| Adrian James Henry Ewer | Director | 26 Oct 1995 | 1 May 2001 | British | 73 years |
| Adrian Shooter | Director | 26 Oct 1999 | 19 Dec 2011 | British | 78 years |
| Alan Robert Chaney | Director | 29 Jan 1996 | 26 Feb 2008 | British | 83 years |
| Andrew Erskine Friend | Director | 1 Aug 2000 | 8 Sept 2006 | British | 74 years |
| Anthony Bruce Cornwell | Director | 29 Jan 1996 | 23 Nov 1998 | British | 83 years |
| Anthony Charles Roper | Director | 14 Dec 2005 | 15 Mar 2006 | British | 66 years |
| Anthony Douglas Allen | Director | 26 Oct 1999 | 11 Jul 2002 | British | 77 years |
| Anthony Douglas Allen | Director | 18 Sept 2006 | 26 Aug 2012 | British | 77 years |
| Brian John Payne | Director | 6 Jul 1995 | 26 Oct 1995 | British | 82 years |
| Catherine Edwina Proctor | Director | 8 Sept 2005 | 31 Jul 2007 | British | 57 years |
| Christoph Djazirian | Director | 16 Apr 2008 | 31 Dec 2010 | German | 56 years |
| David James Penney | Director | 25 Nov 2015 | 31 Dec 2019 | British | 51 years |
| David Robert Martin | Director | 31 Dec 2010 | 27 Jan 2014 | British | 75 years |
| Derek Potts | Director | 28 Mar 2002 | 14 Dec 2005 | British | 68 years |
| Derek William Featherstone | Secretary | 26 Oct 1995 | 1 Nov 1999 | British | - |
| Dirk Thater | Director | 31 Mar 2008 | 31 Dec 2010 | German | 60 years |
| Duncan Thomas Rimmer | Director | 21 May 2012 | 4 Oct 2016 | British | 54 years |
| Frank Sennhenn | Director | 31 Mar 2008 | 31 Dec 2010 | German | 63 years |
| Ian Joseph Wells | Director | 1 Aug 2000 | 11 Jul 2002 | British | 75 years |
| James Richard Samuel Morris | Director | 26 Oct 1999 | 7 Apr 2003 | British | 101 years |
| John Graeme Nelson | Director | 11 Jul 2002 | 11 Sept 2006 | British | 79 years |
| Karsten Nagel | Director | 31 Mar 2008 | 31 Dec 2010 | German | 60 years |
| Lorna Edwards | Secretary | 1 Apr 2014 | 12 Jun 2020 | - | - |
| Manfred Rudhart | Director | 31 Mar 2008 | 31 Dec 2010 | German | 61 years |
| Mark Beckett | Director | 11 Jul 2002 | 16 Oct 2006 | British | 59 years |
| Mark Charles Hugh Orkell Alexander | Director | 15 Mar 2004 | 17 Nov 2006 | British | 68 years |
| Mary Elisabeth Courtney Hewitt | Director | 1 Jan 2020 | 5 Oct 2020 | British | 47 years |
| Maureen Anne Childs | Director | 6 Jul 1995 | 26 Oct 1995 | British | 90 years |
| Maureen Anne Childs | Secretary | 6 Jul 1995 | 26 Oct 1995 | British | - |
| Michael Geoffrey Medlicott | Director | 16 May 2006 | 21 Jan 2008 | British | 83 years |
| Peter Geoffrey Shell | Secretary | 12 Apr 2002 | 23 Mar 2007 | British | - |
| Richard Aubrey Johnson | Director | 15 Jul 2019 | 1 Feb 2022 | British | 53 years |
| Richard Graham Allan | Director | 5 Oct 2020 | 1 Feb 2022 | British | 53 years |
| Robert William Brighouse | Director | 11 Jul 2002 | 18 Dec 2015 | British | 69 years |
| Robert William Holland | Director | 31 Dec 2010 | 1 Jan 2013 | British | 76 years |
| Roger Keith Miller | Secretary | 1 Nov 1999 | 12 Apr 2002 | British | - |
| Roger Keith Miller | Secretary | 23 Mar 2007 | 31 Mar 2008 | British | - |
| Stephen John Murphy | Director | 31 Mar 2008 | 24 Mar 2014 | British | 57 years |
| Stephen John Murphy | Director | 11 Jul 2002 | 3 May 2004 | British | 57 years |
| Steven Proctor | Director | 9 Jul 2007 | 31 Mar 2008 | British | 58 years |
| Ulrich Homburg | Director | 31 Mar 2008 | 10 Sept 2009 | German | 71 years |
| William Giles Russell Davies | Director | 12 Sept 2002 | 22 Apr 2004 | British | 76 years |
| William Giles Russell Davies | Secretary | 31 Mar 2008 | 1 Apr 2014 | British | - |