| STEINER, Sybille, Dr ACTIVE | Secretary | 09 Jul 2019 | | | | 31, Vernon Road, London, SW14 8NH, England |
| BARNES, Peter Denis Ponsonby ACTIVE | Director | 11 Jul 2018 | | England | April 1962 | 34, Belgrave Square, London, SW1X 8QB |
| DE TARANTO, Isabella ACTIVE | Director | 06 Jul 2026 | | United Kingdom | August 1995 | 34, Belgrave Square, London, SW1X 8QB |
| FALCONER, Annika ACTIVE | Director | 15 Jul 2024 | | England | September 1979 | 34, Belgrave Square, London, SW1X 8QB |
| GILCHRIST, Andrew Thomas ACTIVE | Director | 13 Jan 2020 | | England | June 1958 | North End Farm, Fernhurst Road, Milland, Liphook, GU30 7LT, England |
| JOHNSTON, Duncan ACTIVE | Director | 25 Oct 2021 | | England | October 1963 | 34, Belgrave Square, London, SW1X 8QB |
| MCEWEN, Ross ACTIVE | Director | 08 Jul 2026 | | Scotland | September 1988 | 34, Belgrave Square, London, SW1X 8QB |
| PHILLIPS, Robin Peter Harry ACTIVE | Director | 06 Jul 2026 | | United Kingdom | March 1961 | 34, Belgrave Square, London, SW1X 8QB |
| STEINER, Sybille, Dr ACTIVE | Director | 11 Jul 2018 | | England | January 1961 | 34, Belgrave Square, London, SW1X 8QB |
| TALWAR WINDSOR, Tara, Dr ACTIVE | Director | 14 Jul 2025 | | England | August 1984 | 34, Belgrave Square, London, Select A State Or Province:, SW1X 8QB, United Kingdom |
| THIEDE, Miriam ACTIVE | Director | 11 Jul 2018 | | United Kingdom | March 1990 | 34, Belgrave Square, London, SW1X 8QB |
| DILLENSEGER, Thomas Peter RESIGNED | Secretary | 05 Jul 2007 | 10 Apr 2013 | | | 34 Belgrave Square, London, SW1X 8QB |
| FAULDER, John Sewell RESIGNED | Secretary | 14 Jul 2004 | 05 Oct 2004 | | | 27(1) Marloes Road, London, W8 6LG |
| HAMMOND, Muriel Elsie RESIGNED | Secretary | | 21 Apr 1994 | | | 28 Compton Road, London, SW19 7QD |
| HOBLEY, John Anthony RESIGNED | Secretary | 10 Dec 1997 | 22 Apr 1998 | | | 28 Saint Johns Avenue, London, SW15 6AN |
| MEEKINGS, Karl RESIGNED | Secretary | 27 Mar 2017 | 09 Jul 2019 | | | 24, Lanercost Road, Tulse Hill, London, SW2 3DN, England |
| SINGER, Peter James RESIGNED | Secretary | 22 Apr 1998 | 14 Jul 2004 | | | Quarterwood, Nightingale Road, East Horsley, Surrey, KT24 5DZ |
| SOUTHERN, David Boardman, Dr RESIGNED | Secretary | 21 Apr 1994 | 10 Dec 1997 | | | 63 Hove Park Road, Hove, East Sussex, BN3 6LL |
| TIMMERMANN, Jan Hendrik Boniface RESIGNED | Secretary | 11 Apr 2013 | 27 Mar 2017 | | | 5, Pentland Gardens, Pentland Street, London, SW18 2AN, England |
| TIMMERMANN, Jan Hendrik RESIGNED | Secretary | 18 Jan 2007 | 05 Jul 2007 | | | 20 Raynes Park, Wimbledon, London, SW20 9JB |
| WOODTHORPE BROWNE, Robert RESIGNED | Secretary | 05 Oct 2004 | 18 Jan 2007 | | | 136 Coleherne Court, London, SW5 0DY |
| ANAND, Sandhya RESIGNED | Director | 22 Oct 2007 | 31 Dec 2009 | England | July 1966 | 3, Picketts Terrace, 242 Underhill Road, London, SE22 9DX |
| ATENSTAEDT, Bernd, Dr RESIGNED | Director | 06 Apr 1992 | 26 Jul 2006 | | May 1947 | 5 Bowling Court, Mildred Avenue, Watford, Hertfordshire, WD18 7EH |
| BARKER, Gregory Leonard George RESIGNED | Director | 25 Apr 1995 | 24 Apr 1997 | | March 1966 | 25 Ravenslea Road, London, SW12 8SL |
| BARTLE, Martin RESIGNED | Director | 10 Dec 1996 | 22 Apr 1998 | | May 1969 | 120 Fleet Road, London, NW3 2QX |
| BAUMANN, Heide Anneliese RESIGNED | Director | 09 Jul 2019 | 15 Mar 2021 | Germany | October 1972 | 10, Snarsgate Street, London, W10 6QP, England |
| BECKER, Sebastian, Dr RESIGNED | Director | 18 Sep 2013 | 11 Jul 2018 | United Kingdom | April 1976 | 28, Arundel Gardens, London, W11 2LB, England |
| BISCHOF, Robert Alfons Teja RESIGNED | Director | 19 Oct 2006 | 05 Jul 2007 | England | January 1941 | 16 Livingstone Lodge, London, W9 3TN |
| BOCKSTEGERS, Ute RESIGNED | Director | 11 Jul 2012 | 11 Jul 2018 | England | October 1963 | Bayer House, Strawberry Hill, Newbury, Berkshire, RG14 1JA, England |
| BROCK, Peter RESIGNED | Director | 21 Apr 1994 | 11 Apr 1996 | | November 1966 | Flat D 1 St Johns Park, London, SE3 7TD |
| BROOK-PARTRIDGE, Bernard RESIGNED | Director | | 23 Dec 1991 | England | November 1927 | 28 Elizabeth Road, Henley On Thames, Oxfordshire, RG9 1RG |
| BROOKING, Patrick Guy, Major General RESIGNED | Director | 24 Apr 1997 | 29 May 2004 | | April 1937 | Downlands House Stonehenge Road, Amesbury, Salisbury, Wiltshire, SP4 7BA |
| BROOMFIELD, Nigel, Sir RESIGNED | Director | 22 Oct 1998 | 16 Jan 2007 | | March 1937 | Huntington House, Rue Du Clos Fallu, Trinity, JE3 5BG |
| CARSONS, John Edward RESIGNED | Director | 06 Apr 1992 | 24 Apr 1997 | | September 1924 | 19b Warwick Road, West Drayton, Middlesex, UB7 9BZ |
| CARTMELL, Neelam RESIGNED | Director | 12 Jul 2021 | 10 Jul 2023 | England | December 1983 | 176, Replingham Road, London, SW18 5LJ, England |
| CHILDS, David Haslam, Professor RESIGNED | Director | 01 Apr 1993 | 24 Apr 1997 | | September 1933 | 1 Grange Park, West Bridgeford, Nottingham, NG2 6HW |
| CHILDS, David RESIGNED | Director | | 06 Apr 1992 | | September 1933 | University Of Nottingham, University Park, Nottingham, NG7 2RD |
| COLLIER, Elizabeth RESIGNED | Director | | 01 Apr 1993 | | January 1930 | 23 The Abbey, Romsey, Hampshire, SO51 8EN |
| COLTMAN, Guy RESIGNED | Director | 13 Jan 2000 | 31 Dec 2001 | | July 1968 | 95 Manchuria Road, London, SW11 6AF |
| COURTH, Lambert RESIGNED | Director | 19 Jul 2005 | 19 Apr 2007 | | March 1946 | Bayer House, Strawberry Hill, Newbury, Berkshire, RG14 1JA |
| DAVIDSON, John Joseph Stanley RESIGNED | Director | 06 Apr 1992 | 21 Apr 1994 | | July 1934 | Flat 4 Julian Court, London, NW1 9HU |
| DAWKINS, Martin Scott RESIGNED | Director | 19 Apr 2007 | 11 Jul 2012 | England | March 1960 | Bayer House, Strawberry Hill, Newbury, Berkshire, RG14 1JA |
| DIETER, Wolfgang RESIGNED | Director | 11 Apr 1996 | 22 Oct 1997 | | July 1965 | 201 Kingsway, Hove, East Sussex, BN3 4FD |
| DILLENSEGER, Thomas RESIGNED | Director | 11 Jul 2018 | 09 Jul 2019 | England | November 1968 | 34, Belgrave Square, London, SW1X 8QB |
| DILLENSEGER, Thomas Peter RESIGNED | Director | 05 Jul 2007 | 10 Apr 2013 | United Kingdom | November 1968 | Flat 4, 21-23 Draycott Place, London, SW3 2SQ |
| DIX, Anthony Arthur William RESIGNED | Director | 12 Aug 1997 | 11 May 1999 | | November 1930 | 9 Margin Drive, London, SW19 5HA |
| DOMBROWSKI, Carola Anneliese RESIGNED | Director | 03 Jun 1997 | 19 Jun 2001 | | May 1952 | Burleigh Farm East Street, Turners Hill, Crawley, West Sussex, RH10 4PY |
| DOSCH, Hans Reinhold RESIGNED | Director | 27 Jul 1999 | 07 Jul 2000 | | September 1939 | Flat 4, 17 Thornhill Crescent, London, N1 1BL |
| DREYDEL, Anne RESIGNED | Director | | 24 Jun 2003 | | May 1918 | 11 Moreton Road, Oxford, Oxfordshire, OX2 7AX |
| DYKES, Hugh John Maxwell, Lord RESIGNED | Director | 17 Apr 2001 | 01 Jan 2008 | | May 1939 | 134 Tyneham Road, London, SW11 5XR |
| FARRELLY, Paul RESIGNED | Director | 13 Jul 2011 | 12 Jul 2021 | England | March 1962 | 34, Belgrave Square, London, SW1X 8QB |
| FAULDER, John Sewell RESIGNED | Director | 06 Apr 1992 | 05 Jul 2007 | | January 1930 | 27(1) Marloes Road, London, W8 6LG |
| GLEES, Peter Anthony, Dr RESIGNED | Director | 06 Apr 1992 | 28 Jul 1998 | | August 1948 | 55 Hamilton Road, Oxford, Oxfordshire, OX2 7PY |
| GREENWOOD, John Richard RESIGNED | Director | 16 Jul 2009 | 01 Jan 2018 | United Kingdom | July 1950 | 9, Cleeve Lodge Close, Downend, Bristol, BS16 6AQ |
| GUETTLER-WATERSON, Gisela RESIGNED | Director | 01 Apr 1993 | 21 Apr 1994 | | July 1949 | 2 Marco Road, London, W6 0PN |
| HAMBLIN, Frederick Thomas, Doctor RESIGNED | Director | | 22 Apr 1998 | | October 1914 | Hilbrigen Roedean Way, Brighton, East Sussex, BN2 5RJ |
| HAMMOND, Muriel Elsie RESIGNED | Director | 21 Apr 1994 | 11 May 1999 | | August 1924 | 28 Compton Road, London, SW19 7QD |
| HIRT, Maurice Michel RESIGNED | Director | 06 Jul 2020 | 15 Jul 2024 | England | February 1999 | 54, Gray's Inn Road, London, WC1X 8LT, England |
| HOBLEY, John Anthony RESIGNED | Director | 16 Jul 2009 | 11 Jul 2018 | United Kingdom | February 1941 | 28, St John's Avenue, Putney, London, SW15 6AN |
| HOBLEY, John Anthony RESIGNED | Director | 24 Jun 2002 | 31 Dec 2005 | United Kingdom | February 1941 | 28 Saint Johns Avenue, London, SW15 6AN |
| HOBLEY, John Anthony RESIGNED | Director | 25 Apr 1995 | 11 May 1999 | United Kingdom | February 1941 | 28 Saint Johns Avenue, London, SW15 6AN |
| HOPPE, Ulrich Egbert Helmut Alfred RESIGNED | Director | 19 Oct 2006 | 20 Jul 2010 | | August 1964 | Gbcic, 16, Buckingham Gate, London, SW1E 6LB |
| IFOULD, Keith William RESIGNED | Director | 14 Oct 2003 | 14 Jul 2004 | England | January 1946 | Bridus Lodge, Bridus Way, Blewbury, Oxfordshire, OX11 9NW |
| KAPPLER, Ralph Thomas RESIGNED | Director | 13 Jan 2000 | 30 Sep 2003 | | July 1963 | 339 Muswell Hill Broadway, London, N10 1BX |
| KORSAETH, Magnus RESIGNED | Director | 11 Mar 2019 | 06 Jul 2020 | England | September 1997 | 19, St. Augustines Road, London, NW1 9RL, England |
| MACMILLAN, Rory Miller RESIGNED | Director | 24 Jun 1998 | 11 May 1999 | | February 1970 | 42 Clanricarde Gardens, London, W2 4JW |
| MAINELLI, Elisabeth RESIGNED | Director | 20 Jan 2025 | 06 Jul 2026 | England | December 1964 | 34, Belgrave Square, London, SW1X 8QB |
| MALLINCKRODT, Philip Stephan Arnold RESIGNED | Director | 11 Jul 2018 | 12 Jul 2021 | England | December 1962 | 34, Belgrave Square, London, SW1X 8QB |
| MARSH, David Wayne RESIGNED | Director | 25 Apr 1995 | 24 Apr 1997 | England | July 1952 | 124 Dora Road, London, SW19 7HJ |
| MARSHALL, Wanda Elisabeth Burwell RESIGNED | Director | 15 Jul 2024 | 31 Oct 2024 | England | February 1972 | 34, Belgrave Square, London, SW1X 8QB |
| MARTIN, Leslie, Air Cdre RESIGNED | Director | 24 Jun 1998 | 11 May 1999 | | July 1920 | 198 Upper Road, Kennington, Oxford, Oxfordshire, OX1 5LR |
| MARTIN, Leslie, Air Cdre RESIGNED | Director | | 22 Apr 1998 | | July 1920 | 198 Upper Road, Kennington, Oxford, Oxfordshire, OX1 5LR |
| MARZHEUSER-WOOD, Babette RESIGNED | Director | 05 Jul 2007 | 20 Jul 2010 | United Kingdom | November 1961 | 24a Pilgrims Way East, Otford, Sevenoaks, Kent, TN14 5QN |
| MCDOWELL, Catherine Elizabeth Victoria RESIGNED | Director | 24 Jun 2002 | 26 Jul 2006 | | May 1975 | 78a Culverden Road, Balham, London, SW12 9LS |
| MCGREGOR, Peter RESIGNED | Director | | 30 Apr 1991 | | May 1926 | Dacre Cottage Pine Woods Road, Longworth, Oxfordshire, OX13 5HH |
| MCKENZIE, Stephen RESIGNED | Director | 19 Apr 2007 | 01 Dec 2011 | England | May 1967 | 4 Robin Hood Way, Greenford, Middlesex, UB6 7QN |
| MCKENZIE, Stephen RESIGNED | Director | 10 May 2006 | 26 Jul 2006 | England | May 1967 | 4 Robin Hood Way, Greenford, Middlesex, UB6 7QN |
| MEEKINGS, Karl RESIGNED | Director | 16 Jul 2009 | 09 Jul 2019 | England | March 1981 | 24, Lanercost Road, London, SW2 3DN, England |
| MEIKLE-BRIGGS, Anabel RESIGNED | Director | 21 Apr 1994 | 24 Apr 1997 | | December 1957 | 1a Emperors Gate, London, SW7 4HH |
| MITCHELL, John Matthew, Dr RESIGNED | Director | | 24 Apr 1997 | | March 1925 | The Cottage, Pains Hill Corner, Limpstead, Surrey, RH8 0RB |
| NOLL, Angelika Elisabeth RESIGNED | Director | 05 Jul 2007 | 31 Mar 2009 | | May 1969 | Flat 7, 53 Shepherds Hill, London, N6 5QP |
| NORMAN, Benedict Peter RESIGNED | Director | 28 Jul 2003 | 26 Jul 2006 | | December 1972 | 22 Kemerton Road, Camberwell, London, SE5 9AP |
| NORMAN, Frank George RESIGNED | Director | 24 Jun 1998 | 14 Jul 2004 | | February 1928 | 7 Millfield, Berkhamsted, Hertfordshire, HP4 2PB |
| NORMAN, Frank George RESIGNED | Director | 01 Apr 1993 | 22 Apr 1998 | | February 1928 | 7 Millfield, Berkhamsted, Hertfordshire, HP4 2PB |
| PATERSON, Douglas Gordon James RESIGNED | Director | 27 Jul 1999 | 17 May 2005 | United States | October 1943 | Peterborough Court, 133 Fleet Street, London, EC4A 2BB |
| RAWLINS, Peregrine Peter, Brigadier RESIGNED | Director | 31 Mar 2005 | 19 Oct 2006 | United Kingdom | March 1946 | The Grey House, Low Road, Little Cheverell, Devizes, Wiltshire, SN10 4JS |
| RAWLINS, Peregrine Peter, Brigadier RESIGNED | Director | 14 Oct 2003 | 14 Jul 2004 | United Kingdom | March 1946 | The Grey House, Low Road, Little Cheverell, Devizes, Wiltshire, SN10 4JS |
| REDDAWAY, George Frank Norman RESIGNED | Director | 01 Apr 1993 | 24 Apr 1997 | | May 1918 | 51 Carlton Hill, St Johns Wood, London, NW8 0EL |
| REDDAWAY, George Frank Norman RESIGNED | Director | | 06 Apr 1992 | | May 1918 | 51 Carlton Hill, St Johns Wood, London, NW8 0EL |
| ROBERTS, Frank Kenyon, Sir RESIGNED | Director | | 07 Jan 1998 | | October 1907 | 25 Kensington Court Gardens, London, W8 5QF |
| ROESE, Dorothy Jeanne RESIGNED | Director | 22 Apr 1998 | 19 Jun 2001 | United Kingdom | April 1945 | 4 Holly Hill, Southampton, Hampshire, SO16 7ET |
| ROESE, Karl Heinz Walter RESIGNED | Director | | 01 Apr 1993 | England | September 1940 | 4 Holly Hill, Bassett, Southampton, Hampshire, SO16 7ET |
| RUSSELL, Alan Keith, Dr RESIGNED | Director | 26 Jul 2006 | 01 Jan 2012 | United Kingdom | October 1932 | 30 Stirling Road, Chichester, West Sussex, PO19 7DS |
| RYAN, John, Prof RESIGNED | Director | 05 Oct 2004 | 05 Jul 2007 | | September 1958 | Flat 7 307 Upper Richmond Road, Putney, London, SW15 6SS |
| SAVA, Alastair RESIGNED | Director | 18 Sep 2013 | 09 May 2018 | Britain | July 1989 | 79, Woodland Drive, Hove, East Sussex, BN3 6DF, England |
| SCHERER, Nick RESIGNED | Director | 15 Jul 2024 | 06 Jul 2026 | England | October 2003 | 34, Belgrave Square, London, SW1X 8QB |
| SCHWEPCKE, Barbara, Dr RESIGNED | Director | 12 Jul 2017 | 09 Jul 2019 | England | February 1964 | 70, Cadogan Place, London, SW1X 9AH, England |
| SHERIDAN, Anthony David RESIGNED | Director | 11 Jul 2012 | 09 Jul 2019 | United Kingdom | August 1939 | 34, Belgrave Square, London, SW1X 8QB |
| SINGER, Peter James RESIGNED | Director | 24 Apr 1997 | 14 Jul 2004 | | November 1933 | Quarterwood, Nightingale Road, East Horsley, Surrey, KT24 5DZ |
| SMITH, Mark Wayne, Dr RESIGNED | Director | 27 Jul 1999 | 22 Nov 2001 | | August 1959 | Ostmark 15 Sunny Bank, Brynmawr, Ebbw Vale, Gwent, NP23 4RJ |