| SAINTCLAIR ABBOTT, Joanne ACTIVE | Secretary | 16 Mar 2004 | | | | Moor Hall, Cookham, Berkshire, SL6 9QH |
| DALY, Christopher Michael Bowes ACTIVE | Director | 04 May 2016 | | England | April 1964 | Moor Hall, Cookham, Berkshire, SL6 9QH |
| YUILLE, Andrew Buchanan ACTIVE | Director | 25 Jan 2024 | | England | May 1957 | Moor Hall, Cookham, Berkshire, SL6 9QH |
| BLAKEY, Julie Elizabeth RESIGNED | Secretary | 09 Mar 1995 | 01 Mar 1996 | | | 66 Hanwood Close, Woodley, Reading, Berkshire, RG5 3AB |
| COKE, John Charles RESIGNED | Secretary | 18 Jul 2003 | 16 Mar 2004 | | | Home Farm House, Lewes Road, Horsted Keynes, West Sussex, RH17 7DP |
| LENTON, Christopher Trevor RESIGNED | Secretary | 01 Mar 1996 | 14 Oct 1999 | | | 15 Bencombe Road, Marlow Bottom, Buckinghamshire, SL7 3NZ |
| LENTON, Christopher Trevor RESIGNED | Secretary | | 09 Mar 1995 | | | 15 Bencombe Road, Marlow Bottom, Buckinghamshire, SL7 3NZ |
| SEMPLE, Kirsty RESIGNED | Secretary | 29 Jan 2016 | 01 Aug 2016 | | | 18, The Cross, Wivenhoe, Colchester, CO7 9QN, England |
| WILSON, Geoffrey Gordon RESIGNED | Secretary | 14 Oct 1999 | 11 Jul 2003 | | | 25 Spinfield Park, Marlow, Buckinghamshire, SL7 2DD |
| ALLSOP, Richard Anthony RESIGNED | Director | 10 Jan 2007 | 15 Jan 2008 | England | September 1947 | 46 Knighton Church Road, Leicester, LE2 3JH |
| BRINE, Ann Margaret RESIGNED | Director | 12 Jan 2011 | 04 Dec 2015 | United Kingdom | April 1969 | Moor Hall, Cookham, Berkshire, SL6 9QH |
| COKE, John Charles RESIGNED | Director | 01 Apr 2004 | 25 Feb 2005 | | March 1958 | Rivers Farmhouse, Borde Hill Road, Balcombe, West Sussex, RH16 1XS |
| CRYNE, Christine RESIGNED | Director | 25 Feb 2005 | 17 Jul 2006 | England | March 1955 | 10 Sneyd Road, London, NW2 6AN |
| DENNIS, June, Dr RESIGNED | Director | 03 Dec 2021 | 25 Jan 2024 | England | June 1964 | Moor Hall, Cookham, Berkshire, SL6 9QH |
| FISK, Peter Robert RESIGNED | Director | 18 Jul 2003 | 26 Mar 2004 | United Kingdom | September 1967 | St Winifreds Road, Teddington, Middlesex, TW11 9JR |
| GODFREY, Anne Catherine RESIGNED | Director | 06 Aug 2012 | 04 Dec 2015 | England | September 1963 | Moor Hall, Cookham, Berkshire, SL6 9QH |
| HAMILTON, Kathryn Mary RESIGNED | Director | 10 Dec 2019 | 03 Dec 2021 | England | August 1963 | Moor Hall, Cookham, Berkshire, SL6 9QH |
| HARRIS, Teresa Mary RESIGNED | Director | 26 Mar 2004 | 25 Feb 2005 | United Kingdom | February 1956 | 91 Royal College St, London, NW1 0SE |
| HARVEY, Andrew Quested RESIGNED | Director | 17 Jan 2012 | 17 Jan 2012 | England | May 1962 | Moor Hall, Cookham, Berkshire, SL6 9QH |
| HARVEY, Andrew Quested RESIGNED | Director | 16 Apr 2010 | 27 Jan 2014 | England | May 1962 | Moor Hall, Cookham, Berkshire, SL6 9QH |
| HOLTON, Joanne RESIGNED | Director | 01 Apr 2004 | 25 Feb 2005 | | September 1971 | Clonburr Cottage, High Street, Cookham, Berkshire, SL6 9SF |
| HOPWOOD, Leigh RESIGNED | Director | 19 Oct 2016 | 09 Dec 2019 | England | August 1975 | Moor Hall, Cookham, Berkshire, SL6 9QH |
| LENTON, Christopher Trevor RESIGNED | Director | | 18 Jul 2003 | England | July 1950 | 15 Bencombe Road, Marlow Bottom, Buckinghamshire, SL7 3NZ |
| MASTERS, Christopher Paul RESIGNED | Director | 04 Dec 2015 | 19 Oct 2016 | England | June 1960 | Moor Hall, Cookham, Berkshire, SL6 9QH |
| MODRAY, Sonia Ann RESIGNED | Director | 21 Sep 2006 | 10 Jan 2007 | United Kingdom | April 1950 | Beechgrove, Chinnor Hill, Oxfordshire, OX39 4BQ |
| NEILSON, Matthew Homer RESIGNED | Director | 27 Jan 2014 | 04 Dec 2015 | Great Britain | September 1971 | Moor Hall, Cookham, Berkshire, SL6 9QH |
| SMITH, Brian David, Dr RESIGNED | Director | 25 Feb 2005 | 09 Nov 2006 | United Kingdom | August 1961 | 6 Whetstone Close, Welwyn, Hertfordshire, AL6 0QW |
| SMITH ELDRIDGE, Paul John RESIGNED | Director | 16 Apr 2010 | 01 Feb 2011 | United Kingdom | February 1972 | Moor Hall, Cookham, Berkshire, SL6 9QH |
| STANDING, Peter Richard RESIGNED | Director | 25 Feb 2005 | 16 Apr 2010 | United Kingdom | December 1950 | 4 Burnham Road, Hughenden Valley, Buckinghamshire, HP14 4NY |
| SUTTON, James Alexander RESIGNED | Director | 17 Jan 2012 | 06 Aug 2012 | United Kingdom | May 1977 | Moor Hall, Cookham, Berkshire, SL6 9QH |
| THOMAS, Michael James, Professor RESIGNED | Director | | 15 Dec 1998 | | July 1933 | Apartment Gi Canada Court, 81 Miller Street, Glasgow, GL9 7JD |
| VINTON, Douglas RESIGNED | Director | 15 Jan 2008 | 16 Apr 2010 | United Kingdom | January 1956 | 3d, Forrester Grove, Edinburgh, Scotland, EH12 9AL |
| WILKES, Roderick Edward RESIGNED | Director | 10 Jan 2007 | 23 Dec 2011 | United Kingdom | February 1945 | Moor Hall, Cookham, Berkshire, SL6 9QH |
| WILKES, Roderick Edward RESIGNED | Director | | 15 Dec 1998 | United Kingdom | February 1945 | Monmoor Farm, Eardington, Bridgnorth, Salop, WV16 5LA |
| WILSON, Geoffrey Gordon RESIGNED | Director | 21 Apr 1999 | 11 Jul 2003 | United Kingdom | February 1956 | 25 Spinfield Park, Marlow, Buckinghamshire, SL7 2DD |