| Alison Tracey Buttery | Director | 26 Sept 2006 | 12 Oct 2007 | British | 66 years |
| Alison Tracey Buttery | Secretary | 26 Sept 2006 | 12 Oct 2007 | British | - |
| Christopher Bryans | Director | 27 Jul 2009 | 31 Aug 2012 | British | 75 years |
| Claire Louise Cooper Alves | Director | 13 Oct 2000 | 21 Mar 2003 | British | 61 years |
| Daphne Marian Marler | Director | 21 Aug 2008 | 24 Jul 2009 | British | 80 years |
| Daphne Marian Marler | Secretary | 21 Aug 2008 | 24 Jul 2009 | British | - |
| Dermot Francis Woolliscroft | Director | 24 Oct 2007 | 30 Apr 2021 | British | 66 years |
| Douglas George Evans | Director | 28 Sept 2001 | 31 Mar 2006 | British | 64 years |
| Douglas George Evans | Secretary | 28 Sept 2001 | 31 Mar 2006 | British | - |
| Ian Stewart Goulden | Director | 7 Mar 2006 | 19 Dec 2006 | British | 73 years |
| Jane Li | Director | 27 Jul 2009 | 31 Dec 2018 | British | 57 years |
| Jane Li | Secretary | 27 Jul 2009 | 31 Dec 2018 | British | - |
| Jane Sargeant | Director | 30 Oct 2008 | 3 Nov 2008 | British | 57 years |
| Jeremy William Charles Letchford | Director | 15 Aug 1992 | 31 Oct 2000 | British | 76 years |
| John Carpenter | Director | 12 Nov 1993 | 29 Sept 1995 | British | 75 years |
| John Christopher Casey | Director | 11 Sept 2006 | 13 Apr 2011 | British | 69 years |
| John Craig Hunter | Director | 15 Aug 1992 | 25 Aug 2001 | British | 65 years |
| John Craig Hunter | Secretary | 15 Aug 1992 | 20 Mar 1998 | British | - |
| Jonathan Culver Bumstead | Director | 1 Jul 2006 | 31 Aug 2009 | British | 61 years |
| Lizzie Ann Chilcott | Director | 12 Oct 2007 | 21 Aug 2008 | British | 52 years |
| Lizzie Ann Chilcott | Director | 13 Oct 2009 | 24 Feb 2010 | British | 52 years |
| Lizzie Ann Chilcott | Secretary | 12 Oct 2007 | 21 Aug 2008 | British | - |
| Lizzie Ann Chilcott | Secretary | 13 Oct 2009 | 13 Oct 2009 | - | - |
| Lizzie Ann Chilcott | Secretary | 13 Oct 2009 | 13 Oct 2009 | - | - |
| Lizzie Ann Chilcott | Director | 23 Oct 2003 | 26 Sept 2006 | British | 52 years |
| Lizzie Ann Chilcott | Secretary | 28 Apr 2006 | 26 Sept 2006 | British | - |
| Martin Brennan Woolhouse | Director | 15 Aug 1992 | 27 Feb 1998 | British | 73 years |
| Nicholas Andrew Macdonald Sandison | Director | 23 Oct 2013 | 26 Nov 2018 | British | 56 years |
| Peter David Trawny | Director | 26 Nov 2018 | 30 Apr 2021 | British | 58 years |
| Ray Martin | Director | 28 Aug 2009 | 20 Jan 2012 | British | 65 years |
| Sarah Louise Hughes | Director | 8 Nov 2004 | 28 Oct 2005 | British | 54 years |
| Stephanie Helen Coffey | Director | 5 Apr 2002 | 28 Apr 2006 | British | 58 years |
| Timothy Fallowfield | Director | 6 Feb 1997 | 28 Sept 2001 | British | 63 years |
| Timothy Fallowfield | Secretary | 20 Mar 1998 | 28 Sept 2001 | British | - |
| Valerie Elizabeth Corrigan | Director | 15 Aug 1992 | 30 Dec 2005 | British | 76 years |
| Vari Isabel Cameron | Director | 7 Mar 2015 | 8 Apr 2019 | British | 65 years |