A list for having a snapshot of the race for building Quantum computers with more Qubits.
| Company | Country | Qubit Technology / Capability | Latest Publicly Announced Physical Qubit Count |
| IBM | USA | Superconducting Transmon Qubits (Gate-based) | 1121 Qubits (Condor Processor – Dec 2023) |
| Google Quantum AI | USA | Superconducting Transmon Qubits (Gate-based) | 105 Qubits (Willow Chip – Late 2024) |
| Quantinuum | UK/USA | Trapped-Ion Qubits (Honeywell H-Series) (Gate-based) | 32 Qubits (System Model H2-2) |
| IonQ | USA | Trapped-Ion Qubits (Gate-based) | 36 Qubits (IonQ Forte) |
| D-Wave Systems | Canada | Superconducting Qubits (Quantum Annealing) | >5000 Qubits (Advantage2 Prototype) |
| PASQAL | France | Neutral Atoms in Optical Tweezers (Gate-based) | ~100 Qubits (PASQAL Fresnel1 / Emu-TN) |
| Atom Computing | USA | Neutral Atoms in Optical Lattices (Gate-based) | 1180 Qubits (45 vacancies in 35×35 lattice) |
| Rigetti Computing | USA | Superconducting Transmon Qubits (Gate-based) | 84 Qubits (Ankaa-3) |
| Xanadu | Canada | Photonic Qubits (Optical/Light-based) (Gate-based) | >200 Squeezed-light (effective) Qubits |
| Intel | USA | Silicon Spin Qubits (Gate-based) | 12 Qubits (Tunnel Falls Processor) |
| Alice & Bob | France | Superconducting Cat Qubits (Error-corrected approach) | 14 Physical Qubits (Ocelot Architecture for error mitigation) |
| Origin Quantum | China | Superconducting Transmon Qubits (Gate-based) | 72 Qubits (Wukong Processor – Jan 2024) |
| USTC/CAS | China | Superconducting Qubits (Research/Government Lab) | 105 Qubits (Zuchongzhi 3.0 Processor) |
| Baidu | China | Superconducting Qubits (QaaS Platform) | 10 Qubits (Qian Shi Processor) |
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