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 September 22, 2026. Investment funds, universities, and government agencies are covered separately and are not listed here.
A
Aeponyx — Montreal-based photonic integrated circuit company (acquired by Pasqal in 2025); its silicon-nitride chips generated the laser light used to trap individual atoms directly on-chip for the first time.
Airbus — aerospace manufacturer; Airbus Netherlands signed a ground lease with SES to build EAGLE-1’s quantum-safe satellite ground station.
AirTrunk — Asia-Pacific hyperscale data center operator; signed a partnership and funding agreement with Emergence Quantum to develop campus-scale cryogenic cooling infrastructure for next-generation, quantum-ready data centers.
Algorithmiq — Finnish quantum-software company; partnered with IBM to demonstrate quantum advantage and introduce a framework for trusted quantum computation beyond classical verification.
Alice & Bob — cat-qubit quantum computing company; joined QuBriC, Europe’s first doctoral network dedicated to quantum error correction, backed by the EU’s Horizon Europe program.
Aliro Technologies — quantum networking software company; its Orchestrator platform ran a live entanglement-based QKD demo on Cisco production routers.
Altera — FPGA (field-programmable gate array) solutions provider spun off from Intel; partnered with Riverlane to bring quantum error-correction interface support to its Agilex FPGAs.
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, and published new quantum-optimization toolkits with JPMorganChase.
Anchorage Digital — crypto-native digital asset platform; founding member of the Bitcoin Security Consortium.
Anthropic — AI research and safety company; its Claude Mythos Preview model discovered a mathematical weakness in NIST post-quantum signature candidate HAWK, prompting its withdrawal from standardization.
Apple — consumer technology and computing company; its M4 Max laptop CPU ran IonQ’s real-time quantum error-correction decoding pipeline for MegaQuOp-scale workloads entirely in software, without dedicated decoder hardware.
Aramco — Saudi Arabia’s national oil and gas company; signed a non-binding MoU with Quantinuum to explore quantum computing applications for the energy sector, including reservoir modeling and materials science.
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.)
ASML — Dutch semiconductor lithography equipment maker; joined the strategic investor group backing Fortaegis Technologies’ $50M Series A round for hardware-rooted, quantum-safe secure compute.
AT&T Business — telecom carrier; launched a Quantum-Resilient SASE fabric with Palo Alto Networks.
Avalanche PhotoniQ — single-photon detector maker built on semiconductor-metasurface technology; completed its acquisition by QuantumCore, becoming a dedicated detector-technology division within the company.
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 and defense company; longtime co-owner of HRL Laboratories, now continuing a research relationship with the lab following its acquisition by IBM.
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
CAE — Canadian aerospace and defence simulation-and-training company; joins the University of Calgary-led consortium operating Canada’s new Quantum Defence Innovation Secure Hub in Calgary.
Calian — Ottawa-based technology and engineering-services company; industry partner in the consortium behind Canada’s new Quantum Defence Innovation Secure Hub.
Ciena — networking hardware and optical systems company; its WaveLogic 6 Extreme technology was used in a 1.6 Tbit/s quantum-safe encryption trial with Quantum Corridor and Toshiba on a live commercial fiber network.
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.
Crypto4A Technologies — Canadian cybersecurity company; became the first in the world to achieve FIPS 140-3 Level 3 validation for a hardware security module supporting the full set of NIST-approved post-quantum cryptography algorithms.
D
Dell Canada — Canadian arm of Dell Technologies; industry partner in the consortium operating Canada’s new Quantum Defence Innovation Secure Hub.
Dell Technologies — global enterprise IT hardware and services company; partnered with Diraq to co-locate a dedicated HPC server cluster inside Diraq’s Sydney laboratory, testing hybrid quantum-classical computing workflows.
Diffraqtion — MIT and University of Maryland spinout building quantum-enabled cameras for defense, space, and autonomous-sensing applications; closed its pre-seed round above $10 million with backing from Lockheed Martin Ventures and Sumitomo’s Presidio Ventures.
Dirac Labs — University of Wisconsin-Madison spinout building diamond-based quantum magnetometry sensors for GPS-denied navigation; raised a $1.8M pre-seed round to prototype and field-test its sensors.
Diraq — Australian company building quantum processors from silicon spin qubits; opened its first U.S. laboratory in Chicago as part of the Illinois Quantum and Microelectronics Park’s On-Ramp program at mHUB.
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, and published a Nature-reviewed dual-rail entangling-gate breakthrough for fault-tolerant gate-model computing.
E
Eaton — power management company; won a $7M Air Force Research Laboratory contract with Infleqtion and Penn State to apply quantum computing to power-grid security.
eleQtron — German trapped-ion quantum computing company and University of Siegen spinout; partnered with Forschungszentrum Jülich to inaugurate JION, a microwave-controlled trapped-ion quantum computer built on its proprietary MAGIC technology.
Emergence Quantum — Australian quantum-hardware engineering firm founded by veterans of Microsoft’s quantum program; partnered with AirTrunk on campus-scale cryogenic cooling infrastructure for hyperscale data centers.
EPB — Chattanooga, Tennessee municipal electric and telecom utility; partnered with IonQ to open the Tennessee Quantum Communications Research Center, embedding a commercial quantum memory unit in its live fiber network.
Equal1 — quantum technology company that built ESA’s first quantum computer, the 6-qubit silicon-spin system Bell-1.
Equinix — global data center and colocation operator; partnering with Diraq to install the first silicon spin quantum computer inside a shared commercial data center, in Sydney.
EY — global professional services firm; EY Canada added an on-site quantum computer as part of a $3B+ investment in AI and other emerging technologies.
F
Fidelity Digital Assets — Fidelity’s digital-asset arm; founding member of the Bitcoin Security Consortium.
Fortaegis Technologies — Amsterdam-based hardware security startup; closed an oversubscribed $50M Series A round to scale its hardware-rooted, quantum-safe Secure Compute architecture for AI and post-quantum-era workloads.
Fujitsu — Japanese IT and electronics conglomerate; signed a quantum research and workforce partnership with Monash University and CSIRO, giving Australian researchers access to its RIKEN-hosted quantum systems.
G
Galaxy — digital-asset financial services firm; launched the Bitcoin Quantum Readiness Initiative and is a founding member of the Bitcoin Security Consortium.
General Dynamics Mission Systems–Canada — Ottawa-based defence and security technology company; industry partner in the consortium behind Canada’s new Quantum Defence Innovation Secure Hub.
General Motors — automaker; longtime co-owner of HRL Laboratories, now continuing a research relationship with the lab following its acquisition by IBM.
GlobalFoundries — U.S. semiconductor foundry; one of Diraq’s manufacturing and technology partners for its silicon spin qubit processors.
Google — developer of the Willow superconducting quantum processor and publisher of quantum error-correction benchmarks; its published correlated-matching and PyMatching decoder results were outperformed by Quantum X Labs‘ AI-driven decoder on a real hardware dataset.
Gurobi — maker of a widely used commercial mixed-integer programming solver; paired with Rigetti and Purdue University’s quantum preconditioning framework to reach near-optimal solutions up to 100x faster on constrained optimization problems.
H
Hefei Guizhen Chip Technology Co., Ltd. — Chinese photonic-chip startup (with USTC); demonstrated a 16-qubit on-chip architecture for measurement-based quantum computing using four photons across 16 waveguide paths. (No independent company site found yet; linked to its reference profile.)
Hellas Sat — Cypriot satellite communications operator; partnered with Sparkle to extend quantum-safe encryption to a live geostationary satellite link between Greece and Cyprus.
Hitachi — Japanese industrial conglomerate; selected by NEDO alongside Intel and AIST to scale silicon spin-qubit quantum processors; industry reports also credit it with the software stack for „Shunkai,“ Japan’s first full-stack neutral-atom quantum computer.
Honda — Japanese automaker; made a follow-on investment in quantum-algorithm startup Quemix to advance materials research, including next-generation battery materials.
Horizon Quantum — Nasdaq-listed software infrastructure company for quantum applications; partnered with Quantum Machines on embedded, real-time calibration for its Ember-1 superconducting testbed.
HPE (Hewlett Packard Enterprise) — supplies the high-performance computing, storage and networking hardware for the Pittsburgh Supercomputing Center’s TangleLab quantum-classical testbed.
HRL Laboratories — corporate research lab formerly co-owned by Boeing and General Motors; acquired by IBM to bring silicon-spin qubit, quantum sensing and cryogenics expertise into IBM’s quantum hardware roadmap.
I
IBM — pioneer of superconducting quantum computers and cloud/software provider (Qiskit); a recurring presence across hardware, acquisitions and research partnerships — most recently connecting its first modular cryogenic systems, a step toward its 2029 Starling fault-tolerant quantum computer, and establishing a quantum innovation hub with Lockheed Martin at ETH Zurich to host Switzerland’s first IBM Quantum System Two.
Iceberg Quantum — quantum error-correction architecture company behind the Pinnacle qLDPC codes; validated Pinnacle’s logical-performance advantage on Diraq’s silicon spin-qubit hardware using NVIDIA’s newly expanded CUDA-Q Logical layer.
IDC (International Data Corporation) — global technology market-research and advisory firm; rated D-Wave a „Leader“ in its 2026 quantum computing MarketScape.
Infleqtion — neutral-atom quantum computing company deploying its fault-tolerant Sqale system in Illinois; supplied the quantum processing unit for „Shunkai,“ Japan’s first full-stack neutral-atom quantum computer, under JST’s Moonshot program, received a $20M NASA follow-on contract to continue developing a space-based quantum gravity sensor (QGGPf), and integrated its open-source qLDPC error-correction library with NVIDIA’s CUDA-Q Logical platform.
Intel — semiconductor manufacturer; partnering with Hitachi and AIST on silicon spin-qubit scaling via its 18A process technology.
IonQ — trapped-ion quantum computing company; closed its $1.8B acquisition of semiconductor foundry SkyWater Technology and posted record Q2 2026 revenue of $80.1M (+287% year-over-year), signed a sovereign quantum-cloud deal with Archer Materials in Australia, and won a $28M DARPA contract to mass-produce its Evergreen-05 optical atomic clocks. On August 4, IonQ also signed an MOU with Sandia National Laboratories to co-design quantum computing and networking technologies for U.S. national security. On August 18, a further MOU with CMC Microsystems designated IonQ as a listed cloud provider for Canada’s FABrIC Quantum Computing Sandbox. On August 25, IonQ appointed Dr. Eric Ball and Timothy Baxter, the former board chairman of SkyWater Technology and former CEO of Samsung Electronics North America, to its board. On August 27, IonQ published a real-time quantum error-correction decoding pipeline capable of running MegaQuOp-scale workloads on a single Apple M4 Max CPU. On September 8, IonQ launched Superion 256, the first platform in its new Superion product line, using semiconductor-based Electronic Qubit Control (EQC) fabricated at SkyWater.
IQM — Finnish superconducting-qubit quantum computer manufacturer; DOE Quantum Science Center industry partner. Reported its first results as a newly public company in August 2026, with H1 revenue up 47% and an order backlog topping €102 million.
J
JIJ — Japanese quantum-optimization startup behind the JijZept platform; raised $5.2M led by Global Brain and joined the Quantinuum Startup Partner Program.
JPMorganChase — global bank; its quantum algorithms team published new near-term optimization tools with AWS for Rydberg-atom quantum hardware.
K
Kipu Quantum — German quantum software company; collaborated with IonQ on a protein-folding study that scaled optimization to 61-qubit instances, one of IonQ’s award-winning papers at IEEE Quantum Week 2026.
L
Lockheed Martin — U.S. aerospace, defense and security technology company; partnered with IBM, via an offset agreement with armasuisse, to establish a quantum innovation hub at ETH Zurich hosting Switzerland’s first IBM Quantum System Two, with joint research planned on quantum sensing for navigation and additive manufacturing of metallic alloys.
Lockheed Martin Canada — Canadian arm of the U.S. aerospace and defense company; industry partner in the consortium behind Canada’s new Quantum Defence Innovation Secure Hub in Calgary.
LuxProvide — Luxembourg high-performance computing operator; will host and operate EuroHPC’s new MeluXina-Q quantum computer, integrated with the MeluXina supercomputer.
M
MARA — U.S. Bitcoin mining company; its Slipstream mining service was used to submit the first quantum-safe Bitcoin transaction on mainnet, since regular Bitcoin nodes don’t yet relay its non-standard format.
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.
Meissner — Toronto-based materials-discovery startup using machine learning, simulations and lab testing to find new superconducting materials for quantum computing and fusion energy; raised $2.6M in pre-seed funding led by BDC Capital’s Thrive Venture Fund. (No independent company site found yet; linked to its reference profile.)
Microsoft — cloud and quantum computing company; one of only two firms, alongside PsiQuantum, to reach DARPA’s Quantum Benchmarking Initiative Stage C; also co-founded venture firm TitletownTech, which led Dirac Labs‘ $1.8M pre-seed round for its quantum navigation sensors.
Monarch Quantum — integrated-photonics manufacturer; partnering with Qunnect to build compact, field-deployable versions of its Carina quantum-networking hardware.
Multiverse Computing — Spanish quantum-software company; raised a Series C round targeting up to $570M for CompactifAI, its tensor-network-based AI model compression technology.
N
Nasdaq Verafin — financial-crime management technology company (a Nasdaq subsidiary); signed a new engagement with D-Wave, cited among its Q2 2026 commercial customer wins.
NEC — Japanese IT and electronics conglomerate; ended its decades-long effort to build a working quantum computer, concluding that a return on the investment would take too long to materialize.
Nord Quantique — Canadian bosonic-qubit (GKP) quantum hardware company; pushed state-preparation-and-measurement errors below 0.1%.
NTT (Nippon Telegraph and Telephone Corporation) — Japanese telecom operator; signed a capital and business alliance with OptQC to build a fault-tolerant, room-temperature optical quantum computer targeting 1 million qubits by 2030.
NVIDIA — GPU and AI computing company; released open-source „Ising“ AI decoder models for quantum error correction, launched the CUDA-Q Logical orchestration layer used by Infleqtion for high-rate error correction, and its GPU-accelerated cuQuantum software helped IonQ and qBraid validate a 54% error-rate reduction in quantum chemistry simulations.
O
Oki Electric Industry Co., Ltd. — Japanese information and telecommunications infrastructure company; extended its engagement with D-Wave for quantum computing applications.
OptQC — Tokyo-based optical quantum computing startup spun out of 25 years of University of Tokyo research; signed a capital alliance with NTT targeting a 1-million-qubit system by 2030.
Oracle — cloud computing company; partnering with Quantinuum to deploy its Helios quantum computer as a service on Oracle Cloud Infrastructure (OCI).
Oratomic — quantum-computing startup building fault-tolerant systems with Caltech; introduced „mitten“ qLDPC error-correcting codes that could cut the physical qubit requirements for utility-scale quantum computers.
OTI Lumionics — Toronto-based materials-discovery company; published a JACS study with Samsung’s SAIT showing its iQCC method can emulate 200+ qubits on a single commercial server, accelerating OLED materials design.
P
Palo Alto Networks — cybersecurity company; co-developed the Quantum-Resilient SASE Fabric with AT&T.
ParityQC — Austrian quantum-software company; launched the Parity Twine Optimizer, a gate- and circuit-depth-reducing compiler, as a product in IBM’s Qiskit Functions Catalog.
Pasqal — French neutral-atom quantum computing company; expanding into South Korea via MegazoneCloud, formed the Pasqal Arabia joint venture with Eleven Ventures to serve Saudi Arabia and the wider MENA region, is pursuing a Nasdaq listing via a merger with Bleichroeder Acquisition Corp. II, encoded protein-gelation structures on its neutral-atom processors with Saudi partner True Nexus, and signed a multi-year quantum-safe cryptography research agreement with Saudi Arabia’s KACST.
Photon Queue — room-temperature quantum-memory startup spun out of the University of Illinois Urbana-Champaign.
Photonic — Vancouver-based quantum computing company; had its SHYPS quantum error-correction codes, shown to run quantum logic using meaningfully fewer physical qubits than standard surface codes, published in Nature Communications, and unveiled Project VANGUARD, a proposed CA$500M shared semiconductor manufacturing facility in Vancouver.
Post-Quantum — UK cybersecurity company behind Classic McEliece, the first post-quantum cryptography algorithm to reach ISO standardization.
Prodrive Technologies — Dutch high-tech electronics and mechatronics manufacturer; joined the strategic investor group backing Fortaegis Technologies’ $50M Series A round for quantum-safe secure compute hardware.
PsiQuantum — photonic quantum computing company building utility-scale systems in Australia and Chicago; DARPA QBI Stage C finalist, and partnering with Brookhaven National Laboratory on fault-tolerant algorithm development for DOE’s Quantum Genesis initiative.
Q
qBraid — quantum cloud computing platform; worked with IonQ and NVIDIA to demonstrate a 54% reduction in error rates for quantum chemistry simulations using mid-circuit measurement.
Q-CTRL — quantum control software and sensing company; navigated a maritime vessel without GPS using a software-ruggedized quantum gravimeter in the Coral Sea off Australia, achieving roughly one-nautical-mile positioning accuracy.
QC Ware — quantum software company; demonstrated a hybrid quantum-classical chemistry workflow with its Promethium platform and IBM’s 156-qubit Heron processor, calculating interaction energy for a metalloenzyme relevant to drug discovery.
Qedma — error-mitigation software company (QESEM); integrated with Quantinuum’s trapped-ion hardware, and published a study with HQC2 showing a 30-50x quantum chemistry accuracy improvement from error mitigation.
Qilimanjaro Quantum Tech — Barcelona-based quantum-software company; released QiliSDK v0.3.0, its open-source Python framework for digital, analog and hybrid quantum workflows, adding GPU-accelerated analog simulation and Python 3.14 support.
QIZ Security — cryptographic posture management and post-quantum cryptography platform for enterprises.
QNu Labs — Bengaluru-based quantum cybersecurity company; opened a Quantum Communications Lab with SRMIST to train India’s first certified educator cohort in quantum communications.
Qolab — superconducting-qubit startup co-founded by Nobel laureate John Martinis; raised a $54.2M Series B, and became the first named customer of SkyWater’s new merchant-foundry business for its Quantum System-in-Package architecture.
QPerfect — French quantum software company (MIMIQ emulator, Quantum Logical Unit framework); now a subsidiary of BTQ Technologies.
QpiAI — Bengaluru-based quantum hardware startup; opened an eight-inch quantum chip foundry in Jakkur capable of fabricating up to 128-qubit superconducting processors, with plans to scale to 10,000-qubit QPUs by 2027.
QTREX Quantum — designs cryogenic interconnects and high-frequency systems for quantum computing; partnering with Northeastern University on next-generation interconnect materials research.
Quanta Computer — Taiwanese contract manufacturer; signed a cooperation agreement with Quantinuum to build modular, manufacturing-friendly hardware infrastructure for future quantum systems.
Quantinuum — trapped-ion quantum computing company formed from Honeywell Quantum Solutions and Cambridge Quantum; a recurring hardware and research partner — most recently a partner in UCLA’s NSF-backed FTL project working toward a 60-logical-qubit fault-tolerant trapped-ion computer.
QuantrolOx — quantum automation software startup; signed a five-year memorandum of understanding with UC Berkeley to help industrialize superconducting quantum computers using its Quantum EDGE calibration software.
QuantumBasel — Swiss quantum and AI competence center providing hardware access and consulting; a research partner behind one of IonQ’s four Best Paper Award-winning studies presented at IEEE Quantum Week 2026.
Quantum Brilliance — diamond-based (NV-center) quantum computing company; co-authored a GPU-accelerated digital-twin framework for quantum sensor error attribution with MITRE, NVIDIA and SandboxAQ.
Quantum Computing Inc. (QCi) — Hoboken, New Jersey-based entropy quantum computing company; signed a three-year research and education framework agreement with Qatar’s Hamad Bin Khalifa University, including cloud and on-site access to its Dirac-3 system.
QuantumCore — quantum infrastructure hardware supplier; completed its acquisition of single-photon detector maker Avalanche PhotoniQ, extending its reach beyond superconducting systems into photonic quantum computing, communication and sensing.
Quantum Corridor — operator of a quantum-safe commercial fiber network between Chicago and Hammond, Indiana; validated 1.6 Tbit/s of quantum-safe encryption with Ciena and Toshiba.
QuantumDiamonds — Munich-based diamond-defect chip-inspection company; raised €91M under the European Chips Act.
Quantum Elements — released Orbit, an automated error-suppression tool available as a Qiskit Function in IBM’s Qiskit Functions Catalog.
Quantum eMotion — quantum-safe cryptographic hardware company; its SecureKey module is in NIST FIPS 140-3 testing.
Quantum Foundry Copenhagen — Novo Nordisk Foundation-owned quantum chip manufacturing company; announced a 5,300 m² fabrication facility in Copenhagen for wafer production, packaging and testing of quantum chips.
Quantum Machines — provider of quantum control and orchestration hardware (OPX1000); partnering with Horizon Quantum on embedded, real-time calibration technology.
Quantum Motion — UK-based silicon spin-qubit quantum computing company; closed a second tranche of its Series C funding round to scale fault-tolerant hardware built on standard semiconductor CMOS fabrication.
Quantum Secure Encryption Corp (QSE) — Vancouver-based post-quantum cybersecurity company expanding into Southeast Asia.
Quantum X Labs (Nasdaq: QXL) — quantum technology company; its AI-driven error-correction decoder outperformed Google’s published matching-family benchmarks on a real quantum-hardware dataset.
QuantX Labs — Australian precision-timing company; commissioned the first space-based optical frequency comb, a step toward its sovereign satellite-navigation ambitions.
Quemix — Japanese quantum-algorithm startup behind the patented Probabilistic Imaginary-Time Evolution (PITE) algorithm for fault-tolerant quantum computers; received fresh investment from Honda to accelerate quantum-chemistry calculations for battery materials.
QuEra Computing — neutral-atom quantum computing company anchoring New Mexico’s Roadrunner Quantum Lab, and whose Aquila device powers AWS/JPMorganChase’s near-term quantum optimization research.
QuiX Quantum — Dutch-German photonic quantum computing company; shipped Alquor 2.0, a rack-mountable photonic processor platform with more than 20 systems already deployed.
QunaSys — Tokyo-based quantum algorithm and software company; its QURI SDK Enterprise was adopted by RIKEN as the software backbone for Japan’s JHPC-quantum supercomputer-quantum integration project.
Qunnect — Brooklyn-based quantum-networking startup; its polarization-stabilization hardware enabled NIST’s real-world aerial-fiber entanglement demonstration, and it is partnering with Monarch Quantum on more compact, field-deployable versions of its Carina platform.
R
Rigetti Computing — superconducting-qubit quantum computing company; its 9-qubit Novera QPU anchors the Pittsburgh Supercomputing Center’s TangleLab testbed, and it unveiled a quantum preconditioning technique with Purdue University that speeds up classical Mixed-Integer Programming solvers up to 100x.
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
S-Transistors — Finnish spin-off from VTT Technical Research Centre of Finland building superconducting-transistor „quantum motherboards“ to control and orchestrate qubits inside a cryostat; raised a €2.6M pre-seed round led by Lifeline Ventures.
Samsung Advanced Institute of Technology (SAIT) — Samsung’s corporate research institute; co-authored a JACS study with OTI Lumionics benchmarking a quantum emulation method against classical approaches across 14 OLED emitter materials.
Samsung Electronics — South Korean electronics conglomerate; its former North America CEO, Timothy Baxter, joined IonQ’s board of directors alongside Dr. Eric Ball.
SandboxAQ — AI and quantum-sensing company spun out of Google; its cesium magnetometer array for magnetocardiography anchored a MITRE-led digital-twin study on quantum sensor error attribution, published with Quantum Brilliance and NVIDIA.
SAXON Q — German room-temperature diamond (NV-center) quantum computer company spun out of Leipzig University.
SEEQC — digital quantum computing company building superconducting chips with integrated cryogenic control electronics; signed an MoU with Taiwan’s Quantum Industry Technology Promotion Office (QITPO) to build a cross-border cryo-chip supply chain.
SES — satellite operator; building EAGLE-1’s quantum-safe optical ground station with Airbus at NL Space Campus.
Shionogi & Co., Ltd. — Japanese pharmaceutical company; signed a new engagement with D-Wave for quantum computing applications in drug discovery.
SkyWater Technology — U.S. semiconductor foundry acquired by IonQ to form a vertically integrated, full-stack quantum platform; launched SkyWater Quantum Solutions, a merchant-foundry division serving outside quantum hardware makers, with Qolab as its first named customer.
SoftBank Corp. — Japanese telecom and technology company; published a joint quantum-value roadmap with Quantinuum.
Sparkle — Italian international telecoms carrier; demonstrated its Quantum Safe Interconnect (QSI) system on a live satellite link with Hellas Sat between Athens and Cyprus.
StarkWare — Israeli blockchain scaling company; its researcher Avihu Levy developed the Quantum-Safe Bitcoin (QSB) method used to confirm the first quantum-resistant Bitcoin transaction on mainnet on August 26, with no soft fork or hard fork required.
Strategy — Bitcoin treasury company (formerly MicroStrategy); founding member of the Bitcoin Security Consortium.
Synopsys — semiconductor design and engineering-software company; its Ansys LS-DYNA simulation software ran a hybrid quantum algorithm with IonQ, cutting engineering-simulation runtimes by up to 14.6%.
T
Tata Consultancy Services (TCS) — IT services company; partnering on algorithm development for IBM’s Amaravati quantum deployment in India.
Thales — security and aerospace conglomerate; introduced Luna 8, a hardware security module for the transition to post-quantum cryptography.
ThinkQuantum — Italian photonics company; demonstrated an 18-kilometer free-space quantum key distribution link with the University of Padua using its QUKY hardware and room-temperature single-photon detectors.
Toshiba — Japanese electronics conglomerate; its quantum key distribution (QKD) platform was part of a 1.6 Tbit/s quantum-safe encryption trial with Quantum Corridor and Ciena.
TreQ — Oxford-based open-architecture quantum computing infrastructure company; partnering with George Mason University to install its first U.S. system, a $7.7 million open-architecture QPU in Virginia.
True Nexus — Saudi deep-tech company building computational intelligence to make protein functionality designable; partnered with Pasqal to encode protein-gelation structures on a neutral-atom quantum processor. (No independent company site found yet; linked to its reference profile.)
U
Unisys — global technology solutions company; extended its engagement with D-Wave for quantum computing applications.
X
Xanadu — Canadian photonic quantum computing company; secured CAD $195M in federal funding to build „Inception,“ a new quantum photonics manufacturing facility in Toronto, under its Project OPTIMISM.
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.)
ZuriQ — Swiss trapped-ion quantum hardware startup spun out of ETH Zürich; raised $25.5M in seed funding to scale its two-dimensional Penning-microtrap architecture.
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.