Quantum componentsFreshwater Quarry, Brixham Laboratory, Brixham Tq5 8Ba, Brixham
BAY Photonics
Specializes in photonic assembly and packaging for quantum, sensing, and telecom applications, from prototype to production.
Find quantum companies with an address in England. Ask which modalities and services they supply.
16 quantum companies
Quantum componentsFreshwater Quarry, Brixham Laboratory, Brixham Tq5 8Ba, Brixham
Specializes in photonic assembly and packaging for quantum, sensing, and telecom applications, from prototype to production.
Quantum sensing and metrologyR103, Fermi Avenue, Harwell Campus, Oxford
Develops advanced direct electron detectors and readout systems for electron microscopy and X-ray research. Products include MerlinEM, Merlin T4, and Xspress 3…
Quantum componentsDidcot
Designs and manufactures custom photonics control electronics; developing quantum key distribution receivers, single photon detectors and a master controller…
Quantum hardwareSouthampton
Builds miniaturised cold-atom quantum hardware for sensing, timing and spectroscopy, drawing on quantum physics, vacuum engineering, microfabrication and…
Post-quantum cryptography vendorsLondon
Provides quantum-safe encryption products and PQC migration tooling, including software-defined encryption for telecom, government and critical infrastructure,…
Quantum networking and QKDGlasgow
Small satellite company leading the ESA/UKSA-supported OPS-SAT VOLT mission; offers a 6U CubeSat quantum key distribution payload using the BB84 protocol and a…
Quantum componentsCirencester
Division of Intelliconnect making cryogenic RF cables, cable assemblies, connectors and components for quantum computing, space, defense and research…
Quantum componentsLondon
Supplies high-field superconducting magnets and cryogen-free low-temperature measurement systems down to 10 mK, with in-house manufacturing; products include…
Quantum networking and QKDBristol
Develops chip-based quantum security products including quantum key distribution and quantum random number generators for defense, finance, critical…
Quantum sensing and metrologyLondon
Develops mass-manufacturable, chip-scale quantum sensors on a neutral-atom platform, including VCSEL atomic clocks, RF magnetometers and atomic spin gyroscopes…
Quantum networking and QKDCambridge
Builds quantum networking technology to scale quantum computers by weaving processors into interconnected, modular architectures; its Entanglement Fabric…
Quantum hardwareOxford
Builds photonic quantum computers, including the PT Series and PT-3, designed to integrate with existing data centres and GPUs for hybrid quantum-classical AI…
Quantum componentsEdinburgh
Designs and manufactures single-photon sensitive cameras and sensors with time-resolved single-photon counting; serves quantum applications and quantum optics…
Quantum software and algorithmsEngland
Riverlane develops quantum error correction (QEC) technology, including the Deltaflow real-time QEC system, Deltakit open-source software, and proprietary QEC…
Quantum hardwareHayward's Heath
Trapped-ion quantum computing company building utility-scale quantum computers on a modular blueprint; raised over $100m Series A.
Quantum componentsCambridge
Provides rapid photonic integrated circuit design technology, PDKs, design services, packaging and measurement services for telecommunications, quantum,…
Published by Quantum Companies. How we check each quantum company.
Occasional notes on vendor selection, modality comparison and quantum procurement.