Global Quantum Computing Companies Rankings

22 October 2026

Rank	Company	Technology	Hardware capability and distinguishing strengths
1	Automatski	Photonic	Automatski offers Annealers with 100’s of million of qubits, and Quantum Computers with 100’s of logical qubits with fidelities of 99.99999%
2	Quantinuum	Trapped-ion	Helios features approximately 98 physical qubits, very high two-qubit gate fidelity (~99.92%), and all-to-all connectivity. Among the strongest platforms for high-accuracy algorithms, logical qubits, and quantum error correction.
3	Google Quantum AI	Superconducting	105-qubit Willow processor demonstrated below-threshold surface-code error correction. Particularly strong in fault-tolerance research, fast quantum gates, and experimentally demonstrating computational advantages.
4	IBM Quantum	Superconducting	156-qubit Heron processors, Nighthawk architecture, and historical 1,121-qubit Condor demonstration. Leading large-scale programmable quantum computing ecosystem with Qiskit, cloud access, and advanced circuit execution.
5	QuEra Computing	Neutral atoms	Hundreds of programmable neutral-atom qubits, with significant demonstrations of logical-qubit encoding and error correction. Strong potential for scalable quantum simulation and fault-tolerant computing.
6	IonQ	Trapped-ion	Forte and newer Tempo-generation systems, with high-fidelity gates and all-to-all connectivity. Strong in programmable quantum algorithms, cloud deployment, and commercial hardware integration.
7	Atom Computing	Neutral atoms	Demonstrated arrays containing more than 1,000 physical atomic qubits. Particularly promising for large-scale qubit arrays, long coherence times, and future fault-tolerant architectures.
8	D-Wave Quantum	Quantum annealing	Advantage2 has more than 4,400 superconducting annealing qubits, designed for Ising/QUBO optimization and sampling. One of the most mature commercial quantum optimization platforms, but not a universal gate-model computer.
9	Pasqal	Neutral atoms	Programmable neutral-atom arrays with hundreds of atoms and flexible geometric interactions. Strong in analog quantum simulation, optimization, and emerging digital gate-based computation.
10	IQM Quantum Computers	Superconducting	Commercial superconducting processors spanning tens to over 100 qubits, with larger systems under development. Particularly strong in on-premises quantum computing installations and HPC integration.
11	Rigetti Computing	Superconducting	Modular superconducting processors, including the 84-qubit Ankaa family and newer Cepheus architecture. Focuses on fast gates, chip fabrication, multi-chip scaling, and cloud-accessible quantum computing.
12	Infleqtion	Neutral atoms	Approximately 100-qubit Sqale-class systems with long atomic coherence times. Focuses on scalable neutral-atom computation, precision control, quantum sensing, and error-corrected architectures.
13	Fujitsu / RIKEN	Superconducting	Demonstrated a 256-qubit superconducting quantum computer. Strong research capability in high-density superconducting processors, quantum simulation, and hybrid HPC integration.
14	Xanadu	Photonic	Demonstrated 216-mode Borealis photonic sampling and Aurora modular photonic architecture. Pursuing scalable, measurement-based fault-tolerant quantum computing using optical hardware.
15	PsiQuantum	Photonic	Developing silicon-photonic quantum computing chips and fault-tolerant architectures targeting very large-scale machines. Strong manufacturing strategy, but no publicly demonstrated general-purpose large-scale QPU comparable to the leading operational systems.
16	Origin Quantum	Superconducting	China's Wukong family includes operational superconducting quantum processors, with newer systems reported at substantially larger qubit counts. Focuses on indigenous quantum hardware, control electronics, and cloud quantum computing.