| Alastair Bradshaw | Secretary | 16 Dec 2011 | 3 Mar 2014 | - | - |
| Alexandra Dadd | Secretary | 30 Jul 2008 | 30 Jan 2009 | Other | - |
| Andrew Michael Saunders-davies | Director | 31 Jan 2014 | 23 May 2019 | British | 67 years |
| Anthony Roy Foster | Secretary | 26 Jan 2006 | 15 Feb 2008 | British | - |
| Anthony William Pidgley | Director | 23 Mar 2015 | 26 Jun 2020 | British | 78 years |
| Benjamin James Marks | Director | 16 Dec 2011 | 14 May 2014 | British | 48 years |
| Charles Richard Lowe | Director | 20 Sept 2018 | 28 Jun 2019 | British | 41 years |
| Deana Patricia Everingham | Director | 20 Sept 2018 | 31 Mar 2024 | British | 61 years |
| Elaine Anne Driver | Secretary | 3 Mar 2014 | 8 Aug 2016 | - | - |
| Elizabeth Taylor | Secretary | 4 Mar 2005 | 30 Sept 2005 | British | - |
| Gemma Parsons | Secretary | 8 Aug 2016 | 4 May 2018 | - | - |
| Jared Stephen Philip Cranney | Secretary | 4 May 2018 | 21 Oct 2019 | - | - |
| Matthew David Biddle | Director | 27 Jul 2015 | 31 Jan 2020 | British | 56 years |
| Nicolas Guy Simpkin | Director | 15 Jan 2010 | 23 Sept 2015 | British | 56 years |
| Richard Douglas Palmer | Director | 31 Jan 2014 | 31 Aug 2015 | British | 53 years |
| Richard James Stearn | Director | 4 Mar 2005 | 16 Dec 2011 | British | 57 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 | 4 Mar 2005 | 31 Jul 2007 | British | 78 years |
| Steven Harrison | Director | 9 Oct 2019 | 30 Oct 2025 | British | 61 years |
| Timothy John Rodway | Director | 31 Jan 2014 | 27 Oct 2023 | British | 67 years |
