| Aderemi Ladega | Secretary | 11 Apr 2005 | 30 Jun 2010 | British | - |
| Alan Henry Haywood | Director | 1 Nov 2014 | 1 Jan 2017 | British | 60 years |
| Andrea Margaret Thomas | Secretary | 22 Jan 2001 | 11 Apr 2005 | Other | - |
| Anthony Bryan Hayward | Director | 22 Jan 2001 | 1 Jan 2003 | British | 69 years |
| Brian Gilvary | Director | 1 Jan 2012 | 8 Jul 2019 | British | 64 years |
| Byron Elmer Grote | Director | 21 Nov 2002 | 1 Jan 2012 | British And Us Citiz | 78 years |
| Christopher Kuangcheng Gerald Eng | Secretary | 23 Mar 2009 | 30 Jun 2010 | - | - |
| David James Bucknall | Director | 1 Jan 2012 | 1 Nov 2014 | British | 58 years |
| David James Bucknall | Director | 8 Jul 2019 | 19 Aug 2020 | British | 58 years |
| Debasish Satya Sanyal | Director | 1 Aug 2007 | 1 Jan 2012 | British | 61 years |
| Douglas Patrick Chapman | Director | 22 Jan 2001 | 31 Jul 2007 | British | 76 years |
| Francis William Michael Starkie | Director | 29 Mar 2006 | 22 May 2006 | British | 77 years |
| John Gordon Sinclair Buchanan | Director | 22 Jan 2001 | 21 Nov 2002 | British | 83 years |
| Katherine Anne Thomson | Director | 1 Jan 2017 | 31 Mar 2021 | British | 58 years |
| Martin Francis Giles | Director | 1 Jan 2007 | 28 Feb 2019 | British | 65 years |
| Niamh Marie Staunton | Director | 31 Mar 2021 | 1 Jul 2024 | Irish | 48 years |
| Nicholas Mark Hargrave Bamfield | Director | 1 Jan 2003 | 29 Jul 2016 | British | 67 years |
| Richard Alastair Hubbard | Director | 1 Sept 2017 | 31 Dec 2020 | British | 63 years |
| Richard Wheatley | Director | 3 Jul 2019 | 13 Oct 2022 | British | 53 years |
| Yasin Stanley Ali | Secretary | 22 Jan 2001 | 30 Jun 2010 | British | - |