| Andrew David Smith | Director | 18 Jul 2012 | 14 Feb 2014 | British | 50 years |
| Andrew Marc Jones | Director | 28 Jul 2005 | 6 Nov 2009 | British | 58 years |
| Anthony Braine | Director | 18 Dec 2006 | 8 May 2007 | British | 69 years |
| Christopher Michael John Forshaw | Director | 18 Dec 2006 | 8 May 2007 | British | 77 years |
| Harold Raymond Mould | Director | 2 Oct 1995 | 28 Jul 2005 | British | 86 years |
| Humphrey James Montgomery Price | Director | 2 Oct 1995 | 28 Jul 2005 | British | 84 years |
| Lucinda Margaret Bell | Director | 22 Nov 2006 | 8 May 2007 | British | 62 years |
| Mark Andrew Stirling | Director | 28 Jul 2005 | 6 Nov 2009 | British | 63 years |
| Martin Francis Mcgann | Director | 26 Feb 2003 | 7 Oct 2005 | British | 65 years |
| Nigel Mark Webb | Director | 22 Nov 2006 | 8 May 2007 | British | 63 years |
| Patrick Lionel Vaughan | Director | 13 Feb 1998 | 8 Aug 2005 | British | 79 years |
| Peter Courtenay Clarke | Director | 22 Nov 2006 | 8 May 2007 | British | 60 years |
| Philip John Martin | Director | 13 Oct 2009 | 31 Oct 2016 | British | 69 years |
| Philip John Martin | Secretary | 2 Oct 1995 | 31 Oct 2016 | British | - |
| Sarah Morrell Barzycki | Director | 22 Nov 2006 | 8 May 2007 | British | 68 years |
| Timothy Andrew Roberts | Director | 22 Nov 2006 | 8 May 2007 | British | 62 years |
| Valentine Tristram Beresford | Director | 28 Jul 2005 | 6 Nov 2009 | British | 61 years |