| AMOS, William, Dr ACTIVE | Director | | | United Kingdom | November 1958 | 21 Searle Street, Cambridge, Cambridgeshire, CB4 3DB |
| COOPER, Gillian ACTIVE | Director | 20 Dec 2000 | | United Kingdom | September 1968 | 21 Searle Street, Cambridge, Cambridgeshire, CB4 3DB |
| DANSIE, Timothy ACTIVE | Director | | | England | February 1957 | Stable 6, Stable Road, Colchester, Essex, CO2 7GL |
| EGLESTON, Hugo ACTIVE | Director | | | United Kingdom | May 1955 | Old Farm Yard, Lasham, Alton, Hampshire, GU34 5RY, England |
| FOSTER, Stephen Andrew ACTIVE | Director | 20 Dec 2000 | | United Kingdom | June 1970 | 51 Marston Road, Marston, Oxford, Oxfordshire, OX3 0EE |
| JENNINGS, Mark ACTIVE | Director | 20 Dec 2000 | | United Kingdom | September 1963 | The Old Lodge Warnham Court, Dorking Road, Warnham, RH12 3QG |
| LANGBEIN, Jochen ACTIVE | Director | | | United Kingdom | January 1959 | 2 Victoria Road, Bishops Waltham, Southampton, Hampshire, SO3 1DJ |
| MITCHELL, Alaistair ACTIVE | Director | | | United Kingdom | December 1954 | Cae Dwmlyn, Llansoy, Usk, Gwent, NP15 1DA |
| PEMBERTON, Josephine, Dr ACTIVE | Director | | | United Kingdom | July 1957 | 3 Grange Terrace, Edinburgh, Midlothian, EH9 2LD |
| PAPWORTH, Henry Simon RESIGNED | Secretary | | 30 Mar 2020 | | | Fairhouse Farm, Churchinford, Taunton, Somerset, TA3 7RW, United Kingdom |
| ACKROYD, William RESIGNED | Director | 20 Dec 2000 | 11 May 2002 | | October 1951 | 5 Diamond Cottages, Crossport Bolney, Haywards Heath, West Sussex, RH17 5QX |
| BLOWEY, Frank RESIGNED | Director | | 24 Oct 1996 | | November 1922 | Hill Farm, Ayot, St Lawrence, Hertfordshire, AL6 9BL |
| BROOKES, Neil RESIGNED | Director | | 17 May 1997 | | March 1966 | 15 Tilden Close, High Halden, Ashford, Kent, TN26 3LR |
| CORAZZA, David Dennis RESIGNED | Director | | 01 Jan 2026 | England | November 1952 | 64 Waterdell Lane, Waterdell Lane, St. Ippolyts, Hitchin, SG4 7QZ, England |
| DANSIE, Mary Anne RESIGNED | Director | | 16 Dec 2016 | United Kingdom | January 1960 | Stable 6, Stable Road, Colchester, Essex, CO2 7GL |
| DON, Andrew RESIGNED | Director | | 24 Apr 1993 | | December 1952 | 1 De Beauvoir Road, Reading, Berkshire, RG1 5NS |
| FREESTON, Helen RESIGNED | Director | 24 Apr 1993 | 11 May 2002 | | June 1965 | 49 High Street, Martin, Lincoln, Hampshire, LN4 3PYZ |
| GRAVES, Edward RESIGNED | Director | | 05 May 1999 | | September 1951 | Yanford Mill, Yanford, Cheltenham, Gloucestershire |
| LEAH, Roger RESIGNED | Director | | 25 Sep 2016 | United Kingdom | May 1965 | Campdells Cottage, Landermere Thorpe Le Soken, Clacton On Sea, Essex, CO16 0NN |
| PAPWORTH, Henry Simon RESIGNED | Director | | 30 Mar 2020 | England | March 1957 | Fairhouse Farm, Churchinford, Taunton, Somerset, TA3 7RW |
| PUTMAN, Roderick John RESIGNED | Director | | 17 Feb 1997 | | November 1950 | Ach Na Criche, Drimnin, Morvern, Argyll, PA34 5XZ |