| Adam Holden | Director | 31 Jan 2014 | 1 Jul 2016 | British | 52 years |
| Alexander Arthur George Rankin | Director | 24 Jan 2005 | 7 Sept 2016 | British | 67 years |
| Andrew David Barnard | Director | 6 Apr 2009 | 19 Apr 2010 | British | 54 years |
| Angela Mary Cunningham | Secretary | 21 Apr 2004 | 26 Jul 2007 | British | - |
| Brian Addison Carte | Director | 27 Feb 1992 | 16 Nov 1992 | British | 82 years |
| Brian Addison Carte | Director | 27 Feb 1993 | 30 Jun 1996 | British | 82 years |
| Colin Jamie Fleming Walls | Director | 24 Jan 2005 | 15 Nov 2007 | British | 58 years |
| David Brian Wilcox | Director | 1 Nov 2000 | 17 Mar 2006 | British | 79 years |
| Derek John Lewis | Secretary | 27 Apr 1993 | 6 Aug 2000 | British | - |
| Duane Edward Snelling | Director | 30 Jul 2007 | 17 Dec 2008 | British | 62 years |
| Francesca Margaret Semple | Director | 26 Jan 2006 | 1 Mar 2007 | British | 55 years |
| Ian Duncan Cowie | Director | 31 Mar 2015 | 31 Oct 2016 | British | 65 years |
| James Frederick Beck | Director | 18 Jan 2001 | 31 Oct 2003 | British | 75 years |
| Jason Asa Morgan | Director | 1 Sept 2005 | 1 Mar 2007 | British | 56 years |
| Jeffrey Johnson | Director | 20 Feb 1995 | 30 Apr 1999 | British | 80 years |
| John Albert Lea | Secretary | 7 Aug 2000 | 21 Apr 2004 | British | - |
| John Hamer Wood | Director | 31 Dec 2008 | 15 Aug 2013 | British | 63 years |
| John Hamer Wood | Director | 23 Aug 2016 | 30 Jun 2017 | British | 63 years |
| John Leonard Whitehorn | Director | 27 Feb 1992 | 1 Nov 2000 | British | 86 years |
| Lawrence Edward De Lisle Nichols | Director | 24 Jan 2005 | 22 Sept 2005 | British | 68 years |
| Malcolm Winston Turner | Director | 27 Feb 1992 | 29 Feb 2000 | British | 81 years |
| Marina Louise Thomas | Secretary | 20 Apr 2004 | 20 Apr 2004 | British | - |
| Martin John Morrin | Director | 9 Jun 2011 | 31 Mar 2015 | Irish | 67 years |
| Melanie Jane Hannay | Director | 1 Mar 2007 | 6 Apr 2009 | British | 58 years |
| Michael Alan Maberly | Director | 27 Feb 1992 | 31 Dec 1994 | British | 89 years |
| Michael Jeffrey Bardrick | Director | 25 Oct 2011 | 30 Jun 2014 | British | 58 years |
| Neil Anthony Sculley | Director | 2 Jan 2007 | 30 Jul 2007 | British | 64 years |
| Neil Joseph Bradley | Director | 13 Apr 2004 | 29 Dec 2006 | British | 59 years |
| Oliver David Watts | Director | 19 Apr 2010 | 31 Jan 2014 | British | 50 years |
| Patricia Ann Stranaghan | Secretary | 27 Feb 1992 | 27 Apr 1993 | British | - |
| Paul Robert Gee | Director | 27 Feb 1992 | 2 Feb 1994 | British | 76 years |
| Peter David Hayden | Director | 22 Apr 1997 | 18 Jan 2001 | British | 67 years |
| Peter Edmund Lord | Director | 1 Jul 2016 | 11 Oct 2018 | British | 67 years |
| Peter Nigel Comfort | Director | 18 Jan 2001 | 24 Jan 2005 | British | 70 years |
| Peter Torrance | Director | 18 Jan 2001 | 24 Jan 2005 | British | 70 years |
| Rachel Elizabeth Fletcher | Secretary | 27 Jul 2007 | 27 Apr 2012 | British | - |
| Robert John Smith | Director | 27 Feb 1992 | 31 Jul 2000 | British | 78 years |
| Ross William Mcfarlane | Director | 18 Jan 2001 | 18 Apr 2012 | British | 64 years |
| Stuart Antony Holloway | Director | 27 Jan 2000 | 11 Jun 2004 | British | 68 years |
| Susan Myra Jones | Director | 22 Oct 1999 | 29 Jun 2001 | British | 69 years |
| Suzanne Saville | Director | 1 Mar 2007 | 19 Mar 2009 | British | 61 years |
| William Henry Greep | Director | 27 Feb 1992 | 8 May 1998 | British | 87 years |