Quantum Index covers a wide range of companies involved in quantum computing and related quantum technologies. Select a company name below to view all articles related to that company.

Companies

  • Alice & Bob — Superconducting Quantum Computing
  • Atom Computing — Neutral-Atom Quantum Computing
  • Bluefors — Cryogenic Systems and Dilution Refrigerators
  • Classiq — Quantum Software and Algorithms (Acquisition by Intel announced in 2026; pending completion)
  • D-Wave — Quantum Annealing and Superconducting Gate-Based Quantum Computing
  • Diraq — Silicon Spin Qubit Quantum Computing
  • Fixstars Amplify — Optimization and Quantum Software (Wholly owned subsidiary of Fixstars)
  • Fujitsu — Quantum Computing
  • Google Quantum AI — Superconducting Quantum Computing (Google’s quantum research division)
  • IBM Quantum — Superconducting Quantum Computing (IBM’s quantum computing business)
  • Infleqtion — Neutral-Atom Quantum Computing and Quantum Sensing
  • IonQ — Trapped-Ion Quantum Computing
  • IQM — Superconducting Quantum Computing
  • JIJ — Optimization and Quantum Software
  • Microsoft Quantum — Topological Quantum Computing (Microsoft’s quantum computing business)
  • Nord Quantique — Superconducting and Bosonic Quantum Computing
  • OptQC — Photonic Quantum Computing
  • OQC — Superconducting Quantum Computing
  • ORCA Computing — Photonic Quantum Computing
  • Oratomic — Neutral-Atom Quantum Computing
  • Oxford Ionics — Trapped-Ion Quantum Computing (Wholly owned subsidiary of IonQ since 2025)
  • Pasqal — Neutral-Atom Quantum Computing
  • Phasecraft — Quantum Algorithms and Software
  • Photonic Inc. — Photonic and Spin-Based Quantum Computing
  • planqc — Neutral-Atom Quantum Computing
  • PsiQuantum — Photonic Quantum Computing
  • Q-CTRL — Quantum Control and Software
  • Qblox — Quantum Control and Readout Electronics
  • Quantinuum — Trapped-Ion Quantum Computing (Publicly listed in 2026; Honeywell holds a 48% stake)
  • Quantum Brilliance — Diamond NV-Center Quantum Computing
  • Quantum Circuits — Superconducting Quantum Computing (Part of D-Wave since 2026)
  • Quantum Computing Inc. — Optical Optimization Machines and Photonics
  • Quantum Machines — Quantum Control Systems and Software
  • QuantWare — Superconducting Quantum Processors
  • QUDORA — Trapped-Ion Quantum Computing
  • QuEL — Quantum Control Electronics
  • Quemix — Quantum Algorithms and Software
  • QuEra — Neutral-Atom Quantum Computing
  • QunaSys — Quantum Algorithms and Software
  • Rigetti — Superconducting Quantum Computing
  • Riverlane — Quantum Error Correction
  • SEEQC — Superconducting Quantum Computing and Cryogenic Control ICs
  • Silicon Quantum Computing — Silicon Spin Qubit Quantum Computing (Backed by the Australian government, UNSW, Telstra, CBA, and others)
  • Strangeworks — Quantum Computing Software
  • Universal Quantum — Trapped-Ion Quantum Computing
  • Xanadu — Photonic Quantum Computing
  • Yaqumo — Neutral-Atom Quantum Computing