| Alan William Severn | Director | 2 May 2002 | 29 Oct 2010 | British | 78 years |
| Andrew Edward Woolner | Director | 20 Oct 1995 | 28 Feb 1996 | British | 90 years |
| Beverley Elizabeth Lawson | Director | 29 Oct 2010 | 29 Aug 2013 | British | 67 years |
| Brian Barraclough | Director | 1 Nov 2010 | 6 Aug 2014 | British | 71 years |
| Brian John Kerslake | Director | 7 Oct 1994 | 1 Sept 1995 | British | 79 years |
| David Graham Johnstone | Director | 6 Oct 2004 | 29 Apr 2005 | British | 63 years |
| David John Leeder | Director | 21 Jun 1995 | 15 Nov 1995 | British | 60 years |
| David Paul Turner | Director | 6 Oct 2004 | 29 Apr 2005 | British | 76 years |
| David Paul Turner | Secretary | 28 Feb 1996 | 18 Jan 2005 | British | - |
| Donald Colston | Director | 7 Oct 1994 | 4 Aug 1995 | British | 86 years |
| Edward Arthur Tweedy Milburn | Director | 17 Apr 1996 | 3 Oct 1998 | British | 85 years |
| Elizabeth Anne Davies | Secretary | 18 Jan 2005 | 16 Dec 2013 | British | - |
| Gordon William Hodgson | Director | 28 Feb 1996 | 31 Dec 1998 | British | 95 years |
| Graham John Willett | Director | 9 Nov 1991 | 7 Oct 1994 | British | 78 years |
| Graham John Willett | Secretary | 16 Aug 1993 | 6 Sept 1993 | British | - |
| Heath Williams | Director | 2 May 2002 | 1 Jan 2006 | British | 60 years |
| Heath Williams | Director | 1 Nov 2010 | 28 Jun 2016 | British | 60 years |
| Helen Mary Seeber | Director | 17 Jun 2020 | 12 Jan 2024 | British | 43 years |
| John Alfred Ray | Director | 15 Sept 1998 | 2 May 2002 | British | 75 years |
| John Denis Pycroft | Director | 28 Feb 1996 | 3 Oct 1998 | British | 78 years |
| Joseph Thomas Duffy | Director | 20 Sept 1995 | 27 Nov 1995 | British | 78 years |
| Keith Martyn Spicer | Director | 1 Jan 2006 | 19 Sept 2008 | British | 65 years |
| Kevin Paul Hawkins | Director | 29 Oct 2010 | 4 Jun 2015 | British | 67 years |
| Lewis Richards | Secretary | 7 Oct 1994 | 28 Feb 1996 | British | - |
| Lorna Edwards | Secretary | 16 Dec 2013 | 12 Jun 2020 | - | - |
| Lorna Edwards | Director | 28 Jun 2016 | 17 Jun 2020 | British | 42 years |
| Mark Antony Bowd | Director | 2 May 2002 | 16 Aug 2013 | British | 64 years |
| Mark David James Yexley | Director | 17 Apr 1996 | 3 Oct 1998 | British | 69 years |
| Mark David James Yexley | Director | 1 Nov 2010 | 3 Jul 2015 | British | 69 years |
| Michael Peter Gwilt | Director | 20 May 1998 | 12 Jun 1998 | British | 69 years |
| Nathanael Christopher Mellor | Director | 29 Aug 2013 | 30 May 2014 | British | 51 years |
| Paul Stephen Adcock | Director | 1 Feb 2010 | 18 Jan 2016 | British | 55 years |
| Philip Michael White | Director | 7 Oct 1994 | 28 Feb 1996 | British | 77 years |
| Philip Race | Director | 9 Nov 1991 | 7 Oct 1994 | British | 78 years |
| Philip Race | Secretary | 9 Nov 1991 | 16 Aug 1993 | British | - |
| Philip Race | Secretary | 6 Sept 1993 | 7 Oct 1994 | British | - |
| Ralph Hubert Roberts | Director | 9 Nov 1991 | 7 Oct 1994 | British | 101 years |
| Richard Anthony Bowler | Director | 27 Jul 2000 | 22 Dec 2015 | British | 73 years |
| Robert John Davies | Director | 30 Dec 1998 | 26 Mar 2002 | British | 78 years |
| Robert Lynton Howells | Director | 9 Nov 1991 | 7 Oct 1994 | British | 76 years |
| Robert William Newson | Director | 17 Apr 1996 | 31 Jul 1998 | British | 67 years |
| Stephen John Clayton | Director | 28 Feb 1996 | 2 May 2002 | British | 73 years |
| Stephen Philip Lonsdale | Director | 28 Feb 1996 | 2 May 2002 | British | 69 years |
| Visvanathan Rajasekar | Director | 21 Jun 1995 | 28 Feb 1996 | British | 65 years |