| Adrian Alastair Montague | Director | 26 Oct 2004 | 31 Jul 2005 | British | 77 years |
| Andrew Christopher Pitt | Director | 1 Jul 2018 | 30 Sept 2020 | British | 66 years |
| Andrew Harold Mitchell | Director | 1 Sept 2009 | 14 Jul 2014 | British | 65 years |
| Andrew William Lewis Wolstenholme | Director | 1 Aug 2011 | 31 Mar 2018 | British | 66 years |
| Anne Marie Mcmeel | Director | 1 Jul 2018 | 30 Sept 2020 | British | 71 years |
| Anthony Jan Michael Meggs | Director | 14 Jan 2019 | 30 Sept 2020 | British | 73 years |
| Christopher John Benson | Director | 24 Oct 2001 | 26 Oct 2004 | British | 92 years |
| Christopher Michael Sexton | Director | 1 Apr 2018 | 30 Jan 2020 | British | 70 years |
| Daniel Michael Gerald Moylan | Director | 3 Jul 2013 | 18 May 2016 | British | 69 years |
| David Charles Hendry | Director | 10 Nov 2018 | 20 Dec 2019 | British | 68 years |
| David Owen Allen | Director | 3 Mar 2009 | 8 Oct 2015 | British | 53 years |
| Douglas Edwin Oakervee | Director | 13 Dec 2005 | 31 May 2009 | British | 85 years |
| Evelyn Hugh Norie | Director | 24 Jan 2006 | 22 Jul 2008 | British | 84 years |
| George William Douglas Sutherland | Director | 27 Sept 2002 | 26 Oct 2004 | British | 72 years |
| Glynn Edward Barton | Director | 19 Dec 2022 | 17 May 2024 | British | 47 years |
| Graham William Plant | Director | 1 Aug 2008 | 14 Aug 2009 | British | 79 years |
| Hackwood Directors Limited | Corporate Nominee Director | 8 May 2001 | 1 Aug 2001 | United Kingdom | - |
| Hackwood Secretaries Limited | Corporate Nominee Secretary | 8 May 2001 | 1 Aug 2001 | United Kingdom | - |
| Heather Victoria Rabbatts | Director | 1 Aug 2008 | 12 Aug 2014 | British | 70 years |
| Howard Ernest Carter | Secretary | 30 Sept 2020 | 29 Sept 2023 | - | - |
| Howard Geoffrey Smith | Director | 15 Dec 2022 | 3 Oct 2025 | British | 61 years |
| Ian Arthur Brown | Director | 1 Aug 2001 | 31 Jul 2008 | British | 79 years |
| Ian Arthur Brown | Director | 1 Apr 2011 | 30 Sept 2014 | British | 79 years |
| James Bruce Crawford | Director | 30 Jan 2020 | 30 Sept 2020 | British | 60 years |
| Jay Herbert Walder | Director | 1 Aug 2001 | 23 Feb 2007 | American | 66 years |
| Jayne Eleanor Mcgivern | Director | 1 Sept 2014 | 30 Sept 2015 | British | 65 years |
| Jim Kelly Steer | Director | 9 Aug 2002 | 26 Oct 2004 | British | 77 years |
| John Douglas Carter | Director | 26 Oct 2004 | 24 Jan 2006 | Us Citizen | 79 years |
| John Keith Berryman | Director | 1 Aug 2008 | 3 Mar 2009 | British | 78 years |
| Joseph Anthony Dwyer | Director | 1 Aug 2008 | 30 Apr 2012 | British | 86 years |
| Josephine Clare Valentine | Director | 10 Oct 2019 | 30 Sept 2020 | British | 67 years |
| Kathryn Cearns | Director | 26 Oct 2019 | 30 Sept 2020 | British | 61 years |
| Mark Christopher Fell | Secretary | 1 May 2007 | 30 Apr 2018 | British | - |
| Mark Wild | Director | 22 Sept 2016 | 31 May 2022 | British | 60 years |
| Martin Anthony Arney | Secretary | 11 Sept 2003 | 1 May 2007 | British | - |
| Mathew Robert Duncan | Director | 8 Oct 2015 | 9 Nov 2018 | Australian | 63 years |
| Michael John Cassidy | Director | 1 Aug 2008 | 30 Jun 2018 | British | 78 years |
| Michael John Fuhr | Director | 26 Oct 2004 | 1 Aug 2008 | British | 76 years |
| Michael John Grant | Director | 1 Aug 2001 | 17 Dec 2001 | British | 72 years |
| Michael Stewart Hodgkinson | Director | 8 Jan 2009 | 17 Jun 2012 | British | 81 years |
| Nicholas George Newton | Director | 11 Jan 2002 | 9 Aug 2002 | British | 79 years |
| Olawale Nelson Ogunshakin | Director | 1 Jul 2018 | 30 Sept 2020 | British | 65 years |
| Pamela Elizabeth Alexander | Director | 1 Dec 2015 | 30 Jun 2018 | British | 71 years |
| Patrick Crawford | Director | 1 Aug 2008 | 1 Aug 2011 | British | 73 years |
| Peter George Hansford | Director | 1 Aug 2001 | 27 Sept 2002 | British | 71 years |
| Peter Gerard Hendy | Director | 16 Feb 2006 | 31 Jul 2008 | British | 72 years |
| Phil Gaffney | Director | 1 Apr 2011 | 30 Sept 2020 | British | 78 years |
| Richard John Morris | Director | 1 Aug 2001 | 20 Sept 2001 | British | 77 years |
| Robert Archie Jennings | Director | 30 Apr 2009 | 29 Apr 2019 | British | 70 years |
| Robert David Holden | Director | 1 Apr 2009 | 10 Jul 2011 | British | 69 years |
| Robert Raymond Kiley | Director | 1 Aug 2001 | 31 Jan 2006 | American | 90 years |
| Robert Wynne Linnard | Director | 1 Aug 2001 | 22 Mar 2002 | British | 72 years |
| Sarah Anne Atkins | Director | 16 Apr 2019 | 30 Sept 2020 | British | 70 years |
| Simon Alistair Wright | Director | 14 Jul 2014 | 19 Nov 2018 | British | 70 years |
| Simon David Kilonback | Director | 30 Sept 2020 | 29 Apr 2022 | British | 51 years |
| Stephen David Allen | Director | 23 Feb 2007 | 1 Aug 2008 | British | 59 years |
| Stephen Michael Livingstone | Director | 18 Jul 2019 | 30 Sept 2020 | British | 64 years |
| Steven Richard Bowker | Director | 11 Jan 2002 | 10 Sept 2004 | British | 59 years |
| Susan Margaret Beadles | Secretary | 1 May 2018 | 31 Jan 2022 | - | - |
| Terence Keith Morgan | Director | 1 Jun 2009 | 5 Dec 2018 | British | 77 years |
| Terence Malcolm Hill | Director | 1 Sept 2011 | 30 Jun 2018 | British | 77 years |
| Timothy John Thirlwall | Director | 26 Oct 2004 | 31 Jul 2008 | British | 82 years |
| Toni Louisa Eastland | Secretary | 1 Aug 2001 | 24 Jun 2002 | British | - |
| William Henry Snow | Secretary | 24 Jun 2002 | 11 Sept 2003 | British | - |
| Wyvill Richard Nicolls (nick) Raynsford | Director | 14 Jan 2019 | 30 Sept 2020 | British | 80 years |