| Alan Ewing Mills | Secretary | 24 Mar 1997 | 1 Mar 2005 | British | - |
| Alan Sinclair Devine | Director | 17 Mar 2011 | 27 Jan 2016 | British | 65 years |
| Alan Sinclair Devine | Director | 27 Oct 2004 | 22 Jun 2006 | British | 65 years |
| Annabel Susan Graham | Secretary | 18 Nov 2005 | 1 Sept 2006 | British | - |
| Bruce James Mclaren | Director | 24 Mar 1997 | 13 Nov 2007 | British | 59 years |
| Darren Scott Jones-molyneux | Director | 18 Nov 2014 | 8 Nov 2017 | British | 54 years |
| Eric George William Tough | Director | 15 Apr 1996 | 22 Apr 1997 | British | 68 years |
| Euan Graeme Hamilton | Director | 5 Mar 2004 | 16 Mar 2011 | Scottish | 64 years |
| Guy Howard Cato | Director | 22 Oct 2014 | 8 Nov 2017 | British | 54 years |
| Helen Ann Grimshaw | Director | 27 Jan 2016 | 8 Nov 2017 | British | 50 years |
| Hew Campbell | Director | 15 Apr 1996 | 22 Apr 1997 | British | 63 years |
| Iain Leith Johnston Robertson | Director | 24 Mar 1997 | 27 Apr 2009 | British | 73 years |
| Iain Samuel Robertson | Director | 24 Mar 1997 | 10 Oct 2003 | British | 80 years |
| James Alexander Stevens | Director | 17 Apr 1997 | 5 Mar 2004 | British | 64 years |
| John Alastair Nigel Cameron | Director | 6 Aug 1999 | 1 Mar 2007 | British | 71 years |
| John Donald Black Workman | Director | 24 Mar 1997 | 27 Oct 2011 | British | 73 years |
| John Fraser Greenshields | Director | 5 Mar 2004 | 15 Jun 2005 | British | 55 years |
| John Patrick Hourican | Director | 1 Mar 2007 | 4 Jun 2008 | Irish | 55 years |
| Keith Damian Pereira | Director | 8 Nov 2017 | 1 May 2024 | British | 47 years |
| Marcos Castro | Secretary | 1 Sept 2006 | 1 Aug 2008 | Other | - |
| Marina Louise Thomas | Secretary | 2 Mar 2005 | 18 Nov 2005 | British | - |
| Matthew Edward Alphage Irish | Director | 18 Nov 2014 | 8 Nov 2017 | British | 46 years |
| Nicholas Mark Jordan | Director | 23 Jun 2006 | 25 Mar 2011 | British | 65 years |
| Paul Denzil John Sullivan | Director | 24 Feb 2009 | 22 Oct 2014 | British | 59 years |
| Philip Barry Louden | Director | 5 May 1999 | 18 Oct 2001 | English | 78 years |
| Rachel Elizabeth Fletcher | Secretary | 1 Aug 2008 | 27 Apr 2012 | British | - |
| Rbs Secretarial Services Limited | Corporate Secretary | 27 Apr 2012 | 28 Sept 2018 | United Kingdom | - |
| Robert Speirs | Director | 24 Mar 1997 | 23 Oct 1998 | British | 89 years |
| Scott Mcfarlane Thomson | Director | 24 Feb 2009 | 18 Nov 2011 | British | 54 years |
| Shirley Margaret Macgillivray | Secretary | 15 Apr 1996 | 24 Mar 1997 | British | - |
| Stephen Paul Nixon | Director | 8 Nov 2017 | 26 Apr 2019 | British | 55 years |
| Timothy John Donald Boag | Director | 15 Jun 2005 | 10 Jun 2008 | British | 61 years |
| William James Clark | Director | 18 Oct 2001 | 5 Mar 2004 | British | 75 years |