| MCDONALD, Susan Jane ACTIVE | Secretary | 05 Jun 2025 | | | | 150 Holborn, Holborn, London, EC1N 2NS, England |
| RIHANI, Bashar Suleiman Nasir ACTIVE | Director | 08 Sep 2025 | | Lebanon | December 1959 | 150 Holborn, Holborn, London, EC1N 2NS, England |
| SALAAM, Hussein Teymour ACTIVE | Director | 01 Jun 2025 | | United Arab Emirates | August 1974 | 150 Holborn, Holborn, London, EC1N 2NS, England |
| HOLMAN, Terence Raymond RESIGNED | Secretary | 24 Feb 1999 | 08 Jul 1999 | | | The Wattles, Pilt Down, East Sussex, TN22 3XL |
| JONES, Matthew David Alexander RESIGNED | Secretary | 09 Aug 2012 | 28 Sep 2012 | | | 3 Water Lane, Richmond, Surrey, TW9 1TJ |
| LLOYD, Daniella RESIGNED | Secretary | 27 Sep 2022 | 05 Jun 2025 | | | 150 Holborn, Holborn, London, EC1N 2NS, England |
| MCDONALD, Susan Jane RESIGNED | Secretary | 01 Feb 2013 | 27 Sep 2022 | | | 3 Water Lane, Richmond, Surrey, TW9 1TJ |
| MOORE, Stephen Craig RESIGNED | Secretary | 28 Sep 2012 | 01 Feb 2013 | | | 3 Water Lane, Richmond, Surrey, TW9 1TJ |
| SEXTON, Susan RESIGNED | Secretary | | 24 Feb 1999 | | | Friar House 7 Sherwood Drive, Maidenhead, Berkshire, SL6 4NY |
| THORNTON, Ian Rodney RESIGNED | Secretary | 08 Jul 1999 | 09 Aug 2012 | | | 3 Water Lane, Richmond, Surrey, TW9 1TJ |
| DOUGLAS, Michael RESIGNED | Director | 01 Mar 1999 | 30 Jun 2001 | | March 1940 | Woodside Norwich Road, Tacolneston, Norwich, NR16 1EF |
| EMPRINGHAM, Gillian Anne RESIGNED | Director | 12 Dec 2016 | 12 Dec 2016 | United Kingdom | July 1974 | 3 Water Lane, Water Lane, Richmond, TW9 1TJ, England |
| HANFORD, John RESIGNED | Director | | 03 Mar 2013 | England | December 1932 | 3 Water Lane, Richmond, Surrey, TW9 1TJ |
| HOBBY, Ronald RESIGNED | Director | | 31 Dec 1998 | | February 1936 | 64 Longdown Lane North, Epsom, Surrey, KT17 3JG |
| HUGHES, Brian Peter RESIGNED | Director | | 12 Jul 2001 | | August 1947 | Ronda Howgate Drive, Goring, Reading, Berkshire, RG8 9DQ |
| KELLAWAY, Richard James RESIGNED | Director | | 31 Dec 1997 | England | May 1945 | Somerley Startins Lane, Cookham, Maidenhead, Berkshire, SL6 9TS |
| LAWSON, Robert RESIGNED | Director | 05 Dec 2016 | 26 Oct 2019 | United Kingdom | July 1954 | 3 Water Lane, Water Lane, Richmond, TW9 1TJ, England |
| MOCKTON, Isaac Zachary RESIGNED | Director | 19 Jul 2001 | 29 Feb 2004 | United Kingdom | November 1963 | 81 Brondesbury Villas, Queens Park, London, NW6 6AG |
| MOOK, Carl Richard RESIGNED | Director | 13 Dec 2016 | 31 Jan 2021 | United States | September 1966 | 3 Water Lane, Water Lane, Richmond, TW9 1TJ, England |
| MORGAN, Peter RESIGNED | Director | 01 Jan 2006 | 05 Dec 2016 | United Kingdom | June 1956 | 3 Water Lane, Richmond, Surrey, TW9 1TJ |
| O'SULLIVAN, Peter Bernard RESIGNED | Director | 26 Oct 2019 | 01 Jun 2025 | England | April 1969 | 150 Holborn, Holborn, London, EC1N 2NS, England |
| SEXTON, Susan RESIGNED | Director | 01 Jun 1998 | 24 Feb 1999 | United Kingdom | January 1956 | Friar House 7 Sherwood Drive, Maidenhead, Berkshire, SL6 4NY |
| STANLEY, David Nigel RESIGNED | Director | 09 May 2003 | 15 May 2013 | England | May 1949 | 3 Water Lane, Richmond, Surrey, TW9 1TJ |
| THOMAS, Stephen RESIGNED | Director | 01 Jun 1998 | 19 Jul 2001 | United Kingdom | February 1949 | 16 Croham Close, South Croydon, Surrey, CR2 0DA |
| WILLIAMS, Christopher Francis RESIGNED | Director | 19 Jul 2001 | 12 Dec 2016 | United Kingdom | August 1956 | 3 Water Lane, Richmond, Surrey, TW9 1TJ |
| WREFORD, Spencer James RESIGNED | Director | 01 Feb 2021 | 05 Jun 2025 | England | June 1971 | 150 Holborn, Holborn, London, EC1N 2NS, England |