IBM Quantum
Heron/Condor processors + Qiskit
Quantum Computing
The race to fault-tolerance: hardware modalities, the software stack, and the post-quantum security layer.
23 companies · 6 segments
Superconducting Qubits
Google Quantum AI
Willow chip; error-correction milestones
Rigetti
Modular superconducting systems (NASDAQ: RGTI)
IQM
European superconducting QC
Trapped Ions
IonQ
Trapped-ion systems (NYSE: IONQ)
Quantinuum
Highest reported quantum volume
Oxford Ionics
Electronic-controlled ion qubits
Neutral Atoms & Photonics
QuEra
Neutral-atom analog & gate-based
Atom Computing
Cs/Sr neutral atoms; Microsoft partnership
Pasqal
Neutral-atom QC (France)
PsiQuantum
Photonic, million-qubit ambition
Xanadu
Photonic continuous-variable QC
Topological & Spin
Microsoft Azure Quantum
Majorana topological qubits
D-Wave
Quantum annealing (commercial since 2011)
SiQure / Quantum Motion
Silicon spin qubits
Infleqtion
Cold-atom quantum systems
Quantum Software & Algorithms
Classiq
Quantum circuit synthesis platform
Zapata AI
Quantum-inspired enterprise AI
QC Ware
Algorithms for finance & chemistry
Multiverse Computing
Quantum optimization for industry
Post-Quantum Cryptography
SandboxAQ
PQC + AI security (Alphabet spinout)
PQShield
NIST PQC standards implementations
ID Quantique
Quantum key distribution networks