| Alastair Ross Goobey | Director | 20 Jun 2000 | 31 Dec 2001 | British | 81 years |
| Anthony Watson | Director | 20 Jun 2000 | 31 Jan 2006 | British | 81 years |
| Christopher Dean Clark | Director | 27 Jan 2003 | 12 Jul 2006 | British | 52 years |
| Frederick William Le Grice | Secretary | 20 Jun 2000 | 27 Jul 2000 | British | - |
| Gillian Brown | Director | 9 Jul 2004 | 31 May 2005 | British | 63 years |
| Henry Guy Eastman | Director | 20 Jun 2000 | 30 Nov 2001 | British | 71 years |
| Ian Andrew Scorah | Secretary | 27 Jun 2002 | 28 Oct 2003 | British | - |
| Justin Paul Ward | Director | 9 Jul 2004 | 18 May 2009 | British | 57 years |
| Mark Jonathon Anson | Director | 6 Feb 2006 | 26 Jul 2007 | American | 67 years |
| Michelle Simone Green | Secretary | 27 Jul 2000 | 27 Jun 2002 | British | - |
| Nicola Joyce Rutherford | Director | 11 May 2007 | 13 Jul 2010 | British | 51 years |
| Peter Gissel | Director | 22 Oct 2008 | 18 May 2009 | Danish | 63 years |
| Robert Alan Padgett | Director | 20 Jun 2000 | 15 May 2003 | British | 83 years |
| Roderick Alistair Selkirk | Director | 27 Jun 2002 | 18 May 2009 | British | 69 years |
| Roger Michael Gray | Director | 18 Jan 2008 | 19 Jun 2009 | American | 69 years |
| Rupert James Clarke | Director | 13 Sept 2007 | 4 Oct 2010 | British | 68 years |
| Saker Anwar Nusseibeh | Director | 17 Jun 2009 | 13 Jul 2010 | British | 65 years |
| Shane Darren Feeney | Director | 9 Jul 2004 | 18 May 2009 | Canadian | 57 years |
| Simon Robert Cunningham | Director | 10 May 2019 | 15 Dec 2023 | British | 48 years |
| Stephen Allen | Director | 17 Nov 2009 | 7 Aug 2015 | British | 65 years |
| Susan Deborah Leigh Flynn | Director | 29 Oct 2007 | 28 Jun 2010 | British | 70 years |
| Susan Jane Cane | Director | 7 Aug 2015 | 10 May 2019 | British | 68 years |
| Timothy Charles Fedden Thomas | Director | 23 Oct 2008 | 18 May 2009 | British | 54 years |