Quantum computing stocks

IonQ, Inc. specializes in the creation of advanced, general-purpose quantum computing systems. The company provides customers with access to its 20-qubit quantum computers. This access is facilitated through prominent third-party cloud platforms, such as Amazon Web Services' (AWS) Amazon Braket, Microsoft's Azure Quantum, and Google's Cloud Marketplace, as well as directly via IonQ's own proprietary cloud service. Founded in 2015, IonQ, Inc. is headquartered in College Park, Maryland.

Quantinuum Inc. manufactures and develops quantum computing hardware and software in United States and Internationally. The company develops a quantum computing platform that offers solutions, such as hardware platforms, developer tools, application libraries, and solution-targeted intellectual property. Its integrated quantum computing platform combines quantum hardware systems and middleware with application software designed to make quantum computing deployable in real-world environments. The company was founded in 2021 and is based in Broomfield, Colorado.

Rigetti Computing, Inc. operates as a full-stack quantum computing enterprise. This company develops and manufactures both quantum computers and the crucial superconducting quantum processors that enable their operation. Its sophisticated machines are made accessible through diverse cloud environments—public, private, or hybrid—via its specialized Quantum Cloud Services platform. The firm was established in 2013 and has its headquarters in Berkeley, California.

Operating globally, D-Wave Quantum Inc. specializes in developing and supplying quantum computing systems, software, and related services. Their offerings include Advantage, a pioneering fifth-generation quantum computer, and Launch, an onboarding service designed for quantum computing adoption. The company also provides Ocean, a comprehensive suite of open-source programming tools. Furthermore, Leap is a cloud-based service that enables real-time interaction with a live quantum computer. This service further provides access to Advantage, along with hybrid problem-solving tools, the Ocean Software Development Kit, live code samples, demonstrations, learning resources, and a vibrant developer community. Additionally, D-Wave provides a dedicated "D-Wave Launch" professional service, guiding enterprises from initial problem identification through to production deployment of quantum applications. Their quantum solutions are leveraged across various domains such as artificial intelligence, materials sciences, drug discovery, scheduling, cybersecurity, fault detection, and financial modeling. They serve industries including manufacturing, logistics, financial services, and life sciences, among others. D-Wave Quantum Inc. is headquartered in Burnaby, Canada.

Xanadu Quantum Technologies Inc. specializes in the creation and delivery of photonic quantum computing solutions, encompassing both sophisticated hardware and versatile software platforms. Their hardware offerings include cloud-accessible "x-series" photonic quantum computers, which boast features such as programmable quantum gates and advanced photon-number resolving detectors. On the software front, Xanadu provides a suite of tools: Pennylane: A Python library for quantum programming that supports differentiable quantum programming, facilitating integration with machine learning frameworks and enabling the development of hybrid quantum-classical applications. Catalyst: Designed for just-in-time compilation, it optimizes quantum algorithms for enhanced performance. Lightning: A high-performance quantum simulator built for both CPU and GPU architectures, engineered to integrate seamlessly with Pennylane. The company ensures robust support for its users, offering extensive documentation, instructional tutorials, practical guides, and community-driven resources that cover areas like quantum machine learning, quantum chemistry simulations, and various other quantum computing applications. Users also gain access to collaborative opportunities and expert assistance from their team of quantum specialists. Xanadu targets a broad professional audience, including clients in the quantum computing, software development, and machine learning sectors, as well as advanced research and development professionals who utilize high-performance computing and quantum hardware. The company was established in 2016 and operates from its headquarters in Toronto, Canada.

IQM Quantum Computers is a global leader in superconducting quantum computing. The company delivers on-premise quantum computers for supercomputing data centers and research labs and offers full access to its hardware.

Pasqal Holding SA develops neutral-atom quantum computers and provides a full-stack quantum computing platform. The company designs and manufactures quantum processors based on neutral-atom technology and integrates them with high-performance computing environments for hybrid quantum computing applications. Its platform includes quantum hardware, programming, and simulation tools, such as Pulser and Pulser Studio; and cloud-based access that enables users to develop, test, and run quantum algorithms remotely. The company also develops quantum software tools, developer SDKs, emulation capabilities, and cloud services through its Pasqal compute platform to support quantum application development. In addition, it provides consulting, training, and collaborative development of quantum algorithms and applications for various industries, including finance, energy, healthcare, and logistics. Pasqal Holding SA is based in Palaiseau, France.

Infleqtion, Inc., designs and builds quantum computers, precision sensors, and quantum software for governments, enterprises, and research institutions. It offers quantum computers, quantum RF systems, quantum clocks, inertial navigation solutions, glass cells, cold atom systems, ultra-cold atom systems, and accessories. The company also provides electronic products, such as atom chip drivers, instrument control systems, coil drivers, direct digital synthesizers, and Z coil drivers. It serves commercial and defense companies, national labs, and universities. Infleqtion, Inc. was formerly known as ColdQuanta, Inc. and changed its name to Infleqtion, Inc. in January 2026. The company was founded in 2007 and is headquartered in Louisville, Colorado with additional offices in Chicago, Illinois; Madison, Wisconsin; Boulder, Colorado; Melbourne, Australia; and Oxford, United Kingdom.

Quantum Computing, Inc. (QUBT) is a Virginia-based technology firm dedicated to developing advanced software solutions for quantum computing. A cornerstone of their offerings is Qatalyst, a quantum application accelerator designed to empower developers. This platform allows users to design and execute 'quantum-ready' applications on conventional computing systems, ensuring seamless transition and compatibility with actual quantum hardware. Furthermore, QCI provides access to a variety of leading quantum processing units (QPUs), including D-Wave, Rigetti, and IonQ. The company primarily serves commercial enterprises and government organizations. Founded in 2018 and headquartered in Leesburg, Virginia, Quantum Computing, Inc. was previously known as Innovative Beverage Group Holdings, Inc.

BTQ Technologies Corp. specializes in developing cutting-edge computer-based solutions for post-quantum cryptography, particularly for blockchain and related technological applications. Among its key offerings is PQScale, a scaling mechanism that utilizes zero-knowledge proofs to compress lattice-based post-quantum signatures, thereby optimizing speed and reducing costs. Another product, Keelung, provides an intuitive toolkit for zero-knowledge proof development, complete with a domain-specific language integrated into Haskell and a dedicated compiler. For hardware-accelerated zero-knowledge computations, the company offers Kenting. Additionally, BTQ provides Quantum Proof-of-Work (QPoW), an energy-efficient, next-generation consensus algorithm that leverages Noisy Intermediate Scale Quantum (NISQ) hardware to authorize blockchain transactions. The company's portfolio also features QRiNG, a toolkit for generating quantum random numbers; Preon, which lays the groundwork for a resilient, future-proof post-quantum signature scheme; and QByte, a quantum risk calculator. Founded in 1983, BTQ Technologies Corp. is headquartered in Vancouver, Canada.

Arqit Quantum Inc. provides cybersecurity services through satellite and terrestrial platforms in the United Kingdom. It offers QuantumCloud, a Platform as a Service that creates unbreakable software encryption keys. The company also provides maintenance and support, and professional services. Arqit Quantum Inc. is based in London, the United Kingdom.

Cisco can distribute quantum-safe capabilities through network, secure-access, and enterprise-security products, including software-based router retrofits.

Cisco has a quantum-switch prototype explicitly designed to interconnect quantum computers from different vendors, making quantum networking a direct strategic product opportunity.

Helsinki, Finland-based SSH Communications Security Oyj, established in 1995, specializes in delivering advanced cryptography and cybersecurity solutions across a global footprint encompassing the Americas, Asia Pacific, Europe, the Middle East, and Africa. The company's diverse product portfolio features Deltagon Secure Email for robust email encryption, Deltagon Secure Sign to ensure the security, encryption, and verification of confidential e-signatures, and Deltagon Secure Forms for building, managing, and customizing electronic forms. It also offers Deltagon Secure Rooms, a protected digital workspace for storing, sharing, and collaborating on sensitive information. Beyond the Deltagon suite, SSH provides PrivX, an automated solution for privileged access management tailored for hybrid cloud environments, and the Universal SSH Key Manager, a zero-trust encryption key management system that automates compliance with security standards. Additional offerings include Tectia Ssh Client/Server for secure file transfers, remote access, and tunneling, as well as Tectia SSH Server for z/OS, a specialized secure file transfer software. Furthermore, SSH NQX delivers quantum-resistant encryption software designed to secure the transport of Ethernet and IP traffic over private and public networks.

Established in 2009 and based in Hefei, China, QuantumCTek Co., Ltd. specializes in delivering secure information and communication technology (ICT) solutions leveraging cutting-edge quantum principles. The company's extensive product portfolio includes quantum key distribution terminals, secure channel and network switching systems, and advanced encryption applications for both fixed-line and mobile communications. Additionally, QuantumCTek develops educational systems and scientific instruments. Its component offerings feature crucial items such as single-photon detectors and quantum random number generators. Furthermore, the company engineers a range of sophisticated devices, including the QCL-100 high-speed picosecond pulsed laser, periodically poled lithium niobate waveguides, geiger-mode InGaAs avalanche photodiodes, microprocessor-compensated variable optical attenuators, QFPS fiber phase shifters, and both manual (QMPC-100) and dynamic (QEPC-100) polarization controllers. Complementing its hardware, QuantumCTek provides comprehensive software for network and element management and control. The company primarily caters to critical sectors like government, financial institutions, and the energy industry.

MKS supplies lasers and vacuum equipment used in quantum research and the cryogenic equipment stack.

MKS supplies tunable lasers and vacuum-related equipment used in quantum research and manufacturing. The competition's modality-agnostic hardware push can increase indirect demand for specialized optical and vacuum equipment, but quantum remains a small part of MKS's diversified revenue base.

Trapped-ion systems require precision lasers, vacuum equipment, and related process hardware. MKS supplies tunable lasers and vacuum-related equipment used in quantum research and production, creating indirect demand exposure as federally funded manufacturing moves toward qualification and scale.

Coherent is specifically identified as a provider of optical-terminal components and supplied high-capacity optical transceivers for a QKD deployment.

Coherent supplies optical transceivers and components used in quantum-secure optical links, but quantum networking is one application within a diversified photonics business.

Quantum optical networks require lasers, modulators, detectors, and high-speed optical transceivers. Coherent is identified as a supplier of optical-terminal components and has a demonstrated role providing high-capacity transceivers for quantum-secure fiber links, creating incremental demand exposure if the demonstration leads to network procurement.

Oxford Instruments’ NanoScience division supplies dilution-refrigeration systems for quantum-computing hardware.

IBM has a leading PQC critical-infrastructure position and can distribute Quantum Safe capabilities through enterprise technology, cloud, mainframe, and consulting channels.

IBM commercializes cloud-based access to quantum systems and can participate in the ecosystem growth generated by additional processor deployments.

IBM is a leading hyperscaler that offers native QCaaS via IBM Quantum and dominates the enterprise quantum cloud market. It is also a primary beneficiary of massive funding, receiving $1 billion to establish the nation's first purpose-built, pure-play quantum foundry for advanced superconducting quantum wafers, which heavily subsidies its manufacturing roadmap.

IBM builds quantum hardware and operates a quantum cloud and software ecosystem. A federal benchmark for scientifically relevant fault-tolerant systems can validate IBM's roadmap and increase demand for its Qiskit, cloud access, hardware, and enterprise services, while also increasing execution pressure.

Alphabet is identified through Google Quantum AI and Google Cloud quantum-as-a-service offerings, placing it in the cloud-platform category.

Google develops quantum hardware and could participate, but no event-specific manufacturing or award pathway is identified.

Google is identified as a large-scale quantum competitor with a comparable roadmap, while NVIDIA’s CUDA-Q layer competes with Google Cirq.

Microsoft provides a quantum cloud and software access layer, with less direct hardware exposure than system developers.

Azure Quantum can capture indirect spending from greater quantum hardware availability and hybrid quantum-classical workloads, without a disclosed event-specific contract.

Microsoft’s relevant exposure is primarily Azure Quantum’s developer and cloud ecosystem, which competes with NVIDIA’s CUDA-Q hybrid software layer rather than supplying the deployed QPU.

Microsoft operates Azure Quantum as a cloud and software access layer. More credible fault-tolerant hardware and DOE validation can increase demand for Azure-based hybrid quantum-classical development, while the competition also creates pressure to secure differentiated hardware access and maintain quantum software relevance.

Keysight supplies control, microwave, signal-processing, and measurement equipment around quantum devices rather than operating a competing QPU platform.

Keysight supplies quantum control, microwave, signal-generation, measurement, and validation equipment. As Anderon and its customers move from wafer production into device qualification and system deployment, demand for control and test equipment can increase, although no transaction-specific order is disclosed.

DOE-funded systems must undergo technical planning, verification, validation, and full-stack benchmarking. Keysight supplies microwave control, signal-generation, measurement, and validation equipment used around quantum devices, creating indirect test-and-measurement demand as applicants build prototypes and prepare for independent evaluation.

Keysight is an enabling-equipment supplier to quantum hardware developers. D-Wave's funded R&D and scaling program should increase demand for microwave control, signal-generation, measurement, and validation equipment needed to develop and qualify superconducting quantum systems, although no D-Wave-specific purchase is disclosed.

SkyWater manufactures Superion chips, giving it direct positive exposure to IonQ’s trapped-ion product commercialization even though SkyWater is not itself the system vendor.

SkyWater remains an operating foundry subsidiary serving commercial, aerospace, and defense customers despite being owned by IonQ.

SkyWater is the identified manufacturing partner for IonQ’s Superion platform. A confirmed South Korean deployment provides additional potential utilization and qualification demand for SkyWater-produced Superion chips, although the contract’s pricing and unit economics are undisclosed.

Intel's cryo-CMOS control electronics are technically aligned with dilution-refrigerator systems, creating meaningful but indirect equipment-spending exposure.

Intel supplies cryogenic control technology relevant to quantum systems installed and evaluated at Roadrunner. Increased deployment of dilution refrigerators and quantum processors can create incremental demand for Intel’s Horse Ridge cryo-CMOS technology, although no event-specific order is disclosed.

Honeywell is classified as PURE_PLAY_HARDWARE as it is the majority owner of Quantinuum, which designs trapped-ion QPUs.

Honeywell is the majority owner of Quantinuum, a major player in trapped-ion quantum computing. Quantinuum benefits from cloud platform distributions, and strategic grants help validate its trapped-ion roadmap.

Based in Canada, Quantum eMotion Corp. specializes in pioneering cryptographic solutions that harness quantum random number generators. The company designs and delivers secure data and communication products for various industries, including financial institutions, military operations, mobile networks, and internet service providers. Established in 2007, this Montreal-based entity previously traded as Quantum Numbers Corp. before rebranding as Quantum eMotion Inc. in June 2021.

NXP is identified as a public company offering quantum-safe hardware, quantum-resistant encryption products, and cryptographic libraries.

NXP supplies quantum-safe hardware and cryptographic components within the post-quantum security market. A combination that pairs quantum-secure technology with a cybersecurity go-to-market platform may support broader demand for embedded secure hardware and cryptographic libraries, although the effect is indirect.

SEALSQ directly sells post-quantum secure elements and wallet protection designed for the affected Bitcoin cryptographic use case.

Quantum Cyber's $100 million capital authorization could support competing quantum-safe software, cryptographic infrastructure, or partnerships. SEALSQ is identified as a public company with commercial post-quantum products shipping, so a better-funded entrant could increase competition for regulated-industry and government migration budgets.

SEALSQ sells semiconductor, PKI, and post-quantum hardware and software products. A more credible quantum-security timeline can accelerate demand for quantum-resistant wallet secure elements, key rotation, and hybrid cryptography, directly supporting its Bitcoin-wallet product opportunity.

Fortinet can capture migration demand through its established network-security platform, which already integrates PQC into its solutions.

Quantum Cyber could use the new capital to expand into network and quantum-safe cybersecurity, increasing competition for secure-networking budgets. Fortinet already integrates PQC into its solutions, giving it demand exposure but also placing it in the competitive set affected by Quantum Cyber's potential expansion.

Cloudflare operates internet-edge infrastructure and has already deployed hybrid post-quantum key exchange.

A public transaction explicitly combining enterprise quantum computing with quantum-safe security can increase customer attention to post-quantum TLS and cryptographic agility. Cloudflare has already deployed hybrid post-quantum key exchange, giving it potential migration-demand capture, although no KQC relationship is disclosed.

Q/C Technologies, Inc. focuses its efforts on pioneering advanced quantum-class photonic computing and developing robust blockchain infrastructure. The company possesses the sole worldwide rights to LightSolver's revolutionary Light-speed Laser Processing Unit (LPU). This innovative optical and laser-driven computing system is engineered specifically for applications within the cryptocurrency sector, offering a substantial energy efficiency improvement of up to 90% while simultaneously outperforming both conventional GPUs and even quantum computing systems.

AmpliTech Group, Inc. specializes in the design, engineering, and manufacturing of microwave component-based amplifiers. Their diverse portfolio encompasses radio frequency (RF) amplifiers and associated subsystems, including low noise amplifiers (LNAs) crucial for receivers in various communication platforms such as Wi-Fi, radar, satellite, base stations, and cellular networks, as well as medium power amplifiers (MPAs) designed to boost output power and gain in transceiver chains. Furthermore, AmpliTech offers an array of specialized microwave devices, including block downconverters for testing satellite access point antennas, 1:2 Tx protection switch panels for satellite communication earth stations, versatile wideband power amplifiers (desktop/benchtop/compact), and waveguide to coaxial adapters for SATCOM and satellite internet gateway systems. Notably, the company produces cutting-edge cryogenic amplifiers, vital for advanced applications spanning quantum computing, medical imaging, RF research, space communications, accelerators, radiometry, and telephony. They also provide cryogenic and non-cryogenic 4G/5G small cell subsystems, essential for high-speed network infrastructure and in-flight Wi-Fi solutions. Beyond its product offerings, AmpliTech provides custom assembly designs, non-recurring engineering (NRE) services on a project basis, alongside IC packaging and lid solutions. Serving critical sectors like aerospace, government, defense, commercial satellite, and wireless industries, AmpliTech distributes its products through a network of sales representatives and distributors across the United States, Europe, the Middle East, and South Asia. Established in 2002, the company's operations are headquartered in Bohemia, New York.

Quantum Cyber's filing identifies planned product and software development, but does not specify the current product portfolio or the exact degree of PQC overlap.

Quantum Cyber N.V. operates as a technology company focused on cybersecurity and quantum computing solutions. The company pursues acquisitions and partnerships in areas including post-quantum cryptography, zero-trust architecture, and national security technologies. It also develops platforms that integrate artificial intelligence (AI) and quantum computing technologies for autonomous control systems used in unmanned aerial, ground, and underwater vehicles, including drones, self-driving vehicles, and robotic fleets. Quantum Cyber N.V. was formerly known as Mainz Biomed N.V. and changed its name to Quantum Cyber N.V. in April 2026. The company is headquartered in Mainz, Germany.

Established in Tel Aviv, Israel, in 2017, HUB Security (Israel) Ltd. provides advanced cybersecurity solutions to clients internationally. Their comprehensive offerings include secure compute platforms, specialized metaverse security, quantum-secured cloud environments, and quantum-based ransomware protection technologies. The company also addresses security needs within the healthcare and artificial intelligence sectors. Additionally, HUB Security develops sophisticated software tools like RAM Commander, a robust platform for reliability prediction, analysis, and various engineering assessments such as reliability block diagrams, Markov chains analysis, FMEA/FMECA, fault tree analysis, and safety evaluations. Their product suite further encompasses D.STORM, a SaaS-based platform designed for Distributed Denial of Service (DDoS) attack simulation, and a dedicated safety assessment package.

ZenaTech, Inc., an enterprise software technology company, develops cloud-based software applications in Canada. It provides cloud-based enterprise software solutions for the medical records industry; software solutions for the automated facility management and center industry; safety and compliance management software and mobile solutions; field service management software and mobile solutions; browser-based enterprise software applications for public safety; and quantum computing solutions. The company also engages in the manufacturing, sale, and distribution of drones. ZenaTech, Inc. was formerly known as ZenaDrone, Inc. and changed its name to ZenaTech, Inc. on October 5, 2020. The company was incorporated in 2017 and is based in Vancouver, Canada.

Archer Materials Limited is an Australian technology company dedicated to the advancement and commercialization of semiconductor devices and sophisticated processor chips. Its work primarily targets applications in quantum computing and medical diagnostics. Key projects include a revolutionary qubit processor chip designed to function at room temperature and integrate seamlessly into modern electronics, alongside pioneering graphene-based lab-on-a-chip technology. The firm, established in Adelaide in 2007, operated as Archer Exploration Limited until adopting its current name in October 2019.

Quantum X Labs Inc is an Israel-based multi-disciplinary quantum technology company focused on the research, development, and commercialization of quantum technologies and intellectual property across sectors including navigation, precision timing, and cybersecurity.

GlobalFoundries has a direct quantum-technology manufacturing role covering chips, cryogenic control electronics, and packaging.

GlobalFoundries is developing a secure domestic quantum foundry serving multiple architectures.

WISeSat.Space Holdings Corp. is a holding company being formed to own WISeSat.Space Corp. and its operating subsidiary, WISeSat.Space AG. WISeSat is an early-stage space technology company developing secure satellite infrastructure and space-based services for trusted communications, digital identity, secure data exchange, and other security-sensitive applications. Its technology combines low Earth orbit satellite connectivity with post-quantum security, authentication, and digital identity capabilities, targeting sovereign, defense, critical-infrastructure, and other high-integrity applications.