Quadsat

Quadsat is a Danish defense-technology company that develops radio-frequency (RF) detection and geolocation payloads and the accompanying spectrum-operations software, enabling electromagnetic spectrum control for defense operations. Founded in 2017 in Odense at UAS Denmark, the company began with high-precision drone-based satellite antenna calibration for the SATCOM industry, mastering RF propagation and signal metrology before applying that expertise to electronic warfare. Its flagship SpectraLoc payload is a compact (~3 kg), SWaP-C optimized system covering the 2–18 GHz range, detecting signals at up to 150 km and geolocating emitters at up to 100 km. Designed for integration into Group 2–5 UAV platforms (both multirotor and fixed-wing) as well as vehicle and ground-based deployment, Quadsat's systems serve defense forces and drone OEMs seeking stand-off RF sensing. Milestones include a first NATO order (2022), battle-proven deployment through a partnership in Ukraine and its first defense EW order (2025), and ISO 9001 certification (2026).