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Our history

We are very proud of our long and distinguished history; from the earliest days as the Government Code and Cipher School in World War One, through the breakthroughs at Bletchley Park during World War Two, and to the complex technical challenges of  today. 

Featured

  • Signals Intelligence

    The story of Signals Intelligence 1914-2014

    Feature 12 Apr 2016 Topics: Our people, Intelligence, Our history
    When UK Signals Intelligence began in 1914, the world was a very different place. Read about the dilemma of the Zimmerman telegram, Signals Intelligence trailblazer William Green Swanborough, the intelligence officer and the movie star, and the capture of a spy in Rome in 1945.
  • Bletchley Park Commemorative Badge

    Bletchley Park commemorative badge

    Feature 28 Apr 2016 Topics: Our people, Our places, Our history
    On behalf of Her Majesty's Government, GCHQ is delighted to recognise the vital service of those who worked at Bletchley Park and its outstations during World War II, by presenting surviving veterans with a commemorative badge.
  • Our archives

    The history of GCHQ and its predecessors goes back nearly 100 years. Take a look at some of our archive material.

Latest Our history updates