The main mission of SIS is to collect Britain's foreign intelligence. It provides the British government with vital … See more

SIS is governed under the law of the United Kingdom and so the British government has the power to pass the mandate to SIS oversee independent investigation, intelligence gathering and oversight to operations… See more

The service derived from the Secret Service Bureau, which was founded on 1 October 1909. The Bureau was a joint initiative of the Admiralty and the War Office to control secret intelligence operations in the UK an… See more

SIS agents are often chosen based on merit and skill by authorities at elite universities and military academies. The chosen recruit then must make a his or hers application within the United Kingdom, must be a … See more

The year 2009 was the centenary of the Secret Intelligence Service. An official history of the first forty years was commissioned to mark the occasion and was published in 2010. To further mark the centenary, … See more

• Cambridge Five, a Cold War Soviet spy ring
• David Cornwell (known as John le Carré), author, former SIS officer
• Andrew Fulton, chairman of the Scottish Conservative Party… See more

Since 1995, SIS headquarters has been at 85 Vauxhall Cross, along the Albert Embankment in Vauxhall on the south bank of the River Thames by Vauxhall Bridge, London. Previous headquarters have been Century Ho… See more