Selection of quantum information technology companies, or groups within companies.
Extras: 1) pure-play shares publicly traded, 2) quantum computers you might be able to buy, 3) concrete qubit-count roadmaps.
Companies
1QBit ♦ A*Quantum ♦ Adaptive Finance Technologies ♦ AegiQ ♦ Agnostiq ♦ Algorithmiq ♦ Alibaba Quantum Lab ♦ Alice & Bob ♦ Aliro ♦ Amazon Braket ♦ AngelQ ♦ Anyon Systems, Inc. ♦ ApexQubit ♦ AQT ♦ aQuantum ♦ Archer ♦ Arclight ♦ Arqit ♦ Artificial Brain ♦ Artiste-qb Net ♦ Atom Computing ♦ Atos Quantum Lab ♦ Avanetix ♦ Axion Technologies ♦ Baidu Quantum Computing Institute ♦ BardeenQ Labs ♦ BEIT Inc. ♦ Black Brane Systems ♦ Bleximo ♦ blueqat ♦ BosonQ Psi ♦ Boxcat Inc. ♦ BraneCell ♦ C12 ♦ CIQTEK ♦ Classiq ♦ CogniFrame Inc. ♦ ColdQuanta ♦ Craft Prospect ♦ Crypta Labs ♦ Crypto Quantique ♦ D-Wave ♦ Delft Circuits ♦ Diraq ♦ EeroQ ♦ eleQtron ♦ Elyah ♦ Entangled Networks ♦ Entanglement, Inc. ♦ Entanglement Partners ♦ Entropica Labs ♦ Equal 1 ♦ exaQ.ai ♦ Google Quantum AI ♦ Groovenauts ♦ h-bar ♦ Horizon Quantum Computing ♦ HQS Quantum Simulations ♦ Huawei HiQ ♦ IBM Quantum ♦ ID Quantique (SK Telecom) ♦ Iff Technologies ♦ InfiniQuant ♦ infinityQ Technology Inc. ♦ Ingenii ♦ Intel Labs / Quantum Computing ♦ IonQ ♦ IQM ♦ ISARA ♦ JoS QUANTUM ♦ J.P. Morgan FLARE / Quantum Technologies ♦ KetPsiShield ♦ KETS Quantum Security ♦ Kipu Quantum ♦ Kuano ♦ Kunfeng Quantum ♦ LIGENTEC ♦ Light Rider ♦ MagiQ Technologies ♦ Maybell Quantum Industries ♦ Menten AI ♦ Microsoft Quantum ♦ Miraex ♦ Molecular Quantum Solutions ♦ Multiverse Computing ♦ Netramark ♦ Next Generation Quantum ♦ nodeQ ♦ Nord Quantique ♦ Nordic Quantum Computing Group ♦ Nu Quantum ♦ ODE, L3C ♦ Orange QS ♦ ORCA Computing ♦ Origin Quantum ♦ Oxford Ionics ♦ Oxford Quantum Circuits ♦ ParityQC ♦ Pasqal ♦ Phasecraft ♦ Photonic Inc ♦ PiDust Quantum ♦ Polaris Quantum Biotech ♦ PQSecure ♦ ProteinQure ♦ PsiQuantum ♦ Q.ANT ♦ Q-CTRL ♦ Qapitan Quantum ♦ Qasky ♦ QBaltic ♦ QBee.eu ♦ Qblox ♦ QBoson ♦ qBraid ♦ QC Ware ♦ Qedma Quantum Computing ♦ Qilimanjaro Quantum Tech ♦ Qkrishi ♦ QMware ♦ QphoX ♦ QpiAI ♦ QRate ♦ Qrypt ♦ qtlabs ♦ Qu & Co ♦ Quacoon ♦ Quandela ♦ Quantastica ♦ QuantCAD ♦ QuantFi ♦ QuantGates ♦ QuantLR ♦ Quantinuum ♦ Quantopticon ♦ QuantrolOx ♦ Quantropi ♦ Quantum Base ♦ Quantum Benchmark ♦ Quantum Blockchains Inc. ♦ Quantum Blocks ♦ Quantum Bridge Technologies ♦ Quantum Brilliance ♦ Quantum Circuits, Inc. ♦ Quantum Computing Inc. ♦ Quantum eMotion ♦ Quantum Factory ♦ Quantum Machines ♦ Quantum Mads ♦ Quantum Motion ♦ Quantum-South ♦ Quantum Thought ♦ Quantum Xchange ♦ QuantumCTek ♦ QuantWare ♦ QuantyCat ♦ Quanvia ♦ Quarks Interactive ♦ Qubit Engineering ♦ Qubit Pharmaceuticals ♦ Qubitor ♦ Qudoor ♦ QuEra ♦ QuintessenceLabs ♦ QuiX ♦ Qulabs ♦ QunaSys ♦ Qunnect ♦ QuNu Labs ♦ QuSecure ♦ Quside ♦ QuTech ♦ Rahko ♦ Raytheon Quantum Engineering and Computing ♦ Rigetti Computing ♦ Riverlane ♦ SandboxAQ ♦ SavantX ♦ Seeqc ♦ Semicyber ♦ seQre ♦ Silicon Quantum Computing ♦ softwareQ ♦ SpeQtral ♦ SpinQ ♦ SpinUp AI ♦ Strangeworks ♦ Super.tech ♦ Tencent Quantum Lab ♦ Terra Quantum ♦ Toshiba Quantum Information Group ♦ TuringQ ♦ Unitary Zero Space ♦ Universal Quantum ♦ VeriQloud ♦ Xanadu ♦ Xofia ♦ XT Quantech ♦ Zapata Computing ♦ ZCWei Quantum ♦ Zurich Instruments
Pure-play shares publicly traded
D-Wave (later)
Quantinuum (later)
Quantum computer for home
CIQTEK (experimenting rather than programming)
Equal 1 (not yet available for public)
Quantum Brilliance (not yet available for public)
SpinQ (fully programmable)
Qubits roadmap
Alice & Bob 2026: “ideal quantum processor”
Atom Computing 2021: 100
Diraq ~2025: 100, ~2028: 1,000, 2035-40: 1,000,000, 2050: 1,000,000,000
Google 2029: 1,000,000
IBM 2022: 433, 2023: 1,121, 2024: 1,386+, 2025: 4,158+, 2030: 1,000,000
Origin Quantum 2022: 144, 2025: 1,024, 2028: 10,000, 2032: 1,000,000
Pasqal 2022: 100, 2023: 1,000
PsiQuantum ~2025: “begin assembling” 1,000,000
QBoson 2024-2025: 1,000,000 (“coherent quantum computing”)
Quantum Brilliance ~2025: ~50 (“Quantum Accelerator”)
QuEra 2024: 1,024
Rigetti Computing 2023: 336, 2025: 1,000+, ~2027: 4,000+
Xanadu 2026: 1,000,000
