| Alan Campbell Ritchie | Director | 23 Aug 2005 | 28 Apr 2006 | British | 58 years |
| Alan Campbell Ritchie | Director | 6 Jul 2007 | 14 Oct 2009 | British | 58 years |
| Alexander George Bremner | Director | 17 Jun 2009 | 25 Jan 2011 | British | 71 years |
| Biif Corporate Services Limited | Corporate Director | 22 Dec 2010 | 9 Feb 2016 | United Kingdom | - |
| Clare Easton | Director | 20 Nov 2007 | 17 Jun 2009 | British | 49 years |
| Colin Michael Exford | Director | 28 Nov 2006 | 11 Feb 2009 | British | 67 years |
| Colin Michael Exford | Director | 1 Dec 2009 | 22 Dec 2010 | British | 67 years |
| David Fulton Gilmour | Director | 4 Mar 2011 | 2 Nov 2021 | British | 62 years |
| Frederick Graeme Hogg | Director | 23 Sept 2005 | 23 Sept 2005 | British | 73 years |
| Jan Karen Love | Director | 27 Jan 2006 | 20 Nov 2007 | British | 53 years |
| John Christian Elliot | Director | 23 Aug 2005 | 27 Jan 2006 | British | 73 years |
| John Christian Elliot | Director | 28 Apr 2006 | 6 Jul 2007 | British | 73 years |
| John Wrinn | Director | 2 Nov 2021 | 31 Jan 2023 | British | 63 years |
| Keith David Lancaster | Director | 11 Feb 2009 | 26 Jun 2009 | British | 52 years |
| Maclay Murray & Spens Llp | Corporate Nominee Secretary | 25 Jul 2008 | 24 Aug 2009 | United Kingdom | - |
| Macroberts - (firm) | Corporate Nominee Secretary | 22 Mar 2005 | 25 Jul 2008 | - | - |
| Macroberts Corporate Services Limited | Corporate Nominee Director | 22 Mar 2005 | 23 Aug 2005 | United Kingdom | - |
| Peter John Sheldrake | Director | 29 Jun 2018 | 31 Oct 2023 | British | 66 years |
| Philip Peter Ashbrook | Director | 9 Feb 2016 | 29 Jun 2018 | British | 65 years |
| Ronald Gilfillan Jack | Director | 23 Aug 2005 | 28 Nov 2006 | British | 70 years |
| Simon James Edward Peck | Director | 22 Dec 2010 | 27 Mar 2012 | British | 65 years |
| Simon James Edward Peck | Director | 30 Jul 2012 | 1 Aug 2018 | British | 65 years |
| Trusha Pillay | Director | 26 Jun 2009 | 1 Dec 2009 | British | 53 years |
| William Iain Watson | Director | 28 Nov 2006 | 1 Oct 2009 | British | 56 years |
| William James Mackintosh | Director | 23 Aug 2005 | 28 Nov 2006 | British | 66 years |