| ATTWOOD, Gillian ACTIVE | Director | 01 Jul 2026 | | England | June 1965 | 17b Park Square, Avebury Boulevard, Milton Keynes, Bucks, MK9 3FW, England |
| CHATTERJI, Anando ACTIVE | Director | 12 Aug 2024 | | India | April 1978 | 17b Park Square, Avebury Boulevard, Milton Keynes, Bucks, MK9 3FW, England |
| CLARKE, Peter David ACTIVE | Director | 12 Aug 2025 | | England | March 1965 | 17b Park Square, Avebury Boulevard, Milton Keynes, Bucks, MK9 3FW, England |
| HAIGH, Rex, Dr ACTIVE | Director | 05 Nov 2007 | | England | February 1957 | 17b Park Square, Avebury Boulevard, Milton Keynes, Bucks, MK9 3FW, England |
| KHAWANI-CONNETT, Neelam ACTIVE | Director | 27 Mar 2023 | | United Kingdom | October 1971 | 17b Park Square, Avebury Boulevard, Milton Keynes, Bucks, MK9 3FW, England |
| PUCHIVAILO, Mariana Cardoso, Prof Dr ACTIVE | Director | 01 Jul 2026 | | Brazil | January 1986 | 17b Park Square, Avebury Boulevard, Milton Keynes, Bucks, MK9 3FW, England |
| ROSE, River, Mx ACTIVE | Director | 01 Jun 2023 | | England | July 1994 | 17b Park Square, Avebury Boulevard, Milton Keynes, Bucks, MK9 3FW, England |
| MONEY, Sheena Lorraine RESIGNED | Secretary | 05 Nov 2007 | 01 Aug 2008 | | | 83, The Avenue, Mortimer, Reading, Berkshire, RG7 3QU, England |
| STAFFORD, Clare Annette RESIGNED | Secretary | 01 Aug 2008 | 01 Nov 2010 | | | The Havethuset, Mortimer Hill, The Street, Mortimer, Berkshire, RG7 3PW |
| HCS SECRETARIAL LIMITED RESIGNED | Nominee Secretary | 05 Nov 2007 | 08 Nov 2007 | | | 44, Upper Belgrave Road, Clifton, Bristol, BS8 2XN, Uk |
| ANDERSON, Neill RESIGNED | Director | 05 Nov 2007 | 01 Aug 2008 | | December 1944 | 1 Mallinson Court, Bridge Street Osney Island, Oxford, Oxfordshire, OX2 0DL |
| HARE, David Andrew RESIGNED | Director | 15 Oct 2009 | 14 Sep 2018 | England | August 1958 | 29, Woburn Close, Caversham, Reading, RG4 7HB, England |
| HILLYER, Mark James RESIGNED | Director | 01 Aug 2008 | 17 Dec 2010 | England | September 1960 | The Havethuset, Mortimer Hill, The Street, Mortimer, Reading, Berkshire, RG7 3PW |
| HOLMES, Peter Robert, Dr RESIGNED | Director | 05 Sep 2012 | 29 Jan 2014 | England | November 1947 | The Yurt, Iver Environment Centre, Slough Road, Iver Heath, Buckinghamshire, SL0 0EB, England |
| JONES, Vanessa Gay RESIGNED | Director | 16 Oct 2013 | 14 Oct 2024 | United Kingdom | September 1966 | 22, Woburn Close, Caversham, Reading, RG4 7HB, England |
| JONES, Vanessa Gay RESIGNED | Director | 05 Nov 2007 | 12 Mar 2009 | United Kingdom | September 1966 | 29 Woburn Close, Caversham, Reading, Berkshire, RG4 7HB |
| LEES, Janine, Dr RESIGNED | Director | 19 Dec 2013 | 16 Mar 2018 | England | January 1948 | 57, Harrow Road, Nottingham, NG8 1FG, England |
| LOMAS, Gwyneth Fiona RESIGNED | Director | 30 Oct 2012 | 28 Sep 2017 | United Kingdom | November 1963 | The Yurt, Iver Environment Centre, Slough Road, Iver Heath, Buckinghamshire, SL0 0EB, England |
| MATAKOVIC MANCA, Aleksandra Sasha, Dr RESIGNED | Director | 16 Sep 2022 | 12 Aug 2024 | England | February 1975 | 29, Woburn Close, Caversham, Reading, RG4 7HB, England |
| MONEY, Sheena Lorraine RESIGNED | Director | 01 Jan 2009 | 24 Nov 2011 | England | June 1960 | 83, The Avenue, Mortimer, Reading, Berkshire, RG7 3QU, England |
| PARKHE, Shama RESIGNED | Director | 16 Sep 2022 | 31 May 2025 | India | September 1990 | 17b Park Square, Avebury Boulevard, Milton Keynes, Bucks, MK9 3FW, England |
| PEARCE, Stephen, Dr RESIGNED | Director | 26 Feb 2008 | 24 Nov 2011 | England | March 1966 | Manzil Way, Cowley Road, Oxford, Oxfordshire, OX4 1XE |
| PEARCE, Steven, Dr RESIGNED | Director | 14 Sep 2018 | 19 Mar 2022 | England | March 1966 | Complex Needs Service, Manzil Way, Oxford, OX4 1XE, England |
| STAFFORD, Clare Annette RESIGNED | Director | 05 Nov 2007 | 01 Nov 2010 | England | March 1964 | The Havethuset, Mortimer Hill, The Street, Mortimer, Berkshire, RG7 3PW |
| WELSH, Hilary Ann RESIGNED | Director | 16 Dec 2016 | 14 Sep 2018 | England | July 1961 | 29, Woburn Close, Caversham, Reading, RG4 7HB, England |
| WILLIAMS, Susan Barbara, Dr RESIGNED | Director | 05 Sep 2012 | 29 Jan 2014 | England | July 1961 | The Yurt, Iver Environment Centre, Slough Road, Iver Heath, Buckinghamshire, SL0 0EB, England |