| PHILIPS, Jacqueline Louise, Dr ACTIVE | Secretary | 24 Apr 2023 | | | | 123 Old Brompton Road, London, SW7 3RP |
| HELIN, Kristian ACTIVE | Director | 14 Apr 2023 | | England | April 1962 | 123 Old Brompton Road, London, SW7 3RP |
| NORRIS, Paul Francis Walter ACTIVE | Director | 01 Jan 2010 | | England | February 1968 | 123, Old Brompton Road, London, SW7 3RP |
| GRIFFITHS, Charmaine Helen, Dr RESIGNED | Secretary | 15 Feb 2016 | 31 Jan 2020 | | | 123, Old Brompton Road, London, SW7 3RP, England |
| KIPLING, Jonathan Mark RESIGNED | Secretary | 11 Feb 2005 | 31 Dec 2009 | | | 123 Old Brompton Road, London, SW7 3RP |
| NORTH, Magda Amy RESIGNED | Secretary | 23 Apr 2020 | 14 Mar 2023 | | | 123 Old Brompton Road, London, SW7 3RP |
| SCIVIER, Catherine RESIGNED | Secretary | 01 Jan 2010 | 31 Jan 2016 | | | 123, Old Brompton Road, London, SW7 3RP |
| SHARPE, Eva Rachel, Dr RESIGNED | Secretary | 01 Feb 2020 | 23 Apr 2020 | | | 123 Old Brompton Road, London, SW7 3RP |
| SLATTERY, Sharon Noelle, Mrs. RESIGNED | Secretary | 16 May 2002 | 11 Feb 2005 | | | 176 Blagdon Road, New Malden, Surrey, KT3 4AL |
| BASING, Anthony Mark RESIGNED | Director | 07 Jul 2004 | 11 Feb 2005 | | September 1951 | 36 Selwyn Crescent, Hatfield, Hertfordshire, AL10 9NN |
| CUMMING, Andrew John RESIGNED | Director | 22 Dec 2003 | 11 Feb 2005 | United Kingdom | June 1954 | 305 Mountjoy House, Barbican, London, EC2Y 8BP |
| FOAD, Allan Robert RESIGNED | Director | 06 Jun 2002 | 11 Feb 2005 | | April 1949 | 19 Dukes Orchard, Bexley, Kent, DA5 2DU |
| GRANT, Mark Andrew RESIGNED | Director | 22 Dec 2003 | 11 Feb 2005 | United Kingdom | July 1962 | 177, Silverdale Avenue, Walton-On-Thames, Surrey, KT12 1EL |
| GREEN, Michael Jonathan RESIGNED | Director | 06 Jun 2002 | 03 Dec 2003 | England | January 1947 | 109 Hampstead Way, London, NW11 7LR |
| GRIFFITHS, Charmaine Helen, Dr RESIGNED | Director | 15 Feb 2016 | 31 Jan 2020 | England | December 1974 | 123, Old Brompton Road, London, SW7 3RP |
| JOSEPH, Michael William RESIGNED | Director | 09 Jun 2004 | 11 Feb 2005 | England | March 1956 | The Hermitage, St Leonards, Tring, Hertfordshire, HP23 6NW |
| KING, Roger Steuart RESIGNED | Director | 06 Jun 2002 | 31 Oct 2003 | | June 1948 | 9 Kingfisher House, No 6 Melbury Road, London, W14 8LN |
| KIPLING, Jonathan Mark RESIGNED | Director | 21 Dec 2007 | 31 Dec 2009 | England | December 1951 | 123 Old Brompton Road, London, SW7 3RP |
| MILES, Peter Bernard RESIGNED | Director | 16 May 2002 | 11 Feb 2005 | | May 1945 | Brentwood House, Winchester Road, West Meon, Hampshire, GU32 1JS |
| PRITCHARD, David Peter RESIGNED | Director | 16 May 2002 | 09 May 2003 | England | July 1944 | 17 Thorney Crescent, London, SW11 3TT |
| RIDING, Frederick Michael Peter RESIGNED | Director | 06 Jun 2002 | 29 Dec 2003 | | September 1943 | York House, Clifton Down Road, Clifton, Bristol, BS8 4AG |
| SCIVIER, Catherine RESIGNED | Director | 01 Jan 2010 | 31 Jan 2016 | England | March 1962 | 123, Old Brompton Road, London, SW7 3RP |
| SEGGINS, Roger Russell RESIGNED | Director | 06 Jun 2002 | 04 Jul 2003 | | October 1945 | Marronwood 4 Kelvedon Avenue, Walton On Thames, Surrey, KT12 5ED |
| STEWART, Gordon RESIGNED | Director | 14 Dec 2020 | 14 Apr 2023 | England | March 1966 | 123 Old Brompton Road, London, SW7 3RP |
| SURRIDGE, Steven Robert RESIGNED | Director | 11 Feb 2005 | 31 Aug 2021 | England | May 1961 | 6, Treetops, Billingshurst, West Sussex, RH14 9GQ, England |
| TATE, George Truett RESIGNED | Director | 29 Dec 2003 | 05 May 2004 | England | May 1950 | 25, Gresham Street, London, EC2V 7HN |
| VOWLES, Anthony Brian RESIGNED | Director | 29 Dec 2003 | 11 Feb 2005 | | September 1951 | Hopgardens, Hopgarden Lane, Sevenoaks, Kent, TN13 1PX |
| VOWLES, Anthony Brian RESIGNED | Director | 06 Jun 2002 | 31 Oct 2003 | | September 1951 | Hopgardens, Hopgarden Lane, Sevenoaks, Kent, TN13 1PX |
| WHITEHEAD, Andrew Peter RESIGNED | Director | 11 Feb 2005 | 21 Dec 2007 | England | November 1963 | 34 Illingworth Way, Enfield, Middlesex, EN1 2PA |