Private company

Security Advisory Services

Security Advisory Services was a British private military company founded by Leslie Aspin, an arms dealer, John Banks, a former paratrooper of the British Army, and Frank Perren, a former Royal Marine, in order to recruit mercenaries for military operations abroad. In 1976, the company massively hired paid soldiers to fight in the Angolan Civil War, which was the biggest mercenary recruitment operation in Britain since the Nigerian Civil War at the end of the 1960s.2 It is headquartered in Sandhurst.1 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

1975Founded1
  • HeadquartersSandhurst1

Security Advisory Services was a British private military company founded by Leslie Aspin, an arms dealer, John Banks, a former paratrooper of the British Army, and Frank Perren, a former Royal Marine, in order to recruit mercenaries for military operations abroad. In 1976, the company massively hired paid soldiers to fight in the Angolan Civil War, which was the biggest mercenary recruitment operation in Britain since the Nigerian Civil War at the end of the 1960s.2

Timeline

  1. 1975Founded Founded1

Sources

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