| Alasdair Campbell | Director | 11 Nov 2021 | 9 Feb 2024 | British | 42 years |
| Alison Groat | Director | 1 Dec 2023 | 30 Jan 2025 | British | 46 years |
| Colin Michael Exford | Director | 17 May 2007 | 11 Feb 2009 | British | 68 years |
| Colin Michael Exford | Director | 25 Jan 2010 | 11 Oct 2013 | British | 68 years |
| David Niall Smith | Director | 1 Apr 2015 | 1 Dec 2023 | British | 55 years |
| Dentons Secretaries Limited | Corporate Secretary | 27 Oct 2017 | 23 Jan 2024 | United Kingdom | - |
| Duncan Henderson Ogilvie | Director | 17 Apr 2007 | 31 Dec 2009 | British | 60 years |
| Duncan Henderson Ogilvie | Director | 31 May 2013 | 1 Apr 2015 | British | 60 years |
| Geoffrey Alan Quaife | Director | 11 Oct 2013 | 14 Feb 2019 | British | 71 years |
| Glenn Fraser Whyte Allison | Director | 14 Sept 2007 | 15 Feb 2008 | British | 70 years |
| Ian Butchart | Director | 17 May 2007 | 14 Sept 2007 | British | 70 years |
| James Anthony O'halloran | Director | 11 Oct 2013 | 11 Nov 2021 | British | 51 years |
| Keith David Lancaster | Director | 11 Feb 2009 | 26 Jun 2009 | British | 53 years |
| Maclay Murray & Spens Llp | Corporate Nominee Secretary | 21 Dec 2006 | 27 Oct 2017 | United Kingdom | - |
| Ronald Gilfillan Jack | Director | 17 May 2007 | 31 Mar 2015 | British | 71 years |
| Steven Harry Tolson | Director | 17 Feb 2010 | 31 May 2013 | British | 71 years |
| Stuart Charles Oag | Director | 15 Feb 2008 | 19 Dec 2012 | British | 54 years |
| Timothy Richard Elliot | Director | 31 Mar 2010 | 14 Dec 2011 | British | 54 years |
| Trusha Pillay | Director | 26 Jun 2009 | 25 Jan 2010 | British | 54 years |
| Vindex Limited | Corporate Nominee Director | 21 Dec 2006 | 17 Apr 2007 | United Kingdom | - |
| Vindex Services Limited | Corporate Nominee Director | 21 Dec 2006 | 17 Apr 2007 | United Kingdom | - |
| William Iain Watson | Director | 17 May 2007 | 31 Mar 2010 | British | 57 years |
