| Andrew Christopher Wordsworth | Director | 28 Mar 2008 | 18 Sept 2008 | British | 56 years |
| Anthony Howard Stockwell | Secretary | 28 Mar 2008 | 20 Jun 2010 | British | - |
| Bradley Paul Duncan | Secretary | 20 Jul 2015 | 12 Dec 2018 | - | - |
| Bradley Paul Duncan | Director | 12 Jul 2018 | 12 Dec 2018 | British | 51 years |
| Claire Anne Williams | Secretary | 21 Jun 2010 | 26 Sept 2014 | - | - |
| Darran Keith Messem | Director | 11 Jul 2011 | 28 Apr 2017 | British | 60 years |
| Harry Samuel Morrison | Director | 20 May 2011 | 15 Dec 2011 | British | 49 years |
| Hugh Kingsley Jones | Director | 18 Sept 2008 | 21 Jul 2011 | British | 63 years |
| James Spencer Rawlins | Director | 11 Jul 2011 | 12 Jan 2012 | British | 47 years |
| Laura Byrne | Secretary | 11 Mar 2019 | 22 Sept 2023 | - | - |
| Laura Learmonth | Director | 1 Sept 2025 | 22 Oct 2025 | British | 49 years |
| Marie Julia O'dwyer | Director | 26 Apr 2024 | 1 Sept 2025 | Irish | 46 years |
| Matthew Alan Friend | Director | 18 Sept 2008 | 31 May 2011 | British | 52 years |
| Michael Anthony Rea | Director | 28 Mar 2008 | 18 Sept 2008 | Irish | 58 years |
| Michael Anthony Rea | Director | 20 Dec 2010 | 20 Jul 2011 | Irish | 58 years |
| Michael Anthony Rea | Director | 15 Dec 2011 | 1 Sept 2025 | Irish | 58 years |
| Milena Radoycheva | Secretary | 4 Dec 2023 | 31 Mar 2024 | - | - |
| Nicholas Timon Drakesmith | Director | 20 Jul 2020 | 25 Apr 2024 | British | 61 years |
| Oana Iulia Livia Nicoara | Director | 18 Aug 2020 | 1 Sept 2025 | British | 43 years |
| Peter Stephen Hambly | Director | 12 Jul 2018 | 1 Jun 2020 | British | 61 years |
| Rosemary Jane Cecilia Boot | Director | 28 Mar 2008 | 20 Jul 2011 | British | 64 years |
| Stefania Omassoli | Director | 28 Feb 2012 | 12 Jul 2018 | British | 47 years |
| Thomas Auguste Read Delay | Director | 28 Mar 2008 | 1 Aug 2011 | British | 67 years |