| Alison Wyllie | Secretary | 11 Apr 2011 | 12 Jan 2018 | British | - |
| Andreas Katsaros | Director | 9 Jul 2010 | 29 Oct 2018 | German | 58 years |
| Christopher John Huxtable | Director | 10 Dec 2010 | 31 Jul 2020 | British | 62 years |
| Christopher Paul Gill | Director | 24 Oct 2018 | 8 Jan 2024 | British | 69 years |
| Edward Douglas Glover | Director | 11 Nov 2009 | 29 Jun 2011 | British | 73 years |
| Emily Mendes | Secretary | 12 Jan 2018 | 22 Sept 2025 | - | - |
| Harry Edward Charles Seekings | Director | 25 Aug 2020 | 25 May 2022 | British | 53 years |
| Helen Price | Director | 11 May 2023 | 17 Sept 2024 | British | 44 years |
| Iain Douglas Bond | Director | 11 Nov 2009 | 7 Oct 2014 | British | 62 years |
| Keith William Pickard | Director | 13 Sept 2021 | 31 Mar 2023 | British | 58 years |
| Paul Emmanuel Mackey | Director | 11 Nov 2009 | 29 Sept 2010 | Irish | 67 years |
| Richard Martin Goulder | Director | 29 Oct 2018 | 8 Jul 2024 | British | 55 years |
| Stephen Owen | Secretary | 11 Nov 2009 | 11 Apr 2011 | - | - |
| Timothy Geoffrey Thorp | Director | 11 Nov 2009 | 29 Oct 2018 | British | 62 years |
| Werner Marc Friedrich Von Guionneau | Director | 29 Oct 2018 | 1 Jul 2023 | German, | 69 years |