| Allan Robert Foad | Director | 8 Jun 2004 | 31 Oct 2005 | British | 77 years |
| Alyson Elizabeth Mulholland | Secretary | 12 Dec 2017 | 8 Sept 2020 | - | - |
| Andrew John Cumming | Director | 9 Jun 2004 | 26 Apr 2012 | British | 72 years |
| Anthony Brian Vowles | Director | 9 Jun 2004 | 21 May 2008 | British | 75 years |
| Anthony Mark Basing | Director | 7 Jul 2004 | 7 Sept 2009 | British | 75 years |
| Colin Graham Dowsett | Director | 26 Apr 2012 | 22 Nov 2023 | British | 62 years |
| Ian Charles Boulton | Director | 1 Apr 2015 | 22 Jun 2015 | British | 68 years |
| Jon Mark Herbert | Director | 18 Jun 2007 | 26 Apr 2012 | British | 64 years |
| Mark Andrew Grant | Director | 9 Jun 2004 | 16 Jun 2005 | British | 64 years |
| Michael William Joseph | Director | 9 Jun 2004 | 15 Nov 2006 | British | 70 years |
| Michelle Antoinette Angela Johnson | Secretary | 22 May 2013 | 12 Dec 2017 | - | - |
| Patrick John Sherrington | Director | 22 May 2013 | 13 Jun 2016 | British | 53 years |
| Peter Bernard Miles | Director | 8 Jun 2004 | 26 Aug 2005 | British | 81 years |
| Peter Higgins | Director | 7 Sept 2005 | 16 May 2008 | British | 73 years |
| Richard Fowler Pelly | Director | 17 Nov 2005 | 26 Feb 2007 | British | 71 years |
| Robert Sagrott | Director | 16 Dec 2015 | 18 May 2017 | British | 69 years |
| Robin Alexander Isaacs | Director | 23 May 2008 | 13 Dec 2012 | British | 71 years |
| Sharon Noelle Slattery | Secretary | 8 Jun 2004 | 22 May 2013 | Irish | - |
| Simon Christopher Gledhill | Director | 26 Apr 2012 | 6 Mar 2014 | British | 61 years |
| Stephen Ball | Director | 22 May 2013 | 19 Jun 2017 | British | 51 years |
| Timothy John Cooke | Director | 18 Jun 2007 | 14 Aug 2012 | British | 67 years |
