| Amanda Jane Emilia Massie | Director | 18 Oct 2004 | 8 Mar 2013 | British | 56 years |
| Amanda Jane Emilia Massie | Secretary | 18 Oct 2004 | 8 Mar 2013 | British | - |
| Andrew Christopher John Noble | Director | 12 Oct 2016 | 5 Mar 2017 | British | 65 years |
| Bethan Melges | Secretary | 2 Dec 2015 | 12 Oct 2016 | - | - |
| Carl Sjogren | Secretary | 30 Jul 2010 | 27 Apr 2012 | - | - |
| Catherine Engmann | Secretary | 21 Apr 2006 | 22 May 2009 | British | - |
| Christine Ann Shaw | Secretary | 17 Jun 2011 | 2 May 2012 | - | - |
| Christopher Pearce | Director | 6 Dec 1991 | 1 Mar 1993 | British | 79 years |
| Colin Robert Coulson | Director | 6 Dec 1991 | 30 Nov 1999 | British | 92 years |
| Craig Steven Apsey | Director | 30 Jul 2013 | 31 May 2016 | British | 65 years |
| David Beddoe Thompson | Director | 6 Dec 1991 | 31 Dec 2003 | British | 83 years |
| David Frank Tilston | Director | 13 Sept 2010 | 17 Jun 2011 | British | 69 years |
| David John Binns | Director | 1 Aug 1997 | 10 May 2004 | British | 71 years |
| David Reece Booty | Director | 6 Dec 1991 | 31 Aug 2002 | British | 84 years |
| David Richard Virden | Director | 30 Jul 2013 | 5 Apr 2016 | British | 64 years |
| David Russell Allan | Director | 6 Dec 1991 | 30 Apr 1995 | British | 80 years |
| David William Alexander Hills | Director | 23 Jan 2007 | 1 Oct 2008 | British | 68 years |
| Gail Lesley Shadlock | Director | 10 May 2004 | 13 May 2007 | British | 64 years |
| Gareth William Nutt | Director | 1 Sept 2005 | 8 Jan 2010 | British | 60 years |
| Grant Rumbles | Director | 21 Nov 2011 | 8 Jun 2015 | British | 68 years |
| Gregory Kane | Director | 12 Oct 2016 | 22 Jul 2021 | British | 50 years |
| Helen Kathryn Marsh | Secretary | 18 Jul 2014 | 12 Nov 2015 | - | - |
| Ian Manser | Director | 1 Feb 1999 | 10 May 2004 | British | 69 years |
| Ian Manser | Director | 1 Aug 2005 | 30 Apr 2006 | British | 69 years |
| James Albert Harding | Director | 6 Dec 1991 | 18 Sept 2003 | British | 83 years |
| James Albert Harding | Secretary | 6 Dec 1991 | 1 Oct 1996 | British | - |
| James Thornton Measures | Director | 6 Dec 1991 | 20 Aug 2010 | British | 75 years |
| Jeffrey Michael Morris | Director | 1 Feb 1997 | 31 Dec 2004 | British | 73 years |
| Jeremy Francis Wray | Director | 10 May 2004 | 16 Feb 2018 | British | 73 years |
| Jeremy Mark Williams | Director | 8 Apr 2016 | 12 Oct 2016 | British | 57 years |
| John Andrew Nisbet | Director | 1 Jul 1997 | 19 Mar 1999 | British | 82 years |
| John Henderson Murray | Director | 6 Dec 1991 | 16 Feb 1996 | British | 83 years |
| John Richard Knight | Director | 6 Dec 1991 | 1 Oct 1993 | British | 74 years |
| John Richard Knight | Director | 1 Sept 1994 | 31 Jul 2000 | British | 74 years |
| John Stuart Malpass | Director | 16 May 1997 | 15 Jan 1998 | British | 84 years |
| Karen Anne Sewell | Secretary | 12 Oct 2016 | 6 Mar 2025 | - | - |
| Keith Charles Jackson | Director | 1 Aug 1998 | 12 Oct 2016 | British | 73 years |
| Kelly Lee | Secretary | 26 May 2009 | 30 Jul 2010 | British | - |
| Kevin Andrew Young | Director | 5 Oct 1998 | 31 Aug 2010 | British | 67 years |
| Malcolm James Taylor | Director | 1 Aug 1998 | 30 Nov 2001 | British | 73 years |
| Mark Kenneth Campbell | Director | 22 Apr 2008 | 31 May 2009 | British | 64 years |
| Mark William Naysmith | Director | 12 Oct 2016 | 16 Dec 2024 | British | 60 years |
| Maurice Henry Golder | Director | 6 Dec 1991 | 31 Dec 1992 | British | 93 years |
| Michael Barrington Lohn | Director | 6 Dec 1991 | 31 Dec 2000 | British | 86 years |
| Michael John Stokes | Director | 6 Dec 1991 | 31 Dec 1992 | British | 81 years |
| Michael John Whitwell | Director | 6 Dec 1991 | 7 Jun 1996 | British | 74 years |
| Michael Patrick Rogerson | Director | 5 Mar 2017 | 27 Aug 2021 | British | 60 years |
| Nicky Cobden | Secretary | 2 May 2012 | 29 Aug 2013 | - | - |
| Nigel John Quick | Director | 6 Dec 1991 | 30 Apr 1995 | British | 83 years |
| Paul Adrian Driver | Director | 1 Aug 1993 | 12 Jan 2001 | British | 78 years |
| Paul Adrian Rayner | Director | 31 Jan 2013 | 8 Jun 2015 | British | 65 years |
| Paul David England | Director | 6 Oct 2011 | 8 Aug 2013 | British | 56 years |
| Peter David Terry | Director | 1 Nov 1997 | 1 Aug 1998 | British | 87 years |
| Piers Benedict Clark | Director | 1 Nov 2005 | 31 Dec 2009 | British | 57 years |
| Richard Alec Preece | Director | 10 May 2004 | 18 Oct 2004 | British | 80 years |
| Richard Alec Preece | Secretary | 23 Sept 2003 | 18 Oct 2004 | British | - |
| Richard Harry Cuthbert | Director | 10 May 2004 | 5 Oct 2011 | British | 73 years |
| Richard Harry Cuthbert | Director | 10 May 2004 | 5 Oct 2011 | British | 73 years |
| Richard James Coackley | Director | 10 May 2004 | 31 Oct 2005 | British | 72 years |
| Rodney Hewer Harris | Director | 17 Jun 2011 | 25 Jan 2013 | British | 65 years |
| Rosemary Helen Hart | Secretary | 1 Oct 1996 | 23 Sept 2003 | British | - |
| Ruth Mundy | Director | 18 Oct 2004 | 29 Sept 2015 | British | 70 years |
| Stefan Alexander Kubrycht | Director | 1 Feb 1995 | 3 Aug 2004 | British | 80 years |
| Stephen James Morriss | Director | 22 Apr 2008 | 10 Dec 2010 | British | 61 years |
| Stephen John Davies | Director | 8 Apr 2016 | 12 Oct 2016 | British | 66 years |
| Steven James Foster | Director | 30 Sept 2010 | 28 Sept 2011 | British | 59 years |
| Stuart John Black | Director | 15 Oct 2001 | 16 Oct 2004 | British | 62 years |
| Thomas James Wharton Rowe | Director | 30 Sept 2010 | 17 Jan 2011 | British | 59 years |
| Timothy Charles Ingram | Director | 6 Dec 1991 | 1 Oct 1993 | British | 78 years |
| Timothy Charles Ingram | Director | 9 Nov 2000 | 10 May 2004 | British | 78 years |
| Victoria Elizabeth Hames | Secretary | 14 Jan 2005 | 1 Mar 2006 | British | - |
| William John Wyley | Director | 1 Sept 1994 | 30 Jun 2001 | British | 85 years |