Companies
Quantum organization directory
Compare published quantum companies, labs, investors, and ecosystem organizations by category, stage, headquarters, focus area, and verified source trail.
MIT Lincoln Laboratory Quantum Information and Integrated Nanosystems
Research Lab
MIT Lincoln Laboratory develops quantum information, integrated nanosystems, and sensing technologies for national security applications. Founded: 1951. Estimated employees: 1000+. Known funding: Government funded. Notable products: Quantum information and integrated nanosystems programs.
Lexington, Massachusetts, USA
National Institute of Standards and Technology
Research Lab
NIST conducts quantum information science, metrology, cryptography, standards, and quantum networking research. Founded: 1901. Estimated employees: 1000+. Known funding: Government funded. Notable products: Quantum information science programs, PQC standards.
Gaithersburg, Maryland, USA
NSF Quantum Leap Challenge Institutes
Government Program
NSF's QLCI program funds large-scale quantum information science and engineering institutes. Founded: 2020. Estimated employees: Unknown. Known funding: Government funded. Notable products: QLCI institutes.
Alexandria, Virginia, USA
NVIDIA Quantum
Software
NVIDIA Quantum develops software and accelerated-computing tools for hybrid quantum-classical workflows. NVIDIA Ising provides open AI models for quantum processor calibration and quantum error-correction decoding.
Santa Clara, California, USA
Oak Ridge National Laboratory
Research Lab
ORNL conducts quantum computing, networking, sensing, materials, and quantum science research. Founded: 1943. Estimated employees: 1000+. Known funding: Government funded. Notable products: Quantum Computing User Program, Quantum Science Center.
Oak Ridge, Tennessee, USA
Princeton Quantum Initiative
University
Princeton Quantum Initiative coordinates research in quantum materials, computing, devices, and information science. Founded: Unknown. Estimated employees: Unknown. Known funding: University funded. Notable products: Princeton quantum research programs.
Princeton, New Jersey, USA
PsiQuantum
Hardware
PsiQuantum is developing a fault-tolerant photonic quantum computer using silicon photonics and cryogenic infrastructure. Founded: 2016. Estimated employees: 201-500. Known funding: $1B+ reported. Notable products: Photonic fault-tolerant quantum computer program.
Palo Alto, California, USA
qBraid
Software
qBraid provides a cloud-based platform for quantum software development, education, and hardware access. Founded: 2020. Estimated employees: 11-50. Known funding: Unknown. Notable products: qBraid Lab, qBraid SDK.
Chicago, Illinois, USA
QC Ware
Software
QC Ware develops quantum algorithms, software, and applications for optimization, chemistry, and machine learning. Founded: 2014. Estimated employees: 51-200. Known funding: Unknown. Notable products: Forge, Promethium.
Palo Alto, California, USA
QED-C
Other
The Quantum Economic Development Consortium supports the U.S. quantum industry ecosystem and commercialization. Founded: 2018. Estimated employees: 11-50. Known funding: Member funded. Notable products: Quantum industry consortium programs.
Washington, D.C., USA
Qolab
Hardware
Qolab develops superconducting quantum computing hardware with a focus on semiconductor manufacturing discipline and utility-scale systems. The company announced $54.2 million in Series B financing and related commitments led by UC Investments in July 2026.
Santa Barbara, California, USA
Qrypt
Quantum Security
Qrypt provides quantum-secure encryption and key generation technology using quantum randomness and secure key delivery. Founded: 2017. Estimated employees: 11-50. Known funding: Unknown. Notable products: Quantum-secure encryption platform.
New York, New York, USA
Quantum Circuits Inc.
Hardware
Quantum Circuits builds superconducting quantum computers using modular, error-detecting architecture. Founded: 2015. Estimated employees: 51-200. Known funding: $80M+ reported. Notable products: Aquila quantum computing platform.
New Haven, Connecticut, USA
Quantum Computing Report
Other
Quantum Computing Report tracks quantum computing companies, investments, roadmaps, and industry developments. Founded: 2015. Estimated employees: 1-10. Known funding: Unknown. Notable products: Quantum Computing Report intelligence database.
Unknown, USA
Quantum Rings
Software
Quantum Rings develops quantum simulation and software tools for developers and organizations. Founded: Unknown. Estimated employees: 1-10. Known funding: Unknown. Notable products: Quantum Rings SDK.
Unknown, USA
Quantum Xchange
Quantum Security
Quantum Xchange develops crypto-agile and quantum-safe network security products. Founded: 2018. Estimated employees: 11-50. Known funding: Unknown. Notable products: Phio TX, quantum-safe network security.
Bethesda, Maryland, USA
QuEra Computing
Hardware
QuEra develops neutral-atom quantum computers and offers cloud access through major platforms. Founded: 2018. Estimated employees: 51-200. Known funding: $230M+ reported. Notable products: Aquila, neutral-atom quantum processors.
Boston, Massachusetts, USA
Qunnect
Quantum Networking
Qunnect develops hardware for entanglement distribution, quantum memories, and metropolitan quantum networks. Founded: 2017. Estimated employees: 11-50. Known funding: $8M+ reported. Notable products: Qu-Val, GothamQ network components.
Brooklyn, New York, USA
QuSecure
Quantum Security
QuSecure develops post-quantum cybersecurity orchestration and cryptographic agility products. Founded: 2019. Estimated employees: 11-50. Known funding: $12M+ reported. Notable products: QuProtect.
San Mateo, California, USA
Rigetti Computing
Hardware
Rigetti develops superconducting quantum processors and full-stack quantum computing systems. Founded: 2013. Estimated employees: 51-200. Known funding: Public company. Notable products: Ankaa processors, QCS platform.
Berkeley, California, USA
Rydberg Technologies
Quantum Sensors
Rydberg Technologies develops atomic RF sensors and quantum technologies based on Rydberg atoms. Founded: 2015. Estimated employees: 11-50. Known funding: Unknown. Notable products: Atomic RF field sensors.
Ann Arbor, Michigan, USA
SandboxAQ
Quantum Security
SandboxAQ develops post-quantum cryptography, cybersecurity, simulation, and AI products. Founded: 2022. Estimated employees: 501-1000. Known funding: $950M+ reported. Notable products: AQNav, Security Suite, Large Quantitative Models.
Palo Alto, California, USA
Sandia National Laboratories Quantum Information Science
Research Lab
Sandia conducts quantum information science, quantum computing, sensing, and microelectronics research. Founded: 1949. Estimated employees: 1000+. Known funding: Government funded. Notable products: MESA quantum fabrication capabilities.
Albuquerque, New Mexico, USA
SEEQC
Hardware
SEEQC develops superconducting quantum processors integrated with energy-efficient cryogenic control chips. Founded: 2018. Estimated employees: 51-200. Known funding: Unknown. Notable products: Single Flux Quantum control chips, SEEQC QPU.
Elmsford, New York, USA