| DUMBELL, Marc Rene George ACTIVE | Secretary | 18 Apr 2019 | | | | 20, Carlton House Terrace, London, SW1Y 5AN, England |
| BAJNAI, Gyorgy Gordon ACTIVE | Director | 28 Apr 2025 | | England | March 1968 | 20, Carlton House Terrace, London, SW1Y 5AN, England |
| CAMPBELL, Alastair John Wilson ACTIVE | Director | | | United Kingdom | February 1947 | 20, Carlton House Terrace, London, SW1Y 5AN, England |
| DUMBELL, Marc Rene George ACTIVE | Director | 28 Apr 2025 | | England | July 1975 | 20, Carlton House Terrace, London, SW1Y 5AN, England |
| SEALEY, Andrew Edward ACTIVE | Director | 06 Apr 1994 | | England | February 1964 | 20, Carlton House Terrace, London, SW1Y 5AN, England |
| BADGER, Ross Wyndham RESIGNED | Secretary | | 01 Mar 2001 | | | 7 Barrett Road, Fetcham, Leatherhead, Surrey, KT22 9HL |
| CANE, James Andrew RESIGNED | Secretary | 01 Mar 2001 | 31 Oct 2002 | | | 26 Bellevue Road, London, SW13 0BJ |
| DEAN, Julian Mark RESIGNED | Secretary | 30 Apr 2008 | 18 Apr 2019 | | | 110, Frant Road, Thornton Heath, Surrey, CR7 7JU, England |
| NOBLE, Charles Henry Scott RESIGNED | Secretary | 01 Nov 2002 | 30 Apr 2008 | | | 7 Amner Road, London, SW11 6AA |
| BAKER, Oliver RESIGNED | Director | 02 Nov 1992 | 15 Apr 1994 | England | July 1959 | The Old Rectory, Edmonthorpe, Melton Mowbray, Leicestershire, LE14 2JZ |
| BENTLEY, Michael John RESIGNED | Director | 08 Jul 1991 | 31 Jul 1994 | | November 1933 | 37 Kensington Park Gardens, London, W11 2QT |
| DACOMBE, William John Armstrong RESIGNED | Director | 30 Mar 1994 | 29 Oct 1999 | | September 1934 | Mullion Cottage Well Lane, London, SW14 7AJ |
| DACOMBE, William John Armstrong RESIGNED | Director | | 31 Oct 1991 | | September 1934 | Mullion Cottage Well Lane, London, SW14 7AJ |
| HUDSON, David Norman RESIGNED | Director | | 30 Jun 1993 | | May 1945 | The Highlands Hatches Lane, Great Missenden, Buckinghamshire, HP16 0JP |
| JOLLES, Bernard Nathan RESIGNED | Director | 18 Apr 1995 | 19 Jan 2001 | United Kingdom | August 1949 | 110 Regents Park Road, London, NW1 8UG |
| KELLY, Bernard RESIGNED | Director | | 31 Jul 1994 | | April 1930 | 109 Studdridge Street, London, SW6 3TD |
| KRETOWCZ, Robert Joseph RESIGNED | Director | 20 Feb 1995 | 19 May 1995 | | March 1953 | 1 St Anns Villas, London, W11 4RU |
| LILLEY, Francis Anthony RESIGNED | Director | 06 Sep 1993 | 10 May 1996 | United Kingdom | June 1953 | The Barn,Park Farm, Felbridge, Surrey, RH19 2RB |
| LOIZAGA, Jose Maria RESIGNED | Director | | 29 Oct 1999 | | January 1936 | Jenner 6, Madrid 28010, FOREIGN, Spain |
| LOIZAGA JIMENEZ, Francisco Javier RESIGNED | Director | 06 Apr 1994 | 29 Oct 1999 | | February 1962 | Antonio Fuentes 6-C, Madrid, Spain, FOREIGN |
| LUTYENS, Richard David RESIGNED | Director | | 12 Feb 1994 | | July 1948 | 53 Clarendon Road, London, W11 4JD |
| MCGILLIVRAY, Gavin Bruce RESIGNED | Director | 08 Jun 1992 | 31 Jul 1993 | | November 1957 | 18 Hearne Road, London, W4 3NJ |
| MUULS, Philippe RESIGNED | Director | | 01 Apr 1994 | | December 1939 | 13 Redcliffe Square, London, SW10 9JX |
| NOBLE, Charles Henry Scott RESIGNED | Director | 06 Apr 1994 | 29 Feb 2000 | | January 1947 | 7 Amner Road, London, SW11 6AA |