| Adrian Saunders | Director | 1 Aug 1993 | 17 Dec 2001 | British | 73 years |
| Alan David Yuille | Secretary | 10 Dec 2012 | 15 Nov 2018 | - | - |
| Alexander Park Leitch | Director | 27 Apr 2010 | 25 Jan 2012 | British | 79 years |
| Andrew George O'leary | Director | 2 May 1991 | 1 Mar 1993 | British | 97 years |
| Andrew George O'leary | Secretary | 2 May 1991 | 1 Jul 1991 | British | - |
| Andrew Mark Parsons | Director | 9 Nov 2012 | 9 Dec 2016 | British | 61 years |
| Andrew Michael Peck | Director | 24 Jan 2008 | 25 Jan 2012 | British | 77 years |
| Archibald Gerard Kane | Director | 4 Mar 2009 | 19 May 2011 | British | 74 years |
| Brian Gammell Ivory | Director | 31 Jan 2002 | 30 Sept 2003 | British | 77 years |
| Brian James Duffin | Director | 24 Jan 2008 | 18 Mar 2010 | British | 71 years |
| Catriona Margaret Herd | Secretary | 25 Mar 2010 | 10 Dec 2012 | British | - |
| David James Walkden | Director | 31 Mar 2013 | 25 Mar 2015 | British | 68 years |
| David Spencer Boyle | Director | 31 Jan 2002 | 30 Sept 2003 | British | 84 years |
| Douglas Ferrans | Director | 19 Jun 2001 | 30 Sept 2003 | British | 72 years |
| Duncan George Robin Ferguson | Director | 14 Jul 2003 | 31 Dec 2007 | British | 84 years |
| Eric Nigel Guard | Director | 2 May 1991 | 1 Jul 1992 | British | 77 years |
| Eric William Hodson | Director | 18 Jul 1991 | 31 Jan 1996 | British | 90 years |
| Felix Bernard Caulfield | Director | 2 May 1991 | 17 Dec 2001 | Irish | 82 years |
| Gregor Ninian Stewart | Director | 15 Dec 2011 | 5 Oct 2012 | British | 62 years |
| Howard Michael Posner | Director | 31 Jan 2002 | 30 Sept 2003 | British | 70 years |
| James Masson Black | Director | 23 Mar 2015 | 29 Jul 2016 | British | 62 years |
| Jeremy Goford | Director | 27 Apr 2010 | 25 Jan 2012 | British | 81 years |
| Joanne Dawson | Director | 1 Mar 2006 | 23 Mar 2009 | British | 64 years |
| John Neil Maclean | Director | 31 Jan 2002 | 24 Mar 2005 | British | 82 years |
| John Patrick Hiew | Director | 1 Oct 2003 | 28 Sept 2005 | British | 62 years |
| John Spellman | Director | 10 Nov 2005 | 8 Sept 2006 | British | 60 years |
| John Stephen Edwards | Director | 19 Jun 2001 | 26 Apr 2006 | British | 71 years |
| John Van Der Wielen | Director | 4 Mar 2009 | 25 Mar 2010 | Australian | 60 years |
| Kathleen Anne Nealon | Director | 24 Mar 2005 | 31 Dec 2007 | American | 73 years |
| Keith William Abercromby | Director | 31 Jan 2002 | 17 Oct 2005 | British | 62 years |
| Kerr Luscombe | Director | 6 Apr 2010 | 25 May 2011 | British | 61 years |
| Malachy Paul Smith | Director | 14 Oct 2005 | 31 Dec 2007 | Irish | 78 years |
| Martin Ascroft Pluck | Director | 16 Jul 1992 | 10 Nov 2000 | British | 69 years |
| Michael Christophers | Director | 6 Oct 2005 | 25 Jan 2012 | British | 84 years |
| Michael Hamilton | Director | 2 May 1991 | 1 Mar 1993 | British | 100 years |
| Michael John Deakin | Director | 19 Apr 1995 | 17 Dec 2001 | British | 73 years |
| Michael Rodney Newton Moore | Director | 31 Jan 2002 | 31 Dec 2007 | British | 90 years |
| Michael Stuart Robinson | Director | 1 Oct 2003 | 28 Sept 2005 | British | 62 years |
| Norval Mackenzie Bryson | Director | 27 Apr 2010 | 25 Jan 2012 | British | 77 years |
| Patrick Nigel Christopher Gale | Director | 24 Jan 2008 | 31 Dec 2009 | British | 66 years |
| Paul Gerard Mcnamara | Director | 30 Nov 2005 | 30 Jun 2007 | Irish | 60 years |
| Paul Russell Moore | Director | 15 Aug 2002 | 30 Sept 2003 | United Kingdom | 68 years |
| Peter John Veale | Secretary | 4 Aug 2000 | 23 Mar 2009 | British | - |
| Peter Louis Michael Sherwood | Director | 31 Jan 2002 | 31 Dec 2004 | British | 85 years |
| Phil Andrew Hodkinson | Director | 31 Jan 2002 | 28 Jul 2005 | British | 68 years |
| Philip Duncan Loney | Director | 25 Mar 2010 | 27 Sept 2011 | British | 62 years |
| Raymond John Hildreth Milne | Director | 1 Oct 2003 | 30 Jun 2007 | British | 67 years |
| Richard Andrew Jones | Director | 1 Apr 2014 | 29 Jun 2015 | British | 54 years |
| Robert Alan Devey | Director | 18 Oct 2005 | 1 Jun 2006 | British | 58 years |
| Robert Alan Devey | Director | 10 Oct 2006 | 23 Mar 2009 | British | 58 years |
| Robert Philippe Walther | Director | 1 Mar 1993 | 31 Oct 2001 | British | 83 years |
| Roger David Corley | Director | 2 May 1991 | 19 Apr 1995 | British | 93 years |
| Roland Gordon Ward | Director | 31 Jan 1996 | 27 Mar 2003 | British | 81 years |
| Ronald Frank Cameron Taylor | Director | 2 Mar 2015 | 9 Dec 2016 | British | 60 years |
| Sally Mayer | Secretary | 23 Mar 2009 | 25 Mar 2010 | Other | - |
| Simon David Massey | Director | 10 Dec 2012 | 1 Apr 2014 | British | 62 years |
| Stephen James Allchin | Director | 2 May 1991 | 1 Aug 1993 | British | 78 years |
| Stephen James Mcgee | Director | 10 Feb 2012 | 9 Dec 2014 | British | 53 years |
| Steven James Colsell | Director | 17 Aug 2006 | 23 Mar 2009 | British | 62 years |
| Susan Annabel Margaret Fogarty | Secretary | 1 Jul 1991 | 4 Aug 2000 | British | - |
| Thomas Woolgrove | Director | 29 Jun 2006 | 30 Jun 2007 | British | 56 years |
| Toby Emil Strauss | Director | 17 Oct 2011 | 8 Mar 2013 | British | 67 years |
| Trevor Anthony Leonard | Director | 25 Nov 2005 | 5 Apr 2010 | United Kingdom | 67 years |
| William Anthony Beadle | Director | 27 Oct 2005 | 17 Aug 2006 | British | 77 years |