| Abigail Holladay | Director | 1 Jan 1999 | 16 Oct 2003 | British | 61 years |
| Caroline Janet Banszky | Director | 13 Feb 2002 | 31 Aug 2016 | British | 73 years |
| Christopher Charles Biddulph Duffett | Director | 5 May 1992 | 9 Apr 2002 | British | 83 years |
| Clive Laurence Charles Rakestrow | Director | 1 Jan 1999 | 27 Oct 2004 | British | 69 years |
| Darren Andrew Levene | Director | 10 Mar 2015 | 30 Nov 2020 | British | 52 years |
| David Frank Norris | Director | 17 Nov 1992 | 16 Oct 2003 | British | 79 years |
| Denyse Monique Anderson | Director | 17 Nov 1992 | 30 Apr 2015 | British | 73 years |
| Foster Ferrier Harvey Charlton | Director | 5 May 1992 | 25 Apr 1995 | British | 103 years |
| Graham Idris Lane | Director | 5 May 1992 | 20 Sept 1996 | British | 90 years |
| Howard Clive Rumbelow | Director | 5 May 1992 | 19 Oct 1993 | British | 93 years |
| Hugh Daniel Osborne | Director | 5 May 1992 | 31 Dec 1996 | British | 99 years |
| Ian Kenneth Bowden | Director | 11 Nov 2003 | 1 Nov 2019 | British | 63 years |
| John Alston Morrell | Director | 5 May 1992 | 31 Dec 1996 | British | 99 years |
| John Jeremy Mckinnell Potter | Director | 5 May 1992 | 30 Nov 1992 | British | 89 years |
| John Jeremy Mckinnell Potter | Secretary | 5 May 1992 | 1 May 1993 | British | - |
| John Kenneth Howell | Secretary | 1 May 1993 | 5 Sept 1997 | British | - |
| Julian Robert Mason-jebb | Director | 5 May 1992 | 31 Mar 2017 | British | 71 years |
| Kenneth Alexander Graham | Director | 5 May 1992 | 9 Oct 1992 | British | 76 years |
| Michael Charles Adams | Director | 31 Aug 2016 | 22 Oct 2017 | British | 63 years |
| Raymond Percival St George Cazalet | Director | 5 May 1992 | 19 Oct 1993 | British | 95 years |
| Richard David Rance | Director | 23 Apr 2003 | 28 Sept 2022 | British | 71 years |
| Richard Forbes Thomas | Director | 5 May 1992 | 14 May 2004 | British | 82 years |
| Richard Lawrence Bristow | Director | 1 May 1993 | 31 Dec 1996 | British | 97 years |
| Robert James Williams | Director | 19 Oct 1993 | 31 Dec 2004 | British | 78 years |