| Alan Gilbert Goodman | Director | 16 Oct 1996 | 2 Jan 2001 | British | 74 years |
| Alan John Kingsman | Director | 16 Oct 1996 | 5 May 2011 | British | 75 years |
| Alexander David Lewis | Director | 3 Apr 2008 | 24 May 2011 | British | 63 years |
| Andrew Brian Wood | Director | 6 Mar 1997 | 9 Feb 2012 | British | 67 years |
| Andrew Brian Wood | Secretary | 6 Mar 1997 | 9 Feb 2012 | British | - |
| Andrew John Allars | Director | 25 Mar 1998 | 2 Mar 2004 | British | 68 years |
| Andrew John William Heath | Director | 1 Jan 2010 | 27 May 2021 | British | 77 years |
| Brian Mansel Richards | Director | 16 Oct 1996 | 26 Jun 1998 | British | 93 years |
| Catherine Moukheibir | Director | 14 Dec 2021 | 24 Jun 2024 | Lebanese | 66 years |
| Daniel Bruce Soland | Director | 7 May 2015 | 5 Jan 2016 | Usa | 67 years |
| Douglas James Jolly | Director | 25 May 2001 | 2 Mar 2004 | British | 78 years |
| John Andrew Dawson | Director | 1 Aug 2008 | 27 May 2022 | British | 66 years |
| June Clark | Director | 16 Oct 1996 | 8 May 1997 | British | 78 years |
| Leone Patterson | Director | 1 May 2023 | 31 Dec 2024 | American | 63 years |
| Lorenzo Tallarigo | Director | 1 Feb 2016 | 23 Jun 2020 | Italian | 74 years |
| Mark Berninger | Director | 12 Feb 1999 | 1 Jan 2010 | American | 77 years |
| Martin Henry Diggle | Director | 4 Oct 2012 | 3 Feb 2021 | South African | 63 years |
| Michael Mcdonald | Director | 2 Feb 2006 | 28 Aug 2008 | British | 72 years |
| Michael Reuben Hayden | Director | 15 Jul 2021 | 24 Jun 2024 | Canadian | 74 years |
| Michael Stuart Naylor | Director | 1 Jul 2008 | 6 Jun 2013 | British | 62 years |
| Neill Moray Mackenzie | Director | 16 Oct 1996 | 30 Nov 2002 | British | 72 years |
| Neill Moray Mackenzie | Secretary | 31 Oct 1996 | 6 Mar 1997 | British | - |
| Nicholas Leslie Woolf | Director | 3 Mar 2005 | 30 Jun 2010 | British | 57 years |
| Paul Blake | Director | 1 Jan 2010 | 31 Aug 2016 | British And United States Of America | 78 years |
| Paul Kenneth Durrands | Director | 22 Jun 2000 | 30 Apr 2002 | British | 63 years |
| Peter John Nolan | Director | 1 May 2002 | 2 Jul 2018 | British | 72 years |
| Peter Johnson | Director | 26 Jul 1999 | 1 Jul 2008 | British | 89 years |
| Phillip Nicholas Rodgers | Director | 2 Mar 2004 | 30 Apr 2016 | British | 66 years |
| Pinsent Masons Director Limited | Corporate Nominee Director | 20 Sept 1996 | 16 Oct 1996 | United Kingdom | - |
| Pinsent Masons Secretarial Limited | Corporate Nominee Secretary | 20 Sept 1996 | 16 Oct 1996 | United Kingdom | - |
| Rajan Uppal | Director | 12 Feb 2001 | 13 Mar 2006 | British | 63 years |
| Robert Evgeniev Ghenchev | Director | 24 Jun 2019 | 20 Oct 2025 | British,bulgarian | 42 years |
| Roger Turner | Director | 16 Oct 1996 | 31 Oct 1996 | British | 75 years |
| Roger Turner | Secretary | 16 Oct 1996 | 31 Oct 1996 | British | - |
| Siyamak Rasty | Director | 1 Dec 2020 | 23 Jun 2023 | American | 62 years |
| Stuart Jonathon Brodie Henderson | Director | 1 Jun 2016 | 11 Jun 2025 | British | 66 years |
| Stuart Paynter | Secretary | 1 Oct 2017 | 24 Jul 2019 | - | - |
| Stuart Paynter | Director | 29 Aug 2017 | 2 Sept 2024 | British | 53 years |
| Susan Mary Kingsman | Director | 16 Oct 1996 | 1 Jul 2008 | British | 73 years |
| Timothy William Watts | Director | 10 Feb 2012 | 30 Sept 2017 | British | 68 years |
| Timothy William Watts | Secretary | 10 Feb 2012 | 30 Sept 2017 | British | - |