| Alex George Stirling | Director | 26 Mar 2013 | 12 Apr 2013 | British | 53 years |
| Andrew Sloan | Director | 16 Apr 2013 | 30 Oct 2013 | British | 49 years |
| Benjamin William Goodger | Director | 14 Aug 2019 | 6 Jun 2022 | British | 43 years |
| Elizabeth Mcdonald | Secretary | 16 Apr 2013 | 31 Oct 2014 | - | - |
| Eric John Kump | Director | 26 Mar 2013 | 3 Oct 2016 | American | 56 years |
| Gervase Paul Adams | Director | 9 Oct 2018 | 6 Jun 2022 | British | 68 years |
| Jean Michel Claude Bonnavion | Director | 26 Mar 2013 | 15 Oct 2021 | French | 55 years |
| Johanna Elizabeth Deason | Secretary | 27 Mar 2020 | 6 Jun 2022 | - | - |
| Kanesh Khilosia | Director | 16 Apr 2013 | 31 Dec 2015 | British | 58 years |
| Leo Damian Carroll | Secretary | 31 Jul 2017 | 31 Jan 2020 | - | - |
| Mohammed Omar Shafi Khan | Director | 16 Oct 2017 | 5 Apr 2019 | British | 52 years |
| Richard Charles Smith | Director | 25 Mar 2013 | 30 Nov 2013 | British | 69 years |
| Robert Mark Stephenson | Director | 1 May 2015 | 20 Apr 2018 | British | 61 years |
| Terence Joseph Scicluna | Director | 9 Jan 2014 | 31 Mar 2017 | British | 69 years |
| Tom Riall | Director | 8 May 2017 | 16 Aug 2024 | British | 66 years |
| William Henry Mark Robson | Secretary | 31 Oct 2014 | 31 Jul 2017 | - | - |
| William Henry Mark Robson | Director | 25 Mar 2013 | 31 Jul 2017 | British | 63 years |