| Andrew Charles Butterworth | Director | 3 Jun 2016 | 13 Dec 2018 | British | 52 years |
| Christopher Andrew Roberts | Director | 3 Jun 2016 | 13 Dec 2018 | British | 55 years |
| Jessica Catherine Bowles | Director | 13 Dec 2018 | 30 Sept 2020 | British | 54 years |
| John Roderick Marland | Director | 3 Jun 2016 | 13 Dec 2018 | British | 59 years |
| Katharine Jane Vokes | Director | 3 Jun 2016 | 13 Dec 2018 | British | 57 years |
| Kevin James Crotty | Director | 3 Jun 2016 | 13 Jan 2025 | British | 50 years |
| Matthew Christopher Hirst | Director | 1 Apr 2015 | 31 Mar 2016 | British | 49 years |
| Peter Andrew Crowther | Director | 3 Jun 2016 | 13 Dec 2018 | British | 54 years |
| Richard Peter Burgess | Director | 31 Mar 2016 | 30 Sept 2020 | British | 57 years |
| Steven Michael Mckiernan | Director | 30 Sept 2020 | 14 Apr 2023 | British | 38 years |
| Steven Paul Gosling | Director | 1 Apr 2015 | 31 Mar 2016 | British | 59 years |
| Steven Paul Gosling | Secretary | 1 Apr 2015 | 31 Mar 2016 | - | - |