| David Christopher Harbord | Director | 30 Sept 2016 | 22 Aug 2022 | British | 65 years |
| Gregory Craig Mckenna | Director | 22 May 2024 | 3 Jun 2024 | British | 60 years |
| John Thomas Park | Director | 6 Sept 2024 | 28 Jul 2025 | British | 52 years |
| Julian Michael Pertwee | Director | 19 Aug 2015 | 30 Sept 2016 | British | 62 years |
| Karin Ulrika Wising | Director | 3 Jun 2024 | 18 Dec 2024 | British,swedish | 53 years |
| Mark Edward Thistlethwayte | Director | 15 Sept 2015 | 22 May 2024 | British | 62 years |
| Michael Alexander Smyth-osbourne | Director | 19 Aug 2015 | 30 Sept 2016 | British | 59 years |
| Paul Lambert | Director | 15 Sept 2015 | 22 May 2024 | English | 52 years |
| Paul Roger Bragg | Director | 22 Aug 2022 | 23 May 2024 | British | 56 years |
| Stuart Alexander Thom | Director | 22 May 2024 | 6 Sept 2024 | British | 52 years |
| Timothy Giles Redpath | Director | 19 Aug 2015 | 30 Sept 2016 | British | 61 years |
| Warren Richard Cann | Director | 15 Sept 2015 | 22 May 2024 | British | 55 years |