| SZELL, Sarah Kate ACTIVE | Secretary | 29 Apr 2015 | | | | 38a, Gayton Road, London, NW3 1UB, England |
| GOULDEN, Laura Frances ACTIVE | Director | 12 Jan 2022 | | England | November 1982 | 37b, Gayton Road, London, NW3 1UB, England |
| HOMA, Diana Jacqueline ACTIVE | Director | 09 May 2006 | | United Kingdom | November 1953 | 19 Gayton Crescent, London, NW3 1UA |
| MACCHI, Manuela ACTIVE | Director | 06 Aug 2009 | | England | October 1973 | 17, Gayton Crescent, London, NW3 1UA, United Kingdom |
| O'FLYNN, Paul Edward, Prof. ACTIVE | Director | 08 Jan 2021 | | United Kingdom | November 1958 | 23, Gayton Crescent, London, NW3 1UA, England |
| RATZER, Diana Joan ACTIVE | Director | 10 Jun 1993 | | United Kingdom | October 1940 | 37 Gayton Road, London, NW3 1UB |
| SZELL, Sarah Kate ACTIVE | Director | 01 Dec 2007 | | England | October 1967 | 38a Gayton Road, London, NW3 1UB |
| TRAEGER, Stephen Eric ACTIVE | Director | 30 Jun 2025 | | England | August 1966 | 36a, Gayton Road, London, NW3 1TY, England |
| WONG, Sui Chien ACTIVE | Director | 16 Feb 2021 | | England | October 1975 | 37a, Gayton Road, London, NW3 1UB, England |
| LEVINKIND, Julius RESIGNED | Secretary | | 19 Jun 2000 | | | Flat 7 Highview, 5 Holford Road, London, NW3 1AG |
| RATZER, John Peter Leo RESIGNED | Secretary | 19 Jun 2000 | 29 Apr 2015 | | | 37, Gayton Road, London, NW3 1UB |
| BRIDOT, Laurence RESIGNED | Director | 16 Feb 2021 | 10 Jul 2026 | England | October 1963 | 38, Gayton Road, London, NW3 1UB, England |
| COBBOLD HIELTE, Harriet RESIGNED | Director | 30 Sep 2015 | 22 Jan 2021 | United Kingdom | March 1980 | 37a, Gayton Road, London, NW3 1UB, United Kingdom |
| CONVERT, Louise Jane RESIGNED | Director | 06 Apr 2005 | 26 Jun 2015 | United Kingdom | December 1973 | 37a Gayton Road, London, NW3 1UB |
| COWAN, Rex Braham RESIGNED | Director | 10 Oct 2018 | 01 Feb 2021 | England | June 1927 | 38, Gayton Road, London, NW3 1UB, England |
| COWAN, Zelide Heather RESIGNED | Director | 19 Jun 1997 | 16 Apr 2018 | United Kingdom | February 1931 | 38 Gayton Road, London, NW3 1UB |
| DOLKER, Stephanie RESIGNED | Director | 18 Mar 2010 | 29 May 2026 | United Kingdom | April 1977 | 18, Gayton Crescent, London, NW3 1UA |
| FINE, Felicity RESIGNED | Director | 19 Jun 2000 | 26 Apr 2004 | | September 1958 | 36a Gayton Road, Hampstead, London, NW3 1TY |
| FITZMAURICE, Edward Martin RESIGNED | Director | 27 May 1998 | 02 Mar 2016 | United Kingdom | November 1962 | 22 Gayton Crescent, Hampstead, London, NW3 1UA |
| GOLDSTEIN, Sidney Eliot RESIGNED | Director | | 30 May 1991 | | December 1934 | 38 Gayton Road, Hampstead, London, NW3 1UB |
| HARRISON, Julian Pitman Hyde RESIGNED | Director | | 26 Feb 1993 | | August 1929 | 37 Gayton Road, Hampstead, London, NW3 1UB |
| HAYWOOD, Roger Adrian RESIGNED | Director | 04 Jun 2001 | 09 May 2006 | | January 1948 | 19 Gayton Crescent, London, NW3 1UA |
| HAYWOOD, Roger Adrian RESIGNED | Director | | 10 Jun 1993 | | January 1948 | 19 Gayton Crescent, London, NW3 1UA |
| HORDEN, Richard Manaton RESIGNED | Director | | 10 Oct 1997 | | December 1944 | 22 Gayton Crescent, Hampstead, London, NW3 1UA |
| IJAZ, Samia RESIGNED | Director | 26 Apr 2004 | 11 Aug 2006 | | August 1973 | 20 Gayton Crescent, London, NW3 1UA |
| JOEL, Victoria Lynne Roberts RESIGNED | Director | 30 May 1991 | 14 Mar 1997 | | July 1952 | 23 Gayton Crescent, London, NW3 1UA |
| LEVINKIND, Julius RESIGNED | Director | 10 Jun 1993 | 19 Jun 2000 | England | November 1928 | Flat 7 Highview, 5 Holford Road, London, NW3 1AG |
| MILLER, Jonathan RESIGNED | Director | 19 Jun 1997 | 19 Jun 2000 | | August 1951 | 38a Gayton Road, London, NW3 1UB |
| O'FLYNN, Paul Edward, Prof RESIGNED | Director | 25 Jun 2007 | 04 Mar 2016 | England | November 1958 | 23 Gayton Crescent, London, NW3 1UA |
| PARKER, Nancy Gillian RESIGNED | Director | 14 May 2003 | 29 Apr 2010 | | March 1945 | 13 East Road, Oundle, Peterborough, Northamptonshire, PE8 4BX |
| RATZER, John Peter Leo RESIGNED | Director | 10 Jun 1993 | 19 Jun 2000 | | May 1939 | 37, Gayton Road, London, NW3 1UB |
| STECKER, Jeremy Scott RESIGNED | Director | 27 May 1998 | 19 Jun 2000 | | June 1962 | 37a Gayton Road, Hampstead Village, London, NW3 1UB |
| SZELL, Redmond Patrick Dakeyne RESIGNED | Director | 26 Apr 2006 | 25 Nov 2007 | | October 1969 | 38a Gayton Road, London, NW3 1UB |
| SZELL, Sarah Kate RESIGNED | Director | 19 Jun 2000 | 29 Apr 2006 | England | October 1967 | 38a Gayton Road, London, NW3 1UB |
| TAUSZ, Dilys Kim Vivienne RESIGNED | Director | 26 Apr 2004 | 30 Jun 2025 | England | March 1951 | 36a Gayton Road, London, NW3 1TY |
| TUCKER, Elaine Joanne RESIGNED | Director | 07 May 2002 | 25 Jun 2007 | | May 1970 | 23 Gayton Crescent, London, NW3 1UA |
| WESTON, John Barry RESIGNED | Director | 04 Jun 2001 | 06 Apr 2005 | | May 1964 | 37a Gayton Road, Hampstead, London, NW3 1UB |
| WILDE HERSHMAN, Dylan RESIGNED | Director | 20 Jul 2016 | 20 May 2026 | United Kingdom | March 1978 | 20-22, Gayton Crescent, London, NW3 1UA, United Kingdom |
| WISTRICH, Enid Barbara RESIGNED | Director | 20 Jul 2016 | 20 May 2020 | United Kingdom | September 1928 | 37b, Gayton Road, London, NW3 1UB, United Kingdom |
| WISTRICH, Ernest RESIGNED | Director | | 07 May 2015 | United Kingdom | May 1923 | 37b Gayton Road, Hampstead, London, NW3 1UB |
| WRIGHT, Linus RESIGNED | Director | 19 Jun 2000 | 07 May 2002 | | January 1970 | 23 Gayton Crescent, Hampstead, London, NW3 1UA |