resilient-pnt
(2)
TERN
TERN is an Austin-based startup building IDPS (Independently Derived Positioning System), an AI-powered, software-only alternative to GPS. Instead of relying on satellite signals that can be jammed, spoofed, or blocked by tall buildings and tunnels, TERN's AI reads the sensors already inside vehicles and phones - accelerometers, gyroscopes, speedometers - and matches that motion against existing map data to figure out exactly where you are. Founded by AI engineers and former U.S. special operations personnel, TERN serves automakers, delivery fleets, emergency services, and defense customers who cannot afford to lose their location when the signal drops.
Xona Space Systems
Xona Space Systems is a Burlingame, California company building Pulsar, a commercial low-Earth-orbit constellation that delivers positioning, navigation, and timing (PNT) with centimeter-level accuracy, signals far stronger than legacy GPS, and built-in authentication to resist jamming and spoofing. Founded in 2019 by Stanford and SpaceX alumni, Xona aims to deploy roughly 258 satellites that work with existing devices through software updates, offering a resilient alternative and augmentation to government-run satellite navigation systems.