| ALEXANDER, Susan, Dr ACTIVE | Director | 14 May 2024 | | England | October 1971 | Haslers, Old Station Road, Loughton, Essex, IG10 4PL, United Kingdom |
| MAYHEW, Darius Sergei Mc Donald Junior ACTIVE | Director | 23 Jan 2024 | | England | January 1980 | Haslers, Old Station Road, Loughton, Essex, IG10 4PL, United Kingdom |
| REDDY, Jason, Doctor ACTIVE | Director | 10 Sep 2025 | | England | April 1966 | Haslers, Old Station Road, Loughton, Essex, IG10 4PL, United Kingdom |
| SAWYER, Christopher Nicholas, Dr ACTIVE | Director | 29 Oct 2024 | | England | September 1958 | Haslers, Old Station Road, Loughton, Essex, IG10 4PL, United Kingdom |
| SHARMA, Illa Devi ACTIVE | Director | 29 Oct 2024 | | England | August 1990 | Haslers, Old Station Road, Loughton, Essex, IG10 4PL, United Kingdom |
| EDMONDS, Jack, Dr RESIGNED | Secretary | 28 Feb 2006 | 12 Mar 2009 | | | Little Crossways, 14 Amersham Road, Chesham Bois, Buckinghamshire, HP6 5PE |
| ETTLINGER, Paul RESIGNED | Secretary | 12 Mar 2009 | 12 Oct 2016 | | | 6th Floor, 25 Farringdon Street, London, EC4A 4AB, United Kingdom |
| ETTLINGER, Paul, Dr RESIGNED | Secretary | 17 Feb 2004 | 28 Feb 2006 | | | Apt 94, 9 Albert Embankment, London, SE1 7HD |
| PAUL, Peter Michael, Dr RESIGNED | Secretary | 10 Mar 1992 | 31 Dec 1997 | | | 285a Kings Road, Chelsea, London, SW3 5EW |
| UNGAR, Stuart Charles RESIGNED | Secretary | 01 Jan 1998 | 27 Feb 2003 | | | 49 Tottenham Street, London, W1P 9TF |
| AKLE, Charles RESIGNED | Director | 27 Mar 2002 | 18 Apr 2005 | | October 1952 | 90a Harley Street, London, W1G 7HT |
| AKLE, Charles Assad RESIGNED | Director | 10 Mar 1992 | 01 Jan 1999 | England | October 1952 | Bridge House, Pembridge, Leominster, Herefordshire, HR6 9HL |
| BATTY, Philip David, Dr RESIGNED | Director | 12 May 2020 | 20 May 2025 | England | April 1962 | 11, Chandos Street, London, W1G 9EB, England |
| BAYOUMI, Hassan, Doctor RESIGNED | Director | 01 Jan 1998 | 27 Mar 2002 | | January 1921 | Flat 41 Princes House, Kensington Park Road, London, W11 3BN |
| BENTLEY, Annabel Jane Elizabeth RESIGNED | Director | 14 Mar 2025 | 28 Nov 2025 | England | May 1971 | Haslers, Old Station Road, Loughton, Essex, IG10 4PL, United Kingdom |
| BISHOP, Colin RESIGNED | Director | 20 Feb 1995 | 01 May 1996 | | February 1947 | 79 Harley Street, London, WIN 1AE |
| BLACKIE, Stuart, Dr RESIGNED | Director | 27 Mar 2002 | 17 Feb 2004 | United Kingdom | March 1951 | 28 Claremont Road, Teddington, Middlesex, TW11 8DG |
| BLACKIE, Stuart, Dr RESIGNED | Director | 21 Mar 1996 | 15 Apr 1997 | United Kingdom | March 1951 | 28 Claremont Road, Teddington, Middlesex, TW11 8DG |
| COOPER, Richard RESIGNED | Director | 01 Jan 1999 | 27 Feb 2003 | | November 1940 | 17 Harley Street, London, W1N 1DA |
| COOPER, Richard, Doctor RESIGNED | Director | 07 Mar 1994 | 31 Dec 1997 | | November 1940 | 34 Uxbridge Road, Stanmore, Middlesex, HA7 3LQ |
| COSTELLO, John Francis, Dr RESIGNED | Director | 18 Apr 2005 | 28 Feb 2006 | England | September 1944 | 12, Melville Avenue, Wimbledon, London, SW20 0NS |
| CRAIG, Michael Cohen, Dr RESIGNED | Director | 20 Mar 2012 | 22 Jan 2019 | London | August 1968 | 6th Floor, 25 Farringdon Street, London, EC4A 4AB, United Kingdom |
| EDMONDS, Jack, Dr RESIGNED | Director | 12 Mar 2009 | 20 Mar 2012 | United Kingdom | October 1953 | 66, Chiltern Street, London, W1U 4JT, United Kingdom |
| EDMONDS, Jack, Dr RESIGNED | Director | 27 Mar 2002 | 27 Feb 2003 | United Kingdom | October 1953 | 14 Amersham Road, Chesham Bois, Buckinghamshire, HP6 5PE |
| ETTLINGER, Paul, Dr RESIGNED | Director | 17 Feb 2004 | 28 Feb 2006 | United Kingdom | February 1959 | Apt 94, 9 Albert Embankment, London, SE1 7HD |
| ETTLINGER, Paul, Dr RESIGNED | Director | 01 Jan 1998 | 27 Mar 2002 | | February 1959 | 14b Kensington Court Gardens, London, W8 5QE |
| FRATER, Nelda Elizabeth, Dr RESIGNED | Director | 20 Oct 2022 | 13 Mar 2024 | England | September 1953 | Lettsom House, 11 Chandos Street, London, W1G 9EB, England |
| FRATER, Nelda Elizabeth, Dr RESIGNED | Director | 17 Feb 2004 | 28 Feb 2006 | England | September 1953 | 5, Kent Terrace, London, NW1 4RP |
| FRY, Anthony Harold, Dr RESIGNED | Director | 07 Mar 1994 | 27 Mar 2002 | England | November 1942 | 129 Hemingford Road, London, N1 1BZ |
| FRY, Lionel, Professor RESIGNED | Director | 18 Apr 2005 | 28 Feb 2006 | | March 1933 | 16 Caroline Place, London, W2 4AN |
| GRINDLE, John RESIGNED | Director | 28 Feb 2006 | 12 Mar 2009 | | April 1946 | 11, Devonshire Mews West, London, W1G 6QE |
| GRINDLE, John RESIGNED | Director | 01 Jan 1999 | 17 Feb 2004 | | April 1946 | 11, Devonshire Mews West, London, W1G 6QE |
| HARRINGTON, Kevin, Dr RESIGNED | Director | 17 Feb 2004 | 12 Mar 2009 | United Kingdom | March 1958 | 17 Burlington Gardens, London, W4 4LT |
| HAUGHTON, Neil Duncan, Dr RESIGNED | Director | 08 Jan 2020 | 22 Sep 2022 | England | September 1967 | Lettsom House, 11 Chandos Street, London, W1G 9EB, England |
| HORSEWOOD LEE, Susan, Dr RESIGNED | Director | 27 Mar 2002 | 17 Apr 2005 | | November 1948 | 34 Oakley Street, London, SW3 5NT |
| HORSEWOOD LEE, Susan, Dr RESIGNED | Director | 07 Mar 1994 | 01 Jan 1999 | | November 1948 | 34 Oakley Street, London, SW3 5NT |
| HUGHES, Anthony Francis Rippon, Doctor RESIGNED | Director | 01 Jan 1998 | 27 Feb 2003 | | July 1953 | 15 Ashington Road, London, SW6 3QJ |
| MACKAY, Ian Stuart, Mr. RESIGNED | Director | 20 Mar 2012 | 08 Jan 2020 | United Kingdom | June 1943 | 6th Floor, 25 Farringdon Street, London, EC4A 4AB, United Kingdom |
| MACKAY, Ian Stuart, Mr. RESIGNED | Director | 18 Apr 2005 | 28 Feb 2006 | United Kingdom | June 1943 | 8 Elm Park Mansions, Park Walk, London, SW10 0AN |
| MACKAY, James, Dr RESIGNED | Director | 08 Jan 2020 | 22 Sep 2022 | England | October 1958 | Lettsom House, 11 Chandos Street, London, W1G 9EB, England |
| MACKNESS, Kenneth James RESIGNED | Director | 23 Jan 2024 | 12 Dec 2025 | England | April 1978 | Haslers, Old Station Road, Loughton, Essex, IG10 4PL, United Kingdom |
| MITCHELL, Geoffrey, Dr RESIGNED | Director | 10 Mar 1992 | 27 Feb 2003 | | April 1932 | 19 Ravenscourt Road, London, W6 0UH |
| MURPHY, Karl William, Dr RESIGNED | Director | 17 Feb 2004 | 28 Feb 2006 | England | December 1957 | Erskine House, 89a Regents Park Road, London, NW1 8UY |
| NAYLOR, Christopher RESIGNED | Director | 01 Jan 1998 | 22 Feb 1999 | | August 1934 | 35 Chiswick Quay, London, W4 3UR |
| O'CONNOR, Brian Joseph, Dr RESIGNED | Director | 22 Jan 2019 | 08 Jan 2020 | England | September 1956 | 11 Lettsom House, Chandos Street, London, W1G 9EB, United Kingdom |
| OAKLEY, John Richard, Dr RESIGNED | Director | 27 Mar 2002 | 18 Apr 2005 | | December 1949 | 52 Bishops Way, Four Oaks, Sutton Coldfield, West Midlands, B74 4XS |
| PATTISON, Charles RESIGNED | Director | 17 Feb 2004 | 28 Feb 2006 | England | November 1956 | 42 Wimpole Street, London, W1G 8YF |
| PAUL, Michael, Dr RESIGNED | Director | 27 Mar 2002 | 17 Feb 2004 | | September 1947 | 285a Kings Road, London, SW3 5EW |
| PAUL, Peter Michael, Dr RESIGNED | Director | 10 Mar 1992 | 31 Dec 1995 | | September 1947 | 285a Kings Road, Chelsea, London, SW3 5EW |
| PERRING, Michael Arthur, Dr RESIGNED | Director | 17 Feb 2004 | 28 Feb 2006 | England | April 1937 | 19 Milford House, 7 Queen Anne Street, London, W1G 9HN |
| ROSE, Frank Clifford, Dr RESIGNED | Director | 27 Mar 2002 | 18 Apr 2005 | | August 1926 | 110 Harley Street, London, W1N 1AF |
| ROSE, Frank Clifford, Doctor RESIGNED | Director | 07 Mar 1994 | 01 Jan 1999 | | August 1926 | 7 Church Street, Little Bedwyn, Marlborough, Wiltshire, SN8 3JQ |
| SALMON, Paul Raymond, Dr RESIGNED | Director | 10 Mar 1992 | 01 Mar 2002 | United Kingdom | July 1936 | 2d Melbury Road, Kensington, London, W14 8LP |
| SANDERS, Stuart, Dr RESIGNED | Director | 21 Mar 1996 | 28 Feb 2006 | | November 1934 | 51 Springfield Road, London, NW8 0QJ |
| SANDERS, Stuart, Dr RESIGNED | Director | 10 Mar 1992 | 07 Mar 1994 | | November 1934 | 51 Springfield Road, London, NW8 0QJ |
| SAWYER, Christopher Nick RESIGNED | Director | 12 Mar 2009 | 20 Mar 2012 | United Kingdom | September 1958 | 66, Chiltern Street, London, W1U 4JT, United Kingdom |
| SCURR, Martin, Dr RESIGNED | Director | 10 Mar 1992 | 28 Feb 2006 | | September 1950 | 121 Ladbroke Grove, London, W11 1PN |
| SHANKS, Jean Mary, Dr RESIGNED | Director | 10 Mar 1992 | 31 Dec 1996 | | November 1925 | 8 South Eaton Place, London, SW1W 9JA |
| SHOWGHI, Samina, Dr RESIGNED | Director | 17 Feb 2004 | 28 Feb 2006 | | October 1968 | 18 Redcliffe Street, London, SW10 9DT |
| STARR, Philip RESIGNED | Director | 20 Feb 1995 | 27 Mar 2002 | | July 1938 | 13 Cavendish Avenue, London, NW8 9JD |
| UNGAR, Stuart Charles RESIGNED | Director | 01 Jan 1998 | 27 Feb 2003 | England | November 1943 | 49 Tottenham Street, London, W1P 9TF |
| WILSON, Patricia Caroline RESIGNED | Director | 27 Mar 2002 | 27 Feb 2003 | United Kingdom | March 1947 | Gladwyns, Sheering Road, Bishops Stortford, Hertfordshire, CM22 7LL |