| Alan James Johnstone | Director | 27 Jun 2017 | 5 Feb 2020 | British | 63 years |
| Andrew James Findlay | Director | 27 Jun 2017 | 5 Feb 2020 | British | 52 years |
| Craig Shanaghey | Director | 22 May 2018 | 5 Feb 2020 | British | 55 years |
| David Arthur Stewart | Director | 2 Jul 2013 | 4 May 2015 | British | 70 years |
| Derek Byrne | Director | 4 Aug 2017 | 24 Oct 2019 | Irish | 54 years |
| Douglas Spence | Director | 20 Dec 2004 | 16 Dec 2013 | British | 70 years |
| Douglas Spence | Secretary | 26 Jul 2004 | 2 Jul 2013 | British | - |
| Grant Rae Angus | Director | 4 May 2015 | 3 Aug 2017 | British | 56 years |
| Hugh Marcus Pelham | Director | 26 Jul 2004 | 31 Jul 2017 | British | 59 years |
| Iain Angus Jones | Secretary | 18 Dec 2015 | 5 Feb 2020 | - | - |
| Ian John Tattersall | Director | 5 Feb 2020 | 4 Aug 2025 | British | 62 years |
| James Duncan Crawford | Director | 4 May 2015 | 12 Aug 2016 | British | 55 years |
| James Jordon | Director | 20 Dec 2004 | 31 Dec 2007 | British | 78 years |
| John Alexander Jeffrey | Director | 20 Dec 2004 | 2 Jul 2013 | British | 67 years |
| John Hayton | Director | 1 Jan 2013 | 2 Jul 2013 | British | 70 years |
| Richard Manson Duff | Director | 25 Oct 2016 | 5 Feb 2020 | British | 68 years |
| Robert Frazer Thompson | Director | 8 Feb 2008 | 2 Jul 2013 | British | 53 years |
| Robert Muirhead Birnie Brown | Secretary | 2 Jul 2013 | 18 Dec 2015 | British | - |
| Robert Thompson | Director | 20 Dec 2004 | 2 Jul 2013 | British | 85 years |
| Sally Ventress | Director | 23 Jun 2014 | 17 Aug 2018 | British | 53 years |
| Stephen James Nicol | Director | 2 Jul 2013 | 4 May 2015 | British | 51 years |
| Stephen James Nicol | Director | 3 Aug 2017 | 5 Feb 2020 | British | 51 years |
| Timothy Stuart Ross | Director | 8 Apr 2013 | 8 Jun 2013 | British | 78 years |
| Ward Hadaway Company Secretarial Services Limited | Corporate Director | 22 Jun 2004 | 26 Jul 2004 | United Kingdom | - |
| Ward Hadaway Company Secretarial Services Limited | Corporate Secretary | 22 Jun 2004 | 26 Jul 2004 | United Kingdom | - |