All Industries

Top Quantum Computing Companies

11 Quantum Computing companies, sorted by total funding raised.

S
SandboxAQ
Palo Alto, United StatesArtificial Intelligence, Quantum Computing
Funding undisclosed
Q
Quantinuum
Broomfield, United StatesQuantum Computing
Funding undisclosed
X
Xanadu
IPO

Photonic quantum computing company building quantum computers using light-based technology, with ...

Toronto, CanadaDeep Tech, Quantum Computing
Series C·$241.0M·Nov 2022
C
Classiq

Classiq develops software for quantum algorithms. The company’s software technology helps teams m...

Tel Aviv, IsraelDeveloper Tools, Quantum Computing
Funding undisclosed
RC
Rigetti Computing
IPO

Quantum coherent supercomputing.

Berkeley, United States51–200Industrials, Quantum Computing
Series C·$105.5M·Aug 2020
AC
Atom Computing

Quantum computing company building highly scalable, gate-based quantum computers using arrays of ...

Berkeley, United StatesDeep Tech, Hardware
Funding undisclosed
CQ
Conductor Quantum

Quantum computers on silicon chips using AI.

San Francisco, United States1–10Artificial Intelligence, Deep Tech
Funding undisclosed
A
AuroraQ
Closed

Building the first practical, integrated quantum computer.

Waterloo, Canada1–10Industrials, Quantum Computing
Funding undisclosed
MA
Menten AI

Menten AI designs peptide and protein therapeutics using quantum…

San Francisco, United States1–10Drug Discovery, Healthcare
Funding undisclosed
Q
Quanmatic

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

Tokyo, JapanInsurtech, Deep Tech
Funding undisclosed
P
PsiQuantum

Quantum computing company developing the world's first commercially useful, fault-tolerant quantu...

Palo Alto, United StatesQuantum Computing
Series E·Sep 2025