| MURDOCH, Andrew James ACTIVE | Secretary | 06 Oct 2023 | | | | 101, Park Drive, Milton Park, Abingdon, Oxfordshire, OX14 4RY, United Kingdom |
| GREEN, Christopher James ACTIVE | Director | 02 Nov 2023 | | England | August 1981 | 101, Park Drive, Milton Park, Abingdon, Oxfordshire, OX14 4RY, United Kingdom |
| LEMMON, Richard Alan ACTIVE | Director | 02 Nov 2023 | | United States | August 1959 | 101, Park Drive, Milton Park, Abingdon, Oxfordshire, OX14 4RY, United Kingdom |
| ATTERBURY, Karen Lorraine RESIGNED | Secretary | 09 May 2022 | 28 Feb 2023 | | | 20, Western Avenue, Milton Park, Abingdon, Oxfordshire, OX14 4SH, United Kingdom |
| GORMLEY, David Joseph RESIGNED | Secretary | 04 Dec 2018 | 04 Feb 2022 | | | 20, Western Avenue, Milton Park, Abingdon, Oxfordshire, OX14 4SH, United Kingdom |
| HOPSON III, Preston RESIGNED | Secretary | 28 Feb 2023 | 06 Oct 2023 | | | 3475, E. Foothill Boulevard, Pasadena, California, 91107, United States |
| RIGBY, April RESIGNED | Secretary | 23 Jul 1993 | 25 Sep 2008 | | | Bridfield House, Lambridge Wood Road, Henley On Thames, Oxfordshire, RG9 3BP |
| ROWE, Nicholas RESIGNED | Secretary | 04 Feb 2022 | 09 May 2022 | | | 20, Western Avenue, Milton Park, Abingdon, Oxfordshire, OX14 4SH, United Kingdom |
| ROWE, Nicholas RESIGNED | Secretary | 25 Sep 2008 | 04 Dec 2018 | | | 20, Western Avenue, Milton Park, Abingdon, Oxfordshire, OX14 4SH, United Kingdom |
| SECCOMBE, Jonathan Lawrence RESIGNED | Secretary | | 23 Jul 1993 | | | Fairoak House, Marsh Baldon, Oxford, Oxon, OX44 9NJ |
| BAINBRIDGE, Allison Margaret RESIGNED | Director | 01 Jun 2017 | 24 Jan 2023 | England | August 1960 | 20, Western Avenue, Milton Park, Abingdon, Oxfordshire, OX14 4SH, United Kingdom |
| BENNETT, John Henry RESIGNED | Director | 27 Apr 2016 | 31 May 2017 | England | November 1947 | 20, Western Avenue, Milton Park, Abingdon, Oxfordshire, OX14 4SH, United Kingdom |
| BENNETT, John Henry RESIGNED | Director | 25 May 2006 | 01 May 2015 | England | November 1947 | 20, Western Avenue, Milton Park, Abingdon, Oxfordshire, OX14 4SH, United Kingdom |
| BROWNLIE, William RESIGNED | Director | 23 Jan 2023 | 02 Nov 2023 | United States | June 1953 | 3475, E. Foothill Blvd., Pasadena, Ca 91107, United States |
| CHARLTON, Louise Elizabeth RESIGNED | Director | 22 May 2008 | 04 Aug 2017 | United Kingdom | May 1960 | 20, Western Avenue, Milton Park, Abingdon, Oxfordshire, OX14 4SH, United Kingdom |
| CLOUSTON, James Brian RESIGNED | Director | | 27 Jul 1992 | | February 1935 | Parkhill Princes Street, Durham City, Durham, DH1 4RP |
| COTTRELL, Judith RESIGNED | Director | 30 Apr 2020 | 28 Feb 2023 | United Kingdom | November 1971 | 20, Western Avenue, Milton Park, Abingdon, Oxfordshire, OX14 4SH, United Kingdom |
| DEVLIN, Roger William RESIGNED | Director | 29 Apr 2002 | 06 May 2011 | United Kingdom | August 1957 | Bearehurst, Henhurst Cross Lane, Coldharbour, Surrey, RH5 4LR |
| DOUGLAS, John Matheson RESIGNED | Director | 01 Jun 2017 | 24 Jan 2023 | England | January 1962 | 20, Western Avenue, Milton Park, Abingdon, Oxfordshire, OX14 4SH, United Kingdom |
| DOWEN, Peter Burl RESIGNED | Director | | 30 Sep 2011 | United Kingdom | February 1949 | 10 Crossgate Peth, Durham City, Durham, DH1 4PZ |
| GILLESPIE, Andrew James RESIGNED | Director | 23 Jan 2023 | 02 Nov 2023 | England | May 1969 | 3, Sovereign Square, Sovereign Street, Leeds, LS1 4ER, England |
| GLICKMAN, Catherine Janet RESIGNED | Director | 02 Aug 2018 | 30 Jun 2022 | England | September 1957 | 20, Western Avenue, Milton Park, Abingdon, Oxfordshire, OX14 4SH, United Kingdom |
| GRAHAM, Tracey RESIGNED | Director | 12 Sep 2011 | 03 Sep 2015 | England | July 1965 | 20, Western Avenue, Milton Park, Abingdon, Oxfordshire, OX14 4SH, United Kingdom |
| HEARNE, Alan Stephen, Dr RESIGNED | Director | | 31 Aug 2017 | England | August 1952 | 20, Western Avenue, Milton Park, Abingdon, Oxfordshire, OX14 4SH, United Kingdom |
| LAND, Harry Brook RESIGNED | Director | 23 Oct 1997 | 31 Oct 2016 | United Kingdom | March 1949 | 20, Western Avenue, Milton Park, Abingdon, Oxfordshire, OX14 4SH, United Kingdom |
| LEVER, Kenneth RESIGNED | Director | 01 Nov 2016 | 24 Jan 2023 | England | September 1953 | 20, Western Avenue, Milton Park, Abingdon, Oxfordshire, OX14 4SH, United Kingdom |
| LOOKER, Roger Frank RESIGNED | Director | | 24 Oct 1997 | United Kingdom | October 1951 | Norwood Farmhouse, Elvedon Road, Cobham, Surrey, KT11 1BS |
| MARTIN, Paul Michael RESIGNED | Director | 18 Dec 1997 | 31 Mar 2005 | | January 1955 | Coachways Woodlands Drive, Rawdon, Leeds, West Yorks, LS19 6JZ |
| MCKELVY, Michael RESIGNED | Director | 01 May 2018 | 24 Jan 2023 | United States | March 1959 | 20, Western Avenue, Milton Park, Abingdon, Oxfordshire, OX14 4SH, United Kingdom |
| MCPHERSON, Karen Margaret RESIGNED | Director | 14 Jun 2005 | 06 May 2011 | England | October 1951 | 61 Devonshire Road, Chiswick, London, W4 2HU |
| MILLER-BAKEWELL, Robert Lewis RESIGNED | Director | 04 May 2010 | 01 May 2019 | United Kingdom | February 1953 | 20, Western Avenue, Milton Park, Abingdon, Oxfordshire, OX14 4SH, United Kingdom |
| PAGE, Andrew RESIGNED | Director | 15 Sep 2014 | 26 Apr 2016 | England | July 1958 | 20, Western Avenue, Milton Park, Abingdon, Oxfordshire, OX14 4SH, United Kingdom |
| PARRY, Graham David Richard RESIGNED | Director | | 25 Feb 2002 | | June 1945 | 1 Trinity Court, School Lane, Hoylake, Wirral, CH47 3BA |
| PEACE, Elizabeth Ann RESIGNED | Director | 11 Jul 2017 | 24 Jan 2023 | United Kingdom | December 1952 | 20, Western Avenue, Milton Park, Abingdon, Oxfordshire, OX14 4SH, United Kingdom |
| RIGBY, April RESIGNED | Director | 23 Jul 1993 | 01 Nov 2000 | | August 1961 | Bridfield House, Lambridge Wood Road, Henley On Thames, Oxfordshire, RG9 3BP |
| SECCOMBE, Jonathan Lawrence RESIGNED | Director | | 23 Jul 1993 | | November 1948 | Fairoak House, Marsh Baldon, Oxford, Oxon, OX44 9NJ |
| STEIJN, Bernardus Josephus Van RESIGNED | Director | 24 Apr 1997 | 19 Dec 2002 | | January 1943 | Merellaan 9, 2321 Meer, Hoogstraten, Belgium |
| THIELEN, Robert Henricus Leonardus Maria RESIGNED | Director | 19 Dec 2002 | 31 Dec 2005 | | August 1961 | Waterschapslaan 13, 1261 Jr Blaricum, Netherlands |
| TROUP, Andrew Richard Gordon RESIGNED | Director | | 05 Nov 2009 | United Kingdom | August 1957 | Sandfords, Bampton, Oxfordshire, OX18 2ND |
| WILLIAMS, John Philip, Dr RESIGNED | Director | 24 Nov 2005 | 30 Sep 2016 | England | January 1953 | 20, Western Avenue, Milton Park, Abingdon, Oxfordshire, OX14 4SH, United Kingdom |
| WOOD, Christopher Hereward Vaughan RESIGNED | Director | 01 May 2000 | 30 Apr 2003 | United Kingdom | January 1951 | 3 Stowe Road, London, W12 8BQ |
| YOUNG, Gary Richard RESIGNED | Director | 01 Nov 2000 | 30 Apr 2020 | England | January 1960 | 20, Western Avenue, Milton Park, Abingdon, Oxfordshire, OX14 4SH, United Kingdom |