| HOPKINSON, Christopher Neil, Mr. ACTIVE | Director | 07 Jul 2015 | | England | February 1969 | Millennium House, 65 Walton Street, Aylesbury, HP21 7QG, United Kingdom |
| INGRAHAM, Kathryn Delaine ACTIVE | Director | 11 Sep 2025 | | United States | November 1968 | Millennium House, 65 Walton Street, Aylesbury, HP21 7QG, United Kingdom |
| O’CONNOR, Deborah A. ACTIVE | Director | 01 Aug 2022 | | United States | September 1962 | Acco Brands, Four Corporate Drive, Lake Zurich, 60047, United States |
| SPIJKERVET, Ard Jen ACTIVE | Director | 01 Jan 2026 | | Netherlands | December 1967 | Millennium House, 65 Walton Street, Aylesbury, HP21 7QG, United Kingdom |
| BUCKINGHAM, Norman James RESIGNED | Secretary | | 31 Aug 1998 | | | 19 Rugosa Road, West End, Woking, Surrey, GU24 9PA |
| GEDDIE, Richard Mark RESIGNED | Secretary | 01 Apr 2003 | 23 Sep 2019 | | | 15 Pine Grove, Bricket Wood, St. Albans, Hertfordshire, AL2 3ST |
| O REILLY, Patrick John RESIGNED | Secretary | 06 Sep 1999 | 01 Apr 2003 | | | 15 Delisle Road, Gallions Reach, Thamesmead, London, SE28 0JD |
| PRIOR, Katherine Alexandra RESIGNED | Secretary | 23 Sep 2019 | 17 Jan 2022 | | | Oxford House, Oxford Road, Aylesbury, Buckinghamshire, HP21 8SZ |
| WILSON, Kenneth Young RESIGNED | Secretary | 31 Aug 1998 | 06 Sep 1999 | | | 71 Fyne Drive, Leighton Buzzard, Bedfordshire, LU7 2YG |
| CHAPMAN, Douglas Kenneth RESIGNED | Director | | 31 Mar 1993 | | January 1928 | 910 East Illinois Road, Lake Forest, Illinois, FOREIGN, Usa |
| CHAPMAN, Paul Guy RESIGNED | Director | 01 Oct 2004 | 02 May 2006 | England | June 1965 | 51 Tempest Mead, North Weald, Epping, Essex, CM16 6DY |
| COLE, Brendan Patrick RESIGNED | Director | | 28 Feb 2005 | | August 1948 | 18 Seafield Grove, Clontarf, Dublin 3, Eire |
| COX, Michael Neill RESIGNED | Director | | 08 Apr 1994 | England | July 1951 | 44 Chiddingstone Street, Fulham, London, SW6 3TG |
| DAVIES, Emma Susan RESIGNED | Director | 30 Jan 2008 | 20 Apr 2011 | United Kingdom | December 1971 | Lawn Hill Cottage, Claydon, Oxfordshire, OX17 1ET |
| FENWICK, Neal Vernon RESIGNED | Director | 07 Jul 2005 | 01 Aug 2022 | | May 1961 | 301 S.Ridge Road, Lake Forest, Illinois, 60045, United States |
| FENWICK, Neal Vernon RESIGNED | Director | 05 Dec 1995 | 31 Jan 2000 | | May 1961 | 29 Meare Close, Tadworth, Surrey, KT20 5RZ |
| GUEST, Richard Hamilton RESIGNED | Director | 02 May 2006 | 13 Feb 2007 | England | January 1958 | 7 Townshend Road, Richmond, TW9 1XH |
| HOUSEHAM, Anthony Derwent RESIGNED | Director | | 31 Jan 1994 | | June 1932 | The Borrowers 29a The Avenue, Claygate, Esher, Surrey, KT10 0RX |
| LOFFLER, Stephen John RESIGNED | Director | | 09 Apr 1998 | England | February 1953 | 14 Grey Close, London, NW11 6QG |
| MOODIE, Gordon Murray RESIGNED | Director | 06 Sep 1999 | 03 Jan 2003 | | December 1953 | 1 Forest Lodge, Epsom Road, Ashtead, Surrey, KT21 1JX |
| MUNK, Peter RESIGNED | Director | 03 Apr 2006 | 28 Jul 2010 | United Kingdom | July 1963 | 58 Geffers Ride, Ascot, Berkshire, SL5 7JZ |
| PAGE, Andrew Stephen RESIGNED | Director | 20 Apr 2011 | 07 Jul 2015 | England | May 1957 | 29, Russell Avenue, Bedford, Bedfordshire, MK40 3TD, England |
| PAGE, Andrew Stephen RESIGNED | Director | 17 Dec 2002 | 30 Nov 2006 | England | May 1957 | 29 Russell Avenue, Bedford, Bedfordshire, MK40 3TD |
| PETTICAN, Charles William RESIGNED | Director | 29 May 2001 | 31 Mar 2005 | | March 1950 | 136 Nine Mile Ride, Finchampstead, Wokingham, Berkshire, RG40 4JA |
| SCHNEIDER, Pamela Rolnick RESIGNED | Director | 27 Sep 2016 | 11 Sep 2025 | United States | November 1959 | Millennium House, 65 Walton Street, Aylesbury, HP21 7QG, United Kingdom |
| TEMPEST, Simon Roy RESIGNED | Director | 28 Jul 2010 | 20 Oct 2011 | England | October 1962 | 37, Oldacres, Maidenhead, Berkshire, SL6 1XH, England |
| THOMAS, Walter Joe, Dr RESIGNED | Director | 14 Mar 2017 | 22 May 2020 | United Kingdom | April 1966 | Oxford House, Oxford Road, Aylesbury, Buckinghamshire, HP21 8SZ |
| TRUSSLER, Gary John RESIGNED | Director | | 31 Oct 2001 | United Kingdom | March 1943 | 5 Pilgrims Lakes Church Road, Harrietsham, Maidstone, Kent, ME17 1BY |
| WELLS, Simon Howard George RESIGNED | Director | 20 Oct 2011 | 14 Mar 2017 | England | May 1962 | 55, Waine Close, Mount Pleasant, Buckingham, MK18 1FF, England |
| WESLEY, Norman Harold RESIGNED | Director | | 07 Jul 2005 | | December 1949 | 110 Honeysuckle Road, Lake Forest, 60045 Illinois, FOREIGN, Usa |