| MCKENZIE, Ian ACTIVE | Secretary | 23 Jun 2023 | | | | 280, High Holborn, London, WC1V 7EE |
| ARMSTRONG, James Thomas ACTIVE | Director | 18 Aug 2026 | | England | January 1980 | 280, High Holborn, London, WC1V 7EE |
| MARIN-LAZARO, Juan Peche ACTIVE | Director | 03 Mar 2025 | | Spain | August 1968 | 280, High Holborn, London, WC1V 7EE |
| WICKERSHAM, Peter ACTIVE | Director | 24 Oct 2024 | | United Kingdom | April 1973 | 280, High Holborn, London, WC1V 7EE |
| YANG COMISKEY, Josephine ACTIVE | Director | 24 Oct 2024 | | United Kingdom | November 1973 | 280, High Holborn, London, WC1V 7EE |
| BALLARD, Nicola RESIGNED | Secretary | 22 Jul 2022 | 23 Jun 2023 | | | 280, High Holborn, London, WC1V 7EE |
| BOOTH, Robert Alec RESIGNED | Secretary | | 01 Feb 1994 | | | Virginia House, Withersfield, Suffolk, CB9 7SA |
| CHARLESWORTH, Stephen RESIGNED | Secretary | 12 Aug 2013 | 15 May 2017 | | | 280, High Holborn, London, WC1V 7EE, United Kingdom |
| HENRY, Johanna RESIGNED | Secretary | 15 May 2017 | 22 Jul 2019 | | | 280, High Holborn, London, WC1V 7EE |
| HWANG, Dorothy RESIGNED | Secretary | 09 Mar 2020 | 22 Jul 2022 | | | 280, High Holborn, London, WC1V 7EE |
| KITTERIDGE, Wendy RESIGNED | Secretary | 01 Feb 1994 | 09 Dec 1998 | | | 39 Falklands Road, Haverhill, Suffolk, CB9 0EA |
| LACKEY, David Andrew RESIGNED | Secretary | 31 Oct 2006 | 12 Aug 2013 | | | 2 Roundwood Avenue, Uxbridge, Middlesex, UB11 1AZ |
| MOREN, Anders RESIGNED | Secretary | 22 Jul 2019 | 09 Mar 2020 | | | 280, High Holborn, London, WC1V 7EE |
| PHILLIPSON, Kevin Philip RESIGNED | Secretary | 09 Dec 1998 | 31 Dec 2005 | | | 15 Rue De General Leclerc, Louveciennes, 78430, France |
| ALTON, Gregg Huber RESIGNED | Director | 11 Oct 2004 | 17 Dec 2011 | | March 1966 | 2 Roundwood Avenue, Stockley Park, Uxbridge, Middlesex, UB11 1AZ |
| CARTER, Paul Rutherford RESIGNED | Director | 23 Jan 2007 | 07 Apr 2014 | | July 1960 | 2 Roundwood Avenue, Uxbridge, Middlesex, UB11 1AZ |
| COOKE, Alan RESIGNED | Director | 27 Jun 1995 | 29 Sep 2000 | England | November 1954 | 6a Church Lane, Abington, Cambridge, Cambridgeshire, CB1 6BQ |
| CORK, Anthony John RESIGNED | Director | 24 Jun 1993 | 18 Oct 1993 | | June 1948 | The Lodge Station Road, Haddenham, Ely, Cambs, CB6 3XD |
| DICKINSON, Andrew D. RESIGNED | Director | 31 Oct 2019 | 23 Jun 2023 | United States | February 1970 | 280, High Holborn, London, WC1V 7EE |
| DORLING, Janet Elizabeth RESIGNED | Director | 23 Jun 2023 | 24 Oct 2024 | United States | March 1974 | 280, High Holborn, London, WC1V 7EE |
| ERTL, Rudolf RESIGNED | Director | 07 Apr 2014 | 23 Jun 2023 | Germany | June 1960 | 280, High Holborn, London, WC1V 7EE, United Kingdom |
| HERRON, George Barrington RESIGNED | Director | | 24 Jun 1993 | | July 1947 | 3 Hinxton House, South Acre Drive, Cambridge, Cambs, CB2 2UA |
| JORDEN, John Andrew RESIGNED | Director | 23 Jun 2023 | 27 Nov 2024 | United States | December 1983 | 280, High Holborn, London, WC1V 7EE |
| LACKEY, David Andrew RESIGNED | Director | 11 Oct 2004 | 23 Jan 2007 | | June 1961 | 2 Roundwood Avenue, Uxbridge, Middlesex, UB11 1AZ |
| MILLIGAN, John RESIGNED | Director | 23 Jan 2007 | 17 Dec 2011 | | March 1961 | 2 Roundwood Avenue, Stockley Park, Uxbridge, Middlesex, UB11 1AZ |
| PERRY, Mark Lloyd RESIGNED | Director | 15 Feb 2000 | 23 Jul 2004 | | November 1955 | 176 West Blithedale Avenue, Mill Valley, California, 94941, Usa |
| PHILLIPSON, Kevin Philip RESIGNED | Director | 16 Nov 1994 | 31 Dec 2005 | | June 1945 | 15 Rue De General Leclerc, Louveciennes, 78430, France |
| PLETCHER, Brett RESIGNED | Director | 16 Dec 2011 | 27 Apr 2023 | United States | March 1968 | 280, High Holborn, London, WC1V 7EE, United Kingdom |
| STÜCKER, Hans York-Julian RESIGNED | Director | 23 Jun 2023 | 18 Aug 2026 | Germany | July 1973 | 280, High Holborn, London, WC1V 7EE |
| TAGUE, Stephen Thomas RESIGNED | Director | 06 Aug 2001 | 09 Nov 2004 | | September 1960 | 29 Armingford Crescent, Melbourn, Hertfordshire, SG8 6NG |
| VOGEL, Richard RESIGNED | Director | 18 Oct 1993 | 11 Nov 1994 | | February 1954 | 5270 Brentwood Place, Yorba Linda, Orange County, California, 92687, Usa |
| WASHINGTON, Robin RESIGNED | Director | 16 Dec 2011 | 31 Oct 2019 | United States | September 1962 | 280, High Holborn, London, WC1V 7EE, United Kingdom |
| WHITAKER, Andrew RESIGNED | Director | 23 Jan 2007 | 21 Jun 2011 | | December 1954 | Flowers Building Granta Park, Abington, Cambridge, Cambridgeshire, CB1 6GT |