| Afsaneh Dana Vosooghi | Director | 28 Aug 2007 | 17 Sept 2008 | Swedish | 62 years |
| Andrew Kevin Fenn | Director | 12 Aug 2011 | 31 Jan 2014 | British | 68 years |
| Annette Monique Lara Spindler | Director | 31 Jul 2017 | 12 Oct 2017 | British | 58 years |
| Bernard Moroney | Director | 12 Aug 2011 | 11 Apr 2024 | British | 73 years |
| Clifford Gwyn Davies | Director | 12 Aug 2011 | 11 Apr 2024 | British | 60 years |
| David Timms | Director | 26 Nov 2008 | 30 Sept 2009 | British | 77 years |
| Elizabeth Mary Mcdonald | Secretary | 7 Nov 2012 | 31 Oct 2014 | - | - |
| Fiona Jacqueline Morgan | Director | 29 Feb 2012 | 27 Dec 2013 | British | 62 years |
| Ian Beider | Director | 17 Sept 2008 | 19 Sept 2008 | British | 79 years |
| John Richard Vlietstra | Director | 12 Aug 2011 | 31 Dec 2013 | British | 80 years |
| Keith Fleming | Director | 17 Sept 2008 | 21 Nov 2010 | British | 67 years |
| Keith Fleming | Secretary | 17 Sept 2008 | 12 Oct 2011 | British | - |
| Krista Nyree Whitley | Director | 31 Jul 2017 | 11 Apr 2024 | British | 56 years |
| Leo Damian Carroll | Secretary | 31 Jul 2017 | 31 Jan 2020 | - | - |
| Lindsey Walker | Director | 12 Aug 2011 | 31 Dec 2011 | British | 65 years |
| Manish Prasad | Director | 1 Feb 2014 | 11 Apr 2024 | British | 54 years |
| Martin Mayhew | Director | 17 Sept 2008 | 14 Oct 2011 | British | 70 years |
| Mohammed Omar Shafi Khan | Director | 16 Oct 2017 | 5 Apr 2019 | British | 52 years |
| Mohsen Berenji | Secretary | 28 Aug 2007 | 17 Sept 2008 | British | - |
| Pinsent Masons Secretarial Limited | Corporate Secretary | 6 Feb 2009 | 7 Nov 2012 | United Kingdom | - |
| Richard Charles Smith | Director | 12 Aug 2011 | 30 Nov 2013 | British | 69 years |
| Simon Mark Gallier | Director | 30 Sept 2009 | 3 Sept 2010 | British | 67 years |
| Stephen Robert Williams | Director | 12 Aug 2011 | 31 Jul 2017 | British | 57 years |
| William Henry Mark Robson | Secretary | 31 Oct 2014 | 31 Jul 2017 | - | - |
| William Henry Mark Robson | Director | 29 Feb 2012 | 31 Jul 2017 | British | 63 years |