| Colin Caldwell | Secretary | 4 Dec 2019 | 2 Apr 2020 | - | - |
| David Alexander John Foot | Director | 25 Oct 2018 | 2 Apr 2020 | British | 57 years |
| David Anthony Williams | Director | 7 Dec 2017 | 2 Apr 2020 | British | 43 years |
| Duncan John Lucas Bates | Director | 4 Jan 2016 | 21 Sept 2016 | British | 67 years |
| Duncan John Lucas Bates | Director | 7 Sept 2017 | 2 Apr 2020 | British | 67 years |
| Euan William Mitchell | Secretary | 2 Apr 2020 | 30 Sept 2024 | - | - |
| Helen Lucy Gillett | Director | 21 Sept 2016 | 2 Apr 2020 | British | 53 years |
| Helen Mary Murphy | Director | 7 Dec 2017 | 25 Oct 2018 | Irish | 44 years |
| Helen Mary Murphy | Director | 17 Oct 2019 | 2 Apr 2020 | Irish | 44 years |
| Huw Iolo Morris | Director | 2 Apr 2020 | 30 May 2023 | British | 60 years |
| Marc Maria Van't Noordende | Director | 8 Dec 2016 | 19 May 2017 | Dutch | 67 years |
| Maria Georgina Dellacha | Director | 21 Sept 2016 | 19 May 2017 | British | 50 years |
| Michael Patrick Calabrese | Director | 4 Jan 2016 | 21 Sept 2016 | Italian | 56 years |
| Neeti Mukundrai Anand | Director | 25 Oct 2018 | 17 Oct 2019 | British | 41 years |
| Rachel Louise Turnbull | Director | 27 Feb 2018 | 25 Oct 2018 | British | 47 years |
| Simon Cocks | Director | 21 Sept 2016 | 27 Mar 2018 | British | 60 years |
| Tim John William Monod | Secretary | 4 Jan 2016 | 6 Nov 2019 | - | - |
| Yacine Saidji | Director | 21 Sept 2016 | 8 Dec 2016 | Swiss | 49 years |