| Alastair Bradshaw | Secretary | 16 Dec 2011 | 3 Mar 2014 | - | - |
| Alexandra Dadd | Secretary | 30 Jul 2008 | 30 Jan 2009 | Other | - |
| Ann Marie Dibben | Secretary | 16 Jan 2023 | 10 Apr 2024 | - | - |
| Anthony Roy Foster | Secretary | 27 Mar 2006 | 15 Feb 2008 | British | - |
| Anthony William Pidgley | Director | 4 Sept 2008 | 26 Jun 2020 | British | 78 years |
| Elaine Anne Driver | Secretary | 3 Mar 2014 | 8 Aug 2016 | - | - |
| Gemma Parsons | Secretary | 8 Aug 2016 | 4 May 2018 | - | - |
| 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 | Director | 27 Mar 2006 | 12 Jul 2010 | 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 | 27 Mar 2006 | 31 Jul 2007 | British | 78 years |
