| Alan Henry Haywood | Director | 19 Nov 2003 | 1 Sept 2005 | British | 60 years |
| Alan Philip Martin | Director | 1 Jan 2010 | 1 Jul 2022 | British | 55 years |
| Alison Sheila Young | Director | 2 Nov 2017 | 30 Nov 2023 | British | 61 years |
| Andrea Margaret Thomas | Secretary | 1 Feb 2008 | 23 Mar 2009 | Other | - |
| Christina Campbell Verchere | Director | 10 May 2014 | 1 Mar 2018 | American | 55 years |
| Christopher Kuangcheng Gerald Eng | Secretary | 23 Mar 2009 | 30 Jun 2010 | Other | - |
| Dawn Noel | Secretary | 1 Feb 2006 | 3 Nov 2006 | British | - |
| Douglas Martin Rotenberg | Director | 15 Jul 2003 | 16 Dec 2005 | Us Citizen | 63 years |
| Emma Louise Delaney-mc Knight | Director | 27 Feb 2015 | 1 May 2017 | Irish | 53 years |
| Fiona Anne Macleod | Director | 15 Jul 2003 | 19 Nov 2003 | British | 59 years |
| Herbert Steven Vogel | Director | 31 Jan 2008 | 2 Jan 2009 | American | 66 years |
| James Stephen Blythe | Director | 11 May 2010 | 1 Dec 2014 | British | 71 years |
| Janet Elvidge | Secretary | 3 Nov 2006 | 1 Feb 2008 | Other | - |
| John Charles Hughes | Director | 13 Oct 2009 | 11 May 2010 | British | 65 years |
| John Harold Bartlett | Director | 19 Oct 2009 | 11 May 2010 | British | 73 years |
| John Harold Bartlett | Director | 19 Oct 2009 | 1 Jan 2016 | British | 73 years |
| John Mcdowell Brown | Director | 13 Oct 2009 | 31 Dec 2009 | British | 70 years |
| John Murphy Brame | Director | 11 Jun 2014 | 30 Apr 2018 | American | 65 years |
| Martin Robert Illingworth | Director | 19 Oct 2009 | 31 Jan 2014 | British | 69 years |
| Nader Zaki | Director | 1 Mar 2018 | 1 Jul 2022 | Egyptian | 53 years |
| Namig Aliyev | Director | 1 Jul 2022 | 1 Dec 2023 | British | 48 years |
| Sandra Jean Macrae | Director | 1 Jan 2016 | 28 Aug 2020 | British | 63 years |
| Simon Philip Cattle | Director | 1 Feb 2006 | 13 Oct 2009 | British | 68 years |
| Svetlana Pereverzeva | Director | 30 Apr 2018 | 22 Mar 2021 | British | 54 years |
| Timothy Mark Lucas Reading | Director | 1 Feb 2009 | 13 Oct 2009 | British | 68 years |
| Wilhelmus Petrus Martinus Maria Donkers | Director | 1 Sept 2005 | 30 Nov 2006 | Dutch | 64 years |
| William Wei Lee Lin | Director | 13 Oct 2009 | 10 May 2014 | American | 59 years |
| Xinchao Wu | Director | 1 Jul 2022 | 30 Nov 2023 | American | 60 years |
| Yasin Stanley Ali | Secretary | 15 Jul 2003 | 30 Jun 2010 | Other | - |
