Applied Physics Systems (APS) is a company that designs and manufactures magnetic and gravity sensors and guidance and orientation systems for navigation, telemetry, wireless communications, and magnetic field measurement.
TMC Design is an engineering and manufacturing company that specializes in electromagnetics, digital signal processing, and radio frequency communications.
Safran Trusted 4D USA (formerly known as Orolia USA or Spectracom) is a company that manufactures precision, navigation, and timing (PNT) instruments and network-centric equipment.