| Allan William Porter | Director | 10 Feb 2012 | 9 Dec 2013 | British | 68 years |
| Allan William Porter | Secretary | 25 Jan 2011 | 10 Feb 2012 | - | - |
| Elizabeth Barbara Cheney | Secretary | 24 Apr 2017 | 31 Dec 2017 | - | - |
| George David Angus | Secretary | 25 Oct 2004 | 25 Jan 2011 | British | - |
| James Thomas Holliday | Director | 15 Mar 2016 | 31 Dec 2017 | British | 70 years |
| Jeremy Philip Hilton Vickers | Secretary | 19 Jun 2014 | 24 Jul 2015 | - | - |
| Jeremy Philip Hilton Vickers | Director | 23 May 2014 | 24 Jul 2015 | British | 68 years |
| Jeremy Simon Gee | Director | 15 Mar 2017 | 17 Sept 2018 | British | 58 years |
| Keith Tipping | Secretary | 10 Feb 2012 | 10 Apr 2012 | British | - |
| Martin John Sidders | Director | 10 Feb 2012 | 19 Jun 2014 | British | 67 years |
| Martin John Sidders | Secretary | 11 Apr 2012 | 19 Jun 2014 | - | - |
| Michael Blakey | Director | 9 Dec 2013 | 30 Jun 2020 | British | 62 years |
| Michael Raymond Walker | Director | 15 Mar 2016 | 30 Apr 2021 | British | 67 years |
| Nicholas Martin Dulcken | Director | 15 Mar 2016 | 31 Dec 2019 | British | 58 years |
| Richard James Paterson | Director | 9 Dec 2013 | 31 Mar 2020 | British | 68 years |
| Sdg Registrars Limited | Corporate Nominee Director | 27 Sept 2004 | 25 Oct 2004 | United Kingdom | - |
| Sdg Secretaries Limited | Corporate Nominee Secretary | 27 Sept 2004 | 25 Oct 2004 | United Kingdom | - |
| Stephen Stuart Solomon Conway | Director | 25 Oct 2004 | 9 Dec 2013 | British | 77 years |
| Susan Gaynor Hide | Secretary | 24 Jul 2015 | 24 Apr 2017 | - | - |