| Adrian Waine Robinson | Director | 30 May 2017 | 28 Jul 2020 | British | 65 years |
| Helen Ruth Down | Director | 28 Jul 2020 | 1 Apr 2022 | British | 47 years |
| John William Breckenridge | Director | 5 May 2015 | 28 Jul 2020 | American | 64 years |
| Keith Stephen Gains | Director | 5 Feb 2015 | 30 May 2017 | British | 49 years |
| Kirsty Louise Usher | Director | 30 May 2017 | 1 Apr 2022 | Scottish | 51 years |
| Liz Oldroyd | Secretary | 5 Feb 2015 | 10 Jun 2020 | British | - |
| Michael O'brien | Secretary | 15 Jun 2012 | 31 Dec 2013 | - | - |
| Nur Atikah Paimin | Director | 1 Apr 2022 | 6 Nov 2023 | Malaysian | 40 years |
| Paul Kevin Hughes | Director | 28 Jul 2020 | 1 Apr 2022 | British | 52 years |
| Richard Henry Charles Nourse | Director | 23 Sept 2011 | 5 Feb 2015 | British | 62 years |
| Richard Mardon | Director | 15 Jun 2012 | 5 Feb 2015 | British | 62 years |
| Rory John Quinlan | Director | 5 Feb 2015 | 5 May 2015 | Australian | 55 years |
| Shamsul Azham Bin Mohd Isa | Director | 1 Apr 2022 | 6 Nov 2023 | Malaysian | 55 years |
| Simon Richard Eaves | Director | 1 Sept 2015 | 1 Apr 2022 | Welsh | 59 years |
| Tracy Lee Plimmer | Director | 15 Sept 2011 | 23 Sept 2011 | British | 50 years |
| Victoria O'brien | Secretary | 31 Dec 2013 | 5 Feb 2015 | - | - |