| Andrew Hampden Hobart | Director | 1 Jan 2013 | 31 Dec 2015 | British | 63 years |
| Andrew Laird | Director | 1 Jun 2006 | 14 Jun 2012 | British | 70 years |
| Andrew Oswell Bede Davies | Director | 6 Jan 2014 | 10 Nov 2017 | British | 62 years |
| Andrew Trace Allan Wates | Director | 9 Feb 1995 | 2 Oct 2000 | British | 85 years |
| Andrew Trace Allan Wates | Director | 16 Jan 2004 | 6 Sept 2004 | British | 85 years |
| Anthony Geoffrey Peters | Director | 9 Jun 1992 | 31 Dec 1997 | British | 87 years |
| Ashley Game | Secretary | 2 Oct 2000 | 30 Apr 2002 | British | - |
| Brian Learoyd | Director | 9 Jun 1992 | 12 Oct 1994 | British | 91 years |
| Christopher Stephen Wates | Director | 9 Jun 1992 | 2 Oct 2000 | British | 86 years |
| Dave Duncan Struan Robertson | Director | 2 Oct 2000 | 16 Jan 2004 | British | 76 years |
| David Gordon Smith | Director | 25 Oct 2001 | 17 Oct 2016 | British | 65 years |
| David Huw Davies | Director | 1 Feb 2005 | 4 Jan 2016 | British | 69 years |
| David Huw Davies | Secretary | 1 Feb 2005 | 30 May 2006 | British | - |
| David Huw Davies | Secretary | 31 Dec 2007 | 4 Jan 2016 | British | - |
| David Keir Ewart Morgan | Director | 10 Nov 2017 | 3 Feb 2025 | British | 51 years |
| David Owen Allen | Director | 4 Jan 2016 | 16 Aug 2022 | British | 53 years |
| David Owen Allen | Secretary | 4 Jan 2016 | 3 Dec 2018 | - | - |
| Helen Patricia Bunch | Director | 1 Apr 2010 | 30 Apr 2025 | British | 60 years |
| Ian George Burnett | Director | 31 Jan 2008 | 31 Dec 2012 | British | 66 years |
| James Garwood Michael Wates | Director | 20 Oct 1994 | 30 Sept 2001 | British | 65 years |
| John Edwards | Director | 31 Dec 1992 | 30 Sept 1999 | British | 78 years |
| John Frederick Rowsell | Director | 28 Feb 1994 | 24 Oct 2001 | British | 80 years |
| John Frederick Rowsell | Director | 24 Jan 2005 | 1 Jun 2006 | British | 80 years |
| John Peter Howell | Director | 30 Sept 2013 | 30 Jun 2016 | British | 71 years |
| Jonathan Charles Bennett Houlton | Director | 1 Jun 1998 | 1 Feb 2005 | British | 64 years |
| Jonathan Charles Bennett Houlton | Secretary | 30 Jun 2000 | 2 Oct 2000 | British | - |
| Jonathan Charles Bennett Houlton | Secretary | 30 Apr 2002 | 1 Feb 2005 | British | - |
| Julia Kathryn Tyson | Director | 12 Dec 2006 | 30 Sept 2013 | British | 63 years |
| Kenneth George Baker | Director | 5 Jul 1999 | 12 Dec 2006 | British | 84 years |
| Martin John Edward Tidd | Director | 25 Oct 2001 | 8 Nov 2004 | British | 65 years |
| Martin John Peat | Director | 31 Dec 1992 | 19 Jun 1996 | British | 77 years |
| Martyn Alan Shepherd | Director | 25 Oct 2001 | 8 Nov 2004 | British | 62 years |
| Narinder Singh Sareen | Secretary | 9 Jun 1992 | 29 Apr 1994 | British | - |
| Paul Campbell Rowan | Director | 31 Dec 2015 | 31 Jul 2025 | British | 61 years |
| Paul Chandler | Director | 24 Aug 2017 | 31 Dec 2024 | British | 61 years |
| Paul David Phipps | Director | 30 Jun 2003 | 31 Dec 2005 | British | 73 years |
| Paul Joseph Drechsler | Director | 6 Sept 2004 | 6 Jan 2014 | Irish | 69 years |
| Peter Edward Whittle | Director | 14 Jun 2012 | 31 Dec 2013 | British | 73 years |
| Philip Smith Lord | Director | 9 Jun 1992 | 30 Jun 1995 | British | 91 years |
| Richard John Girdlestone | Director | 1 Jan 2000 | 31 Mar 2010 | British | 76 years |
| Robert Michael Leitch | Director | 31 Dec 1992 | 30 May 1997 | British | 70 years |
| Robin Lovell | Director | 9 Jun 1992 | 31 Dec 1992 | British | 83 years |
| Roderick Alistair Stewart | Director | 1 Jan 2011 | 26 Oct 2012 | British | 67 years |
| Rodney John Bennion | Director | 9 Jun 1992 | 30 Jun 2003 | British | 79 years |
| Simon James Potter | Director | 26 Jul 2018 | 31 Mar 2025 | British | 62 years |
| Stephen Robert Price | Director | 24 Jan 2008 | 31 Dec 2010 | British | 66 years |
| Stuart John Togwell | Director | 22 Sept 2011 | 25 Jul 2018 | British | 57 years |
| Terry Ann Styant | Secretary | 30 May 2006 | 31 Dec 2007 | British | - |
| William Graham Mackie | Director | 1 Nov 1993 | 30 Jun 2000 | British | 73 years |
| William Graham Mackie | Secretary | 29 Apr 1994 | 30 Jun 2000 | British | - |