Quantum Brain

D-Wave Systems

QBTS

Quantum annealing pioneer. Advantage system: 5,000+ qubits. Also developing gate-based.

SuperconductingCloud AccessCanadaEst. 1999~200 employees

$2B

Market cap

Website

Superconducting Competitors

Amazon BraketCloud Access

Cloud platform hosting IonQ, Rigetti, QuEra hardware. AWS Center for Quantum Computing.

$2.0T mkt cap

IBM QuantumCloud Access

1,121-qubit Condor processor. Largest cloud quantum fleet. Qiskit ecosystem.

$220B mkt cap

Rigetti ComputingCloud Access

Vertically integrated: builds own chips and offers cloud access via Rigetti QCS.

$3B mkt cap

Classiq TechnologiesCloud Access

Quantum software platform for designing, optimizing, and executing quantum circuits at scale.

Multiverse ComputingCloud Access

Quantum and quantum-inspired software for financial services, energy, manufacturing, and life sciences.

Oxford Quantum CircuitsCloud Access

Coaxmon architecture. Cloud quantum computing platform available in EU.

$100M last round

Origin QuantumCloud Access

China's leading quantum computing company. 72-qubit Wukong processor.

$150M last round

Google Quantum AIPrototype

Willow chip achieved below-threshold error correction. Pursuing fault-tolerant quantum computing.

$2.1T mkt cap

Quantum MachinesPrototype

Builds quantum orchestration platform (OPX+) and quantum control hardware used by over half of all quantum computing companies.

QedmaPrototype

Quantum error mitigation software that maximizes computational power of current quantum hardware.

Alice & BobPrototype

Cat qubits with built-in error protection. Targeting fault tolerance with fewer physical qubits.

$30M last round

SandboxAQPrototype

Enterprise SaaS company combining AI and quantum tech, spun out of Alphabet. Focuses on post-quantum cryptography and large-scale simulations.

IQM Quantum ComputersPrototype

European leader. Building 150-qubit systems. On-premise quantum computers for data centers.

$128M last round

SpinQ TechnologyPrototype

Industrial superconducting quantum computing company based in China.

Microsoft QuantumResearch

Majorana-based topological qubits. Azure Quantum cloud platform (hosts other hardware).

$3.1T mkt cap

Nord QuantiqueResearch

Bosonic error correction with microwave cavities.

$9M last round

Quantum Intelligence

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