| Alan Burge | Director | 22 Mar 2013 | 19 Nov 2013 | British | 69 years |
| Christopher Francis Henry Baker | Director | 14 Nov 2016 | 5 Mar 2018 | British | 71 years |
| Craig Hilton Rodgerson | Director | 22 Mar 2013 | 14 Nov 2016 | British | 62 years |
| David Ian Smart | Director | 1 Sept 2000 | 30 Jun 2008 | British | 63 years |
| Geoffrey Leigh Frost | Director | 11 Jul 1991 | 22 Mar 2013 | British | 90 years |
| Gillian Anne Frost | Director | 11 Jul 1991 | 26 Jul 2000 | British | 88 years |
| James Cowan | Director | 26 Jan 2017 | 5 Mar 2018 | British | 52 years |
| James Harvey Garnham | Director | 9 Mar 2000 | 19 Apr 2000 | British | 64 years |
| James Harvey Garnham | Director | 22 Jan 2003 | 22 Mar 2013 | British | 64 years |
| James Harvey Garnham | Secretary | 7 Jan 2005 | 22 Mar 2013 | British | - |
| Jamie Leigh Radford | Director | 3 Sept 2015 | 1 Sept 2016 | British | 51 years |
| John Arnold Henry Middleton Lawrence | Director | 21 Sept 2009 | 1 Jun 2012 | British | 66 years |
| Jonathan Ashford Frank Dunn | Director | 1 Nov 1999 | 31 Dec 2004 | British | 64 years |
| Jonathan Ashford Frank Dunn | Secretary | 8 May 2000 | 31 Dec 2004 | British | - |
| Matthew Oliver Frost | Director | 26 Jul 2000 | 24 Aug 2006 | British | 49 years |
| Michael Edward Daines | Director | 1 Aug 2001 | 4 Mar 2010 | British | 75 years |
| Michael Patrick Collier | Director | 20 Dec 2013 | 3 Sept 2015 | British | 51 years |
| Michael Peter Smith | Director | 9 Mar 2000 | 31 Jul 2004 | British | 66 years |
| Robert Cyril Steel | Director | 11 Jul 1991 | 8 Mar 2000 | British | 78 years |
| Robert Cyril Steel | Secretary | 14 Jul 1995 | 8 Mar 2000 | British | - |
| Rosemary Marguerite Frost | Director | 11 Jul 1991 | 4 Jan 1995 | British | 110 years |
| Rosemary Marguerite Frost | Secretary | 11 Jul 1991 | 4 Jan 1995 | British | - |
| Sean Alfred Massey | Director | 22 Mar 2013 | 27 Sept 2017 | British | 56 years |
| Stefan John Maynard | Director | 20 Dec 2013 | 5 Mar 2018 | British | 54 years |
| William Leigh Tracey | Director | 1 Aug 2001 | 20 Dec 2007 | British | 73 years |
| William Stephen Mcbrinn | Director | 1 Sept 2016 | 28 Feb 2017 | British | 58 years |