| Alastair Bradshaw | Secretary | 16 Dec 2011 | 3 Mar 2014 | - | - |
| Alexander Nigel Mcarthur | Secretary | 1 Aug 1997 | 7 Sept 1998 | British | - |
| Alexandra Dadd | Secretary | 30 Jul 2008 | 30 Jan 2009 | Other | - |
| Anthony Roy Foster | Secretary | 27 Jan 2006 | 15 Feb 2008 | British | - |
| Anthony William Pidgley | Director | 1 Aug 1997 | 26 Jun 2020 | British | 78 years |
| Benjamin James Marks | Secretary | 16 Dec 2011 | 16 Dec 2011 | - | - |
| Claire Booth | Director | 7 Sept 1998 | 7 Sept 1998 | British | 59 years |
| Claire Puttergill | Secretary | 7 Sept 1998 | 17 Oct 2003 | British | - |
| David Phillips | Director | 1 Aug 1997 | 18 Jun 2003 | British | 65 years |
| David Tobutt | Director | 18 Jun 2003 | 16 Mar 2004 | British | 70 years |
| Elaine Anne Driver | Secretary | 3 Mar 2014 | 8 Aug 2016 | - | - |
| Elizabeth Taylor | Secretary | 1 Feb 2004 | 30 Sept 2005 | British | - |
| Gemma Parsons | Secretary | 8 Aug 2016 | 4 May 2018 | - | - |
| Howard Thomas | Nominee Secretary | 2 Jul 1997 | 1 Aug 1997 | British | - |
| Jared Stephen Philip Cranney | Secretary | 4 May 2018 | 21 Oct 2019 | - | - |
| Nicolas Guy Simpkin | Director | 5 Nov 2009 | 23 Sept 2015 | British | 56 years |
| Richard James Stearn | Secretary | 30 Jan 2009 | 16 Dec 2011 | British | - |
| Robert Charles Grenville Perrins | Secretary | 15 Feb 2008 | 30 Jul 2008 | British | - |
| Roger St John Hulton Lewis | Director | 1 Aug 1997 | 31 Jul 2007 | British | 78 years |
| Wendy Joan Pritchard | Secretary | 7 Jan 2004 | 1 Feb 2004 | British | - |
| William Andrew Joseph Tester | Nominee Director | 2 Jul 1997 | 1 Aug 1997 | British | 63 years |
| William Nigel Hugill | Director | 1 Aug 1997 | 18 Jun 2003 | British | 67 years |
