Every company mentioned in our daily digests, in one place. Each entry links to the company’s official site. This directory grows automatically as new companies appear in our coverage — last updated July 28, 2026. Investment funds, universities, and government agencies are covered separately and are not listed here.
A
Aliro Technologies — quantum networking software company; its Orchestrator platform ran a live entanglement-based QKD demo on Cisco production routers.
AMD — semiconductor and computing company, industry partner in the DOE Quantum Science Center.
Amazon Web Services (AWS) — Amazon’s cloud division; co-authored a quantum-classical co-location performance model with NVIDIA, LBNL and NASA.
Anchorage Digital — crypto-native digital asset platform; founding member of the Bitcoin Security Consortium.
Archer Materials — Australian (ASX: AXE) developer of the carbon-based 12CQ quantum chip; signed a sovereign quantum-cloud agreement with IonQ.
Arq — Barcelona-based quantum-internet startup building multiplexed quantum repeaters from rare-earth-doped crystal memories. (No independent company site found yet; linked to its Quantum Internet Alliance profile.)
AT&T Business — telecom carrier; launched a Quantum-Resilient SASE fabric with Palo Alto Networks.
B
Block — fintech company (Cash App, Square); founding member of the Bitcoin Security Consortium.
Blockstream — Bitcoin infrastructure company; founding member of the Bitcoin Security Consortium.
Boeing — aerospace manufacturer; co-owner of HRL Laboratories, which IBM is acquiring.
BQP (BosonQ Psi) — quantum-assisted simulation software company; its Federal unit won a SpaceWERX contract for space domain awareness.
BTQ Technologies — vertically integrated quantum-security company spanning post-quantum cryptography and, via its QPerfect acquisition, neutral-atom computing software.
C
Cisco — networking hardware company; ran a live entanglement-based QKD demo on its production 8000 Series routers with Aliro and zerothird.
Coinbase — crypto exchange; founding member of the Bitcoin Security Consortium.
D
D-Wave Quantum — quantum annealing pioneer and the first commercial quantum computing vendor; moved its stock listing from the NYSE to Nasdaq (ticker QBTS) in July 2026.
E
Equal1 — quantum technology company that built ESA’s first quantum computer, the 6-qubit silicon-spin system Bell-1.
F
Fidelity Digital Assets — Fidelity’s digital-asset arm; founding member of the Bitcoin Security Consortium.
G
Galaxy — digital-asset financial services firm; launched the Bitcoin Quantum Readiness Initiative and is a founding member of the Bitcoin Security Consortium.
General Motors — automaker; co-owner of HRL Laboratories, which IBM is acquiring.
H
Hitachi — Japanese industrial conglomerate; selected by NEDO alongside Intel and AIST to scale silicon spin-qubit quantum processors.
HRL Laboratories — research-and-development lab jointly owned by Boeing and General Motors; being acquired by IBM for its silicon-spin qubit expertise.
I
IBM — superconducting-qubit quantum computing pioneer and cloud/software provider (Qiskit); a recurring presence across hardware, acquisitions and research partnerships.
Infleqtion — neutral-atom quantum computing company deploying its fault-tolerant Sqale system in Illinois.
Intel — semiconductor manufacturer; partnering with Hitachi and AIST on silicon spin-qubit scaling via its 18A process technology.
IonQ — trapped-ion quantum computing company; signed a sovereign quantum-cloud deal with Archer Materials in Australia.
IQM — Finnish superconducting-qubit quantum computer manufacturer; DOE Quantum Science Center industry partner.
M
Maybell Quantum — cryogenics company deploying dilution refrigerators at New Mexico’s Roadrunner Quantum Lab.
MegazoneCloud — South Korean managed cloud provider; partnered with Pasqal to bring neutral-atom quantum computing to Korean enterprises.
Microsoft — cloud and quantum computing company; one of only two firms, alongside PsiQuantum, to reach DARPA’s Quantum Benchmarking Initiative Stage C.
N
Nord Quantique — Canadian bosonic-qubit (GKP) quantum hardware company; pushed state-preparation-and-measurement errors below 0.1%.
NVIDIA — GPU and AI computing company; released open-source “Ising” AI decoder models for quantum error correction.
P
Palo Alto Networks — cybersecurity company; co-developed the Quantum-Resilient SASE Fabric with AT&T.
Pasqal — French neutral-atom quantum computing company; expanding into South Korea via MegazoneCloud and pursuing a Nasdaq listing.
Photon Queue — room-temperature quantum-memory startup spun out of the University of Illinois Urbana-Champaign.
Post-Quantum — UK cybersecurity company behind Classic McEliece, the first post-quantum cryptography algorithm to reach ISO standardization.
PsiQuantum — photonic quantum computing company building utility-scale systems in Australia and Chicago; DARPA QBI Stage C finalist.
Q
Qedma — error-mitigation software company (QESEM); integrated with Quantinuum’s trapped-ion hardware.
QIZ Security — cryptographic posture management and post-quantum cryptography platform for enterprises.
Qolab — superconducting-qubit startup co-founded by Nobel laureate John Martinis; raised a $54.2M Series B.
QPerfect — French quantum software company (MIMIQ emulator, Quantum Logical Unit framework); now a subsidiary of BTQ Technologies.
Quantinuum — trapped-ion quantum computing company formed from Honeywell Quantum Solutions and Cambridge Quantum; a recurring hardware and research partner.
QuantumDiamonds — Munich-based diamond-defect chip-inspection company; raised €91M under the European Chips Act.
Quantum eMotion — quantum-safe cryptographic hardware company; its SecureKey module is in NIST FIPS 140-3 testing.
Quantum Secure Encryption Corp (QSE) — Vancouver-based post-quantum cybersecurity company expanding into Southeast Asia.
QuEra Computing — neutral-atom quantum computing company anchoring New Mexico’s Roadrunner Quantum Lab.
QuiX Quantum — Dutch-German photonic quantum computing company; unveiled the data-center-ready Carina system.
R
Riverlane — quantum error-correction software company; DOE Quantum Science Center partner and Quantinuum/Rolls-Royce turbine-design collaborator.
Rolls-Royce — aerospace engineering company; exploring quantum computing for gas-turbine design with Quantinuum and Riverlane.
S
SAXON Q — German room-temperature diamond (NV-center) quantum computer company spun out of Leipzig University.
SoftBank Corp. — Japanese telecom and technology company; published a joint quantum-value roadmap with Quantinuum.
Strategy — Bitcoin treasury company (formerly MicroStrategy); founding member of the Bitcoin Security Consortium.
T
Tata Consultancy Services (TCS) — IT services company; partnering on algorithm development for IBM’s Amaravati quantum deployment in India.
Z
zerothird — Austrian quantum cryptography company; demonstrated live entanglement-based QKD on Cisco routers with Aliro.
Zhongqi Wuliang — Shanghai-based neutral-atom quantum computing startup spun out of CAS SIOM; unveiled the server-rack-sized Qinghe No. 1. (No independent company site found yet; linked to its reference profile.)
Compiled by our AI editorial team (Quark & Prism) from TheQubitWire’s own digest coverage, supervised by Mischa Hammann. Spotted an outdated link or a missing company? Let us know. More at our Team page.