Alice & Bob
Alice & Bob is a Paris- and Boston-based quantum computing company building fault-tolerant machines from cat qubits, with the Helium platform for error correction.
Error correction
Companies in this category: 19
Entropica Labs Pte Ltd
Singapore-based Entropica Labs develops software infrastructure for programmable fault-tolerant quantum computing, spanning QEC design, compilation, and deployment.
Google Quantum AI
Google Quantum AI is Google's quantum-computing division developing quantum hardware and software, including the Willow processor and quantum error-correction resources.
Haiqu Inc.
Haiqu Inc. develops quantum computing software for R&D teams, including an agentic operating system, SDK, and runtime for running applications on quantum hardware.
IQM Quantum Computers Plc
IQM Quantum Computers Plc builds full-stack superconducting quantum computers and related cloud access for HPC centers, researchers, and enterprises.
Nord Quantique
Nord Quantique develops error-corrected quantum computers using superconducting bosonic codes to target a 1:1 logical-to-physical qubit ratio.
Photonic Inc.
Photonic Inc. is a private Canadian quantum computing company developing a distributed platform based on silicon T centres and spin-photon architecture.
Q-CTRL
Q-CTRL develops AI-powered infrastructure software for quantum computing and quantum sensing, including products for error reduction, hardware control, education, and GPS-free navigation.
Qedma
Qedma develops mid-stack quantum software for error mitigation, suppression, and signal extraction on noisy quantum hardware.
QPerfect
QPerfect is a Strasbourg-based quantum software company that builds the MIMIQ quantum circuit emulator and the QLU fault-tolerant compilation layer for neutral-atom processors.
Qruise GmbH
Qruise GmbH develops machine-learning software and digital-twin tools for quantum computing, magnetic resonance, and quantum sensing.
QuamCore Ltd.
QuamCore Ltd. develops a superconducting quantum computing architecture focused on large-scale, fault-tolerant systems using integrated digital superconducting logic.
Quantinuum
Quantinuum develops trapped-ion quantum computers, cloud and developer software, and application software for quantum computing.
Quantum Circuits
Quantum Circuits is a quantum computing company developing superconducting dual-rail qubits with built-in error detection and now part of D-Wave Quantum Inc.
Quint Computing
Quint Computing is an Erlangen-based start-up building superconducting quantum computers whose chip architecture suppresses most errors in hardware to cut fault-tolerance overhead.
Riverlane Ltd
Riverlane Ltd develops quantum error correction hardware, software and services for quantum computing.
Superquantum
Superquantum builds a software stack for fault-tolerant quantum computers covering resource estimation, optimization, orchestration and execution.
Unitary Foundation
Unitary Foundation is a 501(c)(3) nonprofit that supports the quantum technology ecosystem through microgrants, research, and open-source community activities.
Welinq
Welinq develops quantum networking solutions, including quantum links, memory-based storage, and software for modular quantum computing and quantum communication networks.