GMV NSL is the leader in server-side Galileo PRS receiver solutions, developing the technology that unlocks PRS for mass-market use.

The Galileo Public Regulated Service (PRS) uses encrypted ranging signals making it inherently secure against spoofing attacks (see for example This service is for exclusive access to government-authorised users. Conventional PRS receivers would incorporate a keyed security module to be able to receive the signals. 

Together with UK partners QinetiQ and Airbus D&S, GMV NSL developed an alternative solution. Codenamed EXPLORERS, this cloud-receiver system delivers secure positioning, navigation and timing.  The distributed EXPLORERS architecture places all classified Galileo cryptographic processing in a secure service centre thereby reducing cost and operational requirements on the user terminals. 

EXPLORERS cloud systems open up the use of authenticated GNSS to a much wider range of public services where it is critical to ensure that the position and/or timing information can be trusted. Cloud services make PRS suitable to many more uses by enabling affordable and secure terminals that remove limitations associated with cryptographic material and key distribution. See external press releases regarding our PRS solutions and some of the world firsts achieved by GMV NSL and partners in the development of this technology.

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