QuadSAT

QuadSAT is a Danish defense technology company that develops modular radio frequency (RF) sensing and electronic warfare payloads for UAV platforms. Founded in 2017 with origins in satellite antenna testing and RF calibration, QuadSAT has evolved from drone-based antenna measurement solutions into a full-spectrum electronic warfare provider. The company's SpectraLoc payload is a compact, lightweight (~3 kg) RF sensing system covering the 2-18 GHz frequency range, capable of detecting signals at distances up to 150 km and geolocating emitters at ranges up to 100 km. It integrates into Group 2-5 UAV platforms, vehicles, or ground-based deployments. QuadSAT also provides spectrum operations software for spectrum mapping, signal analysis, and mission planning. The company serves defense forces, government agencies, drone OEMs, and commercial SATCOM operators. ISO 9001 certified and headquartered in Odense, Denmark, QuadSAT has raised approximately $19.6 million in Series A funding from investors including Vaekstfonden, Seraphim, IQ Capital, Join Capital, North Ventures, and Generation Space.