The companies that design, build or sell complete quantum computers or quantum-computing platforms, in every modality: superconducting circuits like the illustrated machine, trapped ions, neutral atoms, photons, silicon spins and annealers. This group is not a physical part; a maker is listed under a part only when separately documented as making it, such as its own qubit chips. IBM says it has deployed more than 90 quantum systems and signed more than $1.1 billion of client contracts since 2017 (June 2, 2026).
Superconducting circuits cooled in dilution refrigerators, like the illustrated machine: IBM, Google Quantum AI, Amazon (Ocelot), Rigetti, IQM, Fujitsu and D-Wave (annealing and gate-model). Trapped ions: IonQ and Quantinuum. Neutral atoms: Infleqtion and Pasqal, with Google adding a program in 2026. Photons: Xanadu, Quantum Computing Inc. and NTT’s partner OptQC. Silicon spins: Intel and Hitachi. Microsoft pursues topological qubits (Majorana 1). Only the superconducting makers use the chip, wiring and readout chain shown here; the others rely on lasers, optics and vacuum systems that are context only.
Is a quantum pure play the same as a supplier?
No. Pure plays such as IonQ, Rigetti, D-Wave, Quantinuum, IQM, Infleqtion, Pasqal and Xanadu sell quantum computers, cloud time and services, and most report small revenue against large losses: Quantinuum had $30.9 million of 2025 revenue and a $192.6 million net loss. Suppliers sell the parts inside the machine, such as dilution refrigerators, cables, amplifiers and control electronics, often to several makers and alongside non-quantum lines. A maker appears under a physical part only when it separately makes that part, as IBM, Google, Rigetti and IQM do with their own qubit chips.
IBM, Alphabet, Amazon, Rigetti, IQM, D-Wave and Fujitsu build superconducting machines like the one illustrated and design or fabricate their own qubit chips, while IonQ and Quantinuum use trapped ions, Infleqtion and Pasqal neutral atoms, and Xanadu photons. Quantinuum (48% held by Honeywell), Infleqtion, Xanadu, Horizon Quantum, IQM and Pasqal all listed in 2026; PsiQuantum, QuEra, Atom Computing, Alice & Bob and Origin Quantum are private, and SEEQC has filed for an IPO.
Open each company below for its source and limitations. Sector membership does not establish a confirmed supply contract.
Quantum-computer makers are listed for their own systems, in every qubit technology, not as suppliers of the parts inside. This group has no 3D part to inspect.
Disclosed: D-Wave’s 2025 10-K, Q2 2026 10-Q and releases describe its in-house QPU design, SkyWater wafer supply, the Quantum Circuits acquisition, its roadmap and the CHIPS award.
Disclosed: IBM’s releases describe Nighthawk, Loon and its Albany 300 mm wafer fabrication, its quantum commitment and installed fleet, and Anderon’s CHIPS award.
Disclosed: Intel’s newsroom describes Tunnel Falls and its 300 mm fabrication; Hitachi’s release (partner-disclosed) describes Intel’s 18A-based qubit process and PDK.
Disclosed: IonQ’s Q2 2026 10-Q and results release give revenue, the 2025–2026 acquisitions and the SkyWater closing; D-Wave’s 2025 10-K names SkyWater as its wafer foundry.
Disclosed: Microsoft’s own feature describes Majorana 1 and its materials stack; DARPA’s QBI page confirms the US2QC final phase; IonQ’s 10-Q names Azure Quantum as a channel.
Disclosed: QuantumCTek’s product pages list its dilution refrigerators, ez-Q Engine, cryogenic cabling and thermometry; its Sept 3, 2026 release says the products serve the Zuchongzhi series and the Tianyan cloud.
Disclosed: Xanadu’s 20-F and Q2 2026 results release describe Aurora, its chip platforms, listing and financials; DARPA lists it in QBI Stage B.
Evidence groupings are not investment ratings. Companies may appear in multiple sectors.
Also in this sector (not publicly listed)
Quobly Not publicly listed
French silicon spin-qubit maker whose QSOI chips are fabricated in STMicroelectronics’ 300 mm Crolles fab on Soitec 28Si FD-SOI wafers; raised a €115M Series A in June 2026 co-led by Bpifrance, SEALSQ and STMicroelectronics.
Superconducting-qubit startup co-founded by John Martinis that leads hardware for an HPE-co-led DARPA Quantum Benchmarking Initiative consortium, with Applied Materials for materials and wafer-level fabrication.
Hefei superconducting quantum-computer maker (Wukong series; the 180-qubit Wukong-180 in 2026) that says it develops chips, measurement and control, cryogenic support and operating software in house. Registered for STAR Market IPO tutoring in Sept 2025 and raised a Pre-IPO round in June 2026; no accepted IPO application was verified.
Shenzhen maker of superconducting quantum computers and NMR teaching machines; raised a RMB 600 million C+ round and started a Pre-IPO round (April 2026). No exchange filing was found.
Tokyo optical quantum-computer start-up; NTT plans to invest under an Aug 3, 2026 alliance, and its first machine, MoQuren, runs at AIST’s G-QuAT. Private.