| Adrian Daniel Roberts | Director | 17 Jul 2014 | 26 Nov 2018 | British | 63 years |
| Alastair James Fletcher Mutch | Director | 14 Aug 1992 | 24 Oct 1992 | British | 87 years |
| Allison Jane Thornton | Secretary | 3 Jul 1998 | 16 Feb 2000 | British | - |
| Andrew John Allan | Director | 12 Apr 2012 | 9 Oct 2017 | British | 58 years |
| Anthony Howard Wilson | Director | 21 Apr 1995 | 16 Sept 2003 | British | 76 years |
| Barbara Anne Crewe | Secretary | 14 Aug 1992 | 21 Apr 1995 | British | - |
| Barry Sidney Plumb | Director | 20 Oct 1995 | 24 Jan 2008 | British | 82 years |
| Beverley Jane Davies | Director | 6 Jul 2001 | 5 Sept 2012 | British | 74 years |
| Beverley Jane Davies | Secretary | 6 Jul 2007 | 24 Jan 2008 | British | - |
| Brian Harrison | Director | 12 Jul 1993 | 26 Jan 2010 | British | 93 years |
| Catherine Elizabeth Tooher | Director | 28 Jan 2000 | 24 Aug 2002 | British | 62 years |
| Christine Elizabeth Sheppard | Secretary | 16 Feb 2000 | 2 Jan 2002 | British | - |
| Christopher Andrew Roberts | Director | 12 Apr 2012 | 21 Sept 2018 | British | 55 years |
| Christopher Richard Terras | Director | 1 Aug 1999 | 20 Oct 2004 | British | 89 years |
| David Nicholas Henderson James | Director | 14 Aug 1992 | 24 Oct 1992 | British | 94 years |
| Derek Harrison Slade | Director | 1 Sept 1994 | 1 Aug 1999 | British | 93 years |
| Eamonn John Boylan | Director | 26 Mar 2008 | 28 Nov 2008 | British | 67 years |
| Edward Ashley Lote Smith | Director | 26 Apr 2017 | 29 May 2020 | British | 66 years |
| Frederick Michael Burdekin | Director | 14 Aug 1992 | 21 Jul 1995 | British | 88 years |
| Garth Henry Roberts | Director | 14 Aug 1992 | 30 Sept 1995 | British | 87 years |
| Geoffrey Hope Terry | Director | 29 Oct 2004 | 31 Dec 2006 | British | 77 years |
| Gerald Kelleher | Director | 23 Oct 2008 | 26 Jan 2010 | British | 68 years |
| Gerard William Keary | Director | 13 Oct 2000 | 31 Dec 2006 | British | 68 years |
| Gerry Kelleher | Director | 12 Apr 2012 | 24 Jul 2013 | British | 68 years |
| Howard Bernstein | Director | 1 Oct 2011 | 26 Apr 2017 | British | 73 years |
| Ian Edmund Ferguson Stewart | Director | 24 Oct 1992 | 30 Sept 2006 | British | 80 years |
| Ian Stewart | Director | 1 Jun 2012 | 22 Jun 2016 | British | 76 years |
| James Grigor | Director | 14 Aug 1992 | 1 Oct 2000 | British | 96 years |
| James Thomas Taylor | Director | 22 Jun 2016 | 30 Jun 2021 | British | 65 years |
| Jean-noel Ezingeard | Director | 15 Jun 2015 | 1 May 2019 | British | 58 years |
| John Angus Hickman | Director | 19 Jan 1996 | 15 Oct 1999 | British | 81 years |
| John Brian Heron | Director | 14 Aug 1992 | 11 Feb 1997 | British | 93 years |
| John Charles Allen | Director | 19 Jul 1996 | 30 Sept 2006 | Britist | 88 years |
| John David Merry | Director | 4 May 2010 | 12 Apr 2012 | British | 70 years |
| John Flanagan | Director | 14 Aug 1992 | 2 May 1996 | British | 89 years |
| John Hamilton Woodcock | Director | 6 Jul 2001 | 12 Apr 2012 | British | 91 years |
| John Richard Timothy Greene | Director | 1 May 2019 | 21 Jun 2022 | British | 61 years |
| John Stewart Brooks | Director | 24 Jul 2013 | 15 Jun 2015 | British | 77 years |
| Joyce Enid Keller | Director | 19 Jul 1996 | 26 Jan 2010 | British | 97 years |
| Karen Jane Hirst | Director | 24 May 2013 | 22 Jun 2016 | British | 58 years |
| Kate Victoria Lawlor | Director | 21 Sept 2018 | 22 Dec 2023 | British | 45 years |
| Keith Thomas Chantler | Director | 18 Sept 2015 | 26 Nov 2018 | British | 75 years |
| Kevin James Crotty | Director | 9 Oct 2017 | 21 Sept 2018 | British | 50 years |
| Luke Georghiou | Director | 28 Jan 2000 | 26 Jan 2010 | British | 71 years |
| Luke Gregory Georghiou | Director | 26 Sept 2014 | 25 Sept 2025 | British | 71 years |
| Lynne Alison Barlow | Director | 23 Oct 2008 | 5 Sept 2012 | British | 60 years |
| Lynne Alison Barlow | Secretary | 24 Jan 2008 | 11 Jan 2010 | British | - |
| Maria Alicia Josephine Guzkowska | Director | 9 Sept 2013 | 15 Jun 2015 | British | 69 years |
| Marianne Mckenzie Green | Director | 26 Jul 2007 | 22 Dec 2009 | British | 72 years |
| Michael Chadwick | Director | 26 Jul 2007 | 12 Apr 2012 | Irish | 75 years |
| Michael Edward Jones | Director | 27 Mar 2014 | 1 Feb 2016 | British | 62 years |
| Michael Gibbons | Director | 14 Aug 1992 | 16 Sept 1992 | Canadian | 87 years |
| Michael John Taylor | Director | 31 Oct 2003 | 20 Oct 2004 | British | 70 years |
| Neil Anthony Hanley | Director | 26 Nov 2018 | 13 Dec 2023 | British | 57 years |
| Neil Russell Swannick | Director | 6 Jul 2001 | 26 Jan 2010 | British | 76 years |
| Neil Taylor Fountain | Director | 14 Aug 1992 | 11 Apr 1997 | British | 80 years |
| Nicholas Harvey Brook | Director | 5 Sept 2022 | 31 Mar 2025 | British | 62 years |
| Paul Antony Dennett | Director | 22 Jun 2016 | 30 Jun 2021 | British | 47 years |
| Paul Leighton | Secretary | 2 Jan 2002 | 6 Jul 2007 | British | - |
| Peter Alfred Payne | Director | 11 Apr 1997 | 14 Apr 2000 | British | 90 years |
| Peter Andrew Crowther | Director | 9 Dec 2021 | 3 Nov 2023 | British | 54 years |
| Peter John Folkman | Director | 3 May 2006 | 12 Apr 2012 | British | 81 years |
| Peter King | Secretary | 21 Apr 1995 | 29 May 1998 | British | - |
| Philip Andrew Kemp | Director | 21 Sept 2018 | 30 Sept 2020 | British | 62 years |
| Rachel Anne Bailey | Director | 22 Jun 2016 | 25 Sept 2019 | English | 70 years |
| Rachel Anne Wilkinson | Director | 1 Oct 2006 | 1 Mar 2010 | British | 61 years |
| Richard Andrew Hall | Director | 26 Jul 2007 | 9 Apr 2008 | British | 68 years |
| Richard Michael Young | Director | 17 Jul 1997 | 15 Oct 1999 | British | 63 years |
| Robin Peter Mcgill Procter | Director | 14 Apr 2000 | 17 Jan 2003 | British | 86 years |
| Roderick Wilson Coombs | Director | 17 Jan 2003 | 26 Sept 2014 | British | 76 years |
| Ronald Edmund Weston | Director | 14 Aug 1992 | 1 Sept 1994 | British | 100 years |
| Rowena May Burns | Director | 12 Apr 2012 | 31 Oct 2020 | British | 73 years |
| Ruby Nighat Yasmin Khan-davies | Director | 14 Aug 1992 | 21 Jul 1995 | British | 69 years |
| Sean Martin Davies | Director | 12 Nov 2014 | 29 Jun 2017 | British | 50 years |
| Stephen Michael Mycio | Director | 15 Jan 2009 | 22 Sept 2011 | British | 73 years |
| Thomas Burns Russell | Director | 11 Jul 1997 | 24 Jan 2008 | British | 74 years |
| Thomas Peter Renn | Director | 22 Jun 2016 | 15 Oct 2021 | British | 41 years |
| Timothy John Harper | Director | 2 May 2008 | 26 Jan 2010 | British | 64 years |
| Vincent Patrick Young | Director | 19 Jul 1996 | 30 Jun 2000 | Jamaican | 100 years |
| Wade Martin | Director | 19 Jul 1996 | 10 Jul 2000 | British | 80 years |
| William Egerton | Director | 14 Aug 1992 | 12 Jul 1993 | British | 82 years |
| William John Townson | Director | 14 Aug 1992 | 12 Apr 2012 | British | 78 years |