| FALCONER, Adele Christine ACTIVE | Director | 02 Mar 2016 | | England | October 1975 | 8, King Street, London, SW1Y 6QT, England |
| NORMAN, Timothy John ACTIVE | Director | 10 May 2018 | | England | April 1975 | 8 King Street, St James's, London, SW1Y 6QT |
| AYDON, Richard Hinchliffe RESIGNED | Secretary | 11 Aug 2003 | 29 Feb 2008 | | | 13 Blatchington Road, Tunbridge Wells, Kent, TN2 5EG |
| DE LANE LEA, Caroline Jane RESIGNED | Secretary | 15 Oct 1996 | 08 Aug 2003 | | | Flat 5 24 Sutherland Street, London, SW1V 4LA |
| DEEMING, Nicholas RESIGNED | Secretary | 29 Feb 2008 | 10 Dec 2010 | | | 8, King Street, St. James's, London, SW1Y 6QT |
| FALCONER, Adele Christine RESIGNED | Secretary | 07 May 2015 | 02 Mar 2016 | | | 8 King Street, St James's, London, SW1Y 6QT |
| GHINN, Sarah RESIGNED | Secretary | 10 Dec 2010 | 07 May 2015 | | | 69, Thrale Road, London, SW16 1NU, England |
| NASH, George Philip RESIGNED | Secretary | | 15 Oct 1996 | | | 77 Silver Lane, West Wickham, Kent, BR4 0RX |
| PATEL, Sheetal RESIGNED | Secretary | 02 Mar 2016 | 05 Mar 2021 | | | 8, King Street, London, SW1Y 6QT, England |
| ZISSLER, Carla RESIGNED | Secretary | 05 Mar 2021 | 22 Apr 2025 | | | 8 King Street, St. James's, London, SW1Y 6QT, United Kingdom |
| ANNESLEY, Arthur Noel Grove RESIGNED | Director | | 01 Nov 2005 | United Kingdom | December 1941 | 103 Dulwich Village, London, SE21 7BJ |
| BARTHAUD, Paul Alexander RESIGNED | Director | | 29 Oct 1992 | | March 1956 | 4 Fryston Avenue, Croydon, Surrey, CR0 7HL |
| BLYTHE, Peter Jens RESIGNED | Director | 26 Apr 1998 | 23 May 2001 | England | July 1954 | 269 Hills Road, Cambridge, Cambridgeshire, CB2 2RP |
| BOLL-FARENHOLTZ, Dirk, Dr RESIGNED | Director | 01 Jul 2021 | 29 Apr 2022 | England | September 1970 | 8 King Street, St James's, London, SW1Y 6QT |
| CARTER, Sophie Jane RESIGNED | Director | 22 Mar 2011 | 29 Jan 2015 | England | September 1969 | 8 King Street, St James's, London, SW1Y 6QT |
| CLAYTON-JONES, Christopher Edmund RESIGNED | Director | 22 Mar 2011 | 03 Oct 2016 | England | November 1970 | 8 King Street, St James's, London, SW1Y 6QT |
| CUMMING, Robert Alexander RESIGNED | Director | | 30 Jun 2000 | England | May 1945 | The Old Mill House, Maids Moreton, Buckingham, Bucks, MK18 7AR |
| FLOYD, Elizabeth Joanna RESIGNED | Director | | 29 Oct 1992 | United Kingdom | February 1951 | 7 Carlyle Square, London, SW3 6EX |
| GUERNAOUI, Fiona Brenda Joanne RESIGNED | Director | 03 Sep 2015 | 28 Feb 2017 | England | November 1969 | 8 King Street, St James's, London, SW1Y 6QT |
| HAY, Jane Scott RESIGNED | Director | 27 Jul 2011 | 01 Jul 2021 | England | August 1960 | 8 King Street, St James's, London, SW1Y 6QT |
| HERBERT, Trevor, Professor RESIGNED | Director | 14 Feb 2018 | 19 Jan 2022 | England | October 1945 | 8 King Street, St James's, London, SW1Y 6QT |
| LAMBERT, Deborah RESIGNED | Director | | 29 Oct 1992 | | September 1949 | 30 Belsize Grove, London, NW3 4TR |
| LLEWELLYN, David John RESIGNED | Director | | 01 Jun 1998 | | July 1952 | 132 Victoria Rise, London, SW4 0NW |
| LORIMER, William James RESIGNED | Director | | 29 Oct 1992 | | April 1957 | 33b Langthorne Street, London, SW6 6JT |
| MICHAEL, Michael Andrew RESIGNED | Director | 22 Mar 2011 | 05 Dec 2016 | United Kingdom | June 1955 | 153, Great Titchfield Street, London, W1W 5BD, United Kingdom |
| PICKERING, Irmgard Hedwig RESIGNED | Director | 26 Apr 1998 | 10 Aug 2011 | England | August 1946 | 44 Duke Street, London, SW1Y 6DD |
| RAFFO, Pietro RESIGNED | Director | | 29 Oct 1992 | | August 1930 | Flat 1 Queensgate Gardens, London, SW7 5EH |
| TYLER, David Alan RESIGNED | Director | 29 Oct 1992 | 31 Dec 1996 | | January 1953 | 6 Ernle Road, Wimbledon, London, SW20 0HJ |
| WARD, Andrew Jonathan RESIGNED | Director | 22 Dec 2016 | 09 May 2018 | England | December 1964 | 8 King Street, St James's, London, SW1Y 6QT |
| WILSON, Martin Andrew Noble RESIGNED | Director | 29 Jan 2015 | 29 Feb 2016 | England | October 1964 | 8 King Street, St James's, London, SW1Y 6QT |