| FENN, Brian Roy ACTIVE | Secretary | 28 May 2004 | | | | The Maple Building, 39/51 Highgate Road, London, NW5 1RT, England |
| LINTON, Vivienne Jennifer ACTIVE | Secretary | 28 Jun 2023 | | | | The Maple Building, 39/51 Highgate Road, London, NW5 1RT, England |
| EGERTON, Selina Natalie Linton ACTIVE | Director | 13 Jul 2011 | | England | April 1983 | The Maple Building, 39/51 Highgate Road, London, NW5 1RT, England |
| LINTON, Gary Mark ACTIVE | Director | 26 Apr 2010 | | England | June 1985 | The Maple Building, 39/51 Highgate Road, London, NW5 1RT, England |
| LINTON, Jack David ACTIVE | Director | | | United Kingdom | January 1955 | The Maple Building, 39/51 Highgate Road, London, NW5 1RT, England |
| LINTON, Vivienne Jennifer ACTIVE | Director | 28 Jun 2023 | | England | August 1952 | The Maple Building, 39/51 Highgate Road, London, NW5 1RT, England |
| HENDERSON, James Souter RESIGNED | Secretary | 12 Jul 1999 | 28 May 2004 | | | 63 Beech Avenue, Eastcote, Ruislip, Middlesex, HA4 8UG |
| HENDERSON, James Souter RESIGNED | Secretary | 21 Feb 1997 | 24 Jun 1999 | | | 63 Beech Avenue, Eastcote, Ruislip, Middlesex, HA4 8UG |
| LINTON, Jack David RESIGNED | Secretary | 25 Sep 1996 | 21 Feb 1997 | | | Villa Russo, Bishops Avenue, London, N2 0AJ |
| LINTON, Norman Martin RESIGNED | Secretary | | 17 Sep 1996 | | | 4 Langley Court, Raleigh Close, London, NW4 2SY |
| LINTON, Vivienne Jennifer RESIGNED | Secretary | 24 Jun 1999 | 12 Jul 1999 | | | 16a The Bishops Avenue, Hampstead, London, N2 0AJ |
| LINTON, Alexander Jonathan RESIGNED | Director | 18 Jul 2011 | 20 Mar 2023 | England | April 1986 | The Maple Building, 39/51 Highgate Road, London, NW5 1RT, England |
| LINTON, Dorothy Joy RESIGNED | Director | | 19 Jul 1997 | | February 1920 | 4 Langley Court, London, NW4 2SY |
| LINTON, Norman Martin RESIGNED | Director | | 17 Sep 1996 | | June 1917 | 4 Langley Court, Raleigh Close, London, NW4 2SY |
| LINTON, Norman James George RESIGNED | Director | | 20 Mar 2023 | Cayman Islands | November 1951 | Piccadilly Centre, 28 Elgin Avenue, Suite 201, Grand Cayman, Ky1-1103, Cayman Islands |
| LINTON, Vivienne Jennifer RESIGNED | Director | 08 Mar 2001 | 12 Dec 2016 | England | August 1952 | 8, Headfort Place, London, SW1X 7DH, England |
| SIMONS, John Harris RESIGNED | Director | | 28 Apr 1995 | | March 1928 | 24 Decoy Avenue, London, NW11 0ET |
| SKINNER, Karen Philippa Linton RESIGNED | Director | 26 Apr 2010 | 20 Mar 2023 | England | June 1980 | The Maple Building, 39/51 Highgate Road, London, NW5 1RT, England |