| Alan David Turner | Director | 13 Jun 1991 | 30 Apr 1993 | British | 81 years |
| Alex Constantinos Naftis | Secretary | 22 Oct 1999 | 27 Sept 2023 | British | - |
| Allan Charles Caster | Director | 13 Jun 1991 | 29 Feb 1996 | British | 88 years |
| Andrea Moira Penman | Director | 10 Dec 2018 | 30 Sept 2022 | British | 64 years |
| Andrew John Hay | Director | 31 Jan 2006 | 1 Jan 2012 | British | 63 years |
| Barry John Cockerell | Director | 1 Jan 1994 | 22 Oct 1999 | British | 81 years |
| Bethan Ruth Stokes | Director | 13 Dec 2007 | 6 Dec 2010 | British | 50 years |
| Catherine Margaret Lambert | Director | 21 Oct 2004 | 17 May 2006 | British | 65 years |
| Clive David Stringer | Director | 17 Nov 1998 | 21 Dec 2001 | British | 71 years |
| David Fogarty | Director | 19 Mar 2020 | 8 Dec 2021 | Australian | 56 years |
| David Frederick Wheeler | Director | 21 Dec 2001 | 23 Jul 2003 | British | 80 years |
| David Patrick King | Director | 1 May 2013 | 31 Dec 2015 | Irish | 68 years |
| David Smith | Director | 1 Mar 1996 | 23 Jul 2003 | British | 77 years |
| Debbie Jane Walters | Director | 17 Nov 1998 | 23 Jul 2003 | British | 56 years |
| Dorrie Nelson | Director | 13 Jun 1991 | 30 Apr 1997 | British | 70 years |
| Dorrie Nelson | Secretary | 13 Jun 1991 | 1 Mar 1996 | British | - |
| Edward Frederick Holt | Director | 21 Dec 2001 | 23 Jul 2003 | British | 68 years |
| Emma Louise Buckland | Director | 31 Oct 2018 | 19 Mar 2020 | British | 45 years |
| John Charles Lewsley | Director | 1 Dec 2014 | 31 Dec 2015 | British | 49 years |
| John Macleod Lea | Director | 16 Sept 2004 | 1 Dec 2014 | British | 68 years |
| John Walter Tinley | Director | 13 Jun 1991 | 1 Jan 1993 | British | 64 years |
| Jonathan Vezey Strong | Director | 1 Dec 1999 | 14 Dec 2001 | British | 76 years |
| Martin Sean Lewis | Director | 31 Dec 2015 | 7 Dec 2017 | British | 62 years |
| Matthew Burnham | Director | 12 Oct 2011 | 1 May 2013 | British | 62 years |
| Michael Charles Loosemore | Director | 21 Dec 2001 | 30 Jun 2004 | British | 75 years |
| Michael John Prentice | Director | 13 Jun 1991 | 31 Oct 1998 | British | 73 years |
| Michael William Osbourne Jones | Director | 31 Dec 2015 | 28 Jul 2017 | Australian | 52 years |
| Nicola Grendon Simpson | Director | 15 Oct 1997 | 28 Apr 2000 | British | 72 years |
| Patrick Edwards Grant | Director | 11 Nov 2005 | 31 Jan 2006 | British | 74 years |
| Paul Dickenson | Director | 1 Dec 2014 | 31 Oct 2017 | British | 59 years |
| Peter Charles Barton | Director | 20 Oct 2009 | 14 Oct 2011 | British | 65 years |
| Peter James Matthews | Director | 23 Jul 2003 | 11 Nov 2005 | British | 69 years |
| Richard Jon Philip Williams | Director | 12 Oct 2011 | 31 Oct 2018 | British | 61 years |
| Robert Ian Kenneth Bucknell | Director | 15 Jan 2002 | 16 Aug 2002 | British | 76 years |
| Rupert Vivian Stanbury | Director | 1 Mar 1996 | 4 Nov 1999 | British | 73 years |
| Rupert Vivian Stanbury | Secretary | 21 Aug 1996 | 22 Oct 1999 | British | - |
| Ruth Elizabeth Seddon | Director | 21 Oct 2004 | 13 Dec 2007 | British | 59 years |
| Sarah Francis Edwards | Secretary | 1 Mar 1996 | 21 Aug 1996 | British | - |
| Simon Richard Elmer | Director | 22 Oct 1999 | 5 Feb 2001 | British | 61 years |
| Stephen Isted | Director | 30 Jun 2004 | 17 Mar 2009 | British | 63 years |
| Stephen Rodney Tutton | Director | 13 Jun 1991 | 31 Dec 1993 | British | 72 years |
| Vanessa Ransley | Director | 1 Jan 1993 | 31 Aug 1995 | British | 60 years |