| Alastair James Gordon-stewart | Director | 25 Jan 2016 | 24 Sept 2018 | British | 53 years |
| Amanda Jane Emilia Massie | Secretary | 13 Aug 2012 | 8 Mar 2013 | - | - |
| Anoop Kang | Director | 8 Jun 2015 | 25 Jan 2016 | British | 51 years |
| Bethan Melges | Secretary | 12 Nov 2015 | 9 Sept 2019 | - | - |
| Clive Thomas | Director | 21 May 2020 | 17 Nov 2022 | British | 59 years |
| David James Buchanan Shearer | Director | 20 Aug 2012 | 20 Mar 2014 | British | 66 years |
| David James Wright | Director | 26 Jan 2016 | 30 Sept 2019 | British | 66 years |
| David Neville Benson | Director | 8 Jun 2015 | 9 Oct 2015 | British | 55 years |
| David Noel Christopher Garman | Director | 29 Apr 2014 | 8 Jun 2015 | British | 74 years |
| Giuseppe Incutti | Director | 30 Sept 2019 | 27 May 2020 | British | 55 years |
| Grant Rumbles | Director | 13 Aug 2012 | 8 Jun 2015 | British | 67 years |
| Helen Julia Samuels | Director | 19 Feb 2021 | 18 Mar 2022 | British | 55 years |
| Helen Kathryn Marsh | Secretary | 15 Sept 2014 | 12 Nov 2015 | - | - |
| Ian Barnet Duncan | Director | 31 Jan 2013 | 8 Jun 2015 | British | 64 years |
| Marcus Faughey Jones | Director | 25 Jan 2016 | 21 Aug 2019 | British | 55 years |
| Mark Whittaker | Director | 21 May 2020 | 23 Feb 2021 | British | 50 years |
| Michael Makepeace Eugene Jeffries | Director | 1 May 2013 | 8 Jun 2015 | British | 81 years |
| Paul Adrian Rayner | Secretary | 8 Aug 2013 | 15 Sept 2014 | - | - |
| Paul Adrian Rayner | Director | 31 Jan 2013 | 8 Jun 2015 | British | 64 years |
| Paul England | Secretary | 27 Mar 2013 | 8 Aug 2013 | - | - |
| Philip Higgins | Secretary | 9 Sept 2019 | 24 Sept 2021 | - | - |
| Rodney Hewer Harris | Director | 13 Aug 2012 | 25 Jan 2013 | British | 64 years |
| Steven Philip Van Raalte | Director | 16 Nov 2022 | 30 Jul 2024 | British | 43 years |