Companies
Quantum organization directory
Compare published quantum companies, labs, investors, and ecosystem organizations by category, stage, headquarters, focus area, and verified source trail.
DARPA Quantum Benchmarking Initiative
Government Program
DARPA's Quantum Benchmarking Initiative evaluates and validates paths toward useful quantum computers. Founded: 2021. Estimated employees: Unknown. Known funding: Government funded. Notable products: Quantum benchmarking program.
Arlington, Virginia, USA
DCVC
Investment Firm
DCVC is a deep tech venture capital firm with investments in quantum and frontier technology companies. Founded: 2011. Estimated employees: 11-50. Known funding: Investment firm. Notable products: Deep tech venture portfolio.
Palo Alto, California, USA
Delta g
Quantum Sensors
Delta g develops quantum gravity gradient sensors for underground mapping and infrastructure applications. Founded: 2023. Estimated employees: 11-50. Known funding: £4.6M+ reported. Notable products: Quantum gravity gradiometer.
Birmingham, England, UK
DeteQt
Quantum Sensors
DeteQt develops diamond-based quantum sensors for defense, navigation, and industrial measurement. Founded: 2021. Estimated employees: 1-10. Known funding: Seed funded. Notable products: Diamond quantum sensors.
Delft, Netherlands
Diraq
Hardware
Diraq develops silicon quantum dots and CMOS-compatible qubit technology. Founded: 2022. Estimated employees: 11-50. Known funding: Unknown. Notable products: Silicon quantum dot processors.
Sydney, New South Wales, Australia
DOE National Quantum Information Science Research Centers
Government Program
The DOE NQISRC program funds national quantum centers focused on computing, networking, sensing, materials, and systems. Founded: 2020. Estimated employees: Unknown. Known funding: $625M renewal announced. Notable products: Five DOE quantum centers.
Washington, D.C., USA
Element Six
Quantum Sensors
Element Six supplies synthetic diamond materials used in quantum sensing, quantum communications, and advanced electronics. Founded: 1946. Estimated employees: 1000+. Known funding: Parent company funded. Notable products: Quantum-grade synthetic diamond.
Oxford, England, UK
European Quantum Flagship
Government Program
The European Quantum Flagship coordinates European funding and research for quantum technologies. Founded: 2018. Estimated employees: Unknown. Known funding: €1B-scale program. Notable products: European Quantum Flagship projects.
Brussels, Belgium
evolutionQ
Quantum Security
evolutionQ provides quantum-safe cybersecurity products and advisory services focused on cryptographic risk. Founded: 2015. Estimated employees: 11-50. Known funding: Unknown. Notable products: BasejumpQDN, quantum-safe security services.
Waterloo, Ontario, Canada
Exail Quantum Sensors
Quantum Sensors
Exail develops inertial navigation and quantum sensing products including cold-atom gravimeters through Muquans heritage. Founded: Unknown. Estimated employees: 1000+. Known funding: Unknown. Notable products: Absolute Quantum Gravimeter.
Paris, France
Fermilab Superconducting Quantum Materials and Systems Center
Research Lab
SQMS is a DOE national quantum center focused on superconducting quantum materials and systems. Founded: 2020. Estimated employees: 201-500. Known funding: Government funded. Notable products: SQMS Center.
Batavia, Illinois, USA
German Quantum Technologies Program
Government Program
Germany's quantum technologies program supports national quantum research, industry, and technology transfer. Founded: Unknown. Estimated employees: Unknown. Known funding: Government funded. Notable products: Quantentechnologien program.
Berlin, Germany
Google Quantum AI
Hardware
Google Quantum AI develops superconducting quantum processors, quantum error correction, and quantum algorithms. Founded: 2012. Estimated employees: 501-1000. Known funding: Parent company funded. Notable products: Sycamore, Willow, Quantum AI research stack.
Santa Barbara, California, USA
Harvard Quantum Initiative
University
Harvard Quantum Initiative supports quantum science and engineering across Harvard research groups. Founded: 2018. Estimated employees: Unknown. Known funding: University funded. Notable products: Harvard quantum research programs.
Cambridge, Massachusetts, USA
Horizon Quantum Computing
Software
Horizon Quantum Computing develops tools to simplify quantum software creation from classical code. Founded: 2018. Estimated employees: 11-50. Known funding: $18M+ reported. Notable products: Quantum software compiler platform.
Singapore
HQS Quantum Simulations
Software
HQS Quantum Simulations develops software for quantum chemistry and materials simulation. Founded: 2017. Estimated employees: 11-50. Known funding: Unknown. Notable products: HQS Noise App, quantum simulation tools.
Karlsruhe, Germany
IBM Quantum
Hardware
IBM's quantum division develops superconducting quantum processors, systems, software, and cloud access through IBM Quantum Platform. Founded: 2016. Estimated employees: 1000+. Known funding: Parent company funded. Notable products: IBM Quantum Platform, IBM Quantum System Two, Qiskit.
Yorktown Heights, New York, USA
ID Quantique
Quantum Security
ID Quantique develops quantum key distribution systems, quantum random number generators, and quantum-safe security products. Founded: 2001. Estimated employees: 51-200. Known funding: Unknown. Notable products: Cerberis XG, Quantis QRNG.
Geneva, Switzerland
Infleqtion
Quantum Sensors
Infleqtion develops cold-atom quantum computers, quantum sensors, clocks, and RF systems. Founded: 2007. Estimated employees: 201-500. Known funding: $200M+ reported. Notable products: Tiqker, Sqorpius, Oqtant.
Boulder, Colorado, USA
IonQ
Hardware
IonQ builds trapped-ion quantum computers available through cloud platforms and direct enterprise access. Founded: 2015. Estimated employees: 201-500. Known funding: Public company. Notable products: IonQ Forte, IonQ Aria, IonQ Forte Enterprise.
College Park, Maryland, USA
IQM Quantum Computers
Hardware
IQM develops superconducting quantum processors and on-premises quantum computers for research centers, enterprises, HPC centers, and national laboratories. Founded in 2018 and headquartered in Espoo, Finland, IQM completed a business combination with Real Asset Acquisition Corp. in July 2026, with ADSs trading on Nasdaq under IQMX.
Espoo, Finland
ISARA
Quantum Security
ISARA provides crypto-agility and post-quantum cryptography solutions for enterprise and government systems. Founded: 2015. Estimated employees: 11-50. Known funding: Unknown. Notable products: ISARA Advance, Catalyst Agile Digital Trust.
Waterloo, Ontario, Canada
Japan Moonshot Goal 6
Government Program
Japan's Moonshot Goal 6 funds research toward fault-tolerant universal quantum computing. Founded: 2020. Estimated employees: Unknown. Known funding: Government funded. Notable products: Moonshot Goal 6.
Tokyo, Japan
KEEQuant
Quantum Networking
KEEQuant develops QKD systems and quantum-secure communication technologies. Founded: 2020. Estimated employees: 11-50. Known funding: Unknown. Notable products: QKD hardware.
Fürth, Germany