| SEIGLER, Jacqueline Linsay ACTIVE | Secretary | 12 Jan 2005 | | | | 5 Parkhill Walk, London, NW3 2YU |
| CLARKE, James Andrew ACTIVE | Director | 19 Sep 2021 | | England | May 1976 | 4, Parkhill Walk, London, London, NW3 2YU, England |
| DALE, Jonathan Andrew ACTIVE | Director | 23 Aug 2023 | | England | April 1993 | 3, Parkhill Walk, London, NW3 2YU, England |
| KIM, James ACTIVE | Director | 15 Oct 2015 | | England | January 1981 | 8, Parkhill Walk, London, NW3 2YU, England |
| MEERE, Dolores Teresa ACTIVE | Director | 20 Apr 2019 | | England | June 1951 | 7, Parkhill Walk, London, NW3 2YU, England |
| SEIGLER, Robert Mark ACTIVE | Director | 10 Nov 2025 | | England | March 1962 | 4th Floor Charles House, 108-110 Finchley Road, London, NW3 5JJ, United Kingdom |
| SIBSON, Peter Michael ACTIVE | Director | 01 Sep 1999 | | United Kingdom | October 1942 | 1 Parkhill Walk, London, NW3 2YU |
| STUDER, Amale ACTIVE | Director | 17 May 2023 | | England | February 1945 | 6 Parkhill Walk, Parkhill Walk, London, NW3 2YU, England |
| SANDS, John Farquhar RESIGNED | Secretary | | 12 Jan 2005 | | | 4 Parkhill Walk, London, NW3 2YU |
| APPLETON, Natalie Jane RESIGNED | Director | 03 Apr 1998 | 23 Feb 2007 | | May 1973 | 8 Parkhill Walk, London, NW3 2YU |
| BARLOW, Amalia RESIGNED | Director | 16 Oct 2007 | 15 Aug 2008 | | February 1926 | 1 Parkhill Walk, London, NW3 2YU |
| BARLOW, Anna RESIGNED | Director | 17 Aug 2008 | 19 Jun 2009 | | May 1958 | 8, Parkhill Walk, London, NW3 2YU, United Kingdom |
| CHRISTOFI, Joanna RESIGNED | Director | 19 Oct 2009 | 10 Aug 2023 | Cyprus | April 1971 | 3, Parkhill Walk, London, NW3 2YU, England |
| CROWCROFT, Andrew RESIGNED | Director | | 12 Mar 2002 | | November 1923 | 7 Parkhill Walk, London, NW3 2YU |
| CROWCROFT, Kyla RESIGNED | Director | 20 Jun 2002 | 20 Apr 2019 | United Kingdom | February 1932 | 7 Parkhill Walk, London, NW3 2YU |
| DE SOUZA, Magnus Anthony Lucas RESIGNED | Director | | 31 Aug 1999 | | July 1953 | 1 Parkhill Walk, London, NW3 2YU |
| GHAI, Vinay Kumar RESIGNED | Director | 31 May 2001 | 15 Jan 2023 | England | September 1970 | 6 Parkhill Walk, Belsize Park, London, NW3 2YU |
| HODGES, Brendan RESIGNED | Director | 20 Jun 2009 | 30 Sep 2012 | Great Britain | August 1975 | 8, Parkhill Walk, London, NW3 2YU, United Kingdom |
| INGELAERE, Delphine Christelle RESIGNED | Director | 01 Dec 2012 | 15 Oct 2015 | England | March 1976 | 8, Parkhill Walk, London, NW3 2YU, England |
| JAMES, Kim RESIGNED | Director | 31 Oct 2016 | 01 Nov 2016 | United Kingdom | January 1981 | 8, Parkhill Walk, London, NW3 2YU, England |
| KREMER, Don RESIGNED | Director | | 31 Mar 1997 | | January 1937 | 3 Parkhill Walk, Hampstead, London, NW3 2YU |
| MACDONALD, John Calum RESIGNED | Director | | 04 Dec 1992 | | February 1947 | 5 Parkhill Walk, London, NW3 2YU |
| MIDGEN, Diana Barbara Clare RESIGNED | Director | | 16 Jun 1998 | | May 1943 | 6 Parkhill Walk, London, NW3 2YU |
| PETER, Charles Joseph RESIGNED | Director | | 28 Nov 1994 | | June 1946 | 2 Parkhill Walk, London, NW3 2YU |
| SAMSON, Daniel Simon RESIGNED | Director | 20 Dec 2013 | 19 Sep 2021 | England | February 1980 | 4, Parkhill Walk, London, NW3 2YU, England |
| SANDS, John Farquhar RESIGNED | Director | 31 Dec 2010 | 20 Dec 2013 | United Kingdom | June 1942 | 4, Parkhill Walk, London, NW3 2YU, United Kingdom |
| SANDS, John Farquhar RESIGNED | Director | | 12 Jan 2005 | United Kingdom | June 1942 | 4 Parkhill Walk, London, NW3 2YU |
| SCHACHTER, Ariel Henry RESIGNED | Director | 31 Dec 1998 | 31 May 2001 | | March 1939 | 6 Parkhill Walk, London, NW3 2YU |
| SEIGLER, Jacqueline Linsay RESIGNED | Director | 29 Sep 2023 | 10 Nov 2025 | England | December 1963 | 5, Parkhill Walk, London, NW3 2YU, England |
| SEIGLER, Robert Mark RESIGNED | Director | 27 Mar 1999 | 29 Sep 2023 | England | March 1962 | 5 Parkhill Walk, London, NW3 2YU |
| TAN, Grace RESIGNED | Director | 31 Dec 2010 | 21 Jan 2026 | Canada | April 1957 | 2, Parkhill Walk, London, NW3 2YU, United Kingdom |
| TEAGUE, Marguerita RESIGNED | Director | 04 Dec 1992 | 15 Mar 1999 | | February 1940 | 5 Parkhill Walk, London, NW3 2YU |
| TOYE, Diana Esther RESIGNED | Director | 23 Feb 2007 | 16 Oct 2007 | | May 1950 | 8 Parkhill Walk, London, NW3 2YU |
| TOYE, Francis RESIGNED | Director | 31 Mar 1997 | 01 May 2009 | | July 1955 | 3 Parkhill Walk, London, NW3 2YU |
| WILLINGHAM, Nancy Patricia RESIGNED | Director | | 03 Apr 1998 | | January 1933 | Lindrick Lodge Lindrick Road, Woodsetts, Worksop, Nottinghamshire, S81 8AY |