| Alistair Ian Macrae | Secretary | 1 Apr 2005 | 7 Dec 2006 | British | - |
| Amy Charlotte Bone | Director | 1 Dec 2016 | 23 Feb 2018 | British | 43 years |
| Andrew David Darling | Director | 1 Apr 2005 | 31 Dec 2009 | British | 65 years |
| Andrew Hulme | Director | 23 Feb 2018 | 9 Mar 2020 | British | 46 years |
| Andrew John Cumming | Director | 8 Oct 2010 | 31 Dec 2014 | British | 72 years |
| Antony Gerald Shewell Brian | Director | 21 Feb 2006 | 8 Oct 2010 | British | 72 years |
| Antony Gerald Shewell Brian | Secretary | 26 Sept 2007 | 8 Oct 2010 | British | - |
| Colin Graham Dowsett | Director | 27 Jan 2012 | 22 Nov 2023 | British | 62 years |
| David Dermot Hennessey | Secretary | 1 Dec 2016 | 8 Jan 2024 | - | - |
| Derek Mcdonald | Director | 1 Apr 2005 | 7 Jun 2005 | British | 59 years |
| George Gibson Reid | Director | 21 Feb 2006 | 8 Oct 2010 | British | 58 years |
| Gordon Lennie Truman More | Director | 7 Jun 2005 | 28 Feb 2006 | British | 64 years |
| Iain Alasdair Macdonald | Secretary | 7 Dec 2006 | 26 Sept 2007 | British | - |
| Iain Anderson Corstorphine | Director | 7 Jun 2005 | 28 Feb 2006 | British | 58 years |
| Jennifer Elizabeth Mathias | Director | 8 Oct 2010 | 27 Jan 2012 | British | 52 years |
| Lloyds Secretaries Limited | Corporate Secretary | 11 Jun 2012 | 20 Jan 2016 | United Kingdom | - |
| Mark Peter Taylor | Secretary | 8 Oct 2010 | 11 Jun 2012 | - | - |
| Michael Wooderson | Director | 7 Jun 2005 | 8 Oct 2010 | British | 72 years |
| Oswalds Of Edinburgh Limited | Corporate Nominee Secretary | 1 Apr 2005 | 1 Apr 2005 | United Kingdom | - |
| Paul Gittins | Secretary | 20 Jan 2016 | 1 Dec 2016 | - | - |
| Peter Anthony Shepherd | Director | 8 Jul 2015 | 31 Jul 2016 | British | 52 years |
| William Peter Hendry | Director | 21 Feb 2006 | 15 May 2009 | American | 76 years |
