All Industries

Top Quantum Computing Companies

66 Quantum Computing companies, sorted by total funding raised.

Nu Quantum

Quantum communications technology company developing quantum networking infrastructure.

Cambridge, United Kingdom51–200Deep Tech, Quantum Computing
Series A·$60.0M·Dec 2025
planqc

planQC builds neutral-atom quantum computers using optical lattices, spun out of the Max Planck I...

Garching, Germany11–50Deep Tech, Quantum Computing
Series A·$59.4M·Jul 2024
Qutwo

Finnish quantum AI startup described as the Palantir of quantum computing.

Helsinki, Finland1–10Artificial Intelligence, Quantum Computing
Angel·$56.0M·May 2026
Algorithmiq

Quantum computing software for molecular simulation and drug discovery.

Helsinki, Finland11–50Biotech, Quantum Computing
Venture Unknown·$36.0M·May 2026
Kvantify

Quantum computing optimization software

Copenhagen, Denmark51–200Quantum Computing
Venture Unknown·$32.6M·Mar 2026
D-Wave Systems

D-Wave is the world's first commercial quantum computing company, delivering quantum systems, sof...

Palo Alto, United States201–500Quantum Computing
Venture Unknown·$30.0M·Oct 2012
Qedma

Israeli quantum computing software startup building error suppression and mitigation tools to imp...

Tel Aviv, Israel11–50Deep Tech, Quantum Computing
Venture Unknown·$26.0M·Jul 2025
QuintessenceLabs

Quantum-safe cryptography and key management solutions.

Canberra, Australia51–200Cybersecurity, Quantum Computing
Series B·$25.0M·Oct 2021
Q-Factor

Israeli quantum computing startup developing scalable quantum technology.

Rehovot, Israel1–10Quantum Computing
Seed·$24.0M·Apr 2026
Diraq

Full-stack quantum computing company building utility-scale quantum computers using modified sili...

Sydney, Australia11–50Quantum Computing
Series A·$23.0M·Jun 2023
Horizon Quantum ComputingIPO

Builds developer tools and an IDE to compile and deploy quantum applications from classical langu...

Singapore, Singapore11–50Developer Tools, Quantum Computing
Series A·$20.1M·Mar 2023
QuiX Quantum

Photonic quantum computing hardware and solutions platform.

Enschede, Netherlands11–50Quantum Computing
Series A·$16.5M·Jul 2025
Aliro

Quantum networking company building entanglement-based quantum network design, simulation, and or...

Boston, United States11–50Cybersecurity, Infrastructure
Seed·$15.0M·Feb 2026
Zapata AI

Quantum software platform spun out of Harvard, providing tools to develop, test, and deploy quant...

Boston, United States11–50Artificial Intelligence, Quantum Computing
Funding undisclosed
memQ

Quantum memory hardware startup.

Chicago, United States1–10Quantum Computing
Series A·$12.0M·Apr 2026
Waterloo Quantum

Quantum computing startup from University of Waterloo.

Waterloo, Canada1–10Quantum Computing
Series A·$10.7M·Apr 2026
Qunova Computing

Quantum computing company developing scalable quantum processors.

Daejeon, United States11–50Quantum Computing
Series A·$10.0M·Aug 2025
BlueQubit

Quantum computing software platform enabling developers and enterprises to build, simulate, and r...

Los Angeles, United States11–50Quantum Computing
Seed·$10.0M·Dec 2024
Cerca Magnetics

Wearable brain imaging systems powered by quantum sensing.

Nottingham, United Kingdom1–10Healthcare, Medical Devices
Seed·$9.2M·Apr 2026
CavilinQ

Quantum interconnect hardware startup.

Cambridge, United States1–10Quantum Computing, Deep Tech
Seed·$8.8M·Apr 2026
QphoX

Quantum modem technology enabling quantum internet connectivity.

Delft, NetherlandsQuantum Computing
Venture Unknown·$8.8M·Oct 2023
BosonQ Psi

Enabling Simulations for Quantum Paradigm

Phoenix, United States11–50Smart Cities, Aerospace
Seed·$8.0M·Jul 2025
Iceberg Quantum

Designing the next generation of fault-tolerant quantum computing architectures

Sydney, Australia1–10Quantum Computing, Deep Tech
Seed·$8.0M·Feb 2026
QB
Quantum Bridge

Pioneer in Distributed Symmetric Key Exchange technology providing quantum-safe cybersecurity pro...

Toronto, Canada1–10Cybersecurity, Quantum Computing
Grant·$6.4M·Jan 2026
Quanmatic

Quanmatic is an information and technology company that provides algorithms development and solut...

Tokyo, JapanInsurtech, Deep Tech
Series A·$5.3M·Sep 2024