QphoX

QphoX develops quantum modems and transducers that connect quantum computers across quantum networks. The company's technology utilizes principles including coupling microwave and optical photons through an intermediary resonator, piezo-electric and optomechanical effects, and the conversion of quantum information between microwave and optical telecom frequencies. Founded in 2020 and headquartered in Delft, Netherlands, QphoX has raised approximately $11.1M in Series A funding from investors including EIC Fund, Quantonation, Speedinvest, HTGF, TU Delft, Quantum Delta, QDNL Participations, Delft Enterprises, Redstone, and QAI Capital. The company's quantum modems address a fundamental challenge in quantum computing by enabling coherent transfer of quantum information between superconducting qubit processors operating at microwave frequencies and optical telecom networks, which is essential for building scalable quantum networks and distributed quantum computing systems.