| Alan Edward Greenough | Director | 23 Jun 1992 | 31 Dec 1996 | British | 77 years |
| Alan Edward Greenough | Director | 1 Dec 1999 | 3 Jul 2000 | British | 77 years |
| Amanda Jane Emilia Massie | Director | 6 Oct 2011 | 8 Mar 2013 | British | 56 years |
| Amanda Jane Emilia Massie | Secretary | 18 Oct 2004 | 8 Mar 2013 | British | - |
| Anoop Kang | Director | 26 Feb 2016 | 21 Dec 2016 | British | 52 years |
| Anthony Roger Whale | Director | 19 Dec 1995 | 1 Dec 1999 | British | 79 years |
| Bethan Anne Elizabeth Melges | Director | 26 Feb 2016 | 9 Sept 2019 | British | 51 years |
| Carl Sjogren | Secretary | 30 Jul 2010 | 7 Nov 2011 | - | - |
| Christine Ann Shaw | Secretary | 17 Jun 2011 | 2 May 2012 | - | - |
| Christopher John Ellis | Director | 1 May 2002 | 31 Dec 2005 | British | 81 years |
| David Frank Tilston | Director | 3 Feb 2011 | 17 Jun 2011 | British | 69 years |
| David William Ogden | Director | 19 Jun 1996 | 4 Nov 1998 | British | 88 years |
| Francis John Nicholson | Director | 22 Nov 2002 | 20 Jul 2004 | British | 74 years |
| George Ernest Puddephatt | Director | 28 Jun 1991 | 4 Nov 1998 | British | 92 years |
| George Nicholas Hindmarsh | Director | 28 Jun 1991 | 23 Jun 1992 | British | 97 years |
| Giles Stewart Pearson | Director | 8 Aug 2013 | 26 Feb 2016 | British | 58 years |
| Hugh Charles Parkman | Director | 28 Jun 1991 | 4 Nov 1998 | British | 89 years |
| Ian Howard Howitt | Director | 1 Jan 1997 | 30 Sept 2005 | British | 81 years |
| Ian Parker | Director | 1 May 2002 | 30 Sept 2003 | British | 64 years |
| Jeremy Francis Wray | Director | 1 May 2002 | 12 Oct 2016 | British | 73 years |
| John Handley | Director | 28 Jun 1991 | 31 Mar 2003 | British | 83 years |
| John Roger Jones | Director | 4 Nov 1998 | 13 Oct 2006 | British | 82 years |
| Kelly Lee | Secretary | 23 Jul 2009 | 30 Jul 2010 | British | - |
| Nicky Cobden | Secretary | 2 May 2012 | 29 Aug 2013 | - | - |
| Paul Adrian Rayner | Director | 31 Jan 2013 | 8 Jun 2015 | British | 65 years |
| Paul David England | Director | 20 Sept 2010 | 8 Aug 2013 | British | 56 years |
| Peter Robert Howell | Director | 19 Dec 1995 | 30 Sept 1998 | British | 93 years |
| Peter Robin Rickwood | Director | 28 Jun 1991 | 23 Jul 1991 | British | 85 years |
| Philip Higgins | Director | 9 Sept 2019 | 24 Sept 2021 | British | 57 years |
| Reginald Boyd | Director | 28 Jun 1991 | 23 Jun 1992 | British | 101 years |
| Richard Alec Preece | Director | 1 May 2002 | 5 Feb 2007 | British | 80 years |
| Richard Alec Preece | Secretary | 28 Jun 1991 | 8 Dec 2004 | British | - |
| Richard Harry Cuthbert | Director | 1 May 2002 | 5 Oct 2011 | British | 73 years |
| Richard Harry Cuthbert | Director | 1 May 2002 | 5 Oct 2011 | British | 73 years |
| Richard James Coackley | Director | 1 May 2002 | 31 Oct 2005 | British | 72 years |
| Richard Jeremy Archer | Director | 3 Sept 1998 | 1 Dec 2003 | British | 77 years |
| Robert Graham Kilner | Director | 4 Nov 1998 | 30 Sept 2005 | British | 83 years |
| Rodney Hewer Harris | Director | 17 Jun 2011 | 25 Jan 2013 | British | 65 years |
| Roger William Pearce | Director | 19 Jun 1996 | 4 Nov 1998 | British | 84 years |
| Roy Farran | Director | 1 Oct 1991 | 16 Sept 1992 | British | 95 years |
| Simon David Martle | Director | 26 Oct 2018 | 31 Oct 2019 | British | 56 years |
| Thomas Lee Foreman | Director | 21 Dec 2016 | 26 Oct 2018 | British | 50 years |
| William Robert George Eakin | Director | 28 Jun 1991 | 31 Mar 1996 | British | 96 years |