| Caroline Waterer | Secretary | 1 Jun 2011 | 31 Jul 2016 | - | - |
| Christopher Gordon Trebilcock | Director | 23 May 2011 | 31 Dec 2018 | British | 69 years |
| Christopher Gordon Trebilcock | Secretary | 31 Jul 2016 | 31 Dec 2018 | - | - |
| Christopher Joseph Bond | Director | 31 Mar 2017 | 7 Sept 2021 | British | 68 years |
| Colin Sherriff | Director | 1 Jun 2011 | 26 Aug 2015 | British | 75 years |
| Daniel Sabel | Secretary | 8 Sept 2021 | 31 Jan 2025 | - | - |
| Gareth Jones | Director | 23 May 2011 | 2 Jul 2025 | British | 64 years |
| Jolyon David Hewer Griffiths | Director | 23 Aug 2012 | 31 Mar 2017 | British | 65 years |
| Michael De'ath | Director | 1 Jun 2011 | 23 Aug 2012 | British | 67 years |
| Neil Bryden Mccall | Director | 5 Sept 2018 | 16 Apr 2024 | British | 68 years |
| Robert David Green | Director | 8 Sept 2021 | 31 Mar 2025 | British | 71 years |
| Stephen White | Director | 26 Aug 2015 | 5 Sept 2018 | British | 61 years |
| Zhonghua Gloria Yang | Director | 1 Jan 2019 | 31 Mar 2023 | British | 47 years |
| Zhonghua Yang | Secretary | 1 Jan 2019 | 7 Sept 2021 | - | - |
