| Adrian Timothy Rigby | Director | 17 Jun 2011 | 22 May 2012 | British | 60 years |
| Alan Mcalpine Keir | Director | 31 Oct 2003 | 24 Dec 2007 | British | 68 years |
| Alan Renatus Frederick Hughes | Director | 1 Feb 1996 | 1 Apr 1997 | British | 75 years |
| Alexa Jane Coates | Director | 25 May 2015 | 3 Aug 2017 | British | 56 years |
| Brian Gerald Pearse | Director | 22 Sept 1992 | 31 Mar 1994 | British | 93 years |
| Brian Lees Goldthorpe | Director | 6 May 1992 | 16 Sept 1992 | British | 93 years |
| Charlotte Caulfield | Secretary | 27 Apr 2016 | 8 Jun 2017 | - | - |
| Christopher Raymond Kell | Director | 30 Dec 2002 | 31 Oct 2003 | British | 68 years |
| Craig Anthony Wilson | Director | 25 Jan 2017 | 31 Mar 2017 | British | 48 years |
| David Harry Mead | Director | 31 Oct 2003 | 29 Jun 2007 | British | 65 years |
| David William Gilman | Director | 6 May 1992 | 31 Oct 2003 | British | 74 years |
| Frances Julie Niven | Secretary | 11 Jun 2004 | 25 Apr 2006 | British | - |
| Gavin Paul Hewitt | Director | 28 Sept 2011 | 23 Jan 2015 | British | 47 years |
| George Howard Tonks | Director | 1 Apr 1997 | 30 Dec 2002 | British | 72 years |
| George William Bayer | Secretary | 21 Feb 2008 | 12 Sept 2008 | Other | - |
| Graham Edward Picken | Director | 6 May 1992 | 14 Jul 2003 | British | 77 years |
| Hannah Elizabeth Shepherd | Secretary | 29 Jun 2010 | 28 Mar 2011 | - | - |
| Hollie Rheanna Wood | Secretary | 28 Mar 2011 | 24 Jul 2013 | - | - |
| John Hume Mckenzie | Director | 1 Apr 1997 | 31 Dec 2002 | British | 72 years |
| John Hume Mckenzie | Secretary | 6 May 1992 | 1 Jul 2001 | British | - |
| Jonathan Phillips | Director | 1 Jan 1995 | 31 Mar 1996 | British | 74 years |
| Katherine Dean | Secretary | 24 Jul 2013 | 29 Feb 2016 | - | - |
| Keith Roderick Whitson | Director | 6 Apr 1994 | 1 Apr 1997 | British | 83 years |
| Kevin Joseph Godfrey | Director | 31 Oct 2003 | 25 May 2015 | Irish | 66 years |
| Malcolm James Brookes | Director | 19 Dec 2003 | 9 Jun 2011 | British | 71 years |
| Mark Emmerson | Director | 26 Oct 2015 | 30 Jun 2017 | British | 60 years |
| Mark Vivian Pearce | Secretary | 19 Dec 2002 | 11 Jun 2004 | British | - |
| Mary Bridget Kenny | Director | 29 Jun 2007 | 3 Dec 2008 | British | 61 years |
| Mary Bridget Kenny | Director | 29 Jun 2007 | 17 Jun 2010 | British | 61 years |
| Molly Ranger | Secretary | 22 Mar 2018 | 26 Jul 2019 | - | - |
| Nicholas David Barker | Director | 15 Feb 2007 | 9 Sept 2011 | British | 62 years |
| Nivedita Subramanian | Director | 26 Oct 2015 | 25 Jan 2017 | British | 46 years |
| Noel Paul Quinn | Director | 19 Jul 2007 | 31 Mar 2011 | British | 64 years |
| Patrick Michael Nolan | Director | 6 Sept 2004 | 2 Jun 2009 | British | 61 years |
| Paul Kenneth Seward | Director | 25 May 2015 | 26 Oct 2017 | British | 70 years |
| Pauline Louise Mcquillan | Secretary | 25 Apr 2006 | 21 Feb 2008 | British | - |
| Richard Davies | Director | 25 May 2015 | 25 Jan 2017 | British | 47 years |
| Richard Lelong | Director | 25 May 2015 | 30 Sept 2015 | French | 57 years |
| Robert David Lane | Director | 30 Dec 2002 | 31 Oct 2003 | British | 67 years |
| Robert Hugh Musgrove | Secretary | 1 Jul 2001 | 19 Dec 2002 | Other | - |
| Robert Laurence Wyatt | Director | 6 May 1992 | 31 Mar 1997 | British | 83 years |
| Robin Louis Henning Bencard | Director | 29 Jun 2010 | 1 Aug 2016 | British | 63 years |
| Sarah Caroline Gott | Secretary | 1 Oct 2008 | 29 Jun 2010 | British | - |
| Stephen Andrew Bottomley | Director | 6 Sept 2004 | 19 Jul 2007 | British | 67 years |
| Wallace George William Stein | Director | 6 May 1992 | 14 May 1993 | British | 74 years |
| Warwick Alan George Long | Director | 25 May 2015 | 26 Oct 2015 | British | 60 years |