| Barbara Ruskin | Secretary | 1 Dec 2020 | 28 Sept 2022 | - | - |
| Company Directors Limited | Corporate Nominee Director | 29 Apr 1998 | 29 Apr 1998 | United Kingdom | - |
| David Horn Solomon | Director | 9 Jan 2019 | 8 Jan 2020 | Canadian | 65 years |
| David John Ellam | Director | 18 Jul 2016 | 9 Jan 2019 | British | 62 years |
| David John Ellam | Secretary | 18 Jul 2016 | 9 Jan 2019 | - | - |
| Eric James Boyle | Director | 29 Apr 1998 | 20 May 2004 | British | 72 years |
| Giles Victor Campion | Director | 21 Dec 2020 | 1 Jul 2023 | British | 71 years |
| Iain Gladstone Ross | Director | 8 Jan 2020 | 21 Dec 2020 | British | 71 years |
| Ian Nils Hessey Rugheiter | Director | 26 May 2004 | 1 Jul 2008 | Canadian | 72 years |
| Jeremy Anthony Philip Randall | Director | 27 Feb 2010 | 4 Dec 2013 | British | 61 years |
| John Mark Lucas | Director | 1 Jul 2008 | 12 Feb 2010 | British | 59 years |
| Jon Melvyn Davies | Director | 29 Apr 1998 | 27 Feb 2010 | British | 69 years |
| Jon Melvyn Davies | Secretary | 29 Apr 1998 | 27 Feb 2010 | British | - |
| Mark Rothera | Director | 21 Dec 2020 | 22 Feb 2022 | British | 63 years |
| Max Stephen Herrmann | Director | 24 May 2010 | 2 Aug 2012 | British | 59 years |
| Michael John Kilpatrick | Director | 21 Mar 2001 | 5 Dec 2002 | British | 76 years |
| Robert Quinn | Secretary | 9 Jan 2019 | 1 Dec 2020 | - | - |
| Sarah Murphy | Secretary | 28 Sept 2022 | 22 Dec 2023 | - | - |
| Stephane Pierre Paul Jallat | Director | 21 Sept 2001 | 30 Sept 2002 | French | 60 years |
| Stephen Gerard Donnelly | Director | 21 Mar 2001 | 13 Aug 2001 | Irish | 64 years |
| Temple Secretaries Limited | Corporate Nominee Secretary | 29 Apr 1998 | 29 Apr 1998 | - | - |
| Tim Freeborn | Secretary | 2 Aug 2012 | 19 Jul 2016 | - | - |
| Timothy Charles Adrian Freeborn | Director | 2 Aug 2012 | 19 Jul 2016 | British | 67 years |