| Alan David Yuille | Secretary | 1 Jun 2015 | 26 Nov 2018 | - | - |
| Andrew Mark Parsons | Director | 12 Nov 2012 | 31 May 2017 | British | 61 years |
| Gregor Ninian Stewart | Director | 26 May 2011 | 5 Oct 2012 | British | 62 years |
| Hackwood Directors Limited | Corporate Nominee Director | 24 Sept 1999 | 14 Oct 1999 | United Kingdom | - |
| Hackwood Secretaries Limited | Corporate Nominee Director | 24 Sept 1999 | 14 Oct 1999 | United Kingdom | - |
| Hackwood Secretaries Limited | Corporate Nominee Secretary | 24 Sept 1999 | 14 Oct 1999 | United Kingdom | - |
| James Christopher Steuart Hillman | Director | 26 Oct 2018 | 31 Aug 2023 | British | 57 years |
| James Edward Clatworthy | Director | 1 Jan 2011 | 29 Feb 2016 | British | 59 years |
| James Masson Black | Director | 27 Jan 2014 | 25 Jun 2016 | British | 62 years |
| Joanne Dawson | Director | 31 Mar 2006 | 1 Jun 2009 | British | 64 years |
| John Stephen Edwards | Director | 24 May 2001 | 31 Mar 2006 | British | 71 years |
| John Van Der Wielen | Director | 1 Jun 2009 | 28 May 2010 | Australian | 60 years |
| Keith William Abercromby | Director | 28 Apr 2003 | 17 Oct 2005 | British | 62 years |
| Kerr Luscombe | Director | 28 May 2010 | 25 May 2011 | British | 61 years |
| Marie Elaine Williams | Director | 10 Mar 2016 | 26 Oct 2018 | British | 47 years |
| Mohammed Bilal Bhutta | Director | 31 Dec 2022 | 10 Apr 2025 | British | 47 years |
| Peter John Veale | Secretary | 4 Aug 2000 | 23 Mar 2009 | British | - |
| Robert Philippe Walther | Director | 14 Oct 1999 | 31 Oct 2001 | British | 83 years |
| Roland Gordon Ward | Director | 14 Oct 1999 | 28 Apr 2003 | British | 81 years |
| Sally Mayer | Secretary | 23 Mar 2009 | 1 Jun 2015 | Other | - |
| Sean William Lowther | Director | 24 Jun 2016 | 31 Dec 2022 | British | 66 years |
| Stephen James Mcgee | Director | 10 Feb 2012 | 9 Dec 2014 | British | 53 years |
| Steven James Colsell | Director | 17 Aug 2006 | 1 Jun 2009 | British | 62 years |
| Susan Annabel Margaret Fogarty | Secretary | 14 Oct 1999 | 4 Aug 2000 | British | - |
| Toby Emil Strauss | Director | 22 Nov 2011 | 27 Jan 2014 | British | 67 years |
| Trevor Anthony Leonard | Director | 1 Jun 2009 | 31 Dec 2010 | United Kingdom | 67 years |
| William Anthony Beadle | Director | 17 Oct 2005 | 17 Aug 2006 | British | 77 years |