| PAYNE, Julie Dawn ACTIVE | Secretary | 01 Aug 2010 | | | | 7 North Road, Maidenhead, Berkshire, SL6 1PE |
| DATTA, Dev Borunendra Nath, Dr ACTIVE | Director | 18 Jul 2018 | | Wales | August 1974 | 7 North Road, Maidenhead, Berkshire, SL6 1PE |
| DIXON, Thomas Matthew ACTIVE | Director | 31 Aug 2018 | | England | March 1980 | 7 North Road, Maidenhead, Berkshire, SL6 1PE |
| GREAVES, Andrew Jeffery ACTIVE | Director | 07 Mar 2018 | | England | March 1965 | 7 North Road, Maidenhead, Berkshire, SL6 1PE |
| GREEN, Peter Huw, Dr ACTIVE | Director | 11 May 2017 | | England | November 1960 | 7 North Road, Maidenhead, Berkshire, SL6 1PE |
| HARRISON, Andrew David ACTIVE | Director | 12 Dec 2024 | | England | August 1971 | 7 North Road, Maidenhead, Berkshire, SL6 1PE |
| HUGHES, Elizabeth Ann, Professor ACTIVE | Director | 19 Dec 2013 | | United Kingdom | January 1957 | 7 North Road, Maidenhead, Berkshire, SL6 1PE |
| NEELY, Dermot, Dr ACTIVE | Director | 11 Jul 2011 | | United Kingdom | January 1958 | 7 North Road, Maidenhead, Berkshire, SL6 1PE |
| PHIPPS, Neil Robert ACTIVE | Director | 24 Jul 2018 | | England | April 1955 | 7 North Road, Maidenhead, Berkshire, SL6 1PE |
| POTTLE, Alison ACTIVE | Director | 13 Aug 2018 | | England | March 1963 | 7 North Road, Maidenhead, Berkshire, SL6 1PE |
| SORAN, Handrean, Dr ACTIVE | Director | 12 Mar 2020 | | England | April 1968 | 7 North Road, Maidenhead, Berkshire, SL6 1PE |
| GOLDWATER, Michael Harry RESIGNED | Secretary | 19 Apr 1993 | 15 Jun 1994 | | | 26 Sandal Road, New Malden, Surrey, KT3 5AP |
| LIVINGSTON, Michael Stuart RESIGNED | Secretary | 01 Sep 1997 | 12 Jul 2010 | | | 33 Lady Place, Sutton Courtenay, Abingdon, Oxfordshire, OX14 4FB |
| STEELE, Donald William RESIGNED | Secretary | 19 Jul 1991 | 31 Mar 1993 | | | 61 Mellow Lane East, Hayes, Middlesex, UB4 8ES |
| TURNER, Michael Rex, Doctor RESIGNED | Secretary | 15 Jun 1994 | 31 Aug 1997 | | | Lymington House Chauntry Road, Maidenhead, Berkshire, SL6 1TS |
| BARRETT, Anthony John Walter RESIGNED | Director | 19 Jul 1991 | 30 Oct 1992 | | December 1939 | 15 South Maundin, Hughenden Valley, High Wycombe, Buckinghamshire, HP14 4LZ |
| BEAVEN-TAYLOR, Sylvia Frances RESIGNED | Director | 22 Nov 1997 | 06 Dec 2001 | | April 1936 | Bay Tree House, The Green East Hanney, Wantage, Oxfordshire, OX12 0HQ |
| BENDER, Clive Bernard RESIGNED | Director | 26 Nov 1999 | 01 Jan 2002 | | October 1943 | 17 St Marys Avenue, London, N3 1SN |
| BENNETT, Joanne RESIGNED | Director | 02 Oct 2013 | 15 Jul 2026 | England | February 1977 | 7 North Road, Maidenhead, Berkshire, SL6 1PE |
| BOLEY, Stephen David RESIGNED | Director | 04 Oct 2010 | 05 Jul 2023 | England | March 1951 | 7 North Road, Maidenhead, Berkshire, SL6 1PE |
| BRAIN, Roger RESIGNED | Director | 01 Nov 1997 | 26 Nov 1999 | | November 1952 | Oakwood Leigh Road, Chulmleigh, Devon, EX18 7JW |
| BROOME, Katharine RESIGNED | Director | 28 Jun 2002 | 08 Mar 2004 | | April 1932 | 19 Cherwell Street, Oxford, OX4 1BG |
| CAMPBELL, Dalhia RESIGNED | Director | 01 Nov 1997 | 06 Dec 2001 | | July 1972 | 54 Bitterne Avenue, Tilehurst, Reading, Berkshire, RG31 4SP |
| CONNOR, Hazel Mary RESIGNED | Director | 19 Jul 1991 | 10 Apr 1997 | | August 1948 | 28 Shrewton Close, Trowbridge, Wiltshire, BA14 0XS |
| CRAMB, Robert, Dr RESIGNED | Director | 07 Jul 2011 | 08 Jun 2021 | England | December 1953 | 7 North Road, Maidenhead, Berkshire, SL6 1PE |
| CROZIER, Michael Julian RESIGNED | Director | 01 Dec 2010 | 23 Mar 2017 | Uk | June 1948 | 7 North Road, Maidenhead, Berkshire, SL6 1PE |
| DAVIES, Dawn Carol RESIGNED | Director | 02 Dec 2004 | 02 Dec 2009 | | March 1963 | 286 Milton Road, Weston Super Mare, North Somerset, BS22 8EN |
| DOBSON, Bryan Andrew RESIGNED | Director | 20 Apr 2017 | 15 Jul 2026 | England | January 1974 | 7 North Road, Maidenhead, Berkshire, SL6 1PE |
| DUMSDAY, Yvonne RESIGNED | Director | 19 Jul 1991 | 27 Jun 2008 | | December 1943 | Mere House Main Street, Swanland, North Ferriby, North Humberside, HU14 3QP |
| EDWARDS, Raymond Brunton RESIGNED | Director | 03 Jul 2014 | 04 Jul 2018 | England | October 1937 | 7 North Road, Maidenhead, Berkshire, SL6 1PE |
| EDWARDS, Raymond Brunton RESIGNED | Director | 28 Jun 2002 | 31 Dec 2010 | England | October 1937 | Beech House Longwood Drive, Jordans, Buckinghamshire, HP9 2SS |
| ELLIS, Brian RESIGNED | Director | 06 Feb 2008 | 10 Mar 2010 | | March 1944 | 20, Carmelite Way, Hartley, Longfield, Kent, DA3 8BP, England |
| FINNIE, Robert Marshall, Dr RESIGNED | Director | 28 Jun 2006 | 07 Jul 2011 | Scotland | March 1950 | 5 Howard Place, Edinburgh, EH3 5JZ |
| FISHER, David RESIGNED | Director | 26 Sep 1992 | 30 Jan 1993 | | May 1946 | 15 Cheshire Close, Salisbury, Wiltshire, SP2 9JT |
| GHOSH, Tamar Anna RESIGNED | Director | 09 Dec 2011 | 03 Jun 2017 | England | August 1974 | 7 North Road, Maidenhead, Berkshire, SL6 1PE |
| GOLDWATER, Michael Harry RESIGNED | Director | 13 Aug 1997 | 29 Nov 2002 | United Kingdom | April 1946 | 26 Sandal Road, New Malden, Surrey, KT3 5AP |
| GOLDWATER, Michael Harry RESIGNED | Director | 26 Sep 1992 | 15 Jun 1994 | United Kingdom | April 1946 | 26 Sandal Road, New Malden, Surrey, KT3 5AP |
| HOWELLS, Gaenor Wyn RESIGNED | Director | 04 Oct 2010 | 24 Mar 2021 | England | August 1960 | 7 North Road, Maidenhead, Berkshire, SL6 1PE |
| HUGHES, Elizabeth Ann, Dr RESIGNED | Director | 29 Mar 1993 | 28 Jun 2012 | United Kingdom | January 1957 | 7 North Road, Maidenhead, Berkshire, SL6 1PE |
| JARVIS, Sarah Caroline, Dr RESIGNED | Director | 27 Jun 2008 | 28 Jun 2008 | England | December 1962 | 15 Audley Road, London, W5 3ES |
| KENNERLEY, Tricia RESIGNED | Director | 17 Dec 2014 | 19 Apr 2024 | England | April 1965 | 7 North Road, Maidenhead, Berkshire, SL6 1PE |
| KERR, Alexander George RESIGNED | Director | 10 Nov 2017 | 02 Aug 2018 | England | December 1957 | 7 North Road, Maidenhead, Berkshire, SL6 1PE |
| KIM, Nicole Sunghan RESIGNED | Director | 12 Mar 2020 | 23 May 2023 | England | August 1975 | 7 North Road, Maidenhead, Berkshire, SL6 1PE |
| LAKER, Michael Francis, Dr RESIGNED | Director | 28 Mar 2013 | 05 Feb 2014 | United Kingdom | June 1945 | 7 North Road, Maidenhead, Berkshire, SL6 1PE |
| LAZARUS, Edward Alfred RESIGNED | Director | 01 Nov 1997 | 28 Jun 2007 | | December 1934 | Thundridge George Inn Place, Stoke Goldington, Newport Pagnell, Buckinghamshire, MK16 8NW |
| LAZARUS, Edward Alfred RESIGNED | Director | 19 Jul 1991 | 26 Sep 1992 | | December 1934 | Thundridge George Inn Place, Stoke Goldington, Newport Pagnell, Buckinghamshire, MK16 8NW |
| LEEDS, Anthony Richard, Dr RESIGNED | Director | 06 Mar 2006 | 07 Jul 2011 | England | August 1948 | 95 Brixham Crescent, Ruislip, Middlesex, HA4 8TT |
| LEES, Tim RESIGNED | Director | 06 Feb 2008 | 26 Apr 2010 | United Kingdom | June 1962 | 3 Malthouse Cottages, Chawton, Alton, Hampshire, GU34 1SH |
| MACKNESS, Michael Ian, Doctor RESIGNED | Director | 28 Jun 2002 | 01 Jul 2004 | | March 1957 | 27 Cote Green Road, Marple Bridge, Cheshire, SK6 5EW |
| MALING, Cordelia RESIGNED | Director | 27 Mar 1992 | 09 Sep 1995 | | May 1967 | 13 Glyme Close, Woodstock, Oxfordshire, OX20 1LB |
| MERCHANT, Zoe Anne RESIGNED | Director | 03 Jul 2013 | 05 Mar 2020 | England | January 1975 | 7 North Road, Maidenhead, Berkshire, SL6 1PE |
| MORRELL, Jonathan Mark, Doctor RESIGNED | Director | 26 Nov 1999 | 01 Jul 2004 | | June 1952 | 422 Harold Road, Hastings, East Sussex, TN35 5HG |
| MORRIS, Clifford Laurence RESIGNED | Director | 19 Jul 1991 | 03 Feb 1997 | | July 1942 | 31 Stone Lea, Aldridge, Walsall, West Midlands, WS9 0HU |
| MYOTT, Sophie Ruth RESIGNED | Director | 24 Jul 2018 | 02 Dec 2020 | England | May 1992 | 7 North Road, Maidenhead, Berkshire, SL6 1PE |
| NEELY, Robert Dermot Garmany, Doctor RESIGNED | Director | 28 Jun 2002 | 27 Jun 2008 | | January 1958 | 12 Albert Street, Durham City, Durham, DH1 4RL |
| NEIL, Hugh Andrew Wade, Professor RESIGNED | Director | 02 Dec 2004 | 07 Jul 2010 | England | September 1947 | 40 Beechcroft Road, Summertown, Oxford, Oxfordshire, OX2 7AZ |
| PETER, John Beverly, Dr RESIGNED | Director | 04 Oct 2010 | 10 Apr 2012 | England | March 1943 | 7 North Road, Maidenhead, Berkshire, SL6 1PE |
| RECKLESS, John Phillip David, Dr RESIGNED | Director | 28 Jun 2002 | 04 Jul 2018 | England | June 1945 | 7 North Road, Maidenhead, Berkshire, SL6 1PE |
| RECORD, Neil Peter RESIGNED | Director | 19 Jul 1991 | 26 Sep 1992 | | June 1953 | Western House West Street, Marlow, Buckinghamshire, SL7 2BS |
| REES, John Alan Evan, Doctor RESIGNED | Director | 19 Feb 2007 | 15 Jul 2026 | Wales | September 1951 | 7 North Road, Maidenhead, Berkshire, SL6 1PE |
| SATTAR, Naveed, Professor RESIGNED | Director | 28 Jun 2002 | 29 Jun 2006 | | November 1967 | 65 Finlay Rise, Milngavie, Glasgow, G62 6QL |
| SEED, Mary, Dr RESIGNED | Director | 16 Jul 2001 | 04 Jul 2003 | | September 1936 | 15 Saint Olaves Court, London, W2 4JY |
| SIERWALD, Robert Christopher RESIGNED | Director | 14 Sep 1991 | 22 Nov 1997 | | March 1942 | Grange Cottage 16 Bath Road, Tetbury, Gloucestershire, GL8 8EF |
| SIVERS, Francesca Caroline, Dr RESIGNED | Director | 16 Jul 2002 | 29 Jun 2006 | United Kingdom | October 1953 | 19 Latimer Place, Corney Reach, London, W4 2UD |
| SMITH, Alan Richard RESIGNED | Director | 19 Jul 1991 | 01 Jul 2004 | | November 1933 | 19 Lawson Gardens, Pinner, Middlesex, HA5 2EB |
| WEST, Lynn RESIGNED | Director | 16 Oct 2006 | 31 Dec 2010 | England | January 1956 | Woodside House, 6 Long Wood Drive, Jordans, Beaconsfield, Buckinghamshire, HP9 2SS |
| WIERZBICKI, Anthony Stanislav, Dr RESIGNED | Director | 28 Jun 2002 | 27 Jun 2008 | England | July 1962 | 16 Merrivale Square, Walton Well Manor, Oxford, Oxfordshire, OX2 6QX |
| WINDER, Anthony Frederick, Professor RESIGNED | Director | 26 Nov 1999 | 06 Dec 2001 | | March 1938 | Burtons Wood Burtons Lane, Chalfont St Giles, Buckinghamshire, HP8 4BA |
| WINDER, Anthony Frederick, Professor RESIGNED | Director | 19 Jul 1991 | 26 Sep 1992 | | March 1938 | Burtons Wood Burtons Lane, Chalfont St Giles, Buckinghamshire, HP8 4BA |
| WRIGHT, John William, Doctor RESIGNED | Director | 28 Jun 2002 | 07 Sep 2007 | | February 1944 | 8 Critchmere Vale, Haslemere, Surrey, GU27 1PS |