| Alison Marie Dillon | Director | 2 Jun 1993 | 4 Sept 1998 | British | 64 years |
| Alison Marie Horler | Secretary | 16 Feb 1993 | 2 Jun 1993 | British | - |
| Andrew Robert John Bonfield | Director | 7 Sept 1998 | 27 Dec 2000 | British | 63 years |
| Caroline Daphne Coomber | Secretary | 18 May 1998 | 20 Dec 1999 | British | - |
| Christopher Hugh Dakers | Director | 15 Jul 1999 | 5 Mar 2001 | British | 83 years |
| Clare Alexandra Mcclintock | Director | 10 Mar 1995 | 26 Aug 1997 | British | 62 years |
| Clare Alexandra Mcclintock | Secretary | 2 Jun 1993 | 15 Oct 1993 | British | - |
| David John Stevens | Director | 16 Feb 1993 | 10 Mar 1995 | British | 75 years |
| Deborah Anne Adams | Secretary | 15 Oct 1993 | 17 Jan 1996 | British | - |
| Iain James Mackay | Director | 1 May 2019 | 1 May 2023 | British | 64 years |
| Ian Main Ferguson Balfour | Director | 16 Feb 1993 | 1 Jan 1994 | British | 92 years |
| John Sadler | Secretary | 9 Jun 2020 | 29 Jul 2022 | - | - |
| Julian Spenser Heslop | Director | 9 Sept 2009 | 31 Mar 2011 | British | 71 years |
| Julie Belita Brown | Director | 1 May 2023 | 19 Jul 2025 | British | 63 years |
| Karina Jane Bryant | Secretary | 20 Dec 1999 | 18 Jan 2002 | British | - |
| Mark Alexander Rowland Venables | Director | 26 Aug 1997 | 7 Sept 1998 | British | 71 years |
| Paul Frederick Blackburn | Director | 15 Jul 1999 | 5 Mar 2001 | British | 71 years |
| Peter Jackson | Director | 16 Feb 1993 | 21 Apr 1994 | British | 82 years |
| Rupert Bondy | Director | 7 Sept 1998 | 5 Mar 2001 | British | 64 years |
| Simon Nicholas Wilbraham | Director | 18 May 1998 | 7 Sept 1998 | British | 56 years |
| Simon Nicholas Wilbraham | Secretary | 4 Sept 1998 | 2 Mar 2001 | British | - |
| Simon Paul Dingemans | Director | 1 Apr 2011 | 1 May 2019 | British | 62 years |
| Simone Vicentini | Director | 20 Feb 2015 | 14 Dec 2018 | Italian | 56 years |
| Stephen Thomas Crompton | Director | 7 Sept 1998 | 5 Mar 2001 | British | 79 years |
| Valerie Banks | Secretary | 17 Jan 1996 | 18 May 1998 | British | - |