| Alistair Ian Macrae | Director | 7 Aug 2002 | 28 Aug 2002 | British | 67 years |
| Alistair Ian Macrae | Secretary | 7 Aug 2002 | 31 Aug 2007 | British | - |
| Alistair James Neil Hewitt | Director | 10 Jun 2013 | 31 Oct 2016 | British | 54 years |
| Amy Charlotte Bone | Director | 23 Nov 2016 | 22 Feb 2018 | British | 43 years |
| Andrew Hulme | Director | 22 Feb 2018 | 9 Mar 2020 | British | 46 years |
| Andrew John Cumming | Director | 29 Sept 2009 | 6 Feb 2012 | British | 72 years |
| Bruce Smith Anderson | Director | 1 Oct 2002 | 10 Feb 2015 | British | 63 years |
| Catherine Mary Dow | Director | 7 Aug 2002 | 28 Aug 2002 | British | 76 years |
| David Dermot Hennessey | Secretary | 17 Aug 2016 | 8 Jan 2024 | - | - |
| David Miller | Director | 28 Jul 2008 | 28 Sept 2009 | British | 64 years |
| Donald Kenneth Gateley | Director | 11 Apr 2005 | 30 Sept 2013 | British | 61 years |
| Edward James Morrison | Director | 28 Aug 2002 | 30 Dec 2008 | British | 74 years |
| Fiona Jane Gibson | Director | 23 Jul 2015 | 23 Nov 2016 | British | 51 years |
| Gordon Lennie Truman More | Director | 23 Aug 2007 | 16 Jan 2009 | British | 64 years |
| Graeme Robert Andrew Shankland | Director | 7 Feb 2005 | 10 Sept 2007 | British | 66 years |
| Graeme Robert Andrew Shankland | Director | 29 Dec 2008 | 26 May 2010 | British | 66 years |
| Hugh Carroll Mcmillan | Director | 1 Oct 2002 | 30 Apr 2008 | British | 69 years |
| Ian Robertson | Director | 1 Jan 2006 | 29 Jun 2007 | British | 77 years |
| Jennifer Elizabeth Nielsen | Secretary | 31 Aug 2007 | 2 Jul 2012 | British | - |
| John Benjamin Molony | Director | 16 Dec 2010 | 18 Feb 2013 | British | 60 years |
| John Conway Moran | Director | 29 Mar 2005 | 31 Oct 2009 | British | 60 years |
| Karen Margaret Bothwell | Director | 1 Oct 2002 | 31 Mar 2005 | British | 64 years |
| Karen Margaret Bothwell | Director | 29 Sept 2009 | 2 Jul 2012 | British | 64 years |
| Lloyds Secretaries Limited | Corporate Secretary | 2 Jul 2012 | 22 Jan 2016 | United Kingdom | - |
| Nicholas John Chetham Robinson | Director | 23 Aug 2007 | 25 Sept 2009 | British | 56 years |
| Nigel Moss | Director | 29 Sept 2009 | 19 Apr 2013 | British | 51 years |
| Oswalds Of Edinburgh Limited | Corporate Nominee Secretary | 7 Aug 2002 | 7 Aug 2002 | United Kingdom | - |
| Pamela Simone Dickson | Director | 2 Jul 2012 | 1 Jun 2016 | Scottish | 59 years |
| Paul Gittins | Secretary | 22 Jan 2016 | 17 Aug 2016 | - | - |
| Pauline Anne Bradley | Director | 28 Aug 2002 | 28 Jan 2005 | British | 65 years |
| Peter Joseph Cummings | Director | 28 Aug 2002 | 31 Oct 2005 | British | 71 years |
| Yvonne Easton Sharp | Director | 29 Sept 2009 | 30 Jun 2010 | British | 54 years |