| Aileen Agnes Ivanec | Secretary | 31 Mar 2017 | 11 Sept 2017 | - | - |
| Alison Julie Montague | Director | 24 Jan 2006 | 14 Jul 2006 | British | 64 years |
| Antony David Wilkinson | Director | 25 Nov 2013 | 31 Oct 2016 | British | 60 years |
| David James Hay | Director | 2 Apr 2007 | 26 Oct 2012 | British | 67 years |
| Derek David Dennard | Director | 22 Jan 1991 | 21 Jan 2006 | British | 83 years |
| Frederick Graham Burch | Director | 1 Oct 1994 | 31 Mar 1996 | British | 82 years |
| Graham Neil Turner | Director | 22 Jan 1991 | 21 Jan 2006 | British | 80 years |
| Graham Neil Turner | Secretary | 22 Jan 1991 | 18 Mar 2002 | British | - |
| Iain Alexander Muir Briggs | Secretary | 11 Sept 2017 | 31 Dec 2020 | - | - |
| Iain Alexander Muir Briggs | Director | 11 Sept 2017 | 31 Dec 2020 | British | 47 years |
| Joan Melville | Director | 2 Nov 2015 | 7 Apr 2017 | British | 63 years |
| John Edward Kitchin | Director | 12 Jan 2006 | 3 Jun 2013 | British | 74 years |
| Laurence Rudman | Director | 2 Apr 2007 | 1 Jun 2012 | British | 71 years |
| Linda Marion Mckeown | Director | 8 Oct 2014 | 31 Mar 2017 | British | 59 years |
| Linda Marion Mckeown | Secretary | 21 May 2014 | 31 Mar 2017 | - | - |
| Lisa Marie Watson | Secretary | 1 Oct 2008 | 24 Jan 2014 | British | - |
| Lisa Marie Watson | Director | 1 Apr 2013 | 24 Jan 2014 | British | 50 years |
| Matthew Mortimer | Director | 24 Jan 2006 | 31 May 2007 | British | 63 years |
| Michael William Gearon | Director | 22 Jan 1991 | 21 Jan 2006 | British | 80 years |
| Nigel Raymond Dodds | Director | 2 Apr 2007 | 31 Oct 2008 | British | 55 years |
| Nigel Raymond Dodds | Secretary | 24 Jan 2006 | 1 Oct 2008 | British | - |
| Paul Timothy Wright | Director | 12 Jan 2006 | 4 Sept 2013 | British | 69 years |
| Paul Timothy Wright | Secretary | 18 Mar 2002 | 24 Jan 2006 | British | - |
| Paul Victor Evans | Director | 24 Jan 2006 | 31 Dec 2006 | British | 71 years |
| Stephen John Jameson | Director | 24 Jan 2006 | 1 Oct 2013 | British | 62 years |
| Stephen Maurice Collinson | Director | 14 Feb 2008 | 11 Aug 2020 | British | 68 years |