| LEVEN, Steven ACTIVE | Secretary | 01 Jul 2021 | | | | 1, Hercules Way, Leavesden, Watford, WD25 7GS, United Kingdom |
| CROSSLEY, Adam Rhodes ACTIVE | Director | 30 Jun 2025 | | United Kingdom | May 1981 | 1, Hercules Way, Leavesden, Watford, WD25 7GS, United Kingdom |
| DOWDING, Katrina Mary ACTIVE | Director | 23 May 2017 | | England | March 1970 | 1, Hercules Way, Leavesden, Watford, WD25 7GS, United Kingdom |
| MARKS, Lee ACTIVE | Director | 16 Mar 2026 | | United Kingdom | May 1972 | 1, Hercules Way, Leavesden, Watford, WD25 7GS, United Kingdom |
| MCDONALD, Adam Michael ACTIVE | Director | 02 May 2023 | | United Kingdom | December 1983 | 1, Hercules Way, Leavesden, Watford, WD25 7GS, United Kingdom |
| MORTENSEN, Jo ACTIVE | Director | 01 Jan 2025 | | Norway | April 1973 | 1, Hercules Way, Leavesden, Watford, WD25 7GS, United Kingdom |
| MUCKIAN, Terry ACTIVE | Director | 01 Jan 2025 | | United Kingdom | July 1968 | 1, Hercules Way, Leavesden, Watford, WD25 7GS, United Kingdom |
| OLUDIPE, Meliha Duymaz ACTIVE | Director | 28 Sep 2022 | | United Kingdom | November 1978 | 1, Hercules Way, Leavesden, Watford, WD25 7GS, United Kingdom |
| WILLIAMS, Daniel Martin ACTIVE | Director | 28 Oct 2025 | | United Kingdom | December 1982 | 1, Hercules Way, Leavesden, Watford, WD25 7GS, United Kingdom |
| BOYLE, John Charles, Dr RESIGNED | Secretary | | 13 Apr 1993 | | | Flat 135, 1 Prescot Street, London, E1 8RL |
| GALLOWAY, Mark Lawson RESIGNED | Secretary | 01 Jul 2000 | 31 Dec 2020 | | | Maple Cross House, Denham Way Maple Cross, Rickmansworth, Hertfordshire, WD3 9SW |
| HALL, Simon James RESIGNED | Secretary | 01 Jan 2021 | 30 Jun 2021 | | | Maple Cross House, Denham Way Maple Cross, Rickmansworth, Hertfordshire, WD3 9SW |
| TANNER, Brian Edward RESIGNED | Secretary | 13 Apr 1993 | 30 Jun 2000 | | | 1 Thatchers Close, Horley, Surrey, RH6 9LE |
| ALLEN, Michael John RESIGNED | Director | | 31 Jul 1996 | | July 1936 | 23 Church Lane, Southwick, Sussex, BN42 4GB |
| ALMSKOG, Kjell RESIGNED | Director | 24 Aug 2000 | 02 Nov 2000 | | January 1941 | 7 Prospect Place, London, SW20 0JP |
| ANSDELL, John Reginald Wardhaugh RESIGNED | Director | | 31 May 1993 | | October 1946 | 17 Randolph Avenue, London, W9 1BH |
| ASHBURNER, Derek Stanley RESIGNED | Director | 17 Oct 1995 | 23 Jul 1999 | | December 1940 | The Cloon Rectory Hill, Amersham, Buckinghamshire, HB7 0BU |
| BAYLISS, Roger Francis RESIGNED | Director | 22 Oct 2008 | 01 Feb 2016 | United Kingdom | March 1957 | Maple Cross House, Denham Way Maple Cross, Rickmansworth, Hertfordshire, WD3 9SW |
| BEETON, Jeremy John, Dr RESIGNED | Director | 01 Oct 1993 | 16 May 1997 | United Kingdom | March 1953 | Moidart Mill Wynd, Staindrop, Darlington, County Durham, DL2 3JR |
| BENGTSSON, Jan Ake RESIGNED | Director | 02 Nov 2000 | 01 Apr 2001 | | May 1958 | Ebbetorp, Rolsberga, Eslov, S 24194, Sweden |
| CARRE, Philip Ivo RESIGNED | Director | 20 Aug 2004 | 20 Jul 2010 | England | April 1957 | Maple Cross House, Denham Way Maple Cross, Rickmansworth, Hertfordshire, WD3 9SW |
| CHAMBERS, Kenneth William RESIGNED | Director | | 04 Apr 1996 | | June 1944 | 60 St Peters Avenue, Caversham, Reading, Berkshire, RG4 7DH |
| CHANDLER, Paul RESIGNED | Director | 16 Feb 2010 | 07 Nov 2016 | United Kingdom | January 1964 | Maple Cross House, Denham Way Maple Cross, Rickmansworth, Hertfordshire, WD3 9SW |
| CHARLTON, John Michael RESIGNED | Director | 24 Aug 2000 | 02 Nov 2000 | England | September 1943 | Dunstone, 5 Broomfield Ride, Oxshott, Surrey, KT22 0LR |
| CLARKE, Keith Edward RESIGNED | Director | 06 Feb 1996 | 24 Aug 2000 | England | May 1952 | 14 Thorney Hedge Road, Chiswick, London, W4 5SD |
| COOTE, Peter Edward RESIGNED | Director | 01 Dec 2004 | 31 Mar 2010 | | August 1944 | Maple Cross House, Denham Way Maple Cross, Rickmansworth, Hertfordshire, WD3 9SW |
| CRAIG, Gregor Lawrence RESIGNED | Director | 27 Feb 2015 | 02 May 2023 | United Kingdom | May 1963 | 1, Hercules Way, Leavesden, Watford, WD25 7GS, United Kingdom |
| DRIVER, David Ernest RESIGNED | Director | | 30 Jun 1994 | | July 1933 | 4 Timberling Gardens, South Croydon, Surrey, CR2 0AW |
| ENGLISH, Andrew Michael RESIGNED | Director | 01 Jan 2025 | 12 Dec 2025 | England | December 1965 | 1, Hercules Way, Leavesden, Watford, WD25 7GS, United Kingdom |
| FASTH, Sofia Cecilia RESIGNED | Director | 07 Jan 2011 | 01 Jul 2013 | United Kingdom | February 1973 | Maple Cross House, Denham Way, Maple Cross, Rickmansworth, Herts, WD3 9SW, United Kingdom |
| FAULKNER, Thomas Peter RESIGNED | Director | 15 Jun 2015 | 02 Dec 2024 | United Kingdom | May 1974 | 1, Hercules Way, Leavesden, Watford, WD25 7GS, United Kingdom |
| FISON, David Gareth RESIGNED | Director | 06 Nov 2000 | 24 Jul 2008 | United Kingdom | March 1952 | 153, Herne Hill, London, SE24 9LR |
| FISON, David Gareth RESIGNED | Director | 30 Jun 1999 | 24 Aug 2000 | United Kingdom | March 1952 | 153, Herne Hill, London, SE24 9LR |
| FLETCHER, John Wilfred Sword RESIGNED | Director | | 31 Dec 1999 | | October 1940 | House B 36 Island Road, Deepwater Bay, Hong Kong Sar, Pr China |
| FRANCIS, Harvey James RESIGNED | Director | 20 Jul 2009 | 30 Jun 2025 | United Kingdom | March 1965 | 1, Hercules Way, Leavesden, Watford, WD25 7GS, United Kingdom |
| GALLOWAY, Mark Lawson RESIGNED | Director | 06 Nov 2000 | 17 Nov 2020 | England | October 1955 | Maple Cross House, Denham Way Maple Cross, Rickmansworth, Hertfordshire, WD3 9SW |
| GALLOWAY, Mark Lawson RESIGNED | Director | 30 Jun 1999 | 24 Aug 2000 | | October 1955 | 38 Bunbury Way, Epsom, Surrey, KT17 4JP |
| GANGOTRA, Culdip Kelly Kaur RESIGNED | Director | 27 Feb 2015 | 29 Jul 2022 | United Kingdom | February 1970 | Maple Cross House, Denham Way, Maple Cross, Rickmansworth, Hertfordshire, WD3 9SW, United Kingdom |
| GAWLER, David RESIGNED | Director | 01 Jun 1993 | 18 Apr 1996 | United Kingdom | June 1939 | 76 Park Road, Hampton Hill, Middlesex, TW12 1HP |
| GAY, Andrew RESIGNED | Director | 05 Apr 1993 | 30 Nov 1994 | United Kingdom | July 1944 | Bircham Dyson Bell, 50 Broadway, London, SW1H 0BL |
| GORMLY, Allan Graham RESIGNED | Director | 17 Nov 1992 | 15 Aug 1994 | | December 1937 | 56 North Park, Gerrards Cross, Buckinghamshire, SL9 8JR |
| GREVE, Jan Mathias RESIGNED | Director | 24 Aug 2000 | 02 Nov 2000 | | May 1951 | The Strawberry Tree, Cavendish Road St Georges Hill, Weybridge, Surrey, KT13 0JT, Norway |
| HEATHFIELD, Robert RESIGNED | Director | | 12 Apr 1996 | England | May 1950 | 1 Redwing Rise, Merrow, Guildford, Surrey, GU4 7DU |
| HOCKING, William John RESIGNED | Director | 22 Oct 2008 | 10 Jul 2015 | United Kingdom | November 1963 | Maple Cross House, Denham Way Maple Cross, Rickmansworth, Hertfordshire, WD3 9SW |
| JONES, Maureen Patricia RESIGNED | Director | 01 Dec 2004 | 16 Sep 2008 | United Kingdom | March 1958 | Randalls Farm, Stockend Edge, Stroud, Gloucestershire, GL6 6PL |
| KARLSSON, Anders Carl Ingvar RESIGNED | Director | 02 Nov 2000 | 01 Apr 2001 | Sweden | October 1950 | Kvarngatan 2, Lomma S-234 42, Sweden |
| KEEHAN, John Patrick RESIGNED | Director | 06 Nov 2000 | 20 Aug 2004 | | May 1955 | 60 Fitzjames Avenue, Croydon, Surrey, CR0 5DD |
| KEEHAN, John Patrick RESIGNED | Director | 22 Aug 1997 | 24 Aug 2000 | | May 1955 | 60 Fitzjames Avenue, Croydon, Surrey, CR0 5DD |
| MANZIE, Andrew Gordon, Sir RESIGNED | Director | | 30 Sep 1997 | | April 1930 | 28 Manor Links, Bishops Stortford, Hertfordshire, CM23 5RA |
| MYERS, Barry RESIGNED | Director | | 05 Feb 1996 | | November 1944 | Boundless Farm Park Lane, Brook, Godalming, Surrey, GU8 5LF |
| NAPIER, Michael Edwin RESIGNED | Director | 17 Oct 1995 | 30 Jun 1999 | | August 1938 | Arden Headley Hill Road, Headley, Bordon, Hampshire, GU35 8DS |
| NEESON, Martin George RESIGNED | Director | 07 Nov 2016 | 31 Aug 2023 | England | January 1968 | 1, Hercules Way, Leavesden, Watford, WD25 7GS, United Kingdom |
| OLDHAM, John Richard RESIGNED | Director | | 26 Dec 1992 | | November 1943 | Bivelham House, Mayfield, East Sussex, TN20 6RS |
| PARKER, Eric Wilson, Sir RESIGNED | Director | | 16 Nov 1992 | England | June 1933 | Crimbourne House, Crimbourne Lane Green Wisborough, Billingshurst, West Sussex, RH14 0HR |
| PAUL, Swati RESIGNED | Director | 06 Apr 2021 | 29 Nov 2024 | United Kingdom | December 1966 | 1, Hercules Way, Leavesden, Watford, WD25 7GS, United Kingdom |
| POLLARD, Charles Nicholas RESIGNED | Director | 01 Jan 2005 | 21 Sep 2007 | England | June 1958 | Xanadu, Church Road, Hargrave, Northamptonshire, NN9 6BQ |
| PUTNAM, Michael Colin RESIGNED | Director | 01 Dec 2004 | 08 May 2017 | England | August 1960 | Maple Cross House, Denham Way Maple Cross, Rickmansworth, Hertfordshire, WD3 9SW |
| RICH, Nigel Mervyn Sutherland RESIGNED | Director | 06 Feb 1996 | 18 Apr 1996 | United Kingdom | October 1945 | 65 Chelsea Square, London, SW3 6LE |
| RUTTER, Richard Charles RESIGNED | Director | 04 Apr 1996 | 22 Aug 1997 | | August 1946 | Cables Cottage Church Lane, Little Witley, Worcester, Worcestershire, WR6 6LP |
| TONSETH, Erik RESIGNED | Director | 18 Apr 1996 | 14 Oct 1998 | | August 1946 | Aldworth House Old Avenue, St George's Hill, Weybridge, Surrey, KT13 0PZ |
| TYDEMAN, David Rolfe RESIGNED | Director | 05 Feb 2007 | 16 Sep 2008 | United Kingdom | January 1955 | Burton Grange, Burton, Wiltshire, BA12 6BR |
| WALLACE, Robert Anthony RESIGNED | Director | 06 Nov 2000 | 31 Jan 2003 | England | July 1950 | 1 Castlereagh, Wynyard, Billingham, Cleveland, TS22 5QF |
| WALLACE, Robert Anthony RESIGNED | Director | 02 Mar 1998 | 24 Aug 2000 | England | July 1950 | 1 Castlereagh, Wynyard, Billingham, Cleveland, TS22 5QF |
| WILLIAMSON, Mats William RESIGNED | Director | 24 Jul 2008 | 01 Oct 2009 | | March 1958 | Maple Cross House, Denham Way Maple Cross, Rickmansworth, Hertfordshire, WD3 9SW |