| BRAATHEN, Per Georg ACTIVE | Director | 30 Nov 2011 | | United Kingdom | November 1960 | 3rd Floor, 114a Cromwell Road, London, SW7 4AG, United Kingdom |
| GAUNT, Ian Jeremy ACTIVE | Director | | | United Kingdom | May 1951 | 3rd Floor, 114a Cromwell Road, London, SW7 4AG, United Kingdom |
| VOURECAS-PETALAS, Andreas ACTIVE | Director | 17 May 2017 | | Monaco | October 1944 | 3rd Floor, 114a Cromwell Road, London, SW7 4AG, United Kingdom |
| WORSLEY, William Ralph ACTIVE | Director | 12 Dec 2005 | | United Kingdom | September 1956 | 3rd Floor, 114a Cromwell Road, London, SW7 4AG, United Kingdom |
| CASEIRAS, Paul RESIGNED | Secretary | 07 Mar 2007 | 24 Jun 2009 | | | Flat 6, 61 Cadogan Square, London, SW1X 0HZ |
| GAUNT, Elisabeth RESIGNED | Secretary | | 20 Aug 1991 | | | 61 Cadogan Square, London, SW1X 0HZ |
| GAUNT, Ian Jeremy RESIGNED | Secretary | 20 Aug 1991 | 07 Mar 2007 | | | 61 Cadogan Square, London, SW1X 0HZ |
| ANNINOS, Helen RESIGNED | Director | | 27 May 2008 | | July 1960 | 61 Cadogan Square, London, SW1X 0HZ |
| BEAL, John Hugh Bruce, Dr RESIGNED | Director | | 16 Oct 1991 | | April 1906 | 61 Cadogan Square, London, SW1X 0HZ |
| BEAL, Mary Bettina RESIGNED | Director | 16 Oct 1991 | 04 Aug 2003 | | October 1909 | 61 Cadogan Square, London, SW1X 0HZ |
| CASEIRAS, Paul RESIGNED | Director | 10 Jan 2007 | 27 Feb 2024 | United Kingdom | October 1965 | 3rd Floor, 114a Cromwell Road, London, SW7 4AG, United Kingdom |
| ETTEDGUI, Jamie Brett RESIGNED | Director | 07 Mar 2006 | 24 Feb 2008 | United Kingdom | April 1975 | 5 Perrymead Street, London, SW6 3SW |
| GAUNT, Elisabeth RESIGNED | Director | | 20 Aug 1991 | | April 1957 | 61 Cadogan Square, London, SW1X 0HZ |
| GOEDHUIS, Michael Arnold Johannes RESIGNED | Director | 22 Mar 1999 | 05 Mar 2008 | England | May 1941 | 61 Cadogan Square, London, SW1X 0HZ |
| JOLLY, Robert Miles RESIGNED | Director | 04 Aug 2003 | 07 Mar 2006 | England | September 1937 | Essex House, Burton By Lincoln, Lincoln, Lincolnshire, LN1 2RD |
| WILSON, David John RESIGNED | Director | | 14 Apr 1994 | | April 1937 | Flat 3 61 Cadogan Square, London, SW1X 0HZ |
| WILSON, Linda Ann RESIGNED | Director | | 14 Apr 1994 | | July 1947 | 61 Cadogan Square, London, SW1X 0HZ |
| WYMAN, Marcel Eric RESIGNED | Director | 23 Oct 1995 | 20 Sep 2001 | | February 1920 | 103a Cadogan Gardens, London, SW3 2RF |