| WALTER, Natalie Louise ACTIVE | Secretary | 24 Jul 2019 | | | | Windrush Court, Transport Way, Oxford, OX4 6LT |
| CRABTREE, Lucinda Claire, Dr. ACTIVE | Director | 02 Sep 2024 | | United Kingdom | August 1979 | Windrush Court, Transport Way, Oxford, OX4 6LT |
| MATHIAS, Frank, Dr ACTIVE | Director | 27 Mar 2023 | | Germany | September 1962 | Windrush Court, Transport Way, Oxford, OX4 6LT |
| KINGSMAN, Susan Mary, Professor RESIGNED | Secretary | 15 Mar 1995 | 13 Dec 1996 | | | Greystones Middle Street, Islip, Kidlington, Oxfordshire, OX5 2SF |
| PAYNTER, Stuart RESIGNED | Secretary | 01 Oct 2017 | 24 Jul 2019 | | | Windrush Court, Transport Way, Oxford, OX4 6LT |
| WATTS, Timothy William RESIGNED | Secretary | 10 Feb 2012 | 30 Sep 2017 | | | Windrush Court, Transport Way, Oxford, OX4 6LT, England |
| WOOD, Andrew Brian RESIGNED | Secretary | 13 Dec 1996 | 09 Feb 2012 | | | Medawar Centre, Oxford Science Park, Oxford, OX4 4GA |
| SWIFT INCORPORATIONS LIMITED RESIGNED | Nominee Secretary | 03 Mar 1995 | 15 Mar 1995 | | | 26, Church Street, London, NW8 8EP |
| BLAKE, Paul, Dr RESIGNED | Director | 02 Sep 2014 | 31 Aug 2016 | Usa | December 1947 | Windrush Court, Transport Way, Oxford, OX4 6LT, England |
| CLARK, June RESIGNED | Director | 02 Sep 1996 | 08 May 1997 | | July 1947 | 22 Stratfield Road, Summertown, Oxford, OX2 7BQ |
| DAWSON, John Andrew RESIGNED | Director | 20 Apr 2009 | 27 May 2022 | United Kingdom | September 1959 | Windrush Court, Transport Way, Oxford, OX4 6LT, England |
| DOLIVEUX, Frederic Roch RESIGNED | Director | 18 May 2022 | 27 Mar 2023 | Switzerland | November 1956 | Windrush Court, Transport Way, Oxford, OX4 6LT |
| DURRANDS, Paul Kenneth, Dr RESIGNED | Director | 22 Jun 2000 | 30 Apr 2002 | United Kingdom | July 1962 | Linkside Cottage, Tubney, Oxfordshire, OX13 5QL |
| GOODMAN, Alan Gilbert RESIGNED | Director | 20 May 1996 | 27 Feb 1997 | | January 1951 | 16 Cantelupe Road, Haslingfield, Cambridge, Cambridgeshire, CB3 7LU |
| KINGSMAN, Alan John, Professor RESIGNED | Director | 15 Mar 1995 | 05 May 2011 | United Kingdom | April 1950 | The Medawar Centre, Robert Robinson, Avenue, Oxford Science Park, Oxford, OX4 4GA |
| KINGSMAN, Susan Mary, Professor RESIGNED | Director | 15 Mar 1995 | 01 Jul 2008 | | June 1952 | The Medawar Centre, Robert Robinson, Avenue, Oxford Science Park, Oxford, OX4 4GA |
| MACKENZIE, Neill Moray, Dr RESIGNED | Director | 01 Sep 1996 | 30 Nov 2002 | United Kingdom | December 1953 | 24, Belsize Close, Jersey Farm, St. Albans, Hertfordshire, AL4 9YD |
| NOLAN, Peter John RESIGNED | Director | 01 May 2002 | 02 Jul 2018 | United Kingdom | March 1953 | Windrush Court, Transport Way, Oxford, OX4 6LT, England |
| PAYNTER, Stuart RESIGNED | Director | 29 Aug 2017 | 02 Sep 2024 | England | May 1972 | Windrush Court, Transport Way, Oxford, OX4 6LT |
| RICHARDS, Brian Mansel, Sir RESIGNED | Director | 20 May 1996 | 26 Jun 1998 | | September 1932 | Panthers Hill Church End, Bletchingdon, Kidlington, Oxfordshire, OX5 3DJ |
| TURNER, Roger John Langdon RESIGNED | Director | 09 Aug 1996 | 31 Dec 1996 | | August 1948 | South Lodge, Taplow Common Road, Burnham, Buckinghamshire, SL1 8LP |
| WATTS, Timothy William RESIGNED | Director | 10 Feb 2012 | 30 Sep 2017 | England | July 1957 | Windrush Court, Transport Way, Oxford, OX4 6LT, England |
| WOOD, Andrew Brian RESIGNED | Director | 13 Dec 1996 | 09 Feb 2012 | United Kingdom | May 1958 | Medawar Centre, Oxford Science Park, Oxford, OX4 4GA |
| INSTANT COMPANIES LIMITED RESIGNED | Nominee Director | 03 Mar 1995 | 15 Mar 1995 | | | 1, Mitchell Lane, Bristol, Avon, BS1 6BU |