Company profile
Xen Quantum
Cambridge company developing silicon photonics-based quantum key distribution modules for integration into telecommunications networks.
Company overview
Xen Quantum develops hardware for quantum-secure communication. Based in Cambridge, the company is creating quantum communication modules that are based on silicon photonics and designed for integration into existing telecommunications network infrastructure. Its technology utilises a form of Quantum Key Distribution (QKD) known as discrete-variable QKD, which encodes information on individual photons to generate provably secure encryption keys. This approach aims to provide security guarantees based on the laws of physics, countering threats from advancing algorithms and quantum computers. Xen Quantum's patented architecture is intended for room-temperature operation and CMOS-compatible, wafer-scale fabrication to enable scalable and cost-effective manufacturing. Founded by quantum physicists and engineers, the company also has a location in Eindhoven, Netherlands.
Semiconductor activity
Primary capability: Photonic Integrated Circuits. Supply-chain role: Hardware Developer, Component Supplier, Chip Designer.
Technologies and capabilities
- Quantum
- Photonics
- Silicon
- Quantum Key Distribution (QKD)
- Silicon Photonics
- Photonic Integrated Circuits (PICs)
- Quantum Communications
- Discrete-Variable QKD
Quantum Communication Modules; Quantum Encryption; Photonic Devices
Markets served
- Telecommunications
- Network Infrastructure
- Cybersecurity
UK presence
Cambridge. Part of the Cambridge / East of England cluster.
Sources and verification
Last verified: 2026-09-29