QphoX: A Dutch Quantum Startup Driving Europe’s Secure Communications Autonomy

Europe’s emerging quantum communications specialist QphoX is a Dutch deep-tech startup founded in 2021 as a spin-off from TU Delft. The company is developing a novel “quantum modem” based on microwave-to-optical transduction to network superconducting quantum processors over fiber optic links [1] [2] . Its core innovation allows room-temperature optical channels to carry quantum signals from cryogenic qubits, potentially enabling scalable quantum computing clusters and a secure quantum internet. QphoX has already demonstrated single-qubit optical readout in collaboration with partners and secured significant EU and national funding. Its technology addresses a key European priority – enabling indigenous quantum networks and reducing dependence on external (e.g. Chinese) cryptographic infrastructure [3] [4] . This report examines QphoX’s organizational profile and technology portfolio in detail, evaluating its contribution to EU strategic autonomy, NATO interoperability, collective deterrence, transatlantic cooperation, and supply-chain resilience. QphoX B.V. (Delft, NL) is a quantum-technology deep-tech startup specializing in hardware for quantum communications. It falls under the European Emerging and Disruptive Technology (EDT) category of Quantum Technologies , with potential relevance to Cybersecurity (quantum cryptography).