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 🇨🇦 AbaQus 🇨🇦 Abelian 🇺🇸 Adaptive Finance Technologies 🇨🇦 Advanced Quantum 🇩🇪 AegiQ 🇬🇧 Agnostiq 🇨🇦 Alea Quantum Technologies 🇩🇰 Algorithmiq 🇫🇮 Alice & Bob 🇫🇷 Aliro 🇺🇸 Amazon Braket 🇺🇸 Analog Quantum Circuits 🇦🇺 Anaqor 🇩🇪 AngelQ 🇸🇬 Anuthantra 🇮🇳 Anyon Systems, Inc. 🇨🇦 Anzaetek 🇰🇷 Applied Quantum Software 🇺🇸 Aqarios 🇩🇪 AQSolotl 🇸🇬 AQT 🇦🇹 Aquark Technologies 🇬🇧 Archer Materials 🇦🇺 Arclight 🇨🇳 Arctic Instruments 🇫🇮 Arqit 🇬🇧 ARQUE Systems 🇩🇪 Artificial Brain 🇺🇸 Artiste-qb Net 🇨🇦 Atlantic Quantum 🇺🇸 Atom Computing 🇺🇸 AtomQL 🇸🇮 Atos Quantum Lab 🇫🇷 Axion Technologies 🇺🇸 BardeenQ Labs 🇺🇸 BEIT Inc. 🇵🇱 Bita Quantum AI 🇨🇦 Blackhills Quantum 🇧🇪 Bloq Quantum 🇮🇳 blueqat 🇯🇵 BlueQubit 🇺🇸 Boeing / Quantum 🇺🇸 Bohr Quantum 🇺🇸 BosonQ Psi 🇮🇳 BTQ 🇨🇦 C12 🇫🇷 ChemicalQDevice 🇺🇸 CIQTEK 🇨🇳 Cisco Quantum Labs 🇺🇸 Classiq 🇮🇱 CogniFrame Inc. 🇨🇦 ColdQuanta 🇺🇸 ColibrITD 🇫🇷 Commutator Studios 🇩🇪 Conductor Quantum 🇺🇸 ConScience AB 🇸🇪 Craft Prospect 🇬🇧 Crypta Labs 🇬🇧 Crypto Quantique 🇬🇧 Crystal Quantum Computing 🇫🇷 D-Wave 🇨🇦 Delft Circuits 🇳🇱 Diatope 🇩🇪 Diraq 🇦🇺 Dobslit 🇧🇷 EdenX Quantum 🇷🇴 EeroQ 🇺🇸 Eigensystems 🇦🇺 eleQtron 🇩🇪 enQase 🇺🇸 Entangled Networks 🇨🇦 Entanglement, Inc. 🇺🇸 Entanglement Partners 🇪🇸 EntropiQ 🇺🇸 Entropica Labs 🇸🇬 Ephos 🇮🇹 Equal 1 🇮🇪 Eviden 🇫🇷 evolutionQ 🇨🇦 finQbit 🇵🇱 Fixstars Amplify 🇯🇵 Florence Quantum Labs 🇮🇳 ForeQast 🇨🇦 g2Q Computing 🇮🇹 GenMat 🇺🇸 Good Chemistry Company 🇨🇦 Google Quantum AI 🇺🇸 Great Lakes Crystal Technologies 🇺🇸 Groove Quantum 🇳🇱 Groovenauts 🇯🇵 h-bar 🇦🇺 Haiqu 🇺🇸 HEQA Security 🇮🇱 Horizon Quantum Computing 🇸🇬 HQS Quantum Simulations 🇩🇪 Huawei HiQ 🇨🇳 Huayi Quantum 🇨🇳 IBM Quantum 🇺🇸 Icarus Quantum 🇺🇸 Icosa Computing 🇺🇸 ID Quantique 🇨🇭 Iff Technologies 🇺🇸 Infleqtion 🇺🇸 InfinityQ 🇨🇦 Ingenii 🇺🇸 Inspiration-Q 🇪🇸 Intel Labs / Quantum Computing 🇺🇸 IonQ 🇺🇸 IQM 🇫🇮 ISARA 🇨🇦 J.P. Morgan FLARE / Quantum Technologies 🇺🇸 Jij Inc. 🇯🇵 JoS QUANTUM 🇩🇪 KEEQuant 🇩🇪 KETS Quantum Security 🇬🇧 Ki3 Photonics 🇨🇦 kiedos.ART 🇫🇮 Kipu Quantum 🇩🇪 Korea Quantum Computing 🇰🇷 Kuano 🇬🇧 Kvantify 🇩🇰 levelQuantum 🇮🇹 LIGENTEC 🇨🇭 Light Rider 🇺🇸 LightSolver 🇮🇱 Lightsynq 🇺🇸 LQUOM 🇯🇵 LuxQuanta 🇪🇸 MagiQ Technologies 🇺🇸 MagiQware 🇳🇱 Maybell Quantum 🇺🇸 memQ 🇺🇸 Menten AI 🇺🇸 Microsoft Quantum 🇺🇸 MiQro Era 🇨🇳 Miraex 🇨🇭 Molecular Quantum Solutions 🇩🇰 Moth Quantum 🇬🇧 Multiverse Computing 🇪🇸 Munich Quantum Instruments 🇩🇪 Murray Associates of Utica 🇺🇸 NanoQT 🇯🇵 neQxt 🇩🇪 Netramark 🇨🇦 Next Generation Quantum 🇺🇸 Nirvanic Consciousness Technologies 🇨🇦 nodeQ 🇬🇧 Nord Quantique 🇨🇦 Norma 🇰🇷 Nu Quantum 🇬🇧 Nutshell Quantum-Safe 🇦🇹 NVIDIA Accelerated Quantum Research Center 🇺🇸 ODE, L3C 🇺🇸 Orange QS 🇫🇷 ORCA Computing 🇬🇧 Orientom 🇰🇷 Origin Quantum 🇨🇳 Oxford Ionics 🇬🇧 Oxford Quantum Circuits 🇬🇧 ParityQC 🇦🇹 ParTec (QC) 🇩🇪 PASQAL 🇫🇷 Pauli Group 🇨🇦 Phase Space Computing 🇸🇪 Phasecraft 🇬🇧 Photon Queue 🇺🇸 Photonic Inc 🇨🇦 Planckian 🇮🇹 planqc 🇩🇪 Polaris Quantum Biotech 🇺🇸 ProteinQure 🇨🇦 PsiQuantum 🇺🇸 Q.ANT 🇩🇪 Q*Bird 🇳🇱 Q-Bra 🇧🇷 Q-CTRL 🇦🇺 qAIntum.ai 🇺🇸 Qasky 🇨🇳 Qavis 🇹🇷 QBaltic 🇱🇻 Qbit Labs 🇮🇳 Qblox 🇳🇱 QBoard 🇷🇺 QBoson 🇨🇳 qBraid 🇺🇸 Qbrain 🇮🇹 QC Design 🇩🇪 QC Ware 🇺🇸 QC82 🇺🇸 QCentroid 🇪🇸 QDaria 🇳🇴 QDC.ai 🇵🇱 QDeepTech 🇦🇹 Qedma Quantum Computing 🇮🇱 Qilimanjaro Quantum Tech 🇪🇸 Qkrishi 🇮🇳 Qlok 🇺🇸 QMill 🇫🇮 QMware 🇨🇭 Qneuron 🇱🇰 QNu Labs 🇮🇳 Qolab 🇺🇸 Qoro Quantum 🇬🇧 QPerfect 🇫🇷 QphoX 🇳🇱 QpiAI 🇮🇳 Qpurpose 🇩🇰 QRate 🇷🇺 Qruise 🇩🇪 Qrypt 🇺🇸 QSIM+ 🇰🇷 QSimulate 🇺🇸 QTI 🇮🇹 qtlabs 🇦🇹 Qu & Co 🇳🇱 QuAIL Technologies 🇺🇸 QuamCore 🇮🇱 Quandela 🇫🇷 Quanfluence 🇮🇳 Quanmatic Inc. 🇯🇵 Quanscient 🇫🇮 Quantachip Technology 🇨🇳 Quantagonia 🇩🇪 QuantaSense 🇨🇦 Quantasphere 🇬🇧 Quantastica 🇫🇮 QuantCAD 🇺🇸 QuantFi 🇫🇷 QuantGates 🇬🇧 Quantica Computacao 🇮🇳 QUANTier 🇭🇰 Quantinuum 🇺🇸 Quantistry 🇩🇪 Quantized Technologies Inc. 🇨🇦 Quantopticon 🇬🇧 QuantrolOx 🇫🇮 Quantropi 🇨🇦 Quantuloop 🇺🇸 Quantum AI Global 🇮🇳 Quantum Art 🇮🇱 Quantum Base 🇬🇧 Quantum Base Alpha 🇬🇧 Quantum Benchmark 🇨🇦 Quantum Blockchains 🇵🇱 Quantum Blocks 🇩🇪 Quantum Bridge Technologies 🇨🇦 Quantum Brilliance 🇦🇺 Quantum Circuits, Inc. 🇺🇸 Quantum Computing Inc. 🇺🇸 Quantum Corridor Inc. 🇺🇸 Quantum Dice 🇬🇧 Quantum Elements 🇺🇸 Quantum eMotion 🇨🇦 Quantum Industries 🇦🇹 Quantum Machines 🇮🇱 Quantum Mads 🇪🇸 Quantum Motion 🇬🇧 Quantum Optics Jena 🇩🇪 Quantum Realm Computing 🇺🇸 Quantum Research Sciences 🇺🇸 Quantum Rings 🇺🇸 Quantum Risk Advisory 🇫🇷 Quantum Signals 🇫🇷 Quantum Software Technology 🇪🇸 Quantum Source 🇮🇱 Quantum-South 🇺🇾 Quantum Space Systems 🇩🇪 Quantum Technologies Laboratories, Inc. 🇺🇸 Quantum Transistors 🇮🇱 Quantum Xchange 🇺🇸 QuantumAI 🇮🇳 QuantumAstra 🇺🇸 QuantumCTek 🇨🇳 QuantumPrime 🇩🇪 QuantumShift 🇮🇳 QuantWare 🇳🇱 QuantyMize 🇮🇱 Quanvia 🇪🇸 Quarks Interactive 🇷🇴 QuaTI 🇧🇷 QuBalt 🇩🇪 Qubit Engineering 🇺🇸 Qubit Pharmaceuticals 🇫🇷 Qubitekk 🇺🇸 Qubitor 🇸🇬 Qubitrium 🇹🇷 Qubitron AI 🇹🇳 Qubo Consulting 🇨🇦 Qubrid 🇺🇸 QuDef 🇳🇱 Qudoor 🇨🇳 QUDORA 🇩🇪 QuEL, Inc. 🇯🇵 Quemix Inc. 🇯🇵 Quentangle 🇬🇧 QuEra Computing 🇺🇸 Quindata 🇧🇪 QuintessenceLabs 🇦🇺 QuiX Quantum 🇳🇱 QuJiT 🇬🇧 Qulabs 🇮🇳 Quminex 🇨🇦 QunaSys 🇯🇵 Qunnect 🇺🇸 Qunova Computing 🇰🇷 Quobly 🇫🇷 Quoherent 🇺🇸 QuSecure 🇺🇸 Quside 🇪🇸 QuTech 🇳🇱 Raytheon Quantum Engineering and Computing 🇺🇸 Resilient Entanglement 🇺🇸 Rigetti Computing 🇺🇸 RIKEN RQC-Fujitsu Collaboration Center 🇯🇵 Riverlane 🇬🇧 Rotonium 🇮🇹 S-Fifteen Instruments 🇸🇬 Safe Quantum 🇺🇸 SandboxAQ 🇺🇸 SavantX 🇺🇸 SaxonQ 🇩🇪 SCALINQ 🇸🇪 SDT Inc. 🇰🇷 SECQAI 🇬🇧 Seeqc 🇺🇸 Semicyber 🇺🇸 SemiQon 🇫🇮 seQre 🇵🇱 Silicon Quantum Computing 🇦🇺 SilQ Connect 🇨🇦 Single Quantum 🇳🇱 Snowdrop 🇨🇦 softwareQ 🇨🇦 Sparrow Quantum 🇩🇰 SpeQtral 🇸🇬 Spindle 🇸🇬 SpinQ 🇨🇳 SQE 🇺🇸 SQS 🇺🇸 Stafford Computing 🇺🇸 Strangeworks 🇺🇸 Synergy Quantum 🇨🇭 Tencent Quantum Lab 🇨🇳 Terra Quantum 🇨🇭 Tokyo Quantum Computing 🇯🇵 Toshiba Quantum Information Group 🇯🇵 TreQ 🇬🇧 TrevasQ 🇮🇳 Turing 🇺🇸 TuringQ 🇨🇳 Unitary Zero Space 🇫🇮 Universal Quantum 🇬🇧 VeriQloud 🇫🇷 Vortex Quantum Computing 🇸🇬 Welinq 🇫🇷 VIQTHOR 🇫🇷 Xanadu 🇨🇦 XeedQ 🇩🇪 XT Quantech 🇨🇳 yiyaniQ 🇨🇦 YQuantum 🇨🇭 ZebraKet 🇨🇦 Zhejiang Jiuzhou Quantum Technologies 🇨🇳 Zhongchuangwei Quantum 🇨🇳 Zurich Instruments 🇨🇭 ZuriQ 🇨🇭
Pure-play shares publicly traded
Horizon Quantum Computing (later)
Quantinuum (later)
Quantum computer for home
CIQTEK (experimenting rather than programming)
Quantum Brilliance (edge computing, not intended for use in classroom)
Quantum Computing Inc. (entropy quantum computers, photonic reservoir computers)
SaxonQ (mobile, freely gate programmable)
SpinQ (fully programmable)
XeedQ (mobile quantum processor)
Qubits roadmap
Alice & Bob 2030: 100 logical qubits (2,000 “Cat qubits”)
ARQUE Systems ~2025: 10, 2027: 100, ~2030: 10,000, ~2033: 1,000,000
Atom Computing 2023: 1,180
Diraq ~2025: 100, ~2028: 1,000, 2035-40: 1,000,000, 2050: 1,000,000,000
Fujitsu / RIKEN 2023: 64, 2026: 1,000+
Google 2024: 105, >2025: 1,000 (1 logical qubit), 2029: 1,000,000
IBM 2023: 1,121
Infleqtion 2024: 1,600 (2 logical qubits), 2026: 8,000 (10+ logical qubits), 2028: 40,000 (100+ logical qubits)
IonQ 2024: 35, 2025: 64, 2026: 256, 2027: 384, 2028: 1,024 (“algorithmic qubits”)
Origin Quantum 2025: 1,024, 2028: 10,000, 2032: 1,000,000
Oxford Ionics 2025: 16-64, 2026: 256+ (16+ logical qubits), 2027: 10,000+ (700+ logical qubits)
PASQAL 2024-25: 1,000-, 2026-27: 10,000-, >2028: 128+ logical qubits
PsiQuantum ~2025: 1,000,000 (“begin assembling”)
QBoson 2024: 550 (“coherent optical quantum computing”)
Quandela 2024: 12, 2025: 24 (1 logical qubit), 2026: 48, 2027: 100 (10 logical qubits)
Quantinuum 2025: 96 (~50 logical qubits), 2027: 192 (~100 logical qubits), 2029: 1,000’s (100’s logical qubits)
Quantum Brilliance ~2025: ~50
QuEra 2024: 256+ (10 logical qubits), 2025: 3,000+ (30 logical qubits), 2026: 10,000+ (100 logical qubits)
Rigetti Computing 2023: 84
Silicon Quantum Computing 2023: 10, <2030: 100 (“embodying error correction”)
Xanadu 2026: 1,000,000
XeedQ 2026: 256+
