| Amelia Mary Bright | Director | 7 Jul 2017 | 22 Oct 2020 | British | 40 years |
| Amelia Mary Bright | Director | 1 Jul 2021 | 11 Mar 2022 | British | 40 years |
| Amelia Mary Bright | Director | 10 Oct 2022 | 12 Dec 2024 | British | 40 years |
| Anna Clare Bond | Director | 21 May 2018 | 23 Aug 2019 | British | 45 years |
| Caroline Frances King | Director | 6 Nov 2013 | 19 Nov 2013 | British | 61 years |
| Catherine Susan Stevenson | Director | 28 Apr 2016 | 7 Jul 2017 | British | 43 years |
| Chantal Antonia Henderson | Director | 17 Oct 2014 | 31 Dec 2019 | British | 51 years |
| Chantal Antonia Henderson | Director | 1 Jul 2020 | 3 Nov 2025 | British | 51 years |
| Craig David Mcwilliam | Director | 19 Nov 2013 | 10 Jan 2020 | English | 54 years |
| Deborah Clare Lee | Director | 1 Apr 2022 | 10 Oct 2022 | British | 50 years |
| Derek John Lewis | Secretary | 7 Jun 2018 | 31 Mar 2022 | - | - |
| Douglas Nigel Crichton | Director | 28 Apr 2016 | 31 Dec 2019 | British | 50 years |
| Harry Alexander Chamberlayne | Director | 1 Dec 2022 | 31 Dec 2024 | British | 42 years |
| James Gilles Raynor | Director | 30 Sept 2019 | 30 Jun 2020 | British | 53 years |
| Joanna Helen Archibald | Director | 1 Dec 2022 | 7 Oct 2025 | British | 41 years |
| Jorge Emanuel Mendonca | Director | 28 Apr 2016 | 21 May 2018 | British | 63 years |
| Jorge Emanuel Mendonca | Director | 1 Jul 2020 | 26 Oct 2020 | British | 63 years |
| Katharine Emma Robinson | Secretary | 21 Feb 2017 | 7 Jun 2018 | - | - |
| Keith John Bailey | Director | 28 Apr 2016 | 31 Aug 2020 | British | 47 years |
| Paul Francis O'grady | Director | 7 Jul 2017 | 31 Dec 2019 | British | 41 years |
| Paul Francis O'grady | Director | 1 Dec 2022 | 20 Oct 2023 | British | 41 years |
| Peter Sean Vernon | Director | 28 Apr 2016 | 31 Dec 2016 | British | 67 years |
| Piers Maxwell Townley | Director | 1 Sept 2020 | 30 Nov 2022 | British | 46 years |
| Richard Alexander Jefferies | Director | 28 Apr 2016 | 31 Dec 2019 | British | 63 years |
| Roger Frederick Crawford Blundell | Director | 28 Apr 2016 | 30 Jun 2020 | British | 64 years |
| Simon Geoffrey Harding-roots | Director | 28 Apr 2016 | 31 Dec 2019 | British | 58 years |
| Stephanie Frances Ball | Director | 16 Dec 2020 | 31 Dec 2021 | British | 45 years |
| William Robert Bax | Director | 19 Nov 2013 | 1 Jun 2018 | British | 48 years |