G2-Zero: Quantum Resilience for European Secure Communications

G2-Zero is an emerging deep-tech company pioneering quantum-based cybersecurity solutions, with a focus on safeguarding data for public institutions. Originating as a scientific spin-off, the company develops plug-and-play single-photon sources – miniature devices that generate individual photons on demand – to enable next-generation encryption systems.

This highly specialized technology addresses a critical challenge: protecting government and defense communications against interception, including future threats from quantum computers.

This analysis answers: How do G2-Zero's plug-and-play single-photon sources enable next-generation encryption for public institutions? What is the technology readiness of G2-Zero's quantum-based cybersecurity against interception and future quantum-computer threats? Which government and defence customers and partners adopt G2-Zero as a scientific spin-off? What capability gaps and dependencies shape G2-Zero's role in quantum-resilient secure communications for Europe?