| Alan Gerald Joslin | Director | 13 Oct 2003 | 31 Dec 2005 | British | 68 years |
| Allan Rex Bartles-smith | Director | 1 Jan 1995 | 31 Dec 1996 | British | 87 years |
| Charles Bennett Brown | Secretary | 1 Mar 1999 | 26 May 2000 | British | - |
| Charles De Liedekerke | Director | 16 Mar 1998 | 10 Mar 2004 | Belgian | 73 years |
| Christopher Arthur Leese | Director | 3 Oct 2003 | 15 Jan 2013 | British | 65 years |
| Daphne Margaret Murray | Secretary | 15 Jan 2013 | 30 Jun 2018 | - | - |
| David Connal Cather | Director | 26 Apr 1992 | 18 Mar 1994 | British | 67 years |
| David Richard Swinson | Director | 1 Jan 1996 | 31 Jul 2000 | British | 84 years |
| Dean Welburn | Director | 31 May 2006 | 30 Nov 2007 | British | 66 years |
| Derek Michael John Odonnell | Director | 1 Apr 2009 | 15 Jan 2013 | Irish | 62 years |
| Dyfrig Morgan James | Director | 15 Mar 1996 | 16 Jan 2008 | British | 72 years |
| Emma Jayne Ashenden | Secretary | 25 Jan 2021 | 2 Feb 2023 | - | - |
| Frank James Standish | Secretary | 26 May 2000 | 31 Jul 2000 | British | - |
| George Richard Phillipson | Director | 26 Apr 1992 | 14 Mar 1997 | British | 87 years |
| Graham Edward Clark | Director | 1 Jan 1997 | 13 Apr 2000 | British | 71 years |
| Ian Maclean Reid | Director | 26 Apr 1992 | 27 May 2003 | British | 81 years |
| Jaime Muguiro Dominguez | Director | 31 Jul 2007 | 6 Mar 2008 | Spanish | 58 years |
| James Stuart Napier | Director | 31 Dec 2005 | 31 Jul 2007 | British | 57 years |
| Jason Alexander Smalley | Director | 21 Aug 2012 | 22 Oct 2016 | British | 57 years |
| Jeremy Michael Greenwood | Director | 29 Jun 2004 | 17 Jun 2011 | British | 60 years |
| Jesus Saenz Gonzalez | Director | 6 Mar 2008 | 1 Apr 2009 | Mexican | 58 years |
| John Brian Cooper | Director | 26 Apr 1992 | 31 Dec 1994 | British | 94 years |
| John Camden | Director | 26 Apr 1992 | 30 Apr 1993 | British | 101 years |
| Jonathan Charles Bennett Houlton | Director | 14 Mar 1997 | 16 Mar 1998 | British | 65 years |
| Juan Ramon Lopez | Director | 20 Feb 2009 | 15 Jan 2013 | British | 58 years |
| Julie Dawn Millburn | Director | 1 Nov 2008 | 17 Jun 2011 | British | 55 years |
| Kevin Michael Hayman | Director | 6 Aug 2008 | 20 Feb 2009 | British | 66 years |
| Kevin Michael Hayman | Director | 20 Aug 2010 | 15 Jan 2013 | British | 66 years |
| Larry Jose Zea Betancourt | Director | 21 Sept 2011 | 1 Oct 2019 | Venezuelan | 65 years |
| Luis Guillermo Franco Carrillo | Director | 30 Nov 2007 | 20 Aug 2010 | Mexican | 51 years |
| Malcolm Whittle | Director | 1 Nov 2009 | 17 Jun 2011 | British | 79 years |
| Marcus Gabriel Rappensberger | Director | 31 Oct 2007 | 15 Jan 2013 | British | 61 years |
| Michael Alan Ogden | Director | 31 Oct 2004 | 31 Oct 2007 | British | 72 years |
| Michael George Foster | Director | 13 Apr 2000 | 31 Oct 2004 | British | 73 years |
| Michael John Halling | Director | 30 Apr 1993 | 3 Oct 2003 | British | 79 years |
| Michael Leslie Collins | Director | 22 Apr 2010 | 20 Aug 2010 | British | 70 years |
| Michael Leslie Collins | Secretary | 31 Jul 2000 | 15 Jan 2013 | British | - |
| Narinder Nath Kalia | Secretary | 26 Apr 1992 | 1 Mar 1999 | British | - |
| Paul Ashley Trow | Director | 31 Dec 2005 | 31 May 2006 | British | 76 years |
| Peter John Tyrrell | Director | 26 Apr 1992 | 1 Feb 1995 | British | 80 years |
| Peter Lance Young | Director | 18 Mar 1994 | 31 Dec 1995 | British | 88 years |
| Peter Richard Deering | Director | 16 Jan 2008 | 1 Nov 2008 | British | 69 years |
| Peter William John Tallon | Director | 18 Mar 1994 | 13 Feb 1996 | British | 77 years |
| Precel James Owen | Director | 26 Apr 1992 | 19 Mar 1994 | British | 96 years |
| Raymond Alfred Elliott | Director | 12 Oct 2004 | 16 Mar 2005 | British | 79 years |
| Rebecca Juliet Wright | Secretary | 30 Jun 2018 | 25 Jan 2021 | - | - |
| Richard Mark Sykes | Director | 27 May 2003 | 13 Aug 2004 | British | 65 years |
| Roy Edward Lewis | Director | 1 Feb 1995 | 1 Apr 2001 | British | 78 years |
| Stephen Robert King | Director | 31 Jul 2000 | 13 Oct 2003 | British | 70 years |
| Thomas John Corkery | Director | 1 Apr 2001 | 31 Dec 2005 | Irish | 64 years |
| Timothy John Onions | Director | 16 Mar 2005 | 17 Jun 2011 | British | 68 years |