| Alexandra Kathleen Pringle | Director | 30 Apr 2024 | 9 Oct 2025 | British | 33 years |
| Andrew Thomas Rendel | Director | 15 Jan 2025 | 13 Jun 2025 | British | 41 years |
| Benjamin John Rosewall | Director | 22 Jan 2020 | 30 Apr 2024 | Dutch | 47 years |
| Catherine Laura Mason | Director | 3 Aug 2017 | 2 Feb 2018 | British | 49 years |
| David Jonathan Scott-malden | Director | 29 Aug 2014 | 3 Aug 2017 | British | 69 years |
| James Stuart Bunce | Director | 29 Aug 2014 | 3 Aug 2017 | British | 55 years |
| Keith Henry Cockell | Director | 29 Aug 2014 | 3 Aug 2017 | British | 80 years |
| Neal Andrew Dale | Director | 29 Aug 2014 | 3 Aug 2017 | British | 55 years |
| Phillip Paul Bayliss | Director | 22 Jan 2020 | 23 Jul 2021 | British | 44 years |
| Simon Jeremy Century | Director | 23 Jul 2021 | 15 Oct 2024 | British | 41 years |
| Stephen Paul Halliwell | Director | 2 Feb 2018 | 22 Jan 2020 | British | 56 years |
| Timothy James Hunter Campbell | Director | 3 Aug 2017 | 30 Aug 2019 | British | 44 years |
| Tina Ying Zhao | Director | 16 Jun 2025 | 9 Oct 2025 | British | 31 years |
| Westley Alan Erlam | Director | 15 Oct 2024 | 31 Dec 2024 | British | 48 years |