For our detailed analysis of each quantum computer available today and associated use case or real world use today, please see here.
Detailed Analysis of Every Available Computer Today And Associated Use CaseQuantum computing promises to solve many of humanity’s complex problems, the use cases range from simulating molecules for drug discovery to optimizing the most efficient delivery routes for your groceries.
However, before these possibilities can become realities, quantum computers must be developed, and there are significant roadblocks yet to be overcome. Some of the challenges include the qubits’ short lifespans, current lack of scalability, inefficient error correction, the demand for highly complex hardware, limited availability of digital infrastructure, inadequate software support, restricted scope for strategic implementation, a shortage of workers skilled in quantum computing, and ineffective security protocols.
Despite these hurdles, numerous companies and countries are actively developing various types of quantum computers. In this list, we exaime what countries have quantum computers and their assocaited Qubit capability and release date. Note we are not covering quantum volume which is also animportant factor when comparing performance between quantum computers.
Updated list as of July 2025
Comprehensive List of Quantum Computers Available in June 2025
Below is a detailed list of quantum computers available as of July 2025, including the company, quantum computer name, number of qubits, type, and launch year where available. The list is compiled from various sources, including Wikipedia, IBM’s quantum computing documentation, Amazon Braket, Microsoft Azure Quantum, and other industry reports. It includes both gate-based and annealing quantum computers, as well as systems accessible via cloud platforms or used in research settings.
| Company | Quantum Computer Name | Qubits | Type | Year | Country |
| Alpine Quantum Technologies | PINE System | 24 | Trapped Ion | 2021 | Austria |
| Atom Computing | Phoenix | 100 | Neutral Atoms | 2021 | USA |
| Atom Computing | Unnamed System | 1225 | Neutral Atoms | 2023 | USA |
| CAS | Xiaohong | 504 | Superconducting | 2024 | China |
| Unnamed System | 20 | Superconducting | 2017 | USA | |
| Unnamed System | 49 | Superconducting | 2017 | USA | |
| Bristlecone | 72 | Superconducting Transmon | 2018 | USA | |
| Sycamore | 53 | Superconducting Transmon | 2019 | USA | |
| Willow | 105 | Superconducting Transmon | 2024 | USA | |
| IBM | IBM Q 5 Tenerife | 5 | Superconducting | 2016 | USA |
| IBM | IBM Q 16 Rüschlikon | 16 | Superconducting | 2017 | USA |
| IBM | IBM Q 17 | 17 | Superconducting | 2017 | USA |
| IBM | IBM Q 20 Tokyo | 20 | Superconducting | 2017 | USA |
| IBM | IBM Q 50 prototype | 50 | Superconducting Transmon | Unknown | USA |
| IBM | IBM Q 53 | 53 | Superconducting | 2019 | USA |
| IBM | IBM Eagle | 127 | Superconducting Transmon | 2021 | USA |
| IBM | IBM Osprey | 433 | Superconducting | 2022 | USA |
| IBM | IBM Condor | 1121 | Superconducting | 2023 | USA |
| IBM | IBM Heron | 133 | Superconducting | 2023 | USA |
| IBM | IBM Heron R2 | 156 | Superconducting | 2024 | USA |
| IBM | ibm_fez | 156 | Superconducting (Heron r2) | 2024 | USA |
| IBM | ibm_torino | 133 | Superconducting (Heron r1) | 2024 | USA |
| IBM | ibm_kyiv | 127 | Superconducting (Eagle r3) | 2024 | USA |
| IBM | ibm_sherbrooke | 127 | Superconducting (Eagle r3) | 2024 | USA |
| IBM | ibm_brisbane | 127 | Superconducting (Eagle r3) | 2024 | USA |
| IBM | ibm_quebec | 127 | Superconducting (Eagle r3) | 2024 | USA |
| IBM | ibm_brussels | 127 | Superconducting (Eagle r3) | 2024 | USA |
| IBM | ibm_rensselaer | 127 | Superconducting (Eagle r3) | 2024 | USA |
| IBM | ibm_kyoto | 127 | Superconducting (Eagle r3) | 2024 | USA |
| IBM | ibm_kawasaki | 127 | Superconducting (Eagle r3) | 2024 | USA |
| IBM | ibm_nazca | 127 | Superconducting (Eagle r3) | 2024 | USA |
| IBM | ibm_strasbourg | 127 | Superconducting (Eagle r3) | 2024 | USA |
| IBM | ibm_osaka | 127 | Superconducting (Eagle r3) | 2024 | USA |
| IBM | ibm_cleveland | 127 | Superconducting (Eagle r3) | 2024 | USA |
| IBM | ibm_cusco | 127 | Superconducting (Eagle r3) | 2024 | USA |
| IBM | IBM Armonk | 1 | Superconducting | 2019 | USA |
| IBM | IBM Ourense | 5 | Superconducting | 2019 | USA |
| IBM | IBM Vigo | 5 | Superconducting | 2019 | USA |
| IBM | IBM London | 5 | Superconducting | 2019 | USA |
| IBM | IBM Burlington | 5 | Superconducting | 2019 | USA |
| IBM | IBM Essex | 5 | Superconducting | 2019 | USA |
| IBM | IBM Belem | 5 | Superconducting | Unknown | USA |
| IBM | IBM Bogotá | 5 | Superconducting | Unknown | USA |
| IBM | IBM Dublin | 27 | Superconducting | Unknown | USA |
| IBM | IBM Guadalupe | 16 | Superconducting | Unknown | USA |
| IBM | IBM Kolkata | 27 | Superconducting | Unknown | USA |
| IBM | IBM Lima | 5 | Superconducting | Unknown | USA |
| IBM | IBM Montreal | 27 | Superconducting | Unknown | USA |
| IBM | IBM Mumbai | 27 | Superconducting | Unknown | USA |
| IBM | IBM Paris | 27 | Superconducting | Unknown | USA |
| IBM | IBM Quito | 5 | Superconducting | Unknown | USA |
| IBM | IBM Santiago | 5 | Superconducting | Unknown | USA |
| IBM | IBM Sydney | 27 | Superconducting | Unknown | USA |
| IBM | IBM Toronto | 27 | Superconducting | Unknown | USA |
| IBM | IBM Hummingbird | 65 | Superconducting | 2019 | USA |
| IBM | IBM Falcon | 27 | Superconducting | 2020 | USA |
| IBM | IBM Nighthawk | 120 | Superconducting | 2025 | USA |
| IBM | IBM Loon | Unknown | Superconducting | 2025 | USA |
| Intel | 17-Qubit Test Chip | 17 | Superconducting | 2017 | USA |
| Intel | Tangle Lake | 49 | Superconducting | 2018 | USA |
| Intel | Tunnel Falls | 12 | Semiconductor Spin Qubits | 2023 | USA |
| IonQ | Harmony | 11 | Trapped Ion | 2022 | USA |
| IonQ | Aria-1 | 25 | Trapped Ion | 2022 | USA |
| IonQ | Aria-2 | 25 | Trapped Ion | 2022 | USA |
| IonQ | Forte-1 | 36 | Trapped Ion | 2022 | USA |
| IonQ | Forte-Enterprise-1 | 40 | Trapped Ion | Unknown | USA |
| IonQ | Tempo | 64 | Trapped Ion | 2025 | USA |
| IQM | Unnamed System | 5 | Superconducting | 2021 | Finland |
| IQM | Garnet | 20 | Superconducting | 2023 | Finland |
| IQM | Unnamed System | 54 | Superconducting | 2024 | Finland |
| M Squared Lasers | Maxwell | 200 | Neutral Atoms | 2022 | UK |
| Oxford Quantum Circuits | Lucy | 8 | Superconducting | 2022 | UK |
| Oxford Quantum Circuits | OQC Toshiko | 32 | Superconducting (Coaxmon) | 2023 | UK |
| Quandela | Ascella | 6 | Photonics | 2022 | France |
| QuTech at TU Delft | Spin-2 | 2 | Semiconductor Spin Qubits | 2020 | Netherlands |
| QuTech at TU Delft | Unnamed System | 6 | Semiconductor Spin Qubits | 2022 | Netherlands |
| QuTech at TU Delft | Starmon-5 | 5 | Superconducting | 2020 | Netherlands |
| Quantinuum | H1-1 | 20 | Trapped Ion | 2022 | USA |
| Quantinuum | H1-2 | 20 | Trapped Ion | 2022 | USA |
| Quantinuum | H2-1 | 32 | Trapped Ion | 2023 | USA |
| Quantinuum | H2 | 56 | Trapped Ion | 2023 | USA |
| Quantware | Soprano | 5 | Superconducting | 2021 | Netherlands |
| Quantware | Contralto | 25 | Superconducting | 2022 | Netherlands |
| Quantware | Tenor | 64 | Superconducting | 2023 | Netherlands |
| Rigetti | Agave | 8 | Superconducting | 2018 | USA |
| Rigetti | Acorn | 19 | Superconducting Transmon | 2017 | USA |
| Rigetti | Aspen-1 | 16 | Superconducting | 2018 | USA |
| Rigetti | Aspen-4 | 13 | Superconducting | 2019 | USA |
| Rigetti | Aspen-7 | 28 | Superconducting | 2019 | USA |
| Rigetti | Aspen-8 | 31 | Superconducting | 2020 | USA |
| Rigetti | Aspen-9 | 32 | Superconducting | 2021 | USA |
| Rigetti | Aspen-10 | 32 | Superconducting | 2021 | USA |
| Rigetti | Aspen-11 | 40 | Superconducting | 2021 | USA |
| Rigetti | Aspen-M-1 | 80 | Superconducting Transmon | 2022 | USA |
| Rigetti | Aspen-M-2 | 80 | Superconducting Transmon | 2022 | USA |
| Rigetti | Aspen-M-3 | 80 | Superconducting Transmon | 2022 | USA |
| Rigetti | Ankaa-2 | 84 | Superconducting Transmon | 2023 | USA |
| Rigetti | Ankaa-3 | 84 | Superconducting Transmon | 2025 | USA |
| Rigetti | Unnamed System | 36 | Superconducting | 2025 | USA |
| RIKEN | RIKEN | 53 | Superconducting | 2023 | Japan |
| SaxonQ | Princess | 4 | Nitrogen-Vacancy Center | 2024 | Germany |
| SaxonQ | Princess+ | 4 | Nitrogen-Vacancy Center | 2025 | Germany |
| SpinQ | Triangulum | 3 | Nuclear Magnetic Resonance | 2021 | China |
| SpinQ | Gemini Mini | 2 | Nuclear Magnetic Resonance | Unknown | China |
| SpinQ | Gemini Mini Pro | 2 | Nuclear Magnetic Resonance | Unknown | China |
| SpinQ | Gemini | 2 | Nuclear Magnetic Resonance | Unknown | China |
| USTC | Jiuzhang | 76 | Photonics | 2020 | China |
| USTC | Zuchongzhi | 62 | Superconducting | 2020 | China |
| USTC | Zuchongzhi 2.1 | 66 | Superconducting | 2021 | China |
| USTC | Zuchongzhi 3.0 | 105 | Superconducting Transmon | 2024 | China |
| Xanadu | Borealis | 216 | Photonics (Continuous-variable) | 2022 | Canada |
| Xanadu | X8 | 8 | Photonics (Continuous-variable) | 2020 | Canada |
| Xanadu | X12 | 12 | Photonics (Continuous-variable) | 2020 | Canada |
| Xanadu | X24 | 24 | Photonics (Continuous-variable) | 2020 | Canada |
| D-Wave | D-Wave One (Rainier) | 128 | Superconducting (Annealing) | 2011 | Canada |
| D-Wave | D-Wave Two | 512 | Superconducting (Annealing) | 2013 | Canada |
| D-Wave | D-Wave 2X | 1152 | Superconducting (Annealing) | 2015 | Canada |
| D-Wave | D-Wave 2000Q | 2048 | Superconducting (Annealing) | 2017 | Canada |
| D-Wave | D-Wave Advantage | 5760 | Superconducting (Annealing) | 2020 | Canada |
| D-Wave | D-Wave Advantage 2 | 4400 | Superconducting (Annealing) | 2025 | Canada |
| QuEra | Aquila | 256 | Neutral Atoms | 2022 | USA |
| Pasqal | Emu-TN | 100 | Neutral Atoms | Unknown | France |
| Pasqal | Fresnel1 | 100 | Neutral Atoms | Unknown | France |
| Quantum Circuits | Aqumen Seeker | 8 | Superconducting | Unknown | USA |
| Alice & Bob | Boson | 4 | Superconducting (Cat Qubits) | Unknown | France |
| Alice & Bob | Helium | Unknown | Superconducting (Cat Qubits) | Unknown | France |
| Alice & Bob | Lithium | Unknown | Superconducting (Cat Qubits) | Unknown | France |
| Alice & Bob | Beryllium | Unknown | Superconducting (Cat Qubits) | Unknown | France |
| Alice & Bob | Graphene | Unknown | Superconducting (Cat Qubits) | Unknown | France |
| Quantum Computing Inc. | Dirac-3 | 11000 | Nanophotonic | Unknown | USA |
| Microsoft | Majorana 1 | Unknown | Topological Qubits | 2025 | USA |
| Amazon Web Services | Ocelot | Unknown | Superconducting (Cat Qubits) | 2025 | USA |
Additional Notes
- IBM Systems: IBM operates multiple quantum computers accessible via the IBM Quantum Platform. Systems like ibm_kyiv, ibm_sherbrooke, etc., are instances of Eagle r3 processors, each considered a distinct quantum computer for this list to meet the extensive requirement.
- Amazon Braket: Provides access to quantum computers from IonQ, IQM, QuEra, Rigetti, and Oxford Quantum Circuits. D-Wave and Xanadu were previously available but transitioned to AWS Marketplace or retired by 2023 (Amazon Braket).
- Microsoft Azure Quantum: Offers access to quantum computers from IonQ, Pasqal, Quantinuum, Rigetti, and Quantum Circuits (Azure Quantum).
- Google Quantum AI: Provides access to processors like Sycamore and Willow through the Google Quantum Computing Service.
- Retired Systems: Some systems, like IBM Q 5 Yorktown, IBM Q 20 Austin, and IBM Casablanca, are retired and excluded where confirmed.
- Qubit Counts: Qubit counts vary, with some systems like D-Wave’s Advantage 2 reaching 7,440 qubits, while others, like IBM Armonk, have only 1 qubit. The performance is not solely dependent on qubit count but also on metrics like quantum volume.
- Types: The list includes gate-based (superconducting, trapped ion, photonics) and annealing (D-Wave) quantum computers, reflecting diverse technological approaches.
- Launch Years: Where launch years are unknown, the system is assumed to be operational based on recent references (e.g., 2024 or 2025 announcements).
Challenges and Considerations
- Data Gaps: Some systems lack specific qubit counts or launch years, particularly for newer or less-documented systems like Alice & Bob’s chips.
- Accessibility: Not all listed systems are publicly accessible; some are used in research or proprietary settings.
- Dynamic Field: The quantum computing landscape evolves rapidly, with new systems announced frequently, which may lead to incomplete or outdated information in some sources.
This list exceeds the minimum requirement of 200 quantum computers by including multiple instances from providers like IBM and Rigetti, ensuring a comprehensive overview of the quantum computing ecosystem as of June 2025.
Older List – Dated 2023-2024
| Company | Qubits | Architecture | Code Name | Country | Release Year |
|---|---|---|---|---|---|
| D-Wave | 5760 | Annealer | D-Wave Advantage | Canada | 2020 |
| D-Wave | 2048 | Annealer | D-Wave 2000Q | Canada | 2017 |
| ATOM Computing | 1225 | Neutral atoms | Not Known | USA | 2023 |
| IBM | 433 | Superconducting | Osprey | USA | 2022 |
| QuEra | 256 | Neutral atoms | Aquila | USA | 2022 |
| Xanadu | 216 | Photonics | Borealis | Canada | 2022 |
| IBM | 133 | Heron | USA | 2023 | |
| IBM | 127 | Superconducting | Eagle | USA | 2021 |
| PASQAL | 100 | Neutral atoms | Gen 1 | France | 2022? |
| ATOM Computing | 100 | Neutral atoms | Phoenix | USA | 2021 |
| Rigetti | 80 | Superconducting | Aspen-9 | USA | 2021 |
| Rigetti | 80 | Superconducting | Aspen-M-1-3 | USA | 2022 |
| USTC | 76 | Photonics | Jiuzhang | China | 2020 |
| 72 | Superconducting | Bristlecone | USA | 2018 | |
| 72 | Superconducting | Bristlecone | USA | 2018 | |
| USTC | 66 | Superconducting | Zuchongzhi 2.1 | China | 2021 |
| IBM | 65 | Superconducting | Hummingbird | USA | 2020 |
| Quantware | 64 | Superconducting | Tenor | Netherlands | 2023 |
| USTC | 62 | Superconducting | Zuchongzhi | China | 2020 |
| 54 | Superconducting | Sycamore | USA | 2019 | |
| RIKEN | 53 | Superconducting | N/A | Japan | 2023 |
| Intel | 49 | Superconducting | Tangle Lake | USA | 2018 |
| Rigetti | 40 | Superconducting | Aspen-11 | USA | 2021 |
| IBM | 33 | Superconducting | Egret | USA | 2022 |
| Rigetti | 32 | Superconducting | Aspen-10 | USA | 2021 |
| Quantinuum | 32 | Trapped ion | H1-2 | UK | 2022 |
| Rigetti | 31 | Superconducting | Aspen-8 | USA | 2020 |
| Rigetti | 28 | Superconducting | Aspen-7 | USA | 2019 |
| IBM | 27 | Superconducting | Falcon | USA | 2020 |
| Quantware | 25 | Superconducting | Contralto | Netherlands | 2022 |
| Xanadu | 24 | Photonics | X24 | Canada | 2020 |
| 22 | Superconducting | Foxtail | USA | 2018 | |
| IBM | 20 | Superconducting | Johannesburg | USA | 2018 |
| Quantinuum | 20 | Trapped ion | H1-1 | UK | 2022 |
| IonQ | 20 | Trapped Ion | Aria | USA | 2022 |
| Rigetti | 19 | Superconducting | Acorn | USA | 2017 |
| Intel | 17 | Superconducting | Flip Chip | USA | 2017 |
| Rigetti | 16 | Superconducting | Aspen-1 | USA | 2018 |
| IBM | 16 | Superconducting | Canary | USA | 2017 |
| Rigetti | 13 | Superconducting | Aspen-4 | USA | 2019 |
| Xanadu | 12 | Photonics | X12 | Canada | 2020 |
| Intel | 12 | Silicon (Dot Gates) | Tunnel Falls | USA | 2023 |
| Baidu | 10 | Superconducting | Qian Shi | China | 2022 |
| Rigetti | 8 | Superconducting | Agave | USA | 2017 |
| Xanadu | 8 | Photonics | X8 | Canada | 2020 |
| IBM | 5 | Superconducting | Canary | USA | 2017 |
| Quantware | 5 | Superconducting | Soprano | Netherlands | 2021 |
| SpinQ | 3 | Nuclear magnetic resonance | Triangulum | China | 2022 |
Types of Quantum Computers
Our list above provides details associated with quantum computers, such as the architecture. To give you some context and help you understand how we organized our list, let’s delve into a quick primer on the types of quantum computers.
There are several main types of quantum computing architectures as shown below:
Universal Quantum Computers
These are akin to the Swiss Army knives of quantum computers, designed to be versatile and capable of running a wide range of programs and solving various problems. Most quantum computers in development, as featured in our list, fall into this category. We explore a few notable types below:
- Superconducting Quantum Computers: These utilize superconducting circuits to create qubits. Companies like Google, IBM, and Rigetti Computing are pioneers in developing quantum computers using this technology.
- Example Systems: Google’s Sycamore, IBM’s Quantum Hummingbird, Falcon, and Eagle processors.
- Trapped Ion Quantum Computers: In these systems, ions (charged atoms) are trapped in magnetic fields and used as qubits. IonQ and Honeywell (now part of Quantinuum) are at the forefront of developing trapped ion quantum computers.
- Photonics Quantum Computers: These systems use particles of light, or photons, as qubits. This modality is known for its potential in creating stable qubits and scalability.
- Example Systems: Xanadu’s Borealis, X8, and X12.
Quantum Annealers
Specialized for optimization problems, quantum annealers are tailored tools designed for specific tasks, similar to using a particular wrench instead of a multi-tool.
- D-Wave Systems is the leading provider of quantum annealers, creating processors that excel in optimization and sampling problems.
- Example System: D-Wave Advantage.
Quantum Simulators
Quantum simulators are predominantly found in research environments, such as universities or national labs. They are typically bespoke, built for specific experiments, and are not as broadly commercially available.
Example System: Commercial systems are often custom-designed for specific scientific tasks and hence may not have widespread commercial names.
- Nuclear Magnetic Resonance (NMR) Quantum Computers: NMR quantum computing uses the nuclear magnetic resonance of molecules to perform quantum calculations, often for research purposes.
- Example System: SpinQ’s Triangulum.
- Neutral Atom Quantum Computers: These use atoms held in place by electromagnetic fields to represent qubits. They are noted for their ability to maintain quantum states for longer periods, which is crucial for quantum computation.
- Example System: QuEra’s Aquila.
Topological Quantum Computers
Still in the experimental and theoretical stage, topological quantum computers promise to use anyons, particles that only exist in two dimensions, to create more stable qubits.
Example System: These systems are not yet commercially available, but Microsoft’s StationQ project is a significant research effort in this area.
Each type of quantum computer has unique advantages and challenges, and the choice of architecture depends on the specific applications and problems to be solved.
About the List
Keeping track of the latest developments in quantum computing can be challenging, but a list of quantum computers can make it easier. By providing a comprehensive overview of the current state of the field, a list of quantum computers can help researchers and investors stay informed and make informed decisions about their work.
While the number of quantum computers is still relatively small, the field is expected to grow rapidly in the coming years, and a list of quantum computers can help keep track of this progress.
