- The Rt Hon Lord Hill of Oareford CBEChairman
- The Rt Hon. Lord Robertson of Port Ellen, KT, GCMG, Hon FRSE, PCSpecial Adviser to BP plc. Formerly Secretary General, NATO, and Secretary of State for Defence.
- The Rt Hon Sir John Major, KG, CHFormer Prime Minister of the United Kingdom and Northern Ireland.
- Lord Windlesham CVO PC:Chairman: July 1998 - July 1999
- Lord Gillmore of Thamesfield GCMG:Chairman: July 1997 - July 1998
- Sir Antony Acland GCMG GCVVOChairman: July 1990 - July 1997
- Lord Hunt of Tanworth GCBChairman: July 1983 - July 1990
- Sir David Wills CBE TD DLFounder and Benefactor, Chairman: July 1972 - July 1983
- Lord Caccia GCMG GCVOChairman: July 1965 - July 1972
- The Earl of Perth PCChairman: July 1964 - July 1965