| Alastair Bradshaw | Secretary | 16 Dec 2011 | 3 Mar 2014 | - | - |
| Alexandra Dadd | Secretary | 30 Jul 2008 | 30 Jan 2009 | Other | - |
| Andrew Michael Saunders-davies | Director | 28 May 2010 | 23 May 2019 | British | 67 years |
| Anthony Roy Foster | Secretary | 10 Mar 2006 | 15 Feb 2008 | British | - |
| Anthony William Pidgley | Director | 12 Aug 2004 | 26 Jun 2020 | British | 78 years |
| Christopher Hewetson Payne | Director | 15 Mar 2004 | 19 Jan 2005 | British | 66 years |
| Deana Patricia Everingham | Director | 5 Nov 2019 | 31 Mar 2024 | British | 61 years |
| Elaine Anne Driver | Secretary | 3 Mar 2014 | 8 Aug 2016 | - | - |
| Elizabeth Taylor | Secretary | 15 Mar 2004 | 30 Sept 2005 | British | - |
| Gemma Parsons | Secretary | 8 Aug 2016 | 4 May 2018 | - | - |
| Jared Stephen Philip Cranney | Secretary | 4 May 2018 | 21 Oct 2019 | - | - |
| John Justin Brown | Director | 24 Dec 2009 | 25 Feb 2010 | British | 60 years |
| Julian Paul Hodder | Director | 15 Mar 2004 | 24 Dec 2009 | British | 54 years |
| Nicolas Guy Simpkin | Director | 5 Nov 2009 | 23 Sept 2015 | British | 56 years |
| Rameen Firoozan | Director | 28 May 2010 | 31 Dec 2016 | British | 61 years |
| Richard James Stearn | Secretary | 30 Jan 2009 | 16 Dec 2011 | British | - |
| Robert Charles Grenville Perrins | Secretary | 15 Feb 2008 | 30 Jul 2008 | British | - |
| Sean Ellis | Director | 7 Jul 2004 | 19 Jan 2005 | British | 57 years |
| Steven Harrison | Director | 28 May 2010 | 30 Oct 2025 | British | 61 years |
| Timothy John Rodway | Director | 28 May 2010 | 27 Oct 2023 | British | 67 years |
