| Adam Joseph Blake | Director | 1 Jan 2019 | 23 Oct 2020 | British | 39 years |
| Adrian Mark Norris | Director | 24 Jan 2013 | 20 Sept 2013 | British | 55 years |
| Alan Kevin Quilter | Director | 30 Nov 1998 | 10 Jul 2000 | British | 75 years |
| Alexander Dunn | Director | 8 Sept 2005 | 17 Sept 2008 | British | 73 years |
| Alexander Dunn | Director | 13 Aug 2010 | 31 Aug 2011 | British | 73 years |
| Alexander Matthew Vallance | Director | 1 Jan 2019 | 28 Nov 2019 | British | 58 years |
| Alistair Robert Mactaggart | Director | 30 Sept 2016 | 1 Jan 2019 | British | 66 years |
| Allan George Jackson | Director | 22 Aug 2006 | 17 Sept 2008 | British | 60 years |
| Andrew Bord | Director | 24 Jun 2015 | 30 Sept 2016 | British | 56 years |
| Andrew John Beer | Director | 24 Jun 2010 | 15 Jun 2013 | British | 62 years |
| Andrew John Bowman | Director | 23 Mar 2016 | 14 Feb 2018 | British | 54 years |
| Andrew John Bowman | Director | 1 Jan 2019 | 28 Nov 2019 | British | 54 years |
| Andrew Jonathan Brown | Director | 28 Jul 2000 | 1 Nov 2000 | British | 82 years |
| Anthony Jonathan Page | Director | 12 Aug 2010 | 24 Jan 2013 | British | 63 years |
| Anthony Maxwell Pell | Director | 8 Nov 2005 | 17 Sept 2008 | British | 65 years |
| Anthony Maxwell Pell | Director | 24 Feb 2009 | 21 Oct 2009 | British | 65 years |
| Anthony Nicholas Greatorex | Director | 1 Sept 2013 | 6 Feb 2015 | British | 58 years |
| Aparajita Ajit | Director | 15 Jul 2022 | 9 Apr 2024 | British | 50 years |
| Brent Escott | Director | 24 Jan 2012 | 25 Jul 2012 | British | 56 years |
| Capita Company Secretarial Services Limited | Corporate Secretary | 1 Nov 2005 | 1 Dec 2008 | - | - |
| Christine Malkin | Director | 15 Jun 1995 | 11 Mar 1998 | British | 65 years |
| Christopher Henry Sporborg | Director | 19 Mar 1992 | 30 Nov 1998 | British | 87 years |
| Christopher Roger Larkin | Director | 19 Mar 1992 | 6 Oct 1997 | British | 82 years |
| Christopher Stuart Ashburn | Director | 24 Aug 2018 | 1 Jan 2019 | British | 58 years |
| Damian James Scally | Director | 23 Oct 2020 | 1 Sept 2021 | British | 53 years |
| David Keith Rigby | Director | 5 Dec 2002 | 26 Apr 2005 | British | 66 years |
| David Raymond Jewell | Director | 24 Mar 2005 | 13 Jul 2007 | British | 80 years |
| Dermot James Joyce | Director | 19 May 2004 | 31 May 2007 | British | 61 years |
| Douglas Lindsay Hay Laver | Director | 6 Nov 2009 | 14 Jun 2012 | British | 61 years |
| Eastgate Insurance Services Limited | Corporate Secretary | 24 Mar 1999 | 2 Apr 2001 | United Kingdom | - |
| Edward Dixon Box Wright | Director | 19 Mar 1992 | 12 Feb 1998 | British | 73 years |
| Emmanuel John Olympitis | Director | 30 Nov 1998 | 25 Jun 1999 | British | 78 years |
| Gordon Mark Hurst | Director | 1 Nov 2000 | 19 May 2004 | British | 64 years |
| Gordon Mark Hurst | Secretary | 2 Apr 2001 | 31 Oct 2005 | British | - |
| Helen Margaret Withers | Director | 12 Aug 1997 | 28 Jul 2000 | British | 66 years |
| Helen Margaret Withers | Secretary | 19 Nov 1997 | 24 Mar 1999 | British | - |
| Ian Edward Jarvis | Director | 3 Jan 2014 | 6 Feb 2015 | British | 55 years |
| Ian Edward Jarvis | Director | 4 Jun 2015 | 23 Mar 2016 | British | 55 years |
| Iftikhar Ahmed | Director | 25 Jun 2010 | 14 Oct 2011 | British | 60 years |
| James D'arcy Vincent | Director | 22 May 2015 | 1 Jan 2019 | British | 60 years |
| James Maxwell Carruthers | Director | 30 Nov 1998 | 18 Aug 2000 | British | 72 years |
| Jason Neville Timothy Richards | Director | 24 Mar 2005 | 25 Jan 2007 | British | 58 years |
| Jeremy Frazer Locke | Director | 22 Aug 2006 | 30 Jun 2007 | British | 54 years |
| John Derek Henry | Director | 23 Jul 2010 | 31 Mar 2011 | British | 52 years |
| John Michael May | Director | 19 Mar 1992 | 24 Jun 1994 | British | 71 years |
| John Spillane | Director | 22 Jul 1998 | 28 Jul 2000 | British | 64 years |
| Karen Suzanne Clements | Director | 4 Sept 2013 | 20 May 2015 | British | 63 years |
| Kenneth Edward Randall | Director | 30 Nov 1998 | 1 Nov 2000 | British | 78 years |
| Kevin Andrew Francis | Director | 1 Jan 2019 | 15 Jul 2022 | British | 53 years |
| Lee Jonathan Gladwell | Director | 19 May 2004 | 31 Aug 2005 | British | 68 years |
| Mark Edward Townsend | Director | 29 Sept 2009 | 14 Oct 2011 | British | 54 years |
| Martin John Trainer | Director | 1 Nov 2000 | 21 Nov 2005 | British | 64 years |
| Mathew John Briggs | Director | 22 Jan 2010 | 30 Apr 2010 | British | 58 years |
| Matthew John Briggs | Director | 22 Jan 2010 | 30 Apr 2010 | British | 58 years |
| Michael Charles Nower | Nominee Director | 16 Aug 1991 | 23 Mar 1993 | British | 77 years |
| Michael John Margetts | Director | 11 Jan 2010 | 11 Jan 2010 | British | 61 years |
| Michael John Margetts | Director | 11 Jan 2010 | 28 May 2010 | British | 61 years |
| Nicholas Hurst Page | Director | 16 Sept 1992 | 30 Nov 1998 | British | 74 years |
| Nicolas Norman Bedford | Director | 19 May 2004 | 19 Oct 2009 | British | 67 years |
| Nicolas Norman Bedford | Director | 14 Feb 2018 | 28 Jun 2018 | British | 67 years |
| Paul Richard Martin Pindar | Director | 1 Nov 2000 | 19 May 2004 | British | 67 years |
| Philip Charles Braithwaite | Director | 19 May 2004 | 31 Dec 2005 | British | 75 years |
| Richard Francis Holland | Director | 24 Mar 2005 | 31 Mar 2010 | British | 62 years |
| Richard Gordon Milne | Director | 28 Jul 2000 | 17 Nov 2000 | British | 71 years |
| Richard John Montague-fuller | Director | 13 Jul 2018 | 1 Jan 2019 | British | 56 years |
| Richard John Stevens | Director | 19 Mar 1992 | 7 Jul 1998 | British | 75 years |
| Richard John Stevens | Secretary | 19 Mar 1992 | 19 Nov 1997 | British | - |
| Saleah Hassen Laher | Director | 11 Nov 2005 | 23 Feb 2006 | British | 65 years |
| Stephen Sharp | Director | 21 Jun 2013 | 3 Feb 2014 | British | 61 years |
| Timothy Jennings | Director | 3 Apr 2003 | 31 Dec 2003 | British | 62 years |
| Tom Frans Vanoverschelde | Director | 1 Sept 2021 | 14 Mar 2022 | Belgian | 45 years |
| Tomas Adolfo Romero | Director | 7 Jun 2005 | 4 Aug 2005 | Spanish | 55 years |
| Victor Gysin | Director | 25 Jun 2010 | 14 Oct 2011 | British | 61 years |
| Victor Gysin | Director | 20 May 2015 | 18 Dec 2017 | British | 61 years |
| William Ellsworth Dye | Director | 16 Dec 2002 | 2 Jan 2004 | British | 64 years |