| Charles Henry Knight | Director | 21 May 2015 | 16 Sept 2025 | British | 59 years |
| David James Reynolds | Director | 21 May 2015 | 20 May 2019 | British | 43 years |
| Hannah Elizabeth Mccarthy | Director | 1 Nov 2024 | 16 Sept 2025 | British | 45 years |
| John Michael Dean | Director | 21 May 2015 | 5 Sept 2019 | British | 86 years |
| Leopold Sinclair Tetley Hall | Director | 18 May 2015 | 5 Dec 2018 | British | 41 years |
| Michael Andrew Charles Prideaux | Director | 18 May 2015 | 16 Sept 2025 | British | 54 years |
| Oliver Smith | Director | 20 May 2019 | 16 Sept 2025 | British | 58 years |
| Richard John Reddyhoff | Director | 21 May 2015 | 30 Jun 2023 | British | 73 years |