| Adrian Richard Bull | Director | 6 Jul 2005 | 25 Jan 2008 | British | 69 years |
| Anne Catherine Ramsay | Secretary | 28 Sept 2007 | 31 Mar 2011 | Other | - |
| Colin Michael Exford | Director | 26 Nov 2009 | 23 Jun 2011 | British | 68 years |
| David Alexander John Anderson | Secretary | 6 Jul 2005 | 28 Sept 2007 | British | - |
| David Alexander John Foot | Director | 14 Jun 2018 | 23 Oct 2020 | British | 58 years |
| David Alexander John Foot | Director | 5 Nov 2021 | 6 May 2022 | British | 58 years |
| Geoffrey Alan Quaife | Director | 30 Jun 2010 | 8 Nov 2017 | British | 71 years |
| Giorgia Martina | Director | 5 Nov 2021 | 29 Sept 2022 | Italian | 41 years |
| James Anthony O'halloran | Director | 30 Jun 2010 | 10 Dec 2014 | British | 51 years |
| Jane Elizabeth Mackreth | Secretary | 21 Sept 2006 | 31 Mar 2011 | Other | - |
| Joao Carlos Peres Ferreira Neves | Director | 6 May 2022 | 10 Jul 2023 | Portuguese | 56 years |
| Jonathan Laurence David Carter | Director | 29 Sept 2022 | 10 Jul 2023 | British | 37 years |
| Kevin John Maddick | Director | 29 Jan 2009 | 28 May 2009 | British | 62 years |
| Lee James Mills | Director | 29 Apr 2005 | 6 Jul 2005 | British | 68 years |
| Michael Charles Hobbs | Director | 25 Jan 2008 | 30 Jun 2010 | British | 62 years |
| Michael Peter Francis Osborne | Director | 10 Jul 2023 | 1 May 2025 | British | 46 years |
| Nitesh Mistry | Director | 29 Jan 2009 | 26 Nov 2009 | British | 55 years |
| Peter James Whitby | Director | 26 Mar 2008 | 29 Jan 2009 | English | 61 years |
| Phillip James Hall | Director | 6 Jul 2005 | 26 Mar 2008 | British | 57 years |
| Phillip John Cooper | Director | 30 Jun 2010 | 3 Oct 2011 | British | 77 years |
| Richard Charles Turner | Director | 6 Jul 2005 | 26 Mar 2008 | British | 59 years |
| Robert James Newton | Director | 24 Mar 2014 | 4 May 2018 | British | 70 years |
| Scott Springett | Director | 8 Nov 2017 | 18 Jun 2021 | British | 58 years |
| Sylvia Wen Lynn Wan | Secretary | 6 Jul 2005 | 21 Sept 2006 | British | - |
| Timothy Francis George | Director | 29 Apr 2005 | 6 Jul 2005 | British | 66 years |
| Timothy Francis George | Secretary | 29 Apr 2005 | 6 Jul 2005 | British | - |
| Timothy Richard Elliot | Director | 24 Mar 2010 | 30 Jun 2010 | British | 54 years |
| Vivek Sapra | Director | 6 Jul 2005 | 29 Jan 2009 | British | 60 years |
| Vivek Sapra | Director | 28 May 2009 | 24 Mar 2010 | British | 60 years |
| Wynn Napier Kenrick | Director | 26 Mar 2008 | 30 Jun 2010 | British | 80 years |