01 Quantum Inc.
01 Quantum Inc. develops post-quantum cryptography products and services built around its IronCAP technology.
Quantum company directory
Profiles of companies building quantum computers, software, networks, sensors, security and enabling technology. Every profile is written from cited sources.
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1QB Information Technologies Inc.
1QB Information Technologies Inc. develops automated quantum design tools for utility-scale quantum computation.
Aegiq Ltd.
Aegiq Ltd. is a UK company developing fault-tolerant photonic quantum computers using deterministic photon sources and silicon photonics.
Algorithmiq
Algorithmiq develops quantum algorithms and software interfaces for chemistry, healthcare, and life-sciences applications using hybrid classical and quantum computing.
Alice & Bob
Alice & Bob is a Paris- and Boston-based quantum computing company building fault-tolerant machines from cat qubits, with the Helium platform for error correction.
Aliro Technologies, Inc.
Aliro Technologies, Inc. develops software to design, control, and operate entanglement-based quantum networks across real-world infrastructure.
Alpine Quantum Technologies GmbH
Alpine Quantum Technologies GmbH is an Innsbruck, Austria-based company building trapped-ion quantum computers, instruments, and cloud access services.
Amazon Braket
Amazon Braket is an AWS quantum cloud computing service for accessing quantum computers and simulators on AWS.
Anyon Systems Inc.
Anyon Systems Inc. is a Canadian company developing and deploying on-premise superconducting quantum computers and software for HPC centres, government, universities, and strategic partners.
Aquark Technologies Ltd
Aquark Technologies Ltd develops miniaturised cold-atom quantum hardware for sensing, timing, and spectroscopy applications.
Archer Materials Ltd.
Archer Materials Ltd. is an Australian public quantum technology company developing the 12CQ chip and a biochip for diagnostics.
Arqit
Arqit provides software-based quantum-safe cybersecurity products focused on post-quantum cryptography migration, key sovereignty, and network encryption.
Atom Computing, Inc.
Atom Computing builds gate-based quantum computers using arrays of optically trapped neutral atoms.
Azure Quantum
Azure Quantum is Microsoft's quantum computing offering within Azure, combining quantum technologies with AI and high-performance computing.
Bluefors Oy
Bluefors Oy makes cryogenic systems and measurement infrastructure used in quantum technology and low-temperature research.
BlueQubit
BlueQubit is a quantum software company building algorithms, simulators, developer tools, and hardware access for quantum computing.
Bosch Quantum Sensing GmbH
Bosch Quantum Sensing GmbH develops portable magnetic-field quantum sensors for applications including healthcare, navigation, exploration, consumer goods, and process optimization.
BQP
BQP, formerly BosonQ Psi, develops quantum-inspired simulation and optimization software for engineering and mission-critical applications.
BTQ Technologies Corp.
BTQ Technologies Corp. develops trusted quantum infrastructure spanning post-quantum cryptographic hardware, blockchain network security, and quantum computing infrastructure tools.
C12
C12 is a Paris-based company developing carbon-based quantum computing hardware and software tools aimed at utility-scale, fault-tolerant quantum computing.
Cerca Magnetics
Cerca Magnetics develops a wearable OPM-MEG brain-imaging system that uses optically pumped magnetometers to measure magnetic fields from neural activity.
Chicago Quantum Exchange
Chicago Quantum Exchange is a Midwest-based consortium advancing quantum research, workforce development, and regional economic innovation.
Classiq
Classiq develops enterprise quantum computing software for designing, optimizing, and running quantum algorithms across multiple hardware backends and simulators.
ColibriTD
ColibriTD is a Paris-based quantum software company developing hybrid algorithms and tools for multiphysics simulation and scientific computing.
Conductor Quantum, Inc.
Conductor Quantum builds software for operating quantum computers, including a natural-language interface and automated calibration/control tools.
Crypto4A Technologies
Canadian cybersecurity company building quantum-safe hardware security modules and related security platforms for post-quantum cryptography and secrets management.
CryptoNext Security
CryptoNext Security develops post-quantum cryptography and crypto-agility products to help organizations assess, migrate, and manage quantum-resistant cybersecurity.
D-Wave Quantum Inc.
D-Wave Quantum Inc. develops quantum computing systems, cloud services, software, and services centered on annealing and gate-model technologies.
Delft Circuits
Delft Circuits makes superconducting cryogenic cabling and quantum I/O infrastructure designed to increase channel density and reduce thermal load in cryostats.
Delta g Limited
Delta g Limited develops quantum gravity gradiometers for mapping, navigation, and subsurface discovery.
Diraq
Diraq develops silicon spin-qubit quantum computing hardware using modified silicon transistors and CMOS-compatible manufacturing.
EeroQ
EeroQ is a quantum hardware company developing electron qubits floating on superfluid helium and integrated with CMOS-fabricated control chips.
Element Six
Element Six develops synthetic diamond and tungsten carbide materials, including semiconductor and optics products for next-generation applications.
eleQtron GmbH
eleQtron GmbH is a German quantum computing company developing and operating ion-based quantum computers using its MAGIC microwave-control approach.
Elevate Quantum
Elevate Quantum is a U.S. quantum consortium and designated Tech Hub focused on commercialization, workforce development, and shared infrastructure in the Mountain West.
Entropica Labs Pte Ltd
Singapore-based Entropica Labs develops software infrastructure for programmable fault-tolerant quantum computing, spanning QEC design, compilation, and deployment.
EPB Quantum
EPB Quantum operates a commercial quantum networking and computing hub in Chattanooga built around its EPB Quantum Network and IonQ Forte Enterprise access.
Ephos
Ephos designs and manufactures glass-based integrated photonic circuits for advanced classical and quantum devices.
Equal1
Equal1 develops rack-mounted quantum computers and silicon-based quantum processors designed for deployment in existing data center environments.
esoteriq
esoteriq is an early-stage quantum software company developing Rune, a tool to judge where quantum computing can deliver commercial value, starting in finance.
evolutionQ
evolutionQ is a cybersecurity company developing software and services for post-quantum cryptographic resilience and quantum networking adoption.
Exail
Exail is a high-tech industrial group whose photonics business includes quantum and metrology instruments such as quantum gravimeters and optical frequency transfer solutions.
Fixstars Amplify
Fixstars Amplify is a quantum computing platform for optimization that works with quantum annealing, Ising, mathematical optimization, and gate-based quantum systems.
FormFactor, Inc.
FormFactor, Inc. supplies semiconductor test and measurement equipment, including quantum cryogenic and thermal management tools used in quantum computing applications.
Google Quantum AI
Google Quantum AI is Google's quantum-computing division developing quantum hardware and software, including the Willow processor and quantum error-correction resources.
Haiqu Inc.
Haiqu Inc. develops quantum computing software for R&D teams, including an agentic operating system, SDK, and runtime for running applications on quantum hardware.
Hitachi, Ltd.
Hitachi, Ltd. conducts quantum-related R&D including silicon quantum computers and quantum measurement using holography electron microscopes.
Horizon Quantum Holdings Ltd.
Horizon Quantum Holdings Ltd. develops software infrastructure for quantum computing, centered on its Triple Alpha integrated development environment.
HQS Quantum Simulations
HQS Quantum Simulations develops quantum-model-based software for spectroscopy, NMR analysis, and quantum simulation applications for science and industry.
HyperLight
HyperLight develops thin-film lithium niobate photonic integrated circuit products, including transmitter PICs and packaged modulators, for data center, telecom, and quantum-system applications.
IBM Quantum
IBM Quantum is IBM’s full-stack quantum computing business, offering quantum hardware, Qiskit software, and platform access for research and commercial partners.
Icarus Quantum
Icarus Quantum develops photonic interconnects and entangled photon sources for connecting quantum computers through room-temperature fiber optics.
ICEoxford
ICEoxford develops high-performance cryogenic systems, including modular cryogenic architecture for scalable quantum technologies.
ID Quantique SA
ID Quantique SA develops quantum-safe security, quantum random number generation, and quantum detection systems from its headquarters in Geneva, Switzerland.
IDEMIA Secure Transactions
IDEMIA Secure Transactions, a division of IDEMIA Group, supplies payment, connectivity and cybersecurity products, including post-quantum cryptography libraries and quantum-ready payment cards.
Infleqtion, Inc.
Infleqtion, Inc. develops neutral-atom quantum computing, sensing, networking, security, and software systems for government, commercial, and research users.
IonQ, Inc.
IonQ, Inc. develops trapped-ion quantum computing systems, cloud access, and enterprise offerings, and also describes work in quantum networking, sensing, and security.
IonQ, Inc.
IonQ develops trapped-ion quantum computing systems and also works on quantum networking, sensing, and security.
IQM Quantum Computers Plc
IQM Quantum Computers Plc builds full-stack superconducting quantum computers and related cloud access for HPC centers, researchers, and enterprises.
JIJ Inc.
JIJ Inc. is a Japanese software company providing mathematical optimization and quantum-computing-related services, centered on its JijZept platform.
KETS Quantum Security
KETS Quantum Security develops chip-based quantum security products including quantum key distribution and quantum random number generators.
Keysight Technologies, Inc.
Keysight Technologies provides hardware and software for engineering workflows, with quantum computing listed among the industries it serves.
Kipu Quantum GmbH
Kipu Quantum GmbH provides a cloud platform and algorithms intended to help enterprises and researchers build quantum applications on real hardware.
kiutra GmbH
kiutra GmbH develops cryogenic cooling systems and services for quantum technologies, including cryostats for superconducting, spin-qubit, and trapped-ion applications.
Kvantify
Kvantify develops software and services that combine quantum and classical computing for molecular discovery in chemistry and biology.
Lightsynq Technologies Inc.
Lightsynq Technologies Inc. develops universal optical quantum interconnects for modular quantum computing systems.
Luxquanta Technologies S.L.
Luxquanta Technologies S.L. develops continuous-variable quantum key distribution systems for securing communications over optical fiber networks.
Maybell Quantum Industries Inc.
Maybell Quantum Industries builds dilution refrigerators and related cryogenic infrastructure for quantum technology users.
memQ Inc.
memQ Inc. develops quantum networking technology and an extensible architecture for connecting quantum processing units.
Menlo Systems
Menlo Systems is a German photonics company supplying frequency combs, ultrastable lasers, and related systems for metrology, quantum technology, and other precision applications.
Mesa Quantum
Mesa Quantum develops chip-scale quantum sensors and clocks for timing, navigation, and magnetic-field measurement in GPS-denied and other demanding environments.
Miraex SA
Miraex SA develops thin-film lithium tantalate photonic integrated circuits for microwave-to-optical quantum interconnects spanning computing, sensing, and networking.
Molecular Quantum Solutions
Molecular Quantum Solutions develops software for quantum chemistry, materials science, and machine-learning workflows, centered on its Cebule platform for molecular R&D.
Montana Instruments Corporation
Montana Instruments Corporation builds cryogenic systems and related tools for quantum and low-temperature research laboratories.
Moth Quantum
Moth Quantum is a quantum technology company building creative applications and an API platform for using quantum computing in games, media, and creative workflows.
Multiverse Computing
Multiverse Computing develops compressed AI models and a quantum-inspired optimization platform called Singularity.
Nanofiber Quantum Technologies, Inc.
Nanofiber Quantum Technologies develops cavity-QED, fiber-native quantum interconnects for networked quantum computing, with stated compatibility with neutral atom QPUs.
Nomad Atomics
Nomad Atomics is a quantum sensing company developing deployable absolute quantum gravimeters and providing integrated geophysical surveying services.
Nord Quantique
Nord Quantique develops error-corrected quantum computers using superconducting bosonic codes to target a 1:1 logical-to-physical qubit ratio.
NORMA Inc.
NORMA Inc. is a South Korean quantum technology company building quantum-computing infrastructure, including cloud, software, hardware, applications, and quantum security offerings.
Nu Quantum
Nu Quantum builds quantum networking technology and an "Entanglement Fabric" to connect processors for distributed quantum computing scale-out.
NVIDIA
NVIDIA offers quantum computing software, simulation, networking, and post-quantum cryptography tools centered on accelerated quantum supercomputing.
NVision Quantum
NVision Quantum develops molecular quantum systems for quantum computing and quantum-enhanced MRI using quantum spin control in organic molecules.
OptQC株式会社
Japanese company developing photonic quantum computers based on optical quantum technology.
Orange Quantum Systems
Orange Quantum Systems develops test equipment, software, and services for benchmarking and scaling solid-state quantum chips.
ORCA Computing
ORCA Computing is a London-headquartered company developing photonic quantum computers and hybrid quantum-classical systems for AI and optimisation workloads.
Origin Quantum Computing Technology (Hefei) Co., Ltd.
Origin Quantum is a Hefei-based quantum computing company developing superconducting quantum computers, full-stack software, control systems, cloud services, and related hardware.
Oxford Ionics
Oxford Ionics develops quantum computers using electronically controlled trapped-ion qubits and field-upgradeable QPUs.
Oxford Quantum Circuits
Oxford Quantum Circuits builds superconducting quantum computers and provides quantum-compute-as-a-service, with systems deployed in commercial environments and data centres.
Parity Quantum Computing GmbH
Parity Quantum Computing GmbH develops quantum-computing architecture blueprints and operating-system software for scalable quantum computers.
Pasqal
Pasqal is a quantum computing company developing neutral-atom quantum processors and related cloud and software offerings for industrial and scientific applications.
Patero
Patero provides cryptographic inventory and post-quantum security tools aimed at protecting infrastructure, data, and networks.
Pelagic Systems
Pelagic Systems builds real-time control, calibration and characterization software for quantum processors, running analysis on FPGA controllers.
Phasecraft Limited
Phasecraft Limited is a quantum algorithms company developing software for materials discovery and optimization across multiple quantum hardware platforms.
Photon Spot, Inc.
Photon Spot, Inc. develops cryogenic systems and superconducting nanowire single-photon detectors for quantum and scientific applications.
Photonic Inc.
Photonic Inc. is a private Canadian quantum computing company developing a distributed platform based on silicon T centres and spin-photon architecture.
planqc
planqc is a quantum computing company developing full-stack systems built around neutral-atom qubits trapped in optical lattices.
Plurilock Security Inc.
Plurilock Security Inc. is a public cybersecurity and IT services company that offers AI security and post-quantum readiness services.
Post-Quantum
Post-Quantum develops quantum-safe cybersecurity products focused on post-quantum cryptography, including hybrid VPN, messaging, and identity protection solutions.
pQCee Pte Ltd
pQCee builds post-quantum cryptography and quantum-safe security products, including PQC certificates, QKD key management and quantum-safe web encryption.
PQShield Ltd
PQShield Ltd develops post-quantum cryptography hardware and software for securing devices, applications, and infrastructure against quantum-era threats.
Project Eleven
Project Eleven develops post-quantum security offerings for digital-asset infrastructure and publishes research on quantum risks to blockchains.
PsiQuantum
PsiQuantum is a private quantum computing company developing fault-tolerant quantum computers using silicon photonics.
Q-CTRL
Q-CTRL develops AI-powered infrastructure software for quantum computing and quantum sensing, including products for error reduction, hardware control, education, and GPS-free navigation.
Q.ANT GmbH
Q.ANT GmbH is a Stuttgart-based company developing photonic processors and software for AI and high-performance computing, while also participating in photonic quantum-computing projects.
QANplatform
QANplatform develops a quantum-resistant Layer 1 hybrid blockchain using lattice-based cryptography for smart contracts and Web3 applications.
Qarakal Quantum
Qarakal Quantum is an Israeli startup building modular superconducting quantum computers based on a von Neumann-style architecture of specialized, interconnected modules.
Qblox BV
Qblox BV develops scalable qubit control and readout electronics for quantum computing and research across multiple qubit architectures.
qBraid Co.
qBraid Co. is a Chicago-based quantum software company offering a cloud platform to build, run, deploy, and learn quantum computing across multiple hardware providers.
QC Ware
QC Ware develops enterprise software and services for quantum computing and offers the Promethium computational chemistry platform.
QCentroid
QCentroid provides a platform for accessing and comparing quantum algorithms, simulators, and hardware through a unified API.
Qedma
Qedma develops mid-stack quantum software for error mitigation, suppression, and signal extraction on noisy quantum hardware.
Qilimanjaro Quantum Tech
Barcelona-based Qilimanjaro Quantum Tech builds full-stack analog quantum computers and related infrastructure, including its SpeQtrum access platform and on-premise deployments.
Qnami
Qnami develops diamond NV-center quantum microscopy platforms, sensors, and software for nanoscale magnetic imaging and materials research.
Qolab
Qolab is a private quantum hardware company developing superconducting QPUs using semiconductor manufacturing and wafer-scale integration approaches.
Qoro Quantum Ltd
Qoro Quantum develops software to orchestrate hybrid classical-quantum computing across CPUs, GPUs, simulators, and quantum processors.
QPerfect
QPerfect is a Strasbourg-based quantum software company that builds the MIMIQ quantum circuit emulator and the QLU fault-tolerant compilation layer for neutral-atom processors.
QphoX B.V.
QphoX B.V. develops quantum transduction and cryogenic optical control products aimed at connecting, controlling, and scaling quantum systems.
QpiAI
QpiAI develops full-stack AI and quantum computing products, including superconducting quantum processors, systems, and cloud-based software platforms.
Qruise GmbH
Qruise GmbH develops machine-learning software and digital-twin tools for quantum computing, magnetic resonance, and quantum sensing.
Qrypt
Qrypt develops quantum-secure encryption and quantum entropy products aimed at protecting data without transmitting encryption keys.
QuamCore Ltd.
QuamCore Ltd. develops a superconducting quantum computing architecture focused on large-scale, fault-tolerant systems using integrated digital superconducting logic.
Quandela
Quandela develops photonic quantum computers, cloud access, and related software and photonic components.
Quantinuum
Quantinuum develops trapped-ion quantum computers, cloud and developer software, and application software for quantum computing.
QuantrolOx Ltd.
QuantrolOx develops machine-learning software to automate tuning, characterization, and optimization of superconducting quantum computers.
Quantropi Inc.
Quantropi is a Canadian cybersecurity company offering quantum-secure communications products spanning post-quantum cryptography, symmetric encryption, and quantum entropy services.
Quantum Art
Quantum Art is a private quantum computing company developing scalable trapped-ion, multi-core full-stack quantum computing systems.
Quantum Brilliance Pty Ltd
Quantum Brilliance develops diamond-based quantum chips and products for sensing and computing that operate at room temperature.
Quantum Circuits
Quantum Circuits is a quantum computing company developing superconducting dual-rail qubits with built-in error detection and now part of D-Wave Quantum Inc.
Quantum Computing Inc.
Quantum Computing Inc. develops room-temperature quantum photonics products for computing, sensing, and secure communications.
Quantum Corridor
Quantum Corridor is a Chicago-area company operating a commercial quantum-ready network for quantum-safe connectivity, timing, and compute access.
Quantum Design Oxford
Quantum Design Oxford designs and supplies low-temperature, magnetic-field, and integrated research systems used in quantum technologies and related physical-science applications.
Quantum Diamond Technologies Inc.
Quantum Diamond Technologies develops NV-diamond quantum sensing instruments for biomarker detection in biomedical research, drug discovery, and diagnostics.
Quantum Dice Limited
Quantum Dice Limited develops DISC-certified quantum random number generators and the ORBIT probabilistic processing platform based on photonic quantum entropy sources.
Quantum Economic Development Consortium
Quantum Economic Development Consortium is a global industry consortium focused on building the quantum economy through collaboration, community-building, and ecosystem development.
Quantum Elements
Quantum Elements describes itself as an AI-native quantum development platform for building, optimizing, and launching quantum applications.
Quantum eMotion Corp.
Quantum eMotion Corp. develops quantum random number generation and quantum-safe cybersecurity hardware, software, and cloud services.
Quantum Generative Materials (GenMat)
GenMat is a materials engineering company developing AI and quantum-enabled software for materials discovery and simulation.
Quantum Machines
Quantum Machines develops control and orchestration technology for quantum computing, including hardware and software for building and operating quantum computers.
Quantum Microwave
Quantum Microwave is a manufacturer, distributor, and technical sales marketplace for microwave, millimeter-wave, and cryogenic components used in quantum computing and related systems.
Quantum Motion
Quantum Motion is a private company developing full-stack silicon CMOS quantum computing based on silicon-spin qubits.
Quantum Optics Jena GmbH
Quantum Optics Jena GmbH develops quantum-safe communication solutions centered on quantum key distribution and related security layers.
Quantum Opus, LLC
Quantum Opus, LLC makes superconducting nanowire single-photon detector systems and custom photon-detection solutions for quantum and related research applications.
Quantum Rings, Inc.
Quantum Rings, Inc. provides large-scale quantum circuit simulation software and access to external QPUs through its Open Quantum platform.
QuantumBasel
QuantumBasel is a Swiss quantum computing and AI competence center offering projects, training, and hardware access from Arlesheim.
QuantumDiamonds
QuantumDiamonds develops quantum-sensing tools for non-destructive semiconductor failure analysis and advanced packaging inspection.
QuantWare BV
QuantWare BV is a Delft-based quantum processor company developing superconducting QPUs, peripherals, and VIO-enabled foundry and packaging services.
Qubit Pharmaceuticals
Qubit Pharmaceuticals develops quantum- and AI-enabled molecular modeling software and drug discovery programs for oncology, inflammation, and antivirals.
QUDORA Technologies
German startup building ion-trap quantum computers, stand-alone processors, and a cloud platform for trapped-ion quantum computing services.
QuEL, Inc.
QuEL, Inc. develops quantum computer control hardware and middleware linking quantum software with qubit chips.
QuEra Computing
QuEra Computing develops neutral-atom quantum computers and related platforms for cloud, research, enterprise, HPC, and public-sector users.
Quint Computing
Quint Computing is an Erlangen-based start-up building superconducting quantum computers whose chip architecture suppresses most errors in hardware to cut fault-tolerance overhead.
QuintessenceLabs
QuintessenceLabs is an Australian quantum cybersecurity company offering quantum key distribution, quantum random number generation, and post-quantum cryptography-related products.
QuiX Quantum
QuiX Quantum is a private Dutch photonic quantum computing hardware company founded in 2019 and focused on integrated photonics for data centers and HPC environments.
QunaSys Inc.
QunaSys Inc. develops quantum-computing algorithms and software, including QURI SDK, and provides consulting and research services for industrial applications such as chemistry.
Qunova Computing
Qunova Computing presents itself as a Korean quantum computing solution venture focused on drug and material design and quantum modeling and optimization solutions.
QuNu Labs Private Limited
QuNu Labs Private Limited develops quantum-safe security products including QKD, QRNG, and post-quantum cryptography platforms.
Quobly
Quobly develops silicon-based quantum computers designed for deployment in existing data-center infrastructure.
QuSecure, Inc.
QuSecure is a security company that provides software for crypto-agility and migration to NIST post-quantum cryptography in critical systems.
Quside Technologies
Quside Technologies develops photonic quantum random number generation products and related platforms for secure connectivity and accelerated randomized computation.
QuSpin
QuSpin develops and manufactures atomic quantum magnetometers for biomagnetic, geophysical, and other measurement applications.
QuTech
QuTech is a Dutch research institute developing quantum computing and quantum internet technologies as a collaboration between TU Delft and TNO.
Rigetti Computing
Rigetti Computing builds superconducting quantum processors and quantum computers, and provides cloud access through its Quantum Cloud Services platform.
Riverlane Ltd
Riverlane Ltd develops quantum error correction hardware, software and services for quantum computing.
Rotonium srl
Rotonium srl is an Italian private company developing room-temperature photonic quantum computers based on photons’ orbital angular momentum for edge and other deployment models.
Rydberg Technologies Inc.
Rydberg Technologies develops atomic quantum devices based on Rydberg atoms for RF sensing, measurement, imaging, and related subsystem hardware.
SandboxAQ
SandboxAQ is a private enterprise SaaS company developing AI and quantum technology applications for simulation, cybersecurity, sensing, and navigation.
SBQuantum
SBQuantum develops diamond-based quantum magnetic sensors and mapping solutions for navigation, defense, public safety, and space-related applications.
SDT Inc.
SDT Inc. provides full-stack quantum computing infrastructure, including control electronics, cryogenic machinery, pre-configured quantum computers, and a hybrid cloud platform.
SEALSQ
SEALSQ develops secure semiconductors, provisioning, and PKI services with a stated focus on post-quantum cryptography and quantum-resistant security.
SEEQC
SEEQC develops a digital quantum computing platform that integrates quantum and classical functions on superconducting chips.
SemiQon
SemiQon is a Finnish private company developing silicon-based quantum hardware and cryo-optimized CMOS solutions for scaling quantum computing.
Shanghai TuringQ Quantum Technology Co., Ltd.
TuringQ is a Shanghai-based quantum company developing photonic chips, quantum computing systems, and related software platforms.
Silent Waves
Silent Waves is a French company that designs and commercializes traveling-wave parametric amplifiers for qubit readout in quantum computers.
Silicon Quantum Computing
Silicon Quantum Computing develops phosphorus-in-silicon quantum processors and related full-stack products, including quantum-enhanced AI and simulation offerings.
Single Quantum
Single Quantum develops superconducting nanowire single-photon detector systems and related light-sensing solutions for quantum and optical measurement applications.
Sparrow Quantum
Sparrow Quantum develops deterministic photonic technology and integrated platforms for scalable quantum computing and networking.
SpecterAI Quantum Security
SpecterAI Quantum Security is a Ho Chi Minh City-founded company offering post-quantum cryptography auditing, compliance assessment and quantum-security training in Vietnam.
SpeQtral Pte Ltd
Singapore-based SpeQtral develops fibre and satellite quantum key distribution systems for quantum-secure communications networks.
SpinQ Technology Inc.
SpinQ Technology Inc. develops superconducting and NMR quantum computers, plus cloud and software platforms for research, education, and industry applications.
Strangeworks, Inc.
Strangeworks builds software and services for optimization, using classical, quantum-inspired, and quantum computing resources.
Superquantum
Superquantum builds a software stack for fault-tolerant quantum computers covering resource estimation, optimization, orchestration and execution.
Sygaldry Technologies, Inc.
Sygaldry Technologies, Inc. says it is building quantum-accelerated AI servers that combine multiple qubit modalities for AI training and inference.
Terra Quantum
Terra Quantum offers Quantum as a Service covering quantum algorithms, quantum computing, and quantum security.
ThinkQuantum S.r.l.
Italian University of Padua spin-off developing quantum communication, QKD, and QRNG technologies for cyber security and communication systems.
TOPTICA Photonics SE
TOPTICA Photonics SE develops and manufactures laser systems for science, industry, and quantum technology applications.
Toshiba Quantum Technology
Toshiba Quantum Technology is a Toshiba division focused on quantum-safe networking, including QKD, PQC, and quantum key management products.
UbiQD, Inc.
UbiQD develops and manufactures quantum dot materials for agriculture, clean energy, security, and related advanced-materials applications.
Unitary Foundation
Unitary Foundation is a 501(c)(3) nonprofit that supports the quantum technology ecosystem through microgrants, research, and open-source community activities.
Universal Quantum Ltd.
Universal Quantum Ltd. is a private quantum-computing company developing utility-scale trapped-ion quantum computers with a modular architecture.
Vector Atomic
Vector Atomic develops atomic clocks, synchronization hardware, and inertial sensors for navigation, communications, and gravity measurement applications.
Vescent Technologies, Inc.
Vescent Technologies designs and manufactures lasers, optical frequency combs, and control systems for quantum timing, sensing, networking, and computing applications.
Vexlum
Vexlum is a Finland-based spin-off developing VECSEL semiconductor lasers for quantum technology, medicine, and semiconductor-industry applications.
Welinq
Welinq develops quantum networking solutions, including quantum links, memory-based storage, and software for modular quantum computing and quantum communication networks.
Wolfspeed, Inc.
Wolfspeed is a vertically integrated silicon carbide company whose TSiC optical-grade substrates target AR optics and quantum computing.
Xanadu Quantum Technologies
Xanadu Quantum Technologies is a Canadian quantum computing company developing photonic quantum computers and open-source quantum software.
Zurich Instruments AG
Zurich Instruments AG develops quantum control electronics and precision test instruments, including systems for qubit control and readout at scale.
ZuriQ
ZuriQ is an ETH Zürich spin-off developing trapped-ion quantum hardware based on a native two-dimensional trap architecture.