His Majesty's Government Communications Centre (HMGCC) is an organisation which provides electronics and software to support the communication needs of the Government of the United Kingdom.

Based at Hanslope Park, near Milton Keynes in Buckinghamshire, it is closely linked with the Foreign, Commonwealth and Development Office and the British intelligence agencies.

[2] HMGCC was founded in 1938, specialising in overseas bespoke wireless communications.

[3] HMGCC used to have a communications centre at Signal Hill near Gawcott, in Buckinghamshire.

Stephen Ball was Chief Executive until 2000,[4] when Dr John Widdowson took over; Widdowson moved to GCHQ in 2005.