| Adam Alexander Miller | Director | 10 Jan 2008 | 3 Mar 2010 | British | 56 years |
| Alexander Kenneth Niven | Director | 6 May 1997 | 31 Oct 2004 | British | 74 years |
| Andrew Martin | Director | 27 Apr 2001 | 11 Jul 2003 | British | 61 years |
| Ann Irene Perkins | Director | 10 Apr 1992 | 30 Sept 1998 | British | - |
| Anne Patricia Munson | Secretary | 10 Apr 1992 | 21 Jul 2003 | British | - |
| Anthony John Smillie | Director | 31 Oct 2001 | 24 Oct 2007 | British | 70 years |
| Barry John Evans | Director | 17 Feb 2015 | 30 Sept 2015 | British | 64 years |
| Charles Edward James Wenham | Director | 10 Sept 1996 | 1 Jun 1997 | British | 84 years |
| Christopher John Ball | Director | 16 Apr 2015 | 31 Dec 2015 | British | 56 years |
| Christopher Stephen Michael Kipps | Director | 31 May 2023 | 31 Jul 2025 | British | 56 years |
| Colin Arthur Woodland | Director | 1 Nov 2004 | 19 Jan 2009 | British | 71 years |
| David Gaven Cowden | Director | 14 Feb 1996 | 1 Dec 2000 | British | 85 years |
| David Glyn Hughes | Director | 1 Nov 2004 | 5 Jan 2009 | British | 68 years |
| David Sidney Duncombe | Director | 10 Apr 1993 | 30 Oct 2001 | British | 80 years |
| David Winter | Director | 10 Apr 1992 | 30 Apr 1996 | British | 82 years |
| Declan Christopher Hunt | Director | 3 Mar 2010 | 6 Sept 2013 | Irish | 57 years |
| Derek Clifford Johnson | Director | 23 Jul 1993 | 21 Jan 1997 | British | 87 years |
| Duncan Thomas Edward Faithfull | Director | 7 Mar 2013 | 16 Apr 2015 | British | 55 years |
| Fintan Charles O'toole | Director | 1 May 1996 | 1 Apr 1999 | Irish | 67 years |
| Gavin Michael Windsor | Director | 7 Mar 2013 | 13 Sept 2013 | British | 58 years |
| Gerald Langdale | Director | 31 Oct 2001 | 2 Jul 2004 | British | 69 years |
| Graham Austen Levinsohn | Director | 1 Apr 1999 | 31 Oct 2004 | British | 64 years |
| Graham Michael Tancock | Director | 1 Jul 1994 | 1 Oct 1996 | British | 72 years |
| Graham Peter Foster | Director | 1 Oct 2002 | 2 Jul 2004 | British | 67 years |
| Henry William Mckay | Director | 10 Apr 1992 | 6 Apr 1999 | British | 87 years |
| Ian George Bridges | Director | 1 Oct 1996 | 26 Apr 2002 | British | 69 years |
| Ian Leighton Nisbet | Director | 9 Jul 2004 | 1 Jul 2010 | British | 64 years |
| Irene Lavinia Elizabeth Cowden | Director | 10 Apr 1992 | 26 Apr 2002 | British | 73 years |
| James Sebastian Dinsdale | Director | 9 May 2011 | 11 Aug 2011 | British | 60 years |
| James Sebastian Dinsdale | Director | 20 Sept 2011 | 7 Mar 2013 | British | 60 years |
| Jeffrey Buchanan Anderson | Director | 18 Apr 2000 | 31 Oct 2003 | British | 65 years |
| Jennifer Claire Myles | Director | 1 Mar 2002 | 24 Oct 2007 | British | 59 years |
| Jodie Louise Hossen | Director | 1 Feb 2018 | 14 Apr 2023 | British | 49 years |
| John Michael Joseph Campbell | Director | 18 Jan 2018 | 5 Apr 2019 | British | 59 years |
| John Paul Edwards | Director | 2 Aug 1999 | 28 Feb 2002 | British | 63 years |
| John Richard Nelson | Director | 16 Apr 2015 | 1 Feb 2018 | British | 63 years |
| John Wild | Director | 10 Apr 1992 | 10 Sept 1996 | British | 89 years |
| John William Lennox | Director | 14 Jan 2016 | 2 Jan 2020 | British | 66 years |
| Julian Duxfield | Director | 14 Feb 2008 | 3 Aug 2012 | British | 64 years |
| Kevin O'connor | Director | 3 Mar 2010 | 20 Jan 2012 | British | 50 years |
| Kevin O'connor | Director | 7 Mar 2013 | 21 Jan 2015 | British | 50 years |
| Laurence James Sinton | Director | 10 Apr 1992 | 21 Jan 1997 | British | 84 years |
| Leonard Keith Gateson | Director | 10 Apr 1992 | 20 Oct 2000 | British | 70 years |
| Leonard Keith Gateson | Director | 1 Oct 2003 | 24 Oct 2007 | British | 70 years |
| Leonard Keith Gateson | Secretary | 21 Jul 2003 | 24 Oct 2007 | British | - |
| Margaret Ann Ryan | Director | 21 Jan 2008 | 16 Jul 2013 | British | 66 years |
| Margaret Ann Ryan | Secretary | 21 Jan 2008 | 16 Jul 2013 | British | - |
| Matthew Charles Brown | Director | 18 Sept 2013 | 16 Apr 2015 | British | 54 years |
| Moira Paton Nairn | Director | 20 Oct 2000 | 2 Jul 2004 | British | 70 years |
| Neville Andrew Russell Prentice | Director | 1 May 2005 | 7 Mar 2013 | British | 60 years |
| Nicholas Charles Norton | Director | 10 Sept 1996 | 20 Oct 2000 | British | 69 years |
| Nicholas Peter Buckles | Director | 10 Apr 1992 | 22 Nov 1994 | British | 65 years |
| Nicholas Peter Buckles | Director | 1 May 1996 | 26 Apr 2002 | British | 65 years |
| Peter Alexander Charles Smith | Director | 10 Apr 1992 | 1 Jun 1997 | British | 106 years |
| Peter Vincent David | Director | 10 Sept 1996 | 26 Apr 2002 | British | 68 years |
| Phillip Shingler | Director | 9 Jul 2004 | 13 Apr 2012 | British | 71 years |
| Richard Anthony Hellaby | Director | 10 Apr 1992 | 21 Jan 1997 | British | 83 years |
| Richard George Hawkins | Director | 10 Sept 1996 | 2 Jan 1998 | British | 77 years |
| Robin Bartolomy | Director | 10 Apr 1992 | 21 Jan 1997 | British | 82 years |
| Roger Sydney William Hale Wiggs | Director | 10 Apr 1992 | 11 Sept 1996 | British | 87 years |
| Rosemary Jill Carter | Director | 1 Mar 1993 | 23 Mar 1994 | British | 76 years |
| Roy David Dodd | Director | 20 Oct 2000 | 30 Sept 2003 | British | 62 years |
| Simon Paul Thomas Presswell | Director | 1 May 2005 | 28 Sept 2006 | British | 56 years |
| Trace Lee Norton | Director | 14 Jan 2016 | 31 Jul 2017 | British | 63 years |
| Trevor Leslie Dighton | Director | 2 Jan 1998 | 26 Apr 2002 | British | 77 years |
| Vaishali Jagdish Patel | Secretary | 16 Jul 2013 | 5 May 2021 | - | - |
| Victoria Avril Woodison | Director | 3 Aug 2012 | 16 Apr 2015 | British | 54 years |
| William Joseph Hoyne | Director | 16 Apr 2015 | 18 Jan 2018 | Irish | 68 years |