| Chantal Antonia Henderson | Director | 10 Aug 2015 | 21 Aug 2015 | British | 51 years |
| Christopher James Jukes | Director | 21 Aug 2015 | 27 Sept 2019 | British | 48 years |
| Deborah Clare Lee | Director | 27 Sept 2019 | 28 Mar 2022 | British | 50 years |
| James Creyke Hulton Whitty-lewis | Director | 28 Mar 2022 | 5 Oct 2022 | British | 45 years |
| Judith Patricia Ball | Secretary | 21 Aug 2015 | 4 Apr 2019 | - | - |
| Katharine Emma Robinson | Secretary | 10 Aug 2015 | 21 Aug 2015 | - | - |
| Peter Sean Vernon | Director | 10 Aug 2015 | 21 Aug 2015 | British | 67 years |
| Roger Frederick Crawford Blundell | Director | 10 Aug 2015 | 21 Aug 2015 | British | 64 years |
| Stephen Jeremy Moore | Director | 21 Aug 2015 | 5 Oct 2022 | British | 66 years |
| Ulrike Schwarz-runer | Director | 22 Jul 2015 | 21 Aug 2015 | Austrian | 55 years |