| Andrew Robert Craig Ross | Director | 15 Feb 2016 | 20 Apr 2018 | British | 62 years |
| Charlotte Alexandra Stranner | Director | 17 Aug 2018 | 9 Mar 2021 | British | 47 years |
| David George Templeman | Director | 20 Apr 2021 | 12 Aug 2021 | British | 63 years |
| Julian Gerard Powell Phipps | Director | 15 Feb 2016 | 16 Jul 2018 | British | 60 years |
| Julian Gerard Powell Phipps | Secretary | 15 Feb 2016 | 16 Jul 2018 | - | - |
| Mathew Paul Hawkins | Director | 17 Jan 2013 | 8 Sept 2016 | British | 51 years |
| Peter James Hawkins | Director | 1 Jun 2013 | 15 Feb 2016 | British | 79 years |
| Simon Charles Mewett | Director | 21 Jan 2013 | 8 Sept 2016 | British | 60 years |
| William Dobbie | Director | 20 Apr 2018 | 12 Oct 2018 | British | 67 years |