| Adrian Michael Ringrose | Director | 14 Apr 1999 | 14 Jul 2003 | British | 59 years |
| Alan Scott | Director | 7 Jun 2004 | 22 Mar 2006 | British | 60 years |
| Alexander George Bremner | Director | 19 Dec 2000 | 7 Jun 2004 | British | 72 years |
| Andrew Charles Mutch Rhodes | Director | 2 Jan 2008 | 6 Feb 2014 | British | 56 years |
| Andrew Craig Mason | Director | 14 Mar 2003 | 29 Jan 2004 | British | 51 years |
| Andrew Craig Mason | Director | 29 Jan 2004 | 27 Aug 2004 | British | 51 years |
| Andrew David Darling | Director | 26 Sept 2000 | 29 Jan 2004 | British | 65 years |
| Andrew Richard Kershaw | Director | 17 Apr 2018 | 14 Jun 2019 | British | 61 years |
| Christopher John Blundell | Director | 2 Jan 2008 | 3 Sept 2012 | British | 60 years |
| Christopher John Blundell | Director | 12 Jun 2017 | 29 Aug 2025 | British | 60 years |
| David Jason Mcevedy | Director | 17 Aug 2001 | 31 Jul 2004 | British | 61 years |
| Euan James Donaldson | Secretary | 3 Jun 1998 | 21 Jan 2002 | British | - |
| George Norman Powell | Director | 18 Dec 2002 | 14 Jul 2003 | British | 80 years |
| George Norman Powell | Director | 14 Jul 2003 | 1 Feb 2005 | British | 80 years |
| Harvey John William Pownall | Director | 3 Sept 2012 | 17 Aug 2015 | British | 60 years |
| Iain Lachlan Mackinnon | Secretary | 21 Jan 2002 | 30 Aug 2002 | British | - |
| Ian Richard Gethin | Director | 22 Mar 2006 | 2 Jan 2008 | British | 55 years |
| Jon Doron Zieve | Director | 3 Jun 1998 | 1 Oct 1998 | British | 76 years |
| Kenneth William Gillespie | Director | 3 Aug 2005 | 5 Aug 2005 | British | 65 years |
| Kim Michele Clear | Secretary | 22 Mar 2006 | 2 Feb 2007 | British | - |
| Mark Baxter | Director | 16 Jan 2003 | 22 Mar 2006 | British | 54 years |
| Martin Timothy Smith | Director | 12 Nov 2004 | 22 Mar 2006 | British | 59 years |
| Md Directors Limited | Corporate Nominee Director | 14 Apr 1998 | 3 Jun 1998 | United Kingdom | - |
| Md Secretaries Limited | Corporate Nominee Secretary | 14 Apr 1998 | 3 Jun 1998 | United Kingdom | - |
| Michael Geoffrey Darroch | Director | 1 Oct 1998 | 17 Aug 2001 | British | 66 years |
| Michael Mullins | Director | 1 Feb 2005 | 22 Mar 2006 | British | 79 years |
| Michael Richard Ashworth | Director | 3 Jun 1998 | 31 May 1999 | British | 82 years |
| Michael William Mcewan | Director | 4 Jun 1998 | 16 Jan 2003 | British | 58 years |
| Pamela June Smyth | Secretary | 30 Aug 2002 | 22 Mar 2006 | British | - |
| Paul Ferguson Fisher | Director | 17 Aug 2015 | 30 Mar 2017 | British | 71 years |
| Philip Mcvey | Director | 7 Jun 2004 | 22 Mar 2006 | British | 66 years |
| Rajeshree Patel | Director | 31 Jul 2004 | 22 Mar 2006 | British | 55 years |
| Robert Anthony Woolf | Director | 17 May 1999 | 26 Sept 2000 | British | 76 years |
| Robert James Marsden | Director | 14 Mar 2003 | 31 Jul 2004 | British | 71 years |
| Robin Smith Mackie | Director | 31 May 1999 | 19 Dec 2000 | British | 76 years |
| Roderick Robert Cameron | Director | 3 Jun 1998 | 30 Apr 1999 | British | 57 years |
| Russell George Sparks | Director | 27 Jun 2014 | 17 Apr 2018 | British | 55 years |
| Stuart Wilson Laird | Director | 1 Oct 1998 | 18 Dec 2002 | British | 73 years |
| William Moyes | Director | 3 Jun 1998 | 26 Sept 2000 | British | 77 years |
| William Robert Doughty | Director | 22 Mar 2006 | 2 Jan 2008 | British | 58 years |