makes you unique. Together, we can build for everyone.


Quantum Computing • Manufacturing
Fremont, California, USA
36 Employees

AOSense, Inc. is a leading developer and manufacturer of quantum technologies. We build systems and sub-components including atom optic devices for precision navigation, gravity measurement, timekeeping and quantum computing. Our capabilities include gyroscopes, accelerometers, inertial measurement units (IMUs), gravimeters, gravity gradiometers, and atomic frequency standards. A variety of quantum technologies such as computing, magnetometry and quantum communication benefit from our development of sub-components such as compact and stable laser systems, atom sources, and a variety of hardware. AOSense was formed in 2004 by Brenton Young and Mark Kasevich to spin-off innovative research developed at Stanford University, joined by Jim Spilker as Chairman. In 2006, AOSense was awarded its first prime contract from DARPA to design, build, and test a gravity gradiometer and single axis accelerometer/gyroscope. Since then, AOSense has successfully designed and built state-of-the-art cold atom technology for numerous government sponsored programs funded by DARPA, Air Force, Army, Navy, NASA, NSF, DTRA, and the intelligence community. AOSense is an employee-owned company.


Hardware • Quantum Computing
Berkeley, California, USA
17 Employees

Bleximo is building full-stack superconducting application-specific systems. Our core thesis is that integrated solutions, with a focus on the unique challenges of each high-value practical problem, will offer a competitive advantage to our customers. The ability to co-design processors, software and control stack in one product development process is our strategic differentiator: everything from the fundamental physics of superconducting technology to the dynamics of the software in a deployed system is considered in an integrated way. With state-of-the-art coherence times, our superconducting processor technology provides the foundation for building the most advanced systems on the market.


Hardware • Quantum Computing
Boston, Massachusetts, USA
58 Employees

Located in Boston, QuEra Computing is a maker of advanced neutral-atoms based quantum computers, pushing the boundaries of what is possible in the industry. Founded in 2018, the company is built on pioneering research recently conducted nearby at both Harvard University and MIT. QuEra is building the industry’s most scalable quantum computers to tackle useful but classically intractable problems for commercially relevant applications. Our signature 256-qubit machine, Aquila, the largest publicly-accessible machine in the world, is available now for general use over the Amazon Braket cloud. For more information, visit us at quera.com.


Software • Quantum Computing
Austin, Texas, USA
16 Employees

Strangeworks is an unconventional computing software company based in Austin, TX. Founded by whurley, Strangeworks is currently making quantum computing accessible by building and delivering tools for software developers and researchers, and systems management for IT Administrators and CIOs. Strangeworks'​ mission is to revolutionize technology by guiding companies through the confusion and chaos of quantum computing, making it easily accessible to all.


Quantum Computing
4 Employees

Indiana’s Public-Private Partnership for the Development of the Most Important Technology Center in the Midwest


Quantum Computing
Wakefield, England, GBR
27 Employees

Our optical processing technology is enabling a new age of secure computation by unlocking the power of Fully Homomorphic Encryption. For more information visit www.optalysys.com.


Quantum Computing
Singapore, Singapore, SGP
20 Employees

Atomionics is a Singapore based VC-backed startup building quantum sensors for Navigation and Resource Exploration. We measure gravity, acceleration, and rotation 1000x better than the state of the art. Atomionics sensors can build a complete map of the underground, thus help pinpoint underground structures like tunnels and bunkers, and predict earthquakes, provide precise navigation, and build a universal positioning system that works everywhere – underground, underwater, and even in space. We have deep expertise in bringing complex technologies from a lab environment to the dynamic real world. At Atomionics we like to cultivate a casual and friendly environment. We are a small focused group in a high-energy environment. The core of what we are building is called cold atom interferometry, where we cool down atoms to micro Kelvin temperatures by shooting lasers at them. Our team has over 30 years of combined relevant research experience. This allows us to measure the forces acting on them precisely. Due to the complexity of our work, our employees get to interact with other interdisciplinary domains such as Electronics Engineering, Mechanical Engineering, Physics, and Software Engineering. Our company likes to treat our work as a “gym for our minds”. In addition, we are backed by some fantastic investors from the private and public sectors, such as Wavemaker, SGInnovate, Capvista, 500startups, and other prominent angels.


Artificial Intelligence • Hardware • Machine Learning • Quantum Computing
132 Employees


Cybersecurity • Quantum Computing
35 Employees

ISARA Corporation is a security solutions company specializing in creating class-defining quantum-safe cryptography for today's computing ecosystems. When ISARA was founded in 2015, we kept one ambitious mission in mind: to build a quantum-safe world where all the possibilities and benefits of quantum computing can be realized, with none of the security risks.


Automotive • Blockchain • Pet • eSports • Web3 • Quantum Computing • SEO
3 Employees


Software • Quantum Computing
Singapore, Singapore, SGP
21 Employees

At Entropica Labs, we build software tools for designing, constructing and deploying large-scale quantum algorithms to quantum computers.


Information Technology • Software • Quantum Computing
Berkeley, California, USA
40 Employees

Scientific and technological breakthroughs take years of tireless work, fighting for resources and pushing for acceptance of new ideas. What keeps researchers and engineers plodding on to the next big discovery? It’s an obsession. A life’s calling. At Atom Computing, we’re our customers’ biggest fans on the journey of discovery. That’s why we’re obsessed with creating the world’s most scalable and reliable quantum computers—giving them the power to develop breakthroughs that change the world.


Software • Quantum Computing
Boston, Massachusetts, USA
94 Employees

Our scientists help industry-leading companies understand — and capitalize on — the capabilities of quantum computing today, and the possibilities of quantum computing tomorrow. With Fortune Global 1000 companies, we are developing solutions for a wide range of industries including chemistry, logistics, finance, oil and gas, aviation, pharmaceuticals and materials. Zapata's quantum platform Orquestra(R) combines a powerful software platform and quantum algorithm libraries to deliver real-world advances in computational power for applications — particularly in machine learning, optimization and chemistry. Orquestra enables users to compose quantum workflows and orchestrate their execution across classical and quantum technologies.