Companies
Quantum organization directory
Compare published quantum companies, labs, investors, and ecosystem organizations by category, stage, headquarters, focus area, and verified source trail.
QuantWare
Hardware
QuantWare supplies superconducting quantum processing units and quantum control hardware to quantum builders. Founded: 2021. Estimated employees: 51-200. Known funding: $178M+ reported. Notable products: Contralto QPU, Crescendo, Tenor.
Delft, Netherlands
Qubit Pharmaceuticals
Software
Qubit Pharmaceuticals develops physics-based and quantum-enabled methods for drug discovery. Founded: 2020. Estimated employees: 11-50. Known funding: Unknown. Notable products: Atlas platform.
Paris, France
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
QuintessenceLabs
Quantum Security
QuintessenceLabs develops quantum-enhanced key management and random number generation systems. Founded: 2008. Estimated employees: 11-50. Known funding: Unknown. Notable products: qStream, qCrypt, Trusted Security Foundation.
Canberra, Australia
QunaSys
Software
QunaSys develops quantum software for chemistry, materials, and industrial research. Founded: 2018. Estimated employees: 11-50. Known funding: Unknown. Notable products: Qamuy, QURI Parts.
Tokyo, Japan
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
QuTech
Research Lab
QuTech is a collaboration between Delft University of Technology and TNO focused on quantum computing and quantum internet research. Founded: 2014. Estimated employees: 201-500. Known funding: Publicly funded. Notable products: Quantum Inspire, quantum internet research.
Delft, Netherlands
QWorld
Other
QWorld is a global nonprofit supporting quantum education, workshops, and outreach. Founded: 2018. Estimated employees: 1-10. Known funding: Volunteer and grant funded. Notable products: QBronze, QSilver, QWorld workshops.
Global
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
RIKEN Center for Quantum Computing
Research Lab
RIKEN Center for Quantum Computing conducts research on quantum computing hardware, software, algorithms, and theory. Founded: 2021. Estimated employees: 201-500. Known funding: Government funded. Notable products: RIKEN quantum computer program.
Wako, Saitama, Japan
Riverlane
Software
Riverlane builds quantum error correction software and control systems for fault-tolerant quantum computers. Founded: 2016. Estimated employees: 51-200. Known funding: $120M+ reported. Notable products: Deltaflow, quantum error correction stack.
Cambridge, England, UK
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
SBQuantum
Quantum Sensors
SBQuantum develops diamond-based quantum magnetometers for geophysics, navigation, and defense applications. Founded: 2017. Estimated employees: 11-50. Known funding: Unknown. Notable products: Diamond quantum magnetometers.
Sherbrooke, Quebec, Canada
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
SemiQon
Hardware
SemiQon develops cryogenic CMOS and silicon-based quantum processor technology. Founded: 2023. Estimated employees: 11-50. Known funding: Unknown. Notable products: Silicon quantum processor chips.
Espoo, Finland
Silicon Quantum Computing
Hardware
SQC develops atomically precise silicon quantum processors based on Australian quantum research. Founded: 2017. Estimated employees: 51-200. Known funding: A$130M+ reported. Notable products: Silicon quantum processor program.
Sydney, New South Wales, Australia
Singapore National Quantum Strategy
Government Program
Singapore supports quantum research and technology translation through national quantum centers and network initiatives. Founded: Unknown. Estimated employees: Unknown. Known funding: Government funded. Notable products: National Quantum-Safe Network, CQT programs.
Singapore
Single Quantum
Quantum Networking
Single Quantum develops superconducting nanowire single-photon detectors used in quantum communications and quantum networking. Founded: 2012. Estimated employees: 11-50. Known funding: Unknown. Notable products: Eos, single-photon detector systems.
Delft, Netherlands
SpeQtral
Quantum Networking
SpeQtral develops satellite-based quantum key distribution and quantum communications technology. Founded: 2017. Estimated employees: 11-50. Known funding: Unknown. Notable products: Satellite QKD systems.
Singapore
SpinQ Technology
Hardware
SpinQ develops compact NMR quantum computers and educational quantum computing systems. Founded: 2018. Estimated employees: 51-200. Known funding: CNY600M+ reported. Notable products: Gemini, Triangulum, NMR quantum computers.
Shenzhen, Guangdong, China
Stanford Q-FARM
University
Stanford Q-FARM coordinates quantum science and engineering research across Stanford. Founded: 2018. Estimated employees: Unknown. Known funding: University funded. Notable products: Q-FARM research programs.
Stanford, California, USA