| Aileen Margaret Gillan | Director | 20 Feb 2019 | 19 Feb 2025 | British | 57 years |
| Alan Christopher Burton | Director | 29 Nov 2002 | 15 Nov 2003 | British | 82 years |
| Alexander Maxwell Crombie | Director | 29 Nov 2002 | 3 Nov 2005 | British | 76 years |
| Alexander Maxwell Crombie | Director | 10 Oct 2007 | 31 Dec 2009 | British | 76 years |
| Alexander Scott Bell | Director | 2 Sept 1998 | 15 Mar 2002 | British | 84 years |
| Amanda Helen Bowe | Director | 27 Apr 2017 | 31 Aug 2018 | British | 57 years |
| Andrew Simon Warner | Director | 16 Nov 2018 | 7 Aug 2019 | British | 58 years |
| Anne Margaret Gunther | Director | 29 Nov 2002 | 15 Nov 2003 | British | 70 years |
| Barry O'dwyer | Director | 1 Jun 2006 | 3 Aug 2007 | Irish | 54 years |
| Brian James Mcbride | Director | 11 May 2020 | 19 May 2022 | British | 70 years |
| Burness Solicitors | Corporate Nominee Secretary | 3 Nov 1997 | 2 Sept 1998 | - | - |
| David Cameron Bentley | Director | 16 Mar 2002 | 29 Nov 2002 | Uk | 71 years |
| David Cameron Bentley | Director | 16 Nov 2003 | 3 Nov 2005 | Uk | 71 years |
| David Gideon Marock | Director | 17 Apr 2017 | 31 Dec 2024 | British | 55 years |
| David Thomas Nish | Director | 10 Oct 2007 | 30 Jun 2010 | British | 65 years |
| Evelyn Brigid Bourke | Director | 7 Aug 2006 | 10 Oct 2007 | Irish | 60 years |
| Finbar Anthony O'dwyer | Director | 1 Jan 2014 | 19 Jun 2019 | Irish | 54 years |
| Frances Margaret Horsburgh | Secretary | 13 Mar 2015 | 1 Nov 2018 | - | - |
| Geoffrey Charles Towers | Director | 8 Jan 2007 | 31 Mar 2010 | British | 65 years |
| Gillian Mcgovern | Secretary | 19 Apr 2007 | 31 Oct 2011 | British | - |
| Grant Thomas Hotson | Director | 22 Oct 2021 | 30 Dec 2022 | British | 54 years |
| Iain Cobden Lumsden | Director | 2 Sept 1998 | 29 Nov 2002 | British | 79 years |
| Iain Cobden Lumsden | Director | 16 Nov 2003 | 13 Jan 2004 | British | 79 years |
| James Stretton | Director | 2 Sept 1998 | 15 Dec 2001 | British | 82 years |
| John Easton Gill | Director | 3 Nov 2005 | 10 Oct 2007 | British | 61 years |
| John Easton Gill | Director | 1 Jul 2010 | 29 Sept 2017 | British | 61 years |
| John Francis Hylands | Director | 16 Dec 2001 | 29 Nov 2002 | British | 74 years |
| John Francis Hylands | Director | 16 Nov 2003 | 3 Nov 2005 | British | 74 years |
| Jonathan Black | Director | 23 Feb 2023 | 31 Dec 2024 | British | 35 years |
| Karen Gilchrist | Secretary | 31 Oct 2011 | 13 Mar 2015 | British | - |
| Kevin Allen Huw Parry | Director | 29 May 2018 | 31 Dec 2018 | British | 63 years |
| Lynne Margaret Peacock | Director | 31 Jan 2017 | 29 May 2018 | British | 72 years |
| Mark Alexander Hesketh | Director | 22 Apr 2011 | 31 May 2017 | British | 64 years |
| Mark Jonathan Dixon | Director | 29 Oct 2013 | 1 Nov 2017 | British | 63 years |
| Michael Tumilty | Director | 18 Feb 2020 | 19 Apr 2022 | British | 54 years |
| Nathan Richard Parnaby | Director | 3 Nov 2005 | 19 Nov 2010 | British | 67 years |
| Neil Lindsay Nicholson Machray | Director | 7 Feb 2020 | 3 Feb 2022 | British | 56 years |
| Peter Anthony Stubbs | Secretary | 29 Nov 2002 | 15 Oct 2003 | British | - |
| Peter Walter Somerville | Secretary | 2 Sept 1998 | 29 Nov 2002 | British | - |
| Peter Walter Somerville | Secretary | 16 Oct 2003 | 19 Apr 2007 | British | - |
| Richard Anthony Charnock | Director | 1 Sept 2012 | 1 Jan 2014 | British | 66 years |
| Richard David Houghton | Director | 17 Apr 2017 | 31 Aug 2018 | British | 60 years |
| Ronald Frank Cameron Taylor | Director | 10 Oct 2007 | 20 Feb 2009 | British | 59 years |
| Ronald Frank Cameron Taylor | Director | 21 Jan 2010 | 9 Apr 2013 | British | 59 years |
| Shaun Edward Doherty | Director | 3 Nov 2005 | 7 Aug 2006 | British | 67 years |
| Simon David George Douglas | Director | 3 Nov 2005 | 27 Apr 2006 | British | 60 years |
| Stephen Keith Percival | Director | 31 May 2017 | 31 Aug 2018 | British | 50 years |
| Stuart Lapsley Maclennan | Director | 29 Mar 2023 | 29 Jan 2025 | British | 49 years |
| Tanya Catherine Castell | Director | 19 Mar 2019 | 31 Dec 2020 | British | 61 years |
| Trevor John Matthews | Director | 3 Nov 2005 | 29 Jan 2008 | Australian | 73 years |
| Wendy Jane Smith | Secretary | 1 Nov 2018 | 30 Apr 2020 | - | - |
| Wjb (directors) Limited | Corporate Director | 3 Nov 1997 | 2 Sept 1998 | - | - |