David is the former Deputy Chairman of Investec Bank UK. Prior to this he was Group CEO of Guinness Mahon Group. Between 1981-1989, David was a Managing Director of Samuel Montagu, Midland Montagu and Midland Global Corporate Banking (now HSBC). David was also a Managing Director of CSFB and its predecessor companies (1969-1981). David is currently non executive Chairman of Ortus VCT and Quercus Publishing. He is a Council member of The Centre for the Study of Financial Innovation, Chairman of the National Film and TV Foundation and a Trustee of the Nelson Mandela Children's Fund UK and Worldwide Volunteering. He is a member of the investment committeee of King's College London where he is a fellow.
Appointed to the Board on 21 March 2002, and became Chairman on 25th September 2009.