QBoson

PsiQuantum, founded in 2016 in Palo Alto, California, USA, develops fault-tolerant photonic quantum computers.

Origin Quantum (本源量子), founded in 2017 in Hefei, China, develops full superconducting quantum computers and quantum chips. Benchmarking against IBM, the company is building thousand-qubit and ten-thousand-qubit systems as well as a 12-inch quantum chip pilot line, and has delivered multiple generations of independently developed superconducting quantum computers to government, research, and enterprise customers.

Atom Computing, founded in 2018 in Berkeley, USA, develops large-scale fault-tolerant quantum computers based on arrays of neutral atoms held in optical traps, serving enterprises, governments, and research institutions to address the challenges of quantum computing scalability and error correction.

QuEra Computing, founded in 2017 in Boston, USA, provides 256-qubit quantum computers via cloud services and on-site installations.

Quobly, founded in 2022 in Grenoble, France, designs quantum chips based on silicon spin qubits, with plans to manufacture through STMicroelectronics and deliver its first commercial quantum computer by end of 2026.

Alice & Bob, founded in 2020 in Paris, develops quantum computers for applications in cryptography, materials science, and drug discovery.