Gyrosync Corp develops position, navigation, and timing (PNT) sensors for GPS compromised environments. Their systems utilize artificial intelligence (AI) and machine learning (ML) to create solutions such as: a low-cost inertial measurement unit (IMU) for some variants; zero-velocity IMU updates; GPS receivers; pseudolite base stations with radio ranging capability; precision pressure and/or radar altimeter; cell tower ranging; and LoRa beacons and receivers, and mesh network radio-ranging.