| Alastair James Gordon-stewart | Director | 20 Sept 2010 | 16 Jun 2014 | British | 54 years |
| Andrew William Aitchison | Director | 1 Aug 2008 | 4 Sept 2009 | British | 70 years |
| Anthony Charles Parker | Director | 11 Dec 2006 | 25 Sept 2008 | British | 55 years |
| Christopher John Sparks | Director | 1 Dec 2003 | 16 Jul 2004 | British | 67 years |
| Christopher King | Director | 1 Jun 2009 | 2 Jul 2018 | British | 72 years |
| Daniel Harry Rate Browne | Director | 20 Sept 2010 | 31 Jan 2020 | British | 54 years |
| Daniel Stewart Wilson | Secretary | 31 May 2022 | 30 Sept 2025 | - | - |
| David Michael Chilton | Director | 1 Jul 1994 | 12 Aug 1998 | British | 87 years |
| Deborah Pamela Hamilton | Secretary | 29 Sept 2008 | 22 Sept 2014 | British | - |
| Denis Frederick Lomas | Director | 1 Dec 1991 | 19 Jan 2008 | British | 83 years |
| Denise Ivy Holdom | Director | 1 Aug 2008 | 20 Sept 2010 | British | 55 years |
| Gary Bosley Phillips | Director | 16 Oct 2020 | 15 Oct 2021 | British | 63 years |
| George James Webb | Director | 1 Dec 1991 | 26 Jun 1998 | British | 86 years |
| Gillian Atkins | Secretary | 25 Oct 2001 | 3 Mar 2008 | British | - |
| Ian John Mitchell | Director | 14 Feb 2020 | 31 Jan 2025 | British | 63 years |
| Ian Michael Lawson | Director | 1 Aug 2008 | 21 Jun 2013 | British | 69 years |
| Jacqueline May Day | Director | 4 Feb 2008 | 30 Sept 2008 | British | 68 years |
| John Bruce Anderson | Director | 20 Feb 2013 | 1 Jul 2019 | British | 63 years |
| John Ephraim Ray | Director | 3 Jan 2007 | 26 Dec 2007 | British | 79 years |
| John Michael Nowak | Director | 23 Jan 2002 | 30 Sept 2008 | British | 76 years |
| Jonathan Thomas Mccormack | Director | 1 Jul 2000 | 31 May 2006 | British | 67 years |
| Kenneth Michael Faille | Director | 1 Jul 1994 | 12 Aug 1998 | British | 81 years |
| Kevin Leslie Foote | Director | 15 Sept 1997 | 12 Aug 1998 | British | 70 years |
| Laurence Garner | Director | 26 Mar 2002 | 19 Jan 2007 | British | 79 years |
| Mark Craig Davies | Director | 11 Oct 2004 | 29 Dec 2006 | British | 60 years |
| Matthew Armitage | Secretary | 12 Dec 2014 | 16 Jul 2015 | - | - |
| Matthew Broomfield | Director | 1 Aug 2008 | 2 Sept 2009 | British | 62 years |
| Michael O'farrell | Director | 23 Aug 2005 | 6 Jun 2008 | British | 65 years |
| Neil Benjamin Waterhouse | Director | 3 Jan 2007 | 4 Jan 2008 | British | 63 years |
| Nicholas Charles Moore | Director | 18 Jan 2010 | 12 Feb 2020 | British | 58 years |
| Philip Higgins | Secretary | 9 Sept 2019 | 28 May 2021 | - | - |
| Raymond John Davies | Director | 1 Dec 1991 | 26 Jun 1995 | British | 89 years |
| Richard Payne | Director | 17 Aug 1993 | 31 May 1995 | British | 73 years |
| Richard William Jones | Director | 22 Jul 1992 | 26 Jun 1998 | British | 69 years |
| Richard William Jones | Secretary | 1 Dec 1991 | 26 Jun 1998 | British | - |
| Robert William Gregory | Director | 26 Jun 1998 | 25 Oct 2001 | British | 72 years |
| Robert William Gregory | Director | 18 Mar 2003 | 27 Apr 2005 | British | 72 years |
| Robert William Gregory | Secretary | 26 Jun 1998 | 25 Oct 2001 | British | - |
| Roger Paul Gibbs | Director | 15 Sept 1997 | 12 Aug 1998 | British | 72 years |
| Roger Peter Page | Director | 26 Jun 1998 | 2 Feb 2009 | British | 69 years |
| Ronald Brian King | Director | 1 Dec 1991 | 12 Dec 1991 | British | 92 years |
| Sarah Jayne Cooper | Director | 9 Jun 2014 | 16 Oct 2020 | British | 53 years |
| Stephen Andrew Howitt | Director | 7 Apr 2008 | 31 Oct 2009 | British | 75 years |
| Stephen William Carpenter | Director | 1 Jul 1994 | 17 Jul 1995 | British | 73 years |
| Steven James Whitehead | Director | 22 Jul 1992 | 26 May 2009 | British | 77 years |
| Susan Patricia Croft | Director | 26 Mar 2002 | 30 Sept 2008 | British | 59 years |
| Susan Patricia Croft | Secretary | 3 Mar 2008 | 30 Sept 2008 | British | - |
| Theresa Bernadette Cremin | Director | 1 Jul 2006 | 4 Feb 2008 | British | 68 years |
| Theresa Bernadette Cremin | Director | 20 Sept 2010 | 28 Feb 2011 | British | 68 years |
| Trevor David Thomas | Director | 23 May 2011 | 31 Mar 2023 | British | 60 years |