HawkEye 360

HawkEye 360 operates a constellation of more than 30 satellites that detect and geolocate radio-frequency emissions — from ships, radios, and devices — anywhere on Earth, including 'dark' vessels that switch off their transponders. It sells this signals-intelligence to defense, intelligence, and border-security agencies; in 2026 it became the first commercial RF provider under an operational contract with the National Reconnaissance Office. The company went public on the NYSE (ticker HAWK) in May 2026 at roughly a $2 billion valuation.