Leaving EU Galileo is not fully accessible anymore being a EU project.
In March 2018, the European Commission announced that the United Kingdom may be excluded from parts of Galileo (especially relating to the secured service PRS) following its exit from the European Union (EU). As a result, Airbus plans to relocate work on the Ground Control Segment (GCS) from its Portsmouth premises to an EU state.
British officials have been reported to be seeking legal advice on whether they can reclaim the €1.4 billion invested by the United Kingdom, of the €10 billion spent to date. In a speech at the EU Institute for Security Studies conference, the EU Chief Negotiator in charge of the Brexit negotiations, Michel Barnier, stressed the EU position that the UK had decided to leave the EU and thus all EU programmes, including Galileo.
In August 2018, it was reported the UK will look to create a competing satellite navigation system to Galileo post-Brexit.
In December 2018, British Prime Minister Theresa May announced that the UK would no longer seek to reclaim the investment, and Science Minister Sam Gyimah resigned over the matter.
UK just invested £500m into bankrupt OneWeb Global Limited.