Rubicon International Services Ltd is a British private military and private security company based in London, which was acquired by Aegis Defence Services on 28 October 2005.
Rubicon International Services was founded in 1996 by John Davidson, a former special forces soldier.
Before its 2005 acquisition by Aegis Defence Systems, it operated in more than 50 countries.
[2] The other shareholder was Paddy Nicoll, who sold his security systems consultancy, Diplomatic Protection Ltd, to Rubicon in 2000.
Paddy Nicoll retired from the Army in 1996, having served with the Black Watch.