Serco Group plc (LSE: SRP) is a government services company based in Hook, North Hampshire in the United Kingdom. It is listed on the London Stock Exchange and is a constituent of the FTSE 100 Index.
Serco was founded in 1929 as a United Kingdom division of the Radio Corporation of America and initially provided services to the cinema industry. It changed its name to Serco in 1987 and has been a London Stock Exchange listed company since 1988.
On 29 December 2008, Serco completed its acquisition of SI International.