Quantum Hardware Directory
Your complete guide to quantum hardware vendors. Compare QPUs, control systems, cryogenics, and components from 540+ companies worldwide.
QPU Manufacturers
Quantum Processing Units from superconducting to photonic
Control Systems
Electronics, microwave, and pulse control systems
Cryogenics
Dilution refrigerators and cooling solutions
Components
Lasers, optics, cables, and enabling technologies
Cloud Services
Quantum cloud access and QaaS platforms
Qubit Technologies
Featured Hardware Vendors
View all →Companies with verified technical specifications and qubit counts.
D-Wave
D-Wave is the pioneer of commercial quantum annealing systems, publicly traded on NYSE (QBTS). The company completed a $400 million ATM equity offering in Q2 FY 2025, achieving record cash balance of $836.2 million. Q3 FY 2025 revenue reached $3.7M (+100% YoY), with YTD revenue of $21.8M (+235% YoY). Stock rose 220%+ in 2025. December 2025: Announced Qubits 2026 quantum computing user conference (January 27-28, 2026, Boca Raton, FL) featuring speakers from Anduril, AT&T, Davidson Technologies, Lighthouse DIG, North Wales Police, PolarisQB, Q-Alliance, Quantum Coast Capital, TECNALIA, and Unissant. Created dedicated U.S. Government Business Unit led by Jack Sears Jr. (VP of U.S. Government Solutions) with 25+ years defense/aerospace experience for federal contracts and secure systems meeting government requirements. FY 2024 bookings exceeded $23 million (+120% YoY), including €10M Q4 booking for 50% Advantage2 capacity in Italy. Demonstrated quantum computational supremacy on real-world problems (Science journal). November 2025: Advantage2 quantum computer deployed at Davidson Technologies (Huntsville, AL) for U.S. government and national defense applications. BASF partnership: hybrid-quantum application reduced manufacturing scheduling from 10 hours to 5 seconds with 14% reduction in lateness. Major partnerships: BASF, E.ON, GE Vernova, UK NQCC, Nikon, NTT Data, NTT DOCOMO, Sharp Corporation, University of Oxford. Market positioning: practical quantum advantage for optimization, strong government focus. Analyst rating: Strong Buy.
Infleqtion
In 2025, Infleqtion demonstrated a 16x16 neutral atom array - the largest reported array of its kind in the UK - as part of the SQALE project at the NQCC, marking a crucial step towards building fault-tolerant quantum processors. The company's commercial platform is built around a 1,600-qubit lattice, the largest neutral-atom array reported to date, achieving an entangling-gate fidelity of 99.73%. In September 2025, Infleqtion agreed to merge with Churchill Capital Corp X in a transaction valuing Infleqtion at a pre-money equity of $1.8 billion. In 2024, Infleqtion was contracted to develop a neutral atom quantum computing testbed for the UK's National Quantum Computing Centre (NQCC), installing the first neutral atom quantum computer at the NQCC in July 2024. The company unveiled the world's largest qubit array comprising 1600 qubits and a 5-year roadmap signaling progress towards delivering fault-tolerant quantum computers. Infleqtion's approach utilizes multiple atomic species within a single system, representing a novel strategy for enhancing performance. 2025 Developments: In September 2025, Infleqtion agreed to go public via $1.8 billion SPAC merger with Churchill Capital Corp X, generating over $540 million in gross proceeds. In June 2025, secured $100 million Series C from Glynn Capital, Counterpoint Global, S32, and SAIC. In June 2025, secured £2.2 million UK funding for Sqale neutral atom quantum computer at NQCC. In July 2025, announced $50 million Illinois partnership over 4 years to build utility-scale neutral atom quantum computer. In October 2025, partnered with Silicon Light Machines for MEMS technology integration
Atom Computing
Atom Computing is a leader in neutral atom quantum computing based in Berkeley, California. Achieved breakthrough in November 2024 through Microsoft collaboration: record 24 logical qubits entangled and Bernstein-Vazirani algorithm on 28 logical qubits with live error correction. November 2025: Selected for DARPA Stage B of Quantum Benchmarking Initiative (up to $15M funding) for utility-scale quantum computing. July 2025: Denmark's EIFO and Novo Nordisk Foundation investing €80M in QuNorth to acquire 'Magne' quantum computer built by Atom Computing and Microsoft. World's first commercially available Level 2 system: 50 logical qubits, 1,200+ physical qubits. Operational by early 2027. August 2025: Appointed Jesper Kamp as Regional Director for Europe (Denmark office). September 2025: Using Colorado Quantum Incubator while expanding Boulder facility. Technology: 99.6% two-qubit gate fidelity, 1,000+ qubit systems with Microsoft Azure integration. Market positioning: neutral atom leader with Microsoft partnership and major European expansion.
IBM Quantum
In 2024-2025, IBM Quantum unveiled its 156-qubit Heron processor featuring a new architectural approach emphasizing modularity and error mitigation, achieving 16 times better performance and a 25-fold increase in speed over 2022 systems. At the inaugural IBM Quantum Developer Conference in 2024, IBM achieved accurate computations on circuits with 100 qubits and gate depths of 100 and 5,000 two-qubit gate operations in under a day's runtime. IBM introduced multi-chip coupling innovations including 'l-couplers' for linking distant chips via cables and 'm-couplers' for tightly connecting adjacent chips, demonstrated with IBM Quantum Flamingo connecting two Heron R2 chips, with the production-ready Flamingo system expected in 2025. IBM's roadmap extends to 2026 with the Kookaburra system demonstrating the first integration of logical qubit processing with quantum memory, and by 2028, the Starling system will operate 200 logical qubits requiring approximately 10,000 physical qubits using IBM's efficient LDPC codes. November 2025: IBM announced the 120-qubit Nighthawk processor with 218 next-generation tunable couplers, enabling 30% more circuit complexity while maintaining low error rates. IBM achieved 10x speedup in quantum error correction decoding over leading approaches, completed one year ahead of schedule. IBM-Cisco partnership announced (November 20, 2025) to build networked distributed quantum computing infrastructure with first proof-of-concept targeted by end of 2030. IBM claims their LDPC codes approach requires 90% fewer qubits than Google's surface code method. IBM Quantum Loon experimental processor demonstrated all key fault-tolerant computing components for the first time.
QuEra Computing
QuEra Computing develops neutral atom quantum computers based on research from Harvard (Mikhail Lukin), MIT (Vladan Vuletic, Markus Greiner). In February 2025, raised $230 million led by Google Quantum AI and SoftBank Vision Fund 2 (previous: $47M October 2024), bringing total funding to $277M+. November 2025: QuEra selected for DARPA Stage B of Quantum Benchmarking Initiative (up to $15M funding), advancing toward utility-scale quantum computing by 2033. The company expanded QuEra Quantum Alliance membership and demonstrated improved neutral atom qubit performance. 2025 Developments: Google Quantum AI's strategic investment validates neutral atom technology approach. Technology uses rubidium neutral atoms controlled by lasers with advancing quantum error correction capabilities. Partnership with Massachusetts Green High Performance Computing Center ($16 million expansion). Algorithmiq joined QuEra Quantum Alliance (December 2024). Focus on building fault-tolerant technology and expanding global partnerships.
Fujitsu
April 2025: Developed world-leading 256-qubit superconducting quantum computer with RIKEN at RQC-FUJITSU Collaboration Center. Planning 1,000-qubit computer for 2026. March 2025: Achieved >99.9% fidelity for single and two-qubit gates with QuTech using diamond spin method (published Physical Review Applied). Launched open-source quantum computer operations software. 2025: Formed joint venture with NEC and Hitachi for cold-atom quantum computer using rubidium atoms. Prototype by 2026, commercial device by 2030. Part of Q-STAR consortium (112 members including Toyota, Toshiba). Japan designated 2025 'first year of quantum industrialization' with ¥1.05 trillion ($7.4B) funding package. November 2025: Joined NTT's OptQC initiative for room-temperature optical quantum computing. Also develops Digital Annealer quantum-inspired optimization technology for enterprise customers. Contributing to Japan's national quantum strategy through government-industry partnerships.
PlanQC
In July 2024, planqc secured €50 million in Series A financing led by CATRON Holding and DeepTech & Climate Fonds, with investment to be used to establish a quantum computing cloud service and develop quantum software for industries such as chemistry, healthcare, and finance. Planqc was selected to lead a €20 million project funded by the German Federal Ministry of Education and Research to build and deploy a 1,000-qubit quantum computer at the Leibniz Supercomputing Centre in Germany through the 'Multicore Atomic Quantum Computing System' (MAQCS) project. In May 2023, planqc received a €29 million order from the German Aerospace Centre (DLR) to develop a scalable neutral-atom quantum computing platform. Planqc's technology, built on award-winning research at the Max-Planck-Institute for Quantum Optics, uses individual atoms confined in crystals of light as qubits, with the company demonstrating scaling of neutral atoms to 1,200 qubits. Investment in neutral atom quantum computing now exceeds $300 million across companies like Planqc, Atom Computing, and Infleqtion.
Xanadu
Xanadu is a Toronto-based photonic quantum computing company pioneering room-temperature quantum computing. In November 2025, announced SPAC merger at $3.6 billion valuation expected to raise ~$500M (including $275M PIPE). Canadian government support: $3.75 million from FedDev Ontario (February 2024), $1M CAD from NORAD modernization contest for battery algorithms. December 2025: Signed MoU with Singapore's A*STAR (Agency for Science, Technology and Research) to advance photonic quantum computing collaboration in the Asia-Pacific region. November 2025: Selected for DARPA Stage B of Quantum Benchmarking Initiative (up to $15M funding), advancing toward utility-scale quantum computing by 2033. Strategic partnerships: A*STAR Singapore (December 2025), Applied Materials (300mm manufacturing process for superconducting sensors), DARPA (QBI Stage B, target full system by 2033), Corning (fiber optic networking), Toyota Research Institute (October 2024), University of Toronto + NRC Canada (battery algorithms), Open Quantum Design (founding partner). Technology: Aurora 12-qubit photonic quantum computer, $10 million photonic packaging facility in Toronto. PennyLane quantum software platform. Market positioning: photonic quantum computing leader going public via SPAC (2025), expanding Asia-Pacific presence through A*STAR partnership, DARPA Stage B selection, room-temperature operation advantage.
Buyer's Guide
Choosing a Qubit Technology
- • Superconducting: Fast gates, established ecosystem, requires mK cooling
- • Trapped-ion: Highest fidelity, long coherence, slower gates
- • Photonic: Room temperature, network-ready, probabilistic gates
- • Neutral-atom: Scalable, reconfigurable, emerging technology
Key Specifications
- • Physical Qubits: Raw hardware qubit count
- • Logical Qubits: Error-corrected qubits (more valuable)
- • 2Q Fidelity: Gate accuracy (target: 99.9%+)
- • Coherence Time: How long qubits hold state