| Ali Behrooz Afshar | Director | 25 Jun 2004 | 15 Aug 2011 | British | 73 years |
| Andrew Thomas Taylor | Director | 1 Jul 2020 | 31 Mar 2022 | British | 39 years |
| Andrew Thomas Taylor | Director | 1 Aug 2022 | 20 Oct 2023 | British | 39 years |
| Barbara Ida Mary Turnbull | Director | 25 Jun 2004 | 31 Jan 2011 | British | 69 years |
| Burness (directors) Limited | Corporate Nominee Director | 19 Mar 2004 | 25 Jun 2004 | United Kingdom | - |
| Burness Solicitors | Corporate Nominee Secretary | 19 Mar 2004 | 25 Jun 2004 | - | - |
| Caroline Mary Tolhurst | Secretary | 14 Sept 2007 | 1 Jul 2008 | British | - |
| Christopher James Jukes | Director | 5 Sept 2019 | 30 Jun 2020 | British | 48 years |
| Christopher James Jukes | Director | 1 Aug 2022 | 30 Nov 2022 | British | 48 years |
| Craig David Mcwilliam | Director | 1 Jul 2010 | 1 May 2014 | British | 54 years |
| Craig David Mcwilliam | Director | 28 Apr 2016 | 10 Jan 2020 | British | 54 years |
| David Alan Sivewright | Director | 25 Jun 2004 | 24 Dec 2013 | British | 64 years |
| David Alan Sivewright | Director | 18 Nov 2010 | 30 Sept 2011 | British | 64 years |
| David John Yaldron | Director | 3 Dec 2012 | 28 Apr 2017 | British | 52 years |
| Deborah Clare Lee | Director | 17 Oct 2014 | 5 Sept 2019 | British | 50 years |
| Deborah Susan Esslemont | Secretary | 25 Jun 2004 | 14 Sept 2007 | British | - |
| Derek John Lewis | Secretary | 7 Jun 2018 | 31 Mar 2022 | - | - |
| Derek John Lewis | Director | 1 Jul 2020 | 31 Mar 2022 | British | 62 years |
| Ian Douglas Mair | Director | 3 Dec 2012 | 20 Jun 2014 | British | 53 years |
| James Alexander Stuart Drummond | Director | 1 Jul 2008 | 31 Jan 2011 | British | 61 years |
| James Mccubbin Rowney | Director | 25 Jun 2004 | 1 Jul 2008 | British | 62 years |
| John Edward Irvine | Director | 25 Jun 2004 | 31 Mar 2010 | British | 70 years |
| Katharine Emma Robinson | Secretary | 1 Jul 2008 | 7 Jun 2018 | British | - |
| Matthew David Buller Smith | Director | 1 Apr 2022 | 31 Oct 2022 | British | 39 years |
| Michael Afshar | Director | 25 Jun 2004 | 15 Aug 2011 | British | 72 years |
| Peter Sean Vernon | Director | 30 Sept 2011 | 31 Dec 2016 | British | 67 years |
| Raymond Charles Williams | Director | 25 Jun 2004 | 31 Mar 2009 | British | 73 years |
| Richard Ian Powell | Director | 1 May 2014 | 28 Apr 2016 | British | 58 years |
| Roger Frederick Crawford Blundell | Director | 30 Sept 2011 | 30 Jun 2020 | British | 64 years |
| Simon Geoffrey Harding-roots | Director | 28 Apr 2016 | 30 Jun 2020 | British | 58 years |
| Steven Philip Garrett | Director | 31 Mar 2009 | 30 Sept 2011 | British | 62 years |
| Ulrike Schwarz-runer | Director | 30 Sept 2011 | 28 Apr 2016 | Austrian | 55 years |
| William Robert Bax | Director | 5 Jan 2017 | 1 Jun 2018 | British | 48 years |