| AVERTY, Charmian ACTIVE | Secretary | 11 Jun 2015 | | | | 2 Marylebone Road, London, NW1 4DF |
| DANQUAH, Kenneth ACTIVE | Director | 01 Apr 2022 | | United Kingdom | November 1985 | 2 Marylebone Road, London, NW1 4DF |
| FAIRCLOUGH, James Edward ACTIVE | Director | 23 Jan 2026 | | United Kingdom | May 1976 | 2 Marylebone Road, London, NW1 4DF |
| GASKELL, Kevin Harry ACTIVE | Director | 01 Jan 2021 | | United Kingdom | November 1963 | 2, Marylebone Road, London, NW1 4DF, United Kingdom |
| HOULT, Ms Anabel ACTIVE | Director | 01 Oct 2018 | | United Kingdom | December 1969 | 46, Molyneux Street, London, W1H 5JD, United Kingdom |
| SCOTT, Christina Jane ACTIVE | Director | 11 Sep 2024 | | United Kingdom | September 1970 | 2 Marylebone Road, London, NW1 4DF |
| SCOTT, Emma Jane ACTIVE | Director | 11 Sep 2024 | | United Kingdom | May 1968 | 2 Marylebone Road, London, NW1 4DF |
| VAZ, Nigel Gregory ACTIVE | Director | 02 Feb 2026 | | United Kingdom | April 1978 | 2 Marylebone Road, London, NW1 4DF |
| READING, Andrew John RESIGNED | Secretary | | 11 Jun 2015 | | | 71 Overstone Road, Harpenden, Hertfordshire, AL5 5PN |
| ARNEY, Claudia Isobel RESIGNED | Director | 01 Mar 2011 | 28 Feb 2015 | England | January 1971 | 2 Marylebone Road, London, NW1 4DF |
| BAKER, Susan Lynn RESIGNED | Director | 21 Jun 1994 | 31 Jan 2002 | | August 1958 | 16 Townsend Road, Harpenden, Hertfordshire, AL5 4BG |
| BARWISE, Thomas Patrick RESIGNED | Director | 02 Feb 2010 | 18 Nov 2015 | England | June 1946 | 2 Marylebone Road, London, NW1 4DF |
| BATESON, Anna RESIGNED | Director | 01 Feb 2021 | 21 Sep 2023 | England | April 1972 | 2, Marylebone Road, London, NW1 4DF, United Kingdom |
| BEISHON, Ronald John RESIGNED | Director | | 31 Dec 1994 | | November 1930 | 421 Ditchling Road, Brighton, East Sussex, BN1 6XB |
| BOGLER, Daniel RESIGNED | Director | 17 Oct 2007 | 12 Mar 2010 | United Kingdom | May 1965 | 2 Marylebone Road, London, NW1 4DF |
| BURTON, Anthony Winston RESIGNED | Director | 26 Jan 1993 | 25 Jan 1994 | Scotland | October 1940 | 9 Marchmont Terrace, Glasgow, G12 9LS |
| CADRANEL, Jacques RESIGNED | Director | 01 Oct 2010 | 31 Dec 2018 | England | August 1964 | 2 Marylebone Road, London, NW1 4DF |
| CAIN, James Corrin, Dr RESIGNED | Director | | 19 Mar 1997 | | April 1923 | 33 Farm Drive, Shirley, Croydon, Surrey, CR0 8HX |
| CAMERON, Neil RESIGNED | Director | 01 Sep 2007 | 31 Aug 2013 | England | August 1955 | 2 Marylebone Road, London, NW1 4DF |
| CLASPER, Michael RESIGNED | Director | 01 Jul 2008 | 31 May 2017 | United Kingdom | April 1953 | 130 Wilton Road, London, SW1V 1LQ |
| CONNOR, Terence Michael RESIGNED | Director | 01 Jul 2000 | 01 Jul 2007 | United Kingdom | October 1955 | Bishops Folly, Much Hadham, Hertfordshire, SG10 6HW |
| DAVIS, Deborah Lee RESIGNED | Director | 01 Jan 2015 | 31 Dec 2020 | United Kingdom | February 1963 | 2 Marylebone Road, London, NW1 4DF |
| DUNCAN, Neville Blair RESIGNED | Director | 26 Jan 1993 | 01 Feb 2000 | England | August 1946 | 56 Dore Road, Sheffield, South Yorkshire, S17 3NB |
| ENTWISTLE, Paul Norman Joseph RESIGNED | Director | | 16 Jul 1993 | | August 1951 | 12 Grove Road, Beaconsfield, Buckinghamshire, HP9 1UP |
| EVANS, Matthew, Lord RESIGNED | Director | 01 Jan 1998 | 06 Jun 2000 | | August 1941 | Lower Coscombe Manor, Temple Guiting, Cheltenham, Gloucestershire, GL54 5SA |
| GARDNER, Christopher Julyan RESIGNED | Director | 24 Nov 2004 | 28 Feb 2017 | United Kingdom | April 1966 | 2 Marylebone Road, London, NW1 4DF |
| GIBBONS, Judith Mary RESIGNED | Director | 05 Apr 2017 | 06 Oct 2022 | United Kingdom | January 1957 | 2 Marylebone Road, London, NW1 4DF |
| GINMAN, Margaret Lynda RESIGNED | Director | 29 Jan 2002 | 01 Aug 2006 | England | June 1954 | Hendal House Hendal Hill, Groombridge, Tunbridge Wells, Kent, TN3 9NT |
| GOODALL, Christopher Frank William RESIGNED | Director | 23 Nov 1999 | 01 Apr 2003 | | December 1955 | 6 Manor Farm, Culham, Abingdon, Oxfordshire, OX14 4NP |
| GOODALL, Christopher Frank William RESIGNED | Director | 01 Jan 1999 | 07 Sep 1999 | | December 1955 | 6 Manor Farm, Culham, Abingdon, Oxfordshire, OX14 4NP |
| HARRIS, Julie Louise RESIGNED | Director | 17 Sep 2015 | 30 Sep 2024 | United Kingdom | September 1966 | 2 Marylebone Road, London, NW1 4DF |
| HEASMAN, Tanya Anne RESIGNED | Director | 23 Sep 2008 | 01 Feb 2013 | England | March 1965 | 2 Marylebone Road, London, NW1 4DF |
| HOW, Alan RESIGNED | Director | 24 Nov 1998 | 04 Sep 2001 | England | July 1957 | 3 Lynsted Close, Bromley, BR1 3UE |
| HUDSON, Ian Michael RESIGNED | Director | 01 Nov 2015 | 30 Jun 2025 | England | May 1963 | 2 Marylebone Road, London, NW1 4DF |
| HURST, Geoff RESIGNED | Director | 20 Mar 2001 | 02 Apr 2004 | England | May 1957 | 1 Highwood Cottages, Grubwood Lane, Cookham, Maidenhead, SL6 9UE |
| IREMONGER, Amanda Jane RESIGNED | Director | 01 Aug 2004 | 31 Dec 2005 | Uk | May 1959 | 6 Berkeley Road, London, SW13 9LZ |
| KIMBELL, Harriet RESIGNED | Director | 25 Jan 1994 | 23 Jan 1996 | England | September 1952 | 1 Borrows Cross House, Gomshall, Guildford, Surrey, GU5 9QF |
| KIMBELL, Harriet RESIGNED | Director | | 26 Jan 1993 | England | September 1952 | 1 Borrows Cross House, Gomshall, Guildford, Surrey, GU5 9QF |
| LAVELY, Kim RESIGNED | Director | | 01 Nov 2004 | | August 1951 | Flat 2, 15 Lawn Road, London, NW3 2XR |
| LEGGATE, Susan Rosemary RESIGNED | Director | 25 Jan 1994 | 01 May 1995 | United Kingdom | July 1946 | 32 Upper Park, Loughton, Essex, IG10 4EQ |
| MACDONALD, Natalie-Jane Anne, Dr RESIGNED | Director | 31 Jan 2007 | 02 Feb 2010 | England | June 1962 | 2 Marylebone Road, London, NW1 4DF |
| MCKECHNIE, Sheila RESIGNED | Director | 01 Jan 1995 | 02 Jan 2004 | | May 1948 | 93 Hertford Road, East Finchley, London, N2 9BX |
| MILLS, Leif Anthony RESIGNED | Director | 01 Feb 2000 | 31 Jan 2002 | | March 1936 | 31 Station Road, West Byfleet, Surrey, KT14 6DR |
| MOORE, Jonathon Huw RESIGNED | Director | 01 Feb 2020 | 24 Sep 2025 | United Kingdom | August 1974 | 2, Marylebone Road, London, NW1 4DF, United Kingdom |
| MOORE, Michael Rodney Newton RESIGNED | Director | 20 Jul 1993 | 17 Jun 2008 | | March 1936 | 32 Lower Belgrave Street, London, SW1W 0LN |
| MULLINS, Andrew Oliver RESIGNED | Director | 01 Mar 2011 | 29 Feb 2016 | England | March 1964 | 2 Marylebone Road, London, NW1 4DF |
| PARKER, Helen Mary RESIGNED | Director | 01 Oct 2010 | 01 Nov 2012 | England | May 1965 | 2 Marylebone Road, London, NW1 4DF |
| PICKARD, Robert Stewart, Professor RESIGNED | Director | 21 Mar 2006 | 02 Feb 2010 | United Kingdom | March 1947 | 2 Marylebone Road, London, NW1 4DF |
| RAMPERSAUD, Cindy Purnamattie RESIGNED | Director | 06 Mar 2024 | 29 Nov 2025 | England | December 1966 | 2 Marylebone Road, London, NW1 4DF |
| RASHBASS, Andrew RESIGNED | Director | 24 Sep 2003 | 23 Sep 2004 | United Kingdom | July 1965 | 17 Wykeham Road, Hendon, London, NW4 2TB |
| ROBERTS, David George RESIGNED | Director | | 27 Oct 2000 | United Kingdom | April 1950 | 17 Orpington Road, London, N21 3PD |
| SETH, Andrew RESIGNED | Director | 23 Jan 1996 | 18 Jul 1997 | | May 1937 | 55 Blackheath Park, Blackheath, London, SE3 9SQ |
| SHAW, William Cameron RESIGNED | Director | 01 Jan 1998 | 03 Nov 1998 | | January 1928 | 58 Newlands Lane, Parklands, Chichester, West Sussex, PO19 3AS |
| SYKES, Richard Mark RESIGNED | Director | 07 May 2002 | 06 Feb 2006 | United Kingdom | August 1964 | 87 Magdalen Road, London, SW18 3NF |
| THOMPSON, Jonathan Nicholas RESIGNED | Director | 01 Nov 2017 | 31 Dec 2020 | England | June 1972 | 2, Marylebone Road, London, NW1 4DF, United Kingdom |
| THOMPSON, Jonathan Nicholas RESIGNED | Director | 19 Jul 2006 | 25 Aug 2010 | United Kingdom | June 1972 | 2 Marylebone Road, London, NW1 4DF |
| VICARY SMITH, Peter David RESIGNED | Director | 26 Aug 2004 | 30 Sep 2018 | United Kingdom | May 1962 | 2 Marylebone Road, London, NW1 4DF |
| WALL, Kevin Charles RESIGNED | Director | 01 Mar 2010 | 30 Sep 2017 | United Kingdom | December 1958 | 2 Marylebone Road, London, NW1 4DF |
| WALLER, Gary Peter Anthony RESIGNED | Director | 27 Sep 2006 | 01 Feb 2011 | United Kingdom | June 1945 | 2 Marylebone Road, London, NW1 4DF |
| WALLER, Gary Peter Anthony RESIGNED | Director | 29 Jan 2002 | 01 Aug 2004 | | June 1945 | 12 Plane Tree House, Duchess Of Bedfords Walks, London, W8 7QT |
| WARD, Tony RESIGNED | Director | 01 Jul 2012 | 12 Feb 2020 | England | February 1950 | 2 Marylebone Road, London, NW1 4DF |
| WATSON, John Robert RESIGNED | Director | 01 Jul 2000 | 20 May 2005 | United Kingdom | June 1949 | Horsebridge House Fittleworth Road, Wisborough Green, Billingshurst, West Sussex, RH14 0HD |
| WEBSTER, Martin Richard RESIGNED | Director | 20 Mar 2001 | 04 May 2010 | England | October 1954 | 2 Marylebone Road, London, NW1 4DF |
| WHITEHEAD, Phillip RESIGNED | Director | | 06 May 1994 | | May 1937 | 64 Patshull Road, London, NW5 2LD |
| YATES, Brian Douglas RESIGNED | Director | | 30 Jan 2007 | England | May 1944 | Park House 19 Park Avenue South, Harpenden, Hertfordshire, AL5 2DZ |
| ZEALLEY, Christopher Bennett RESIGNED | Director | | 26 Jan 1993 | United Kingdom | May 1931 | Sneydhurst, Broadhempston, Totnes, Devon, TQ9 6AJ |
| ZEALLEY, John Kenelm RESIGNED | Director | 01 Feb 2011 | 31 Dec 2011 | United Kingdom | March 1962 | 2 Marylebone Road, London, NW1 4DF |