| Alan James Chaplin | Director | 3 Mar 2017 | 26 Sept 2017 | British | 65 years |
| Alexander John Hynes | Director | 1 Apr 2016 | 3 Mar 2017 | British | 49 years |
| Biccor Ltd | Corporate Nominee Secretary | 11 Dec 2001 | 11 Dec 2001 | United Kingdom | - |
| Christopher Derek Dyne Burchell | Director | 3 Dec 2015 | 9 Oct 2020 | British | 53 years |
| David Brown | Director | 26 Sept 2017 | 1 Mar 2020 | British | 61 years |
| David Christopher John Applegarth | Director | 4 Feb 2004 | 30 Apr 2015 | British | 73 years |
| David Paul Turner | Director | 4 Feb 2004 | 30 Jun 2011 | British | 76 years |
| David Paul Turner | Secretary | 11 Dec 2001 | 18 Jan 2005 | British | - |
| David Robert Martin | Director | 11 Dec 2001 | 4 Feb 2004 | British | 75 years |
| Duncan Mcdonald | Nominee Director | 11 Dec 2001 | 11 Dec 2001 | British | 62 years |
| Elizabeth Anne Davies | Secretary | 12 Jan 2007 | 16 Dec 2013 | British | - |
| Elizabeth Anne Thorpe | Secretary | 18 Jan 2005 | 12 May 2006 | British | - |
| John Virtue | Secretary | 12 May 2006 | 12 Jan 2007 | British | - |
| Kenneth Mcintyre Carlaw | Director | 30 Jun 2011 | 9 Mar 2016 | British | 64 years |
| Lorna Edwards | Secretary | 16 Dec 2013 | 12 Jun 2020 | - | - |
| Mary Elisabeth Courtney Hewitt | Director | 17 Oct 2017 | 1 Jan 2020 | British | 47 years |
| Peter Charles Davison | Director | 23 Jun 2015 | 10 Aug 2016 | British | 61 years |
| Peter Thomas Telford | Director | 19 Feb 2004 | 1 Sept 2008 | British | 65 years |
| Richard Charles Vyvyan Harrison | Director | 11 Jul 2014 | 12 Dec 2016 | British | 59 years |
| Richard Graham Allan | Director | 31 May 2018 | 1 Mar 2020 | British | 53 years |
| Richard Henry Mcclean | Director | 3 Dec 2015 | 14 Dec 2017 | British | 63 years |
| Robert William Holland | Director | 3 Feb 2011 | 15 Apr 2013 | British | 76 years |
| Robert Wynne Phillips | Director | 1 Apr 2016 | 31 May 2018 | British | 52 years |
| Roger Brian Cobbe | Director | 4 Jan 2005 | 31 Dec 2017 | British | 75 years |
| Stephen Philip Lonsdale | Director | 11 Dec 2001 | 19 Feb 2004 | British | 69 years |
| Teresa Maria Broxton | Director | 7 Jan 2019 | 1 Mar 2020 | British | 62 years |
| Timothy Simon Bell | Director | 15 Apr 2013 | 21 Mar 2014 | Welsh | 69 years |