| Alan Alexander Calder | Director | 7 Oct 2010 | 1 Dec 2016 | British | 67 years |
| Alan Christopher Harper | Director | 22 Mar 1993 | 9 Jun 1995 | British | 75 years |
| Alan Roy Hawkins | Director | 11 Jun 1997 | 1 Jun 1999 | British | 72 years |
| Alastair Cockburn Hay | Director | 7 Oct 2010 | 2 Nov 2012 | Scottish | 64 years |
| Amanda Mary O'brien | Director | 6 Apr 1994 | 5 Jun 1997 | British | 59 years |
| Andrew Edward Charles Scott | Director | 28 Jul 1995 | 5 Jun 1997 | British | 59 years |
| Andrew James Nicholson | Director | 30 Aug 2011 | 9 Jan 2014 | British | 52 years |
| Angela Mary Cunningham | Director | 20 Apr 2004 | 19 Jan 2011 | British | 64 years |
| Ann Susan Williams | Director | 12 Dec 1992 | 9 Mar 1994 | British | 72 years |
| Ann Susan Williams | Director | 25 Apr 1994 | 1 Apr 2010 | British | 72 years |
| Anthony Francis Geach | Director | 6 Apr 1994 | 5 Jun 1997 | British | 70 years |
| Antoinette Una Moriarty | Director | 1 Aug 1997 | 20 Apr 2004 | British | 59 years |
| Barbara Charlotte Wallace | Secretary | 5 Feb 2010 | 30 Aug 2011 | - | - |
| Barbara Charlotte Wallace | Director | 11 Feb 2011 | 30 Aug 2011 | British | 55 years |
| Brian James Willmott | Director | 28 Jul 1995 | 5 Jun 1997 | British | 60 years |
| Brian Pemberton | Director | 2 Aug 2012 | 27 Nov 2019 | British | 60 years |
| Carolyn Jean Whittaker | Secretary | 20 Apr 2004 | 23 Nov 2005 | Other | - |
| Carolyn Smith | Director | 19 Jan 2000 | 30 Mar 2001 | British | 54 years |
| Christine Anne Russell | Secretary | 30 Aug 2011 | 27 Jul 2012 | - | - |
| Colin Campbell Reed | Director | 22 Mar 1993 | 9 Jun 1995 | Scottish | 73 years |
| Craig Ferguson Bowie | Director | 12 Apr 2017 | 21 Apr 2021 | British | 62 years |
| Elizabeth Jayne Marshall | Director | 24 Jun 1997 | 8 Jul 1998 | British | 64 years |
| Frances Lynn Hughes | Director | 2 Aug 2012 | 14 Dec 2016 | British | 67 years |
| Gary Robert Mcneilly Stewart | Director | 29 Feb 2008 | 11 Feb 2011 | British | 60 years |
| Gordon Robert Allan | Director | 12 Dec 1992 | 28 Jul 1995 | British | 65 years |
| Howard Nicholas Jenkins | Director | 13 Jan 2010 | 20 Nov 2013 | British | 65 years |
| Iain Thomas Wardhaugh | Director | 11 Sept 2014 | 25 Mar 2022 | British | 64 years |
| Ian Rogan Sharpe | Director | 11 Sept 2014 | 20 Oct 2019 | British | 66 years |
| Jacqueline Louise Mason | Director | 12 Dec 1992 | 12 Dec 1993 | British | 65 years |
| James Anthony Jackson | Director | 11 Feb 2011 | 17 Apr 2012 | British | 59 years |
| James Duncan | Director | 16 Aug 1995 | 16 Sept 1996 | British | 67 years |
| James Forbes Clark | Director | 12 Dec 1992 | 25 Mar 1994 | British | 63 years |
| Jane Mccabe | Director | 11 Jun 1997 | 8 May 1998 | British | 65 years |
| John Albert Lea | Director | 12 Dec 1992 | 20 Apr 2004 | British | 75 years |
| John Albert Lea | Secretary | 12 Dec 1992 | 20 Apr 2004 | British | - |
| John Charles Stubberfield | Director | 12 Dec 1992 | 18 Nov 2009 | British | 77 years |
| John Storey | Director | 26 Jul 1994 | 1 Feb 1999 | British | 79 years |
| Johnny Stephens | Director | 5 Sept 1996 | 7 Aug 1997 | British | 76 years |
| Jonathan Hedgecock | Director | 2 Aug 2012 | 21 Nov 2024 | British | 54 years |
| Joseph Sanderson | Director | 12 Apr 2017 | 20 Nov 2024 | British | 52 years |
| Karen Elizabeth Davies | Director | 14 Sept 2015 | 31 May 2022 | British | 61 years |
| Kenneth William Crawford | Director | 12 Dec 1992 | 18 Feb 1994 | British | 63 years |
| Kevin James Davies | Director | 11 Jun 1997 | 19 Oct 1998 | British | 65 years |
| Lawrence James Ladbrook | Director | 31 May 2022 | 23 Feb 2023 | British | 59 years |
| Lee Alan Betney | Director | 8 Jul 1998 | 1 Feb 1999 | British | 60 years |
| Linda Mary Wynn | Director | 19 Oct 1998 | 1 Feb 1999 | British | 78 years |
| Marc Wood | Director | 14 Sept 2015 | 2 Dec 2015 | British | 50 years |
| Marcos Castro | Secretary | 23 Nov 2005 | 1 Aug 2008 | Other | - |
| Mark Christopher Croman | Director | 18 Dec 2024 | 1 Aug 2025 | British | 52 years |
| Michael Joseph Nugent | Director | 12 Dec 1992 | 9 Jun 1995 | British | 83 years |
| Michelle Rosetta Friend | Director | 2 Aug 2012 | 7 Nov 2014 | British | 46 years |
| Neil Clark Macarthur | Director | 29 Feb 2008 | 11 Feb 2011 | British | 59 years |
| Nichola Ewen | Director | 15 Dec 1992 | 9 Jun 1994 | British | 64 years |
| Pamela Jane Layzell | Director | 11 Jun 1997 | 3 Feb 1998 | British | 59 years |
| Paulene Mcgarry | Director | 7 Sept 1995 | 5 Jun 1997 | British | 66 years |
| Penelope Ann Strugnell | Director | 12 Dec 1992 | 1 Aug 1997 | British | 61 years |
| Peter David Christmas | Director | 13 Apr 2017 | 31 May 2022 | British | 63 years |
| Peter William Martin | Director | 10 Feb 2003 | 27 Sept 2015 | British | 70 years |
| Philip Arthur Goulds | Director | 12 Dec 1992 | 5 Jun 1997 | British | 71 years |
| Philip Arthur Goulds | Director | 8 Jul 1998 | 1 Feb 1999 | British | 71 years |
| Richard Frederick William Parker | Director | 7 Oct 2010 | 18 Jun 2015 | British | 59 years |
| Richard James Hopkins | Director | 20 Apr 2004 | 28 Feb 2008 | British | 68 years |
| Richard Mackie | Director | 9 Nov 2004 | 18 Nov 2009 | British | 69 years |
| Robyn Fay Beresford | Secretary | 1 Aug 2008 | 5 Feb 2010 | Other | - |
| Russell John Greenwood | Director | 13 Jan 2010 | 15 May 2015 | British | 60 years |
| Sally Jane Sutherland | Director | 17 Apr 2012 | 9 Jan 2014 | British | 59 years |
| Sarah Jane Adams | Director | 8 Jul 1998 | 1 Feb 1999 | British | 61 years |
| Simon Andrew Wright | Director | 14 Sept 2015 | 20 Oct 2019 | British | 63 years |
| Simon Christopher Dare | Director | 1 Oct 1997 | 19 Jan 2000 | British | 67 years |
| Simon Gary Coleman | Director | 12 Dec 1992 | 18 Feb 1994 | British | 62 years |
| Simon Nicholas Hughes | Director | 26 Jul 1994 | 1 Feb 1999 | British | 60 years |
| Stephen Anthony Lowe | Director | 6 Apr 1994 | 5 Jun 1997 | British | 61 years |
| Stephen William Davies | Director | 18 Feb 1994 | 28 Nov 1994 | British | 59 years |
| Steven Short | Director | 10 Feb 2003 | 4 Apr 2014 | British | 58 years |