| Andrew James Doyle | Director | 12 Dec 2016 | 31 Dec 2019 | British | 47 years |
| Andrew Mark Griffith | Director | 12 Dec 2016 | 30 Nov 2019 | British | 48 years |
| Anna Clare Bond | Director | 1 Jul 2020 | 14 Jan 2022 | British | 45 years |
| Anna Clare Bond | Director | 1 Dec 2022 | 5 Apr 2024 | British | 45 years |
| Chantal Antonia Henderson | Director | 10 Aug 2015 | 31 Dec 2019 | British | 51 years |
| Christopher James Jukes | Director | 5 Sept 2019 | 31 Dec 2019 | British | 48 years |
| Christopher James Jukes | Director | 1 Jul 2020 | 30 Nov 2022 | British | 48 years |
| Craig David Mcwilliam | Director | 28 Apr 2016 | 10 Jan 2020 | British | 54 years |
| David John Yaldron | Director | 23 Nov 2015 | 28 Apr 2017 | British | 52 years |
| Deborah Clare Lee | Director | 28 Apr 2016 | 5 Sept 2019 | British | 50 years |
| Derek John Lewis | Secretary | 7 Jun 2018 | 6 Sept 2021 | - | - |
| Heather Caryn Topel | Director | 16 Dec 2020 | 26 Jan 2024 | British,american | 48 years |
| James Gilles Raynor | Director | 1 Jan 2020 | 30 Jun 2020 | British | 53 years |
| Jorge Emanuel Mendonca | Director | 1 Jan 2020 | 30 Jun 2020 | British | 63 years |
| Karl Robert Winkler | Director | 12 Dec 2016 | 15 Dec 2017 | British | 63 years |
| Katharine Emma Robinson | Secretary | 10 Aug 2015 | 7 Jun 2018 | - | - |
| Mark Richard Curry | Director | 12 Dec 2016 | 29 Sept 2017 | British | 49 years |
| Michael Costadinos Lytrides | Director | 21 May 2018 | 31 Dec 2019 | British | 57 years |
| Michelle Kite | Director | 17 Jan 2022 | 30 Nov 2022 | British | 61 years |
| Peter Sean Vernon | Director | 10 Aug 2015 | 31 Dec 2016 | British | 67 years |
| Rachel Dickie | Director | 20 May 2024 | 31 Mar 2025 | British | 42 years |
| Richard Ian Powell | Director | 23 Nov 2015 | 28 Apr 2016 | British | 58 years |
| Roger Frederick Crawford Blundell | Director | 10 Aug 2015 | 25 Nov 2022 | British | 64 years |
| Simon Geoffrey Harding-roots | Director | 4 Apr 2016 | 30 Jun 2020 | British | 58 years |
| Thomasin Renshaw | Director | 12 Dec 2016 | 31 Dec 2019 | British | 48 years |
| Ulrike Schwarz-runer | Director | 22 Jul 2015 | 28 Apr 2016 | Austrian | 55 years |
| William Robert Bax | Director | 5 Jan 2017 | 1 Jun 2018 | British | 48 years |