| Andrew James Gray Thomson | Director | 1 Jan 2007 | 19 Mar 2014 | British | 59 years |
| Andrew John Berger-north | Director | 8 Oct 2008 | 5 May 2020 | British | 65 years |
| Christie Baird | Director | 11 Nov 2021 | 25 Feb 2022 | British | 46 years |
| Clare Frances Carson | Secretary | 26 Apr 1999 | 8 Sept 2000 | British | - |
| David John Atkins | Director | 1 Jan 2005 | 1 Oct 2009 | British | 60 years |
| Eps Secretaries Limited | Corporate Secretary | 29 May 1997 | 1 Jul 1997 | United Kingdom | - |
| Geoffrey Harcroft Wright | Director | 1 Jul 1997 | 30 Jun 2006 | British | 83 years |
| Hans Rainer Vogt | Director | 1 Jul 1997 | 31 Dec 1997 | British | 83 years |
| Iain Farlane Sim Harris | Director | 31 Dec 1997 | 21 Nov 2003 | British | 64 years |
| John Andrew Bywater | Director | 30 Oct 1998 | 31 Mar 2007 | British | 79 years |
| John Andrew William Dodds | Director | 1 Sept 1997 | 24 Aug 2001 | British | 70 years |
| Jonathan Michael Emery | Director | 1 Jan 2007 | 8 Oct 2008 | British | 60 years |
| Lawrence Francis Hutchings | Director | 8 Oct 2008 | 28 Sept 2012 | British | 60 years |
| Mark Richard Bourgeois | Director | 17 Mar 2017 | 11 Nov 2021 | British | 58 years |
| Martin Clive Jepson | Director | 8 Oct 2008 | 31 Jul 2011 | British | 64 years |
| Martin Plocica | Director | 1 Oct 2012 | 17 Mar 2017 | American | 64 years |
| Michael John Baker | Director | 1 Aug 2001 | 30 Jun 2006 | British | 63 years |
| Mikjon Limited | Corporate Director | 29 May 1997 | 1 Jul 1997 | United Kingdom | - |
| Nicholas Alan Scott Hardie | Director | 1 Aug 2001 | 14 Oct 2011 | British | 71 years |
| Peter William Beaumont Cole | Director | 1 Jul 1997 | 30 Apr 2019 | British | 67 years |
| Philip David Harold Brown | Director | 1 Jul 1997 | 31 May 1999 | British | 65 years |
| Robert John Godwin Richards | Director | 1 Jul 1997 | 30 Oct 1998 | British | 70 years |
| Simon Charles Travis | Director | 30 Apr 2019 | 7 Aug 2025 | British | 57 years |
| Simon James Betty | Director | 5 May 2020 | 11 Dec 2020 | British | 51 years |
| Stuart John Haydon | Secretary | 1 Jul 1997 | 26 Apr 1999 | British | - |
| Stuart John Haydon | Secretary | 8 Sept 2000 | 22 Sept 2011 | British | - |
| Warren Stuart Austin | Director | 25 Apr 2014 | 11 Nov 2021 | British | 60 years |