| Alexander Brian Cooper Short | Director | 2 Jul 2007 | 1 Apr 2008 | British | 59 years |
| Andrew Stuart Mclean | Secretary | 14 May 2008 | 25 Feb 2009 | British | - |
| Arthur Detmar Chamberlain | Director | 31 Dec 2014 | 13 Aug 2019 | British | 47 years |
| Behdad Shahsavari | Director | 24 Apr 2014 | 30 Sept 2019 | Iranian | 52 years |
| Charles Grant Gordon | Director | 26 May 2005 | 26 Apr 2008 | British | 99 years |
| Charles Grant Gordon | Director | 10 Mar 2011 | 21 Dec 2013 | British | 99 years |
| Dermid Martin Strain | Director | 27 Jul 2011 | 10 Apr 2013 | British | 64 years |
| Dm Company Services Limited | Corporate Secretary | 7 Apr 2005 | 14 Apr 2005 | United Kingdom | - |
| Dm Director | Corporate Director | 7 Apr 2005 | 14 Apr 2005 | - | - |
| Eva Maria Bishop | Secretary | 26 Feb 2009 | 10 Nov 2009 | British | - |
| Ewan John Henderson | Director | 14 Apr 2005 | 26 May 2005 | British | 58 years |
| Ewen Cameron Stewart Macpherson | Director | 14 Nov 2005 | 9 Nov 2008 | British | 84 years |
| Francisco Javier Ferran Larraz | Director | 26 May 2005 | 24 Apr 2014 | Spanish | 70 years |
| George Daniel Tait | Director | 14 Apr 2005 | 26 May 2005 | British | 73 years |
| George Daniel Tait | Secretary | 14 Apr 2005 | 2 May 2008 | British | - |
| Gianluca Brozzetti | Director | 26 May 2005 | 9 Dec 2010 | Italian | 72 years |
| Giles Robert Bryant Wilson | Director | 4 Sept 2020 | 10 May 2024 | British | 53 years |
| Helen Gaye Cowing | Director | 13 May 2019 | 20 Nov 2019 | British | 60 years |
| Iain John Grant Napier | Director | 15 May 2009 | 26 Apr 2019 | British | 77 years |
| Julius Fergus Chamberlain | Director | 22 Sept 2009 | 31 Dec 2014 | British | 44 years |
| Michael Lamont | Director | 10 Apr 2013 | 6 Aug 2019 | British | 66 years |
| Michael Lamont | Director | 20 Nov 2019 | 4 Sept 2020 | British | 66 years |
| Robert Bram Polet | Director | 28 Sept 2011 | 30 Sept 2019 | Dutch | 71 years |
| Roland Van Bommel | Director | 26 May 2005 | 18 Sept 2009 | British | 75 years |
| Simon John Hunt | Director | 25 Feb 2016 | 30 Nov 2020 | British | 55 years |
| Stella Julie David | Director | 18 Sept 2009 | 29 Feb 2016 | British | 64 years |
| Susan Elizabeth Murray | Director | 13 May 2019 | 30 Sept 2019 | British | 69 years |
| Veronica Lesley Jackson | Director | 4 Aug 2008 | 25 Feb 2011 | British | 62 years |