QuantLeaks
Sign inGet started

Company database

Showing 25–30 of 30 tracked quantum companies · updated weekly

↓ Export CSV
CompanyScore30dTrackStageInvestTotal raisedHQ
Sparrow Quantum
Deterministic single-photon sources spun out of the Niels Bohr Institute.
45▼ 7.5PhotonicSeries A Private€24mCopenhagen
QuiX Quantum
Photonic quantum processors based on integrated photonic chips.
45▼ 3.5PhotonicSeries A Private€30mEnschede
Quantum Computing Inc.
Publicly listed quantum company (QUBT · NASDAQ).
45– 0.0PhotonicPublic Listed · QUBT—
Oxford Quantum Circuits
Superconducting quantum computers delivered as a cloud service.
45▼ 8.5SuperconductingSeries B Private€130mReading
SEEQC
Digital chip-based superconducting quantum computing.
45– 0.0SuperconductingSeries A Private€60mElmsford
Rigetti Computing
Full-stack superconducting quantum computing; public since 2022.
45▼ 5.5SuperconductingPublic Listed · RGTI€350mBerkeley
45
Sparrow Quantum▼ 7.5
Deterministic single-photon sources spun out of the Niels Bohr Institute.
Photonic€24m Private
45
QuiX Quantum▼ 3.5
Photonic quantum processors based on integrated photonic chips.
Photonic€30m Private
45
Quantum Computing Inc.– 0.0
Publicly listed quantum company (QUBT · NASDAQ).
Photonic— Listed · QUBT
45
Oxford Quantum Circuits▼ 8.5
Superconducting quantum computers delivered as a cloud service.
Superconducting€130m Private
45
SEEQC– 0.0
Digital chip-based superconducting quantum computing.
Superconducting€60m Private
45
Rigetti Computing▼ 5.5
Full-stack superconducting quantum computing; public since 2022.
Superconducting€350m Listed · RGTI