centimeter-accuracy
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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.
Point One Navigation
Point One Navigation builds the precision-location stack behind autonomous vehicles, drones, robots and survey-grade tools. Its Polaris RTK network, Atlas inertial sensors and FusionEngine software fuse GNSS, inertial data and computer vision to deliver centimeter-level positioning across the US, Europe, UK, Australia, New Zealand and South Korea.