| Andrew Christopher Wordsworth | Director | 8 Jun 2007 | 18 Sept 2008 | British | 56 years |
| Anthony Howard Stockwell | Secretary | 8 Jun 2007 | 1 Jul 2010 | British | - |
| Bradley Paul Duncan | Secretary | 26 Mar 2015 | 12 Dec 2018 | - | - |
| Claire Anne Williams | Secretary | 1 Jul 2010 | 26 Sept 2014 | - | - |
| Darran Keith Messem | Director | 11 Jul 2011 | 31 Mar 2013 | British | 60 years |
| David Strachan Higham | Director | 12 Jul 2018 | 16 Jul 2020 | British | 67 years |
| Euan Philip Murray | Director | 8 Jun 2007 | 13 Jun 2007 | British | 49 years |
| Hugh Kingsley Jones | Director | 18 Sept 2008 | 21 Jul 2011 | British | 63 years |
| James Richard Wilde | Director | 12 Feb 2013 | 9 Jul 2018 | British | 53 years |
| James Spencer Rawlins | Director | 11 Jul 2011 | 28 Feb 2012 | British | 47 years |
| John Richard Whybrow | Director | 11 Jul 2011 | 31 Mar 2013 | British | 52 years |
| Laura Byrne | Secretary | 11 Mar 2019 | 22 Sept 2023 | - | - |
| Matthew Alan Friend | Director | 18 Sept 2008 | 31 May 2011 | British | 52 years |
| Michael Anthony Rea | Director | 8 Jun 2007 | 18 Sept 2008 | Irish | 58 years |
| Michael Anthony Rea | Director | 20 Dec 2010 | 20 Jul 2011 | 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 |
| Rosemary Jane Cecilia Boot | Director | 8 Jun 2007 | 20 Jul 2011 | British | 64 years |
| Stefania Omassoli | Director | 28 Feb 2012 | 12 Jul 2018 | British | 47 years |
| Thomas Auguste Read Delay | Director | 8 Jun 2007 | 1 Aug 2011 | British | 67 years |
