Rankings

PsiQuantum

PsiQuantum lands $179 million DARPA quantum computing deal

Quantinuum

Trapped-ion systems and quantum software; Honeywell-backed category leader.

IQM Quantum Computers

ORNL Deploys New IQM Quantum Computer

SandboxAQ

AI + quantum-safe security and simulation; Alphabet spin-out.

IonQ

Trapped-ion quantum computers available over major cloud platforms.

Pasqal

Neutral-atom quantum processors for computation and simulation.

Alice & Bob

Cat-qubit architecture aiming at hardware-efficient fault tolerance.

Xanadu

Photonic quantum computing and the PennyLane open-source ecosystem.

Quandela

Photonic quantum computers built on single-photon sources.

Atom Computing

Neutral-atom systems; first to exceed 1,000 physical qubits.

Oxford Quantum Circuits

Superconducting quantum computers delivered as a cloud service.

Sparrow Quantum

Deterministic single-photon sources spun out of the Niels Bohr Institute.

Terra Quantum

Full-stack quantum software, algorithms and quantum-as-a-service.

Rigetti Computing

Full-stack superconducting quantum computing; public since 2022.

Multiverse Computing

Quantum and quantum-inspired software for finance and model compression.

QuiX Quantum

Photonic quantum processors based on integrated photonic chips.

D-Wave Quantum

Research: Proposal for Estimating the Energy Gap of the Transverse-Field Ising Hamiltonian Using a D-Wave Quantum Annealer

ORCA Computing

Research: Benchmarking the ORCA PT-2 Boson Sampler using Minimum Dominating Set Problems

Algorithmiq

Quantum algorithms for drug discovery and life sciences.

planqc

Neutral-atom quantum computers based on optical lattices.

Qblox

Scalable qubit control and readout electronics for quantum labs.

Chipiron

Quantum sensing for portable, ultra-low-field MRI.

SEEQC

SEEQC Files for Nasdaq IPO in Quantum Chip Push

Quantum Brilliance

Room-temperature diamond-based quantum accelerators.

Kvantify

Quantum and HPC software for computational chemistry and finance.

Kipu Quantum

Application-specific quantum algorithms and compilation.

Molecular Quantum Solutions

Quantum-powered platform for molecular simulation and materials.

Arqit Quantum

Symmetric-key quantum-safe encryption delivered as a service.

Nordic Quantum Computing Group

Norway's first quantum computing company — algorithms and quantum finance.

Quantum Computing Inc.

Publicly listed quantum company (QUBT · NASDAQ).