| WATSON, Gina Sarah ACTIVE | Secretary | 22 Dec 2016 | | | | 19 Barton Lane, Abingdon Science Park, Abingdon, Oxfordshire, OX14 3NB |
| BOHNEN, Shane ACTIVE | Director | 01 Mar 2023 | | United States | December 1974 | 614, Mckinley Place Ne, Minneapolis, Mn 55413, United States |
| GATHERUM, Sarah Jane ACTIVE | Director | 01 Aug 2022 | | England | December 1967 | 19 Barton Lane, Abingdon Science Park, Abingdon, Oxfordshire, OX14 3NB |
| SCHUESSLER, Peter, Dr ACTIVE | Director | 01 Oct 2024 | | Germany | August 1966 | 19 Barton Lane, Abingdon Science Park, Abingdon, Oxfordshire, OX14 3NB |
| BRIGHT, Ruth RESIGNED | Secretary | 31 Aug 2004 | 22 Dec 2016 | | | 19 Barton Lane, Abingdon Science Park, Abingdon, Oxfordshire, OX14 3NB |
| FINCH, William John Hugh RESIGNED | Secretary | 30 Jul 1993 | 03 Mar 1997 | | | Old Well House Church Street, Appleford, Abingdon, Oxfordshire, OX14 4PA |
| GREEN, Roberta Susan RESIGNED | Secretary | 03 Mar 1997 | 31 Aug 2004 | | | 16 Jocelyn Mead, Crediton, EX17 2EN |
| RICHARDS, Brian Mansel, Sir RESIGNED | Secretary | | 13 Sep 1991 | | | Panthers Hill Church End, Bletchingdon, Kidlington, Oxfordshire, OX5 3DJ |
| WEIR, Anthony John RESIGNED | Secretary | 13 Sep 1991 | 30 Jul 1993 | | | Thames Court, Watlington Road, Oxford, Oxfordshire, OX4 6LY |
| ALLEN, Gerald John, Dr RESIGNED | Director | 29 Sep 1992 | 03 Mar 1997 | | October 1950 | 28 Harthope Close, Rickleton, Washington, Tyne & Wear, NE38 9DZ |
| BACKES, Kathleen RESIGNED | Director | 14 Nov 2003 | 13 Jan 2016 | Usa | December 1962 | 19 Barton Lane, Abingdon Science Park, Abingdon, Oxfordshire, OX14 3NB |
| BRIGHT, Ruth RESIGNED | Director | 18 Sep 2000 | 01 Aug 2022 | England | April 1969 | 19 Barton Lane, Abingdon Science Park, Abingdon, Oxfordshire, OX14 3NB |
| CARLSON, Robert Walter RESIGNED | Director | 03 Mar 1997 | 14 Nov 2003 | | November 1946 | 10187 Bridgewater Circle, Minneapolis, Woodbury, Mn55125, Usa |
| DETWILER, Thomas Crump RESIGNED | Director | 14 Sep 1994 | 07 Jul 2000 | | December 1933 | 1601 Northrop Lane, Minneapolis Minnesota 55403, 55403, Usa |
| FINCH, William John Hugh RESIGNED | Director | 29 Sep 1992 | 03 Mar 1997 | United Kingdom | April 1958 | Old Well House Church Street, Appleford, Abingdon, Oxfordshire, OX14 4PA |
| FURLOW, Brenda Swierenga RESIGNED | Director | 13 Jan 2016 | 01 Mar 2023 | United States | June 1958 | 19 Barton Lane, Abingdon Science Park, Abingdon, Oxfordshire, OX14 3NB |
| GORDON, John Laurie, Dr RESIGNED | Director | 13 Sep 1991 | 30 Jul 1993 | | July 1944 | Bishop Oak Jarnway, Boars Hill, Oxford, OX1 5JF |
| GREEN, Roberta Susan RESIGNED | Director | 03 Mar 1997 | 01 Jul 2005 | | February 1955 | 16 Jocelyn Mead, Crediton, EX17 2EN |
| HIPPEL, James RESIGNED | Director | 13 Jan 2016 | 16 Jun 2016 | Usa | November 1970 | 19 Barton Lane, Abingdon Science Park, Abingdon, Oxfordshire, OX14 3NB |
| KUMMETH, Charles Robert RESIGNED | Director | 24 Jul 2013 | 01 Sep 2017 | Usa | June 1960 | 19 Barton Lane, Abingdon Science Park, Abingdon, Oxfordshire, OX14 3NB |
| LUCAS, Roger, Doctor RESIGNED | Director | 16 Feb 1994 | 30 Jun 1995 | | October 1943 | 41 East Pleasant Lake Road, North Oaks Minnesota, 55127, U S A |
| MARTIN, Anthony Francis, Doctor RESIGNED | Director | 13 Sep 1991 | 12 Mar 1993 | | June 1954 | 7 Tuckers Drive, Holmer Green, High Wycombe, Buckinghamshire, HP15 6SY |
| MCCULLAGH, Keith Graham, Dr RESIGNED | Director | 19 Oct 1992 | 30 Jul 1993 | United Kingdom | November 1943 | Cuddington Mill, Cuddington, Aylesbury, Buckinghamshire, HP18 0BP |
| MELSEN, Gregory J RESIGNED | Director | 21 Jun 2005 | 31 Jan 2014 | Usa | April 1952 | 19 Barton Lane, Abingdon Science Park, Abingdon, Oxfordshire, OX14 3NB |
| NOBLE, James Julian RESIGNED | Director | 13 Sep 1991 | 30 Jul 1993 | | March 1959 | Fernbank, 13 Elsfield Road Old Marston, Oxford, Oxon, OX3 0PR |
| OLAND, Thomas E RESIGNED | Director | 30 Jun 1995 | 30 Nov 2012 | Usa | March 1941 | 614 Mckinley Place N E, Minneapolis, Minnesota, 55413 Usa |
| RICHARDS, Brian Mansel, Sir RESIGNED | Director | | 13 Sep 1991 | | September 1932 | Panthers Hill Church End, Bletchingdon, Kidlington, Oxfordshire, OX5 3DJ |
| ROWLING, Richard Robert RESIGNED | Director | 03 Mar 1997 | 09 May 1997 | | February 1967 | 17 Catherine Street, Oxford, Oxfordshire, OX4 3AQ |
| STAPLETON, Gary Michael RESIGNED | Director | 16 Jun 2016 | 01 Mar 2023 | England | December 1963 | 19 Barton Lane, Abingdon Science Park, Abingdon, Oxfordshire, OX14 3NB |