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  AegiQ  Agnostiq Alibaba Quantum Lab  Alice & Bob  Aliro Amazon Braket  AngelQ  Anyon Systems, Inc.  ApexQubit  AQT,  aQuantum  Archer  Arqit  Artiste-qb Net  Atom Computing Atos Quantum Lab  Avanetix  Axion Technologies Baidu Quantum Computing Institute  BardeenQ Labs  BEIT Inc.  Black Brane Systems  Bleximo  BosonQ Psi  Boxcat Inc.  BraneCell  Cambridge Quantum  CIQTEK  Classiq  CogniFrame  ColdQuanta  Craft Prospect  Crypta Labs  Crypto Quantique  Delft Circuits  D-Wave  EeroQ  eleQtron  Elyah  Entanglement, Inc.  Entanglement Partners  Entropica Labs  Equal 1  exaQ.ai Google Quantum AI Groovenauts  h-bar Honeywell Quantum Solutions  Horizon Quantum Computing  HQS Quantum Simulations Huawei HiQ IBM Quantum  ID Quantique (SK Telecom)  InfiniQuant  infinityQ Technology Inc. Intel Labs / Quantum Computing IonQ  IQM  ISARA  JoS QUANTUM  J.P. Morgan FLARE / Quantum Technologies  KetPsiShield  KETS Quantum Security  Kuano  Kunfeng Quantum  LIGENTEC  Light Rider  MagiQ Technologies  Maybell Quantum Industries  Menten AI  Microsoft Quantum  Miraex  Molecular Quantum Solutions  Multiverse Computing  Netramark  NextGenQ  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  QphoX  QpiAI  QRate  Qrypt  qtlabs  Qu & Co  Quacoon  Quandela  Quantastica  QuantCAD  QuantFi  QuantGates  QuantLR  Quantopticon  Quantropi  Quantum Base  Quantum Benchmark  Quantum Blockchains Inc.  Quantum Blocks  Quantum Brilliance  Quantum Circuits, Inc.  Quantum Computing Inc.  Quantum Factory  Quantum eMotion  Quantum Machines  Quantum Mads  Quantum Motion  Quantum Thought  Quantum Xchange Quantum-South  QuantumCTek  QuantWare  QuantyCat  Quarks Interactive  Qubit Engineering  Qubit Pharmaceuticals  Qubitor  Qudoor  QuEra  QuintessenceLabs  QuiX  QunaSys  Qunnect  QuNu Labs  QuSecure  QuTech  Rahko  Raytheon Quantum Engineering and Computing  Rigetti Computing  Riverlane  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

Arqit

IonQ

Quantum Computing Inc.

Quantum eMotion

QuantumCTek

Rigetti Computing (later)

Quantum computer for home

Equal 1

Quantum Brilliance

SpinQ

Qubits roadmap

Alice & Bob 2026: “ideal quantum processor”

Google 2029: 1,000,000

IBM 2021: 127, 2022: 433, 2023: 1,121

Origin Quantum 2021: 64, 2022: 144, 2025: 1,024, 2028: 10,000, 2032: 1,000,000

PsiQuantum ~2025: “begin assembling” 1,000,000

QBoson 2024-2025: 1,000,000 (“coherent quantum computing”)

Xanadu 2026: 1,000,000