| Alan Edward Birch | Director | 20 Jan 2010 | 19 Jul 2010 | British | 56 years |
| Alan Edward Birch | Director | 19 Jul 2010 | 26 Mar 2014 | British | 56 years |
| Anthony Jade Phillips | Director | 26 May 2006 | 1 Dec 2007 | British | 52 years |
| Barry Robert Boyde Pope | Director | 18 Oct 2005 | 29 Jun 2007 | British | 78 years |
| Christopher Laskey Fidler | Director | 18 Feb 2005 | 18 Oct 2005 | British | 71 years |
| Christopher Laskey Fidler | Secretary | 18 Feb 2005 | 12 Nov 2007 | British | - |
| James William Ward | Director | 26 May 2006 | 7 May 2008 | British | 74 years |
| Janet Patricia Chamberlain | Director | 29 Jun 2007 | 23 Jan 2008 | British | 76 years |
| John David Harris | Director | 18 Oct 2005 | 1 Oct 2006 | British | 61 years |
| John Graham | Director | 7 May 2008 | 23 May 2018 | British | 73 years |
| Joseph Mark Linney | Director | 18 Oct 2005 | 22 Jul 2015 | British | 68 years |
| Kenneth Andrew Mclellan | Director | 19 Jul 2010 | 1 Apr 2017 | British | 65 years |
| Martin John Malone Watson | Director | 1 Dec 2007 | 1 Dec 2009 | British | 75 years |
| Matthew James Edwards | Director | 27 Jan 2012 | 19 Feb 2014 | British | 41 years |
| Neil Andrew Woodburn | Director | 31 Oct 2016 | 30 Apr 2019 | British | 47 years |
| Paul Roger Hemmings | Director | 26 May 2006 | 10 Nov 2008 | British | 70 years |
| Peter James Holland | Director | 18 Feb 2005 | 18 Oct 2005 | British | 79 years |
| Phillip Joseph Dodd | Director | 23 Jan 2008 | 8 Feb 2013 | British | 71 years |
| Rory William Christie | Director | 1 May 2019 | 25 May 2023 | British | 68 years |
| Sarah Catherine Mcinnes | Director | 22 Jul 2015 | 31 Oct 2016 | British | 51 years |
| Sheila Jamieson Clark | Director | 19 Feb 2014 | 17 Nov 2018 | British | 53 years |
| Terence Ryan | Director | 10 Nov 2008 | 19 Jul 2010 | British | 69 years |