| SMITH, Mark Anthony ACTIVE | Secretary | 16 Sep 2011 | | | | Winnington Road,, Hampstead,, London, N2 0TU |
| HOGARTH, Robert ACTIVE | Director | 01 Nov 2020 | | England | June 1954 | Winnington Road,, Hampstead,, London, N2 0TU |
| HUTTON-MILLS, Alex Nii-Ojartee ACTIVE | Director | 19 Jan 2026 | | United Kingdom | November 1974 | Winnington Road,, Hampstead,, London, N2 0TU |
| O'KEEFE, Guy, Dr ACTIVE | Director | 01 Oct 2024 | | England | January 1972 | Winnington Road,, Hampstead,, London, N2 0TU |
| WATSON, Paul Jeffrey ACTIVE | Director | 19 Jan 2026 | | England | May 1971 | Winnington Road,, Hampstead,, London, N2 0TU |
| BLOWER, Robert Simon RESIGNED | Secretary | 01 Feb 2004 | 16 Sep 2011 | | | 27 Bittacy Park Avenue, Mill Hill, London, NW7 2HA |
| BROWN, Colin Robert RESIGNED | Secretary | 01 Jan 1996 | 31 Dec 1997 | | | 21 Steeple Close, Heybridge, Maldon, Essex, CM9 7YL |
| HARRIS, Alan Charles Mardinor RESIGNED | Secretary | 01 Apr 1999 | 31 Jan 2004 | | | 13 Potters Road, Barnet, Hertfordshire, EN5 5HS |
| YOUNG, Kenneth Freeman RESIGNED | Secretary | 01 Jan 1998 | 31 Mar 1999 | | | 25 Hill Rise, London, NW11 6LY |
| YOUNG, Kenneth Freeman RESIGNED | Secretary | | 31 Dec 1995 | | | 25 Hill Rise, London, NW11 6LY |
| BOULDERSTONE, Beryl RESIGNED | Director | 30 Aug 2013 | 14 Jun 2021 | England | July 1942 | Flat 1 Swift Court 22, The Grove, London, N3 1QL, England |
| CHARLES, Jeremy Douglas RESIGNED | Director | 27 Nov 2019 | 19 Jan 2026 | England | December 1955 | 29, Middleton Road, London, NW11 7NR, England |
| CONSTANTINIDI, George Xenophon RESIGNED | Director | | 31 Oct 1996 | England | June 1928 | Marsh Mills House Wargrave Road, Henley On Thames, Oxfordshire, RG9 3HY |
| HALL, Ivor Graham RESIGNED | Director | 09 Sep 2006 | 24 Nov 2017 | England | March 1930 | 29 Erskine Hill, London, NW11 6EY |
| LAUGHLIN, Herbert Desmond Blakeley RESIGNED | Director | | 11 Mar 1991 | | September 1916 | 47 Kingwell Road, Hadley Wood, Barnet, Hertfordshire, EN4 0HZ |
| MOUNTAIN, Francis Robert Edmund RESIGNED | Director | 01 Jan 1992 | 18 Oct 2014 | France | April 1944 | Pavillon De La Reine, Cote De La Croix Rouge, Equemauville, 14600, France |
| MURPHY, Richard Patrick RESIGNED | Director | 05 Jan 2002 | 07 Jul 2020 | England | December 1946 | 219, Hampstead Way, London, NW11 7YB |
| O'LEARY, Richard Andrew RESIGNED | Director | 24 Nov 2017 | 27 Nov 2020 | England | January 1967 | Winnington Road,, Hampstead,, London, N2 0TU |
| PARRY, Christopher Jackson RESIGNED | Director | 13 Jun 1992 | 27 Feb 2013 | England | July 1934 | 23 Asmuns Hill, London, NW11 6ES |
| PINGUET, Robert Sydney Paul RESIGNED | Director | | 01 Oct 1992 | | September 1922 | 12 Institute Road, Marlow, Buckinghamshire, SL7 1BN |
| RICHARDS, Denis George RESIGNED | Director | | 30 Sep 2001 | | September 1910 | 4 Sussex Gate, Sussex Gardens, London, N6 4LS |
| SMITH, Robert Nicholas Eyre RESIGNED | Director | 10 Nov 2014 | 01 Dec 2025 | England | September 1947 | 11, Primrose Hill Road, London, NW3 3AX, England |
| THORNLEY, Dennis Anthony RESIGNED | Director | | 09 Sep 2006 | | January 1921 | 115 Willifield Way, London, NW11 6YE |
| WOODBRIDGE, Rob RESIGNED | Director | 07 Jul 2020 | 30 Sep 2024 | England | December 1945 | Winnington Road,, Hampstead,, London, N2 0TU |