| Andrew Scott Richards | Director | 3 Aug 2004 | 11 May 2006 | British | 54 years |
| Anthony Pope | Director | 20 Jan 2004 | 3 Aug 2004 | British | 73 years |
| Biif Corporate Services Limited | Corporate Director | 31 Mar 2009 | 21 Apr 2016 | United Kingdom | - |
| David Charles Turner | Secretary | 19 Aug 2002 | 24 Feb 2006 | Other | - |
| David Fulton Gilmour | Director | 15 Aug 2011 | 2 Dec 2021 | British | 63 years |
| Geoffrey Arthur George Shepheard | Secretary | 23 Aug 2004 | 20 Dec 2006 | British | - |
| Ian Clark | Director | 13 Nov 2007 | 20 Dec 2019 | British | 67 years |
| Jacqueline Elizabeth Fox | Secretary | 14 Jun 2001 | 17 May 2002 | British | - |
| Jeffrey Michael Thornton | Director | 1 Jun 1998 | 18 Sept 2003 | British | 73 years |
| John Alexander Hope | Director | 18 Dec 1997 | 3 Mar 2004 | British | 69 years |
| John Alexander Hope | Director | 11 May 2006 | 20 Dec 2006 | British | 69 years |
| John Morrison | Secretary | 18 Dec 1997 | 14 Jun 2001 | British | - |
| Jordans (scotland) Limited | Corporate Nominee Director | 10 Sept 1997 | 18 Dec 1997 | United Kingdom | - |
| Joseph Michael Martin | Director | 12 Jun 1998 | 18 May 1999 | British | 74 years |
| Laurence Seymour Clarke | Director | 19 Mar 2009 | 15 Aug 2011 | British | 54 years |
| Lesley Anne Warburton | Director | 3 Mar 2004 | 25 Jun 2004 | British | 56 years |
| Michael Joseph Ryan | Director | 7 Oct 2003 | 19 Mar 2009 | Irish | 60 years |
| Oswalds Of Edinburgh Limited | Corporate Nominee Secretary | 10 Sept 1997 | 18 Dec 1997 | United Kingdom | - |
| Peter Nigel John Buxton | Director | 11 May 2006 | 20 Dec 2006 | British | 57 years |
| Robert Souter Fullerton | Director | 18 May 1999 | 20 Jan 2004 | British | 74 years |
| Robert Souter Fullerton | Director | 3 Aug 2004 | 11 May 2006 | British | 74 years |
| Seamus Joseph Gillen | Secretary | 17 May 2002 | 19 Aug 2002 | British | - |
| William James Mackintosh | Director | 18 Dec 1997 | 18 Sept 2003 | British | 67 years |