| Alex Harrison | Director | 22 May 2007 | 15 Jul 2009 | British | 60 years |
| Andrew Howard Jacobs | Director | 14 Apr 1998 | 21 Aug 2000 | British | 74 years |
| Andrew Mark Parsons | Director | 2 Apr 2015 | 16 Jun 2015 | British | 61 years |
| Arthur Christopher Jowett | Director | 16 Oct 1992 | 31 Oct 1995 | British | 81 years |
| Arthur Selman | Director | 31 Oct 1995 | 14 Feb 2002 | British | 80 years |
| Brian Abram | Director | 15 Feb 1993 | 14 Apr 1998 | British | 69 years |
| Charles Stephen Cockroft | Secretary | 15 Jun 1991 | 23 Sept 1994 | British | - |
| Christina Ann Hankin | Secretary | 10 Sept 2018 | 31 Dec 2019 | - | - |
| Christopher George Haines | Director | 16 Nov 2001 | 27 Jun 2003 | British | 68 years |
| Daniel Crawford Laughlan | Director | 15 Jun 1991 | 12 Sept 1992 | British | 94 years |
| David Clarke | Secretary | 2 Jul 2018 | 10 Sept 2018 | - | - |
| David Fisher | Director | 14 Apr 1998 | 25 Jun 1999 | British | 68 years |
| David Stephen Vallery | Director | 12 Jun 2003 | 16 May 2005 | British | 58 years |
| Derek Albert Griffiths | Director | 15 Jun 1991 | 13 Jan 1993 | British | 96 years |
| Donald James Mcpherson | Secretary | 24 Sept 1994 | 31 Aug 1995 | British | - |
| Donald James Mcpherson | Secretary | 23 Oct 2000 | 4 Sept 2001 | British | - |
| Emma Jayne Watkins | Director | 5 Feb 2024 | 27 Nov 2024 | British | 53 years |
| Geoffrey Keith Jackson | Director | 1 Jul 1994 | 31 Oct 1995 | British | 83 years |
| Graeme John Donaldson | Secretary | 11 Aug 2016 | 2 Jul 2018 | - | - |
| Graham Alistair Horn | Director | 12 Jun 2003 | 21 May 2007 | British | 67 years |
| Grenville John Folwell | Director | 15 Jun 1991 | 1 Jul 1994 | British | 83 years |
| Ian Spencer Black | Director | 14 Apr 1998 | 14 Feb 2002 | British | 68 years |
| James Masson Black | Director | 20 Mar 2014 | 21 Sept 2016 | British | 62 years |
| James Robert Crosby | Director | 28 Feb 1994 | 14 Apr 1998 | British | 70 years |
| Jane Pridgeon | Director | 25 Jun 1999 | 6 Nov 2000 | British | 73 years |
| Joanne Dawson | Director | 27 Jun 2003 | 16 Feb 2004 | British | 64 years |
| John Michael Butler | Secretary | 1 Mar 2003 | 16 Oct 2009 | British | - |
| John Warburton | Director | 15 Jul 2009 | 24 Jun 2010 | British | 67 years |
| Karen Joanne Mckay | Secretary | 16 Oct 2009 | 11 Aug 2016 | - | - |
| Keith William Abercromby | Director | 21 Aug 2000 | 12 Jun 2003 | British | 62 years |
| Mario Emanuele Mazzocchi | Director | 9 Dec 2015 | 20 Jul 2018 | Italian | 53 years |
| Mark Wilson | Director | 10 Nov 2022 | 30 Nov 2023 | British | 56 years |
| Martin Kenneth Staples | Director | 30 Apr 2024 | 27 Nov 2024 | British | 53 years |
| Matt Lendon | Director | 31 Dec 2022 | 30 Apr 2024 | British | 45 years |
| Michael Fearnsides | Director | 15 Jun 1991 | 30 Jun 1994 | British | 90 years |
| Neil Lindsay Nicholson Machray | Director | 24 Jun 2010 | 31 Mar 2013 | British | 57 years |
| Nicholas Goodwin Frankland | Director | 17 Jul 2009 | 23 Jun 2010 | British | 55 years |
| Paul Michael Martin | Director | 31 Oct 1995 | 14 Apr 1998 | British | 71 years |
| Philip Robert Grant | Director | 21 Sept 2016 | 10 Nov 2022 | British | 60 years |
| Raymond John Hildreth Milne | Director | 16 Nov 2001 | 15 Jul 2009 | British | 67 years |
| Richard Andrew Jones | Director | 18 Jun 2012 | 7 Dec 2015 | British | 54 years |
| Richard George Myers | Director | 16 Nov 2001 | 12 Jun 2003 | British | 69 years |
| Robert Keith Moorhouse | Secretary | 16 Nov 2001 | 1 Mar 2003 | British | - |
| Robert William Fletcher | Director | 23 Jun 2010 | 16 Apr 2014 | British | 62 years |
| Ronald Frank Cameron Taylor | Director | 16 Apr 2014 | 31 Dec 2017 | British | 60 years |
| Sally Mayer | Secretary | 4 Sept 2001 | 16 Nov 2001 | British | - |
| Sean William Lowther | Director | 10 Apr 2017 | 31 Dec 2022 | British | 66 years |
| Simon David Massey | Director | 11 Jul 2013 | 20 Mar 2014 | British | 62 years |
| Simon Hugh Burton | Director | 16 Nov 2001 | 30 Jun 2002 | British | 72 years |
| Simon Nicholas Waite | Secretary | 31 Aug 1995 | 23 Oct 2000 | British | - |
| William Anthony Beadle | Director | 1 Jul 1994 | 14 Feb 2002 | British | 77 years |