| Abigail Sarah Draper | Director | 11 Mar 2022 | 31 Mar 2025 | British | 56 years |
| Anthony Charles Erik Kent | Director | 1 Sept 2010 | 11 Mar 2022 | British | 79 years |
| Catherine Mary Williamson | Director | 19 Jun 2018 | 11 Mar 2022 | Scottish | 48 years |
| Graham Richard Provest | Director | 18 Jan 2017 | 17 May 2018 | British | 60 years |
| John Mark Nicholas Newall | Director | 14 Sept 2010 | 11 Mar 2022 | British | 65 years |
| Mark Nicholas Newall | Secretary | 6 Aug 2007 | 14 Sept 2010 | United Kingdom | - |
| Moira Nimmo | Secretary | 14 Sept 2010 | 7 Aug 2011 | - | - |
| Moira Nimmo | Secretary | 1 Sept 2011 | 2 Sept 2011 | - | - |
| Moira Nimmo | Secretary | 14 Sept 2010 | 18 Jun 2014 | - | - |
| Moira Nimmo | Director | 1 Sept 2011 | 18 Jun 2014 | British | 62 years |
| Richard Newall | Director | 6 Aug 2007 | 31 Mar 2012 | British | 69 years |
| Stephen William Thomson | Director | 1 Apr 2021 | 20 Aug 2021 | British | 54 years |
| Terence Martin Doherty | Director | 21 Apr 2011 | 12 Dec 2011 | British | 54 years |
| Terence Martin Doherty | Director | 24 Feb 2012 | 18 Jun 2014 | British | 54 years |
| Tom Mark Newall | Director | 12 Apr 2013 | 10 Sept 2024 | British | 40 years |
