| HANCOCK, Margaret Ruth, Dr ACTIVE | Secretary | 13 Dec 2014 | | | | 24, Philbeach Gardens, London, SW5 9DY, England |
| DRISCOLL, Mary Jane ACTIVE | Director | 01 Jul 2005 | | England | November 1977 | 24a Philbeach Gardens, London, SW5 9DY |
| KNIGHT, Richard Austen, Dr ACTIVE | Director | 01 Dec 2006 | | England | August 1943 | 24 Philbeach Gardens, London, SW5 9DY |
| RAVIPRAKASH, Gajendri ACTIVE | Director | 01 Aug 2014 | | England | December 1982 | 24 Philbeach Gardens, London, SW5 9DY |
| TAILLY, Thomas Bertrand Pierre ACTIVE | Director | 25 Oct 2025 | | United Kingdom | May 1990 | 24 Philbeach Gardens, London, SW5 9DY |
| MOONEY, Stephen Dermot RESIGNED | Secretary | 17 Mar 1992 | 31 Dec 1995 | | | 24 Philbeach Gardens, London, SW5 9DY |
| SOUTHON, Paul Frederick RESIGNED | Secretary | 01 Jan 1996 | 27 Sep 2000 | | | 24 Philbeach Gardens, London, SW5 9DY |
| STONE, Timothy John RESIGNED | Secretary | 27 Sep 2000 | 17 Feb 2005 | | | 17 Langthorne Street, London, SW6 6JT |
| WHITTINGHAM, Ivan John RESIGNED | Secretary | | 17 Mar 1992 | | | 170 Dorset Road, London, SW19 3EF |
| WOODMAN, Christopher Cameron RESIGNED | Secretary | 01 Feb 2006 | 11 Jul 2014 | | | 24 Philbeach Gardens, London, SW5 9DY |
| LMS REGISTRARS LTD RESIGNED | Secretary | 17 Feb 2005 | 31 Jan 2006 | | | 12 Northfields Prospect, Putney Bridge Road, London, SW18 1DJ |
| BALFOUR, Jonathan Campbell RESIGNED | Director | 11 May 1992 | 22 Apr 1999 | | January 1963 | 24 Philbeach Gardens, London, SW5 9DY |
| HEDDERLY, Mark RESIGNED | Director | 22 Apr 1999 | 02 Feb 2006 | United Kingdom | February 1957 | 96 Philbeach Gardens, London, SW5 9ET |
| KOLUSZ, Peter John RESIGNED | Director | | 23 Sep 1993 | | August 1942 | 24 Philbeach Gardens, London, SW5 9DY |
| MACLEAN, Tara Alexander RESIGNED | Director | 22 Apr 1999 | 01 Jul 2005 | | March 1975 | 24a Philbeach Gardens, London, SW5 9DY |
| MOONEY, Stephen Dermot RESIGNED | Director | | 22 Apr 1999 | | July 1962 | 24 Philbeach Gardens, London, SW5 9DY |
| NORTH, Giles Barrington RESIGNED | Director | | 22 Apr 1999 | | July 1935 | 24 Philbeach Gardens, London, SW5 9DY |
| PETT, Stephen Jonathan RESIGNED | Director | 23 Sep 1993 | 12 Feb 2003 | | August 1960 | 24 Philbeach Gardens, Earls Court, London, SW5 9DY |
| RICKMAN, Heather Jane RESIGNED | Director | 01 May 2011 | 17 Jun 2025 | United Kingdom | January 1971 | 24 Philbeach Gardens, London, SW5 9DY |
| RITCHIE, Suzy Caroline RESIGNED | Director | 22 Apr 1999 | 28 Apr 2009 | | July 1972 | 24 Philbeach Gardens, London, SW5 9DY |
| SMYTH-OSBOURN, Julian RESIGNED | Director | | 11 May 1992 | | March 1937 | 24 Philbeach Gardens, London, SW5 9DY |
| SOUTHON, Elizabeth Laura Mcarthur RESIGNED | Director | 24 Feb 2003 | 12 Jan 2004 | | January 1948 | 24 Philbeach Gardens, London, SW5 9DY |
| SOUTHON, Paul Frederick RESIGNED | Director | | 24 Feb 2003 | | June 1946 | 24 Philbeach Gardens, London, SW5 9DY |
| STREET, Emma Louise RESIGNED | Director | 01 Feb 2006 | 31 Oct 2006 | | March 1968 | 24 Philbeach Gardens, London, SW5 9DY |
| STROMGREN, Rikard Daniel RESIGNED | Director | 11 Jun 2009 | 31 Mar 2011 | England | December 1975 | 24, Philbeach Gardens, London, SW5 9DY |
| WHEATLEY, Elizabeth, Doctor RESIGNED | Director | 12 Feb 2003 | 11 Jul 2014 | England | October 1956 | 24 Philbeach Gardens, London, SW5 9DY |