Guardian RF

Washington, D.C.-based, Y Combinator-backed startup building passive RF sensors (Scout, Scout-X, Full Spectrum) for drone detection and pilot geolocation; founded by three Georgetown physics students, raised ~$2.3M from General Catalyst, Space Capital, UA1, and Y Combinator, with D3 among its backers, and holds an AFWERX SBIR contract at Vandenberg Space Force Base.