| Alan Duke Brown | Director | 16 Dec 2009 | 30 Apr 2018 | British | 65 years |
| Alasdair Murray Macconnell | Director | 5 Dec 2005 | 23 Jun 2010 | British | 66 years |
| Alastair John Harley Hepburn | Director | 24 Jul 2006 | 22 Dec 2009 | British | 56 years |
| Gerry Campbell More | Director | 2 Feb 2009 | 31 Mar 2011 | British | 64 years |
| John Francis Brophy | Director | 12 May 2006 | 15 Aug 2008 | British | 57 years |
| John Graham Gunn Reid | Director | 16 Dec 2009 | 31 Oct 2018 | British | 61 years |
| Karen Linda Naysmith | Director | 24 Aug 2005 | 12 May 2006 | British | 51 years |
| Ledge Services Limited | Corporate Nominee Director | 22 Aug 2005 | 24 Aug 2005 | United Kingdom | - |
| Ledingham Chalmers | Corporate Nominee Secretary | 22 Aug 2005 | 1 Apr 2006 | - | - |
| Pamela Simone Dickson | Director | 5 Dec 2005 | 6 May 2009 | Scottish | 58 years |
| Paul John Devine | Director | 15 Aug 2008 | 2 Feb 2009 | British | 62 years |
| Suzanne Victoria Barclay | Director | 5 Dec 2005 | 24 Jul 2006 | British | 58 years |