drone-detection
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Distributed Spectrum
Distributed Spectrum builds AI-powered radio-frequency sensors and software that automatically detect, classify, and locate signals - drones, jammers, tactical radios, GPS spoofers - in real time. Founded by three Harvard engineers, the company packs commercial hardware and edge AI into sub-one-pound sensors that give soldiers and analysts persistent spectrum awareness without specialist RF expertise. It raised a $25M Series A in March 2025 and has fielded systems with US military branches and partners in Ukraine.
Airspace Defense
Airspace Defense (formerly Airspace Systems) is a Silicon Valley company that secures the low-altitude airspace where drones increasingly operate. Its patented Airspace Spatial platform fuses Remote ID, RF and electronic sensing, radar and AI analytics to detect, identify and track unauthorized drones and their operators at city scale. Founded in 2015 by a team from Apple, Google and Cisco, the company serves public safety agencies, national defense and major enterprises, and its autonomous Interceptor drone is held in the Smithsonian National Air and Space Museum.
Guardian RF
Guardian RF builds low-cost, passive radiofrequency sensors that make low-altitude airspace observable in real time. Founded in 2024 by three Georgetown physics majors, the company deploys palm-sized 'Scout' sensors that detect the control signals drones and their operators emit, triangulating both across a mesh network. Its systems have been battle-tested on the front lines in Ukraine and are now fielded at Vandenberg Space Force Base and across U.S. airports and event venues, turning drone detections into structured, shareable intelligence.