| Alan Sinclair Devine | Director | 22 Apr 2010 | 27 Jan 2016 | British | 65 years |
| Alan Sinclair Devine | Director | 5 Mar 2004 | 12 Jul 2006 | British | 65 years |
| Andrew David Potter | Director | 27 Jan 2016 | 8 Nov 2017 | British | 47 years |
| Annabel Susan Graham | Secretary | 18 Nov 2005 | 1 Sept 2006 | British | - |
| Antoinette Una Moriarty | Director | 10 Mar 2000 | 5 Mar 2004 | British | 58 years |
| Carolyn Smith | Director | 10 Mar 2000 | 30 Mar 2001 | British | 53 years |
| Giles Cady Byford | Director | 17 Dec 2014 | 10 Apr 2015 | British | 47 years |
| Helen Ann Grimshaw | Director | 10 Apr 2015 | 8 Nov 2017 | British | 50 years |
| Iain Arthur Houston | Director | 10 Mar 2000 | 5 Aug 2003 | British | 76 years |
| Iain Samuel Robertson | Director | 7 Feb 1995 | 10 Mar 2000 | British | 80 years |
| Ian Maxwell Shephard | Director | 5 Mar 2004 | 21 Dec 2005 | British | 57 years |
| John Albert Lea | Director | 10 Mar 2000 | 5 Mar 2004 | British | 74 years |
| John Albert Lea | Secretary | 3 May 1994 | 20 Apr 2004 | British | - |
| John Fraser Greenshields | Director | 14 Jan 2004 | 16 Nov 2006 | British | 55 years |
| Jonathan Michael Sweetman | Director | 3 May 1994 | 10 Mar 2000 | British | 74 years |
| Marcos Castro | Secretary | 1 Sept 2006 | 1 Aug 2008 | Other | - |
| Marina Louise Thomas | Secretary | 20 Apr 2004 | 18 Nov 2005 | British | - |
| Martin Graham Brown | Director | 3 May 1994 | 31 Jan 1997 | British | 67 years |
| Nicholas Mark Jordan | Director | 12 Jul 2006 | 17 Dec 2014 | British | 65 years |
| Peter James Whitby | Director | 10 Mar 2000 | 5 Mar 2004 | British | 60 years |
| Rachel Elizabeth Fletcher | Secretary | 1 Aug 2008 | 27 Apr 2012 | British | - |
| Rbs Secretarial Services Limited | Corporate Secretary | 27 Apr 2012 | 25 Sept 2018 | United Kingdom | - |
| Robert Speirs | Director | 7 Feb 1995 | 23 Oct 1998 | British | 89 years |
| Sharare Wei Hau | Director | 29 May 2009 | 22 Apr 2010 | British | 51 years |
| Stephen Paul Nixon | Director | 8 Nov 2017 | 26 Apr 2019 | British | 55 years |
| Thomas Carr | Director | 3 May 1994 | 1 May 1995 | British | 85 years |
| Timothy John Donald Boag | Director | 21 Dec 2005 | 21 Feb 2007 | British | 61 years |
| William James Clark | Director | 22 Feb 2007 | 23 May 2009 | British | 75 years |
| William Vaughan Latter | Director | 6 May 1997 | 10 Mar 2000 | British | 68 years |