| Alan John Brown | Director | 9 Dec 2014 | 25 Sept 2018 | Irish,british | 69 years |
| Alessandro Baroni | Director | 15 Jul 2015 | 13 Mar 2018 | Italian | 50 years |
| Derek Smith | Director | 1 Aug 2007 | 4 Dec 2014 | British | 59 years |
| Gary Neil Paver | Director | 20 Mar 2020 | 30 Jun 2023 | British | 58 years |
| Graeme Dominic Stening | Director | 28 Feb 2020 | 18 Dec 2020 | British | 61 years |
| Ian Macarthur Ross | Director | 25 Oct 2006 | 27 Feb 2013 | British | 69 years |
| Ian Macarthur Ross | Secretary | 20 Sept 2006 | 8 Aug 2013 | British | - |
| James Cooper | Director | 20 Nov 2006 | 21 Dec 2011 | British | 81 years |
| John Gilbert Gemmell | Director | 21 Dec 2011 | 18 Dec 2020 | British | 54 years |
| John Joseph Leahy | Director | 14 Dec 2018 | 28 Feb 2020 | Irish | 68 years |
| John Robert Jordan | Director | 28 Apr 2010 | 27 Feb 2013 | Usa | 69 years |
| Julian Charles Huxtable | Director | 21 Dec 2011 | 15 Jul 2015 | British | 55 years |
| Lindsay-anne Mckenzie | Secretary | 31 Mar 2011 | 28 May 2012 | British | - |
| Marianne Hope Lipp | Director | 1 May 2019 | 20 Mar 2020 | British | 55 years |
| Mark Johnstone Walker | Director | 27 Feb 2013 | 1 May 2019 | British | 57 years |
| Michael John Lawrence Salter | Director | 2 Apr 2008 | 21 Dec 2011 | British | 78 years |
| Michael Stephen Brown | Director | 13 Mar 2018 | 14 Dec 2018 | British | 52 years |
| Michael Stephen Brown | Director | 13 Mar 2018 | 14 Dec 2018 | British | 52 years |
| Michal Lech Lange | Director | 15 Jul 2015 | 3 May 2016 | Polish | 41 years |
| Peter Ian France | Director | 1 Oct 2018 | 29 Aug 2023 | British | 57 years |
| Peter Robert Kruppa | Director | 3 May 2016 | 12 Dec 2018 | British | 55 years |
| Philip Hugh Lenon | Director | 25 Oct 2006 | 21 Dec 2011 | British | 65 years |
| Philos Carnio | Director | 21 Dec 2011 | 19 Jan 2012 | British | 42 years |
| Richard Peter Hanson | Director | 14 Dec 2018 | 18 Dec 2020 | British | 69 years |
| Richard Peter Hanson | Director | 19 Jan 2012 | 20 Mar 2012 | British | 69 years |
| Richard William Daw | Director | 25 Oct 2006 | 21 Dec 2011 | British | 57 years |
| Rodney Desmonde Morgan Lenthall | Director | 25 Oct 2006 | 21 Dec 2011 | British | 80 years |
| Travers Smith Limited | Corporate Director | 7 Aug 2006 | 20 Sept 2006 | United Kingdom | - |
| Travers Smith Secretaries Limited | Corporate Director | 7 Aug 2006 | 20 Sept 2006 | United Kingdom | - |
| Travers Smith Secretaries Limited | Corporate Secretary | 7 Aug 2006 | 20 Sept 2006 | United Kingdom | - |
| William Loch | Director | 20 Sept 2006 | 28 May 2012 | British | 66 years |
| William Macdonald Allan | Director | 20 Sept 2006 | 8 Dec 2014 | British | 65 years |
| William Stewart Kennedy | Secretary | 1 Nov 2006 | 31 Mar 2011 | British | - |