| Arthur Robin Winwood Tomkins | Director | 24 Sept 1998 | 18 Jul 2002 | British | 99 years |
| David Charles Johnson | Director | 8 Jan 1992 | 18 Aug 1998 | British | 90 years |
| David Charles Tween | Director | 18 Jul 2002 | 16 Nov 2006 | British | 71 years |
| David Charles Tween | Secretary | 18 Jul 2002 | 16 Nov 2006 | British | - |
| David Eardley | Director | 1 Oct 2007 | 8 Mar 2010 | British | 56 years |
| David Eardley | Director | 26 Feb 2012 | 23 Oct 2015 | British | 56 years |
| David John Bailey | Director | 8 Jan 1992 | 7 Apr 1993 | British | 76 years |
| Duncan James Langlands Abbot | Director | 22 Jul 1994 | 18 Aug 1998 | British | 70 years |
| Duncan James Langlands Abbot | Secretary | 8 Jan 1992 | 18 Aug 1998 | British | - |
| Gary Martin Ennis | Director | 31 Mar 2010 | 21 Sept 2024 | Irish | 56 years |
| Gordon Robb Riddock | Director | 27 Jul 2007 | 1 Oct 2007 | British | 70 years |
| James Richard Barnes | Director | 16 Nov 2006 | 2 Apr 2009 | British | 60 years |
| James Richard Barnes | Secretary | 16 Nov 2006 | 2 Apr 2009 | British | - |
| John Humphrey Gunn | Director | 8 Jan 1992 | 15 Jul 1994 | British | 83 years |
| John Neil Hart | Secretary | 12 Dec 1991 | 8 Jan 1992 | British | - |
| Karl Pickering | Director | 18 Jul 2002 | 21 Dec 2004 | British | 67 years |
| Keith Joseph Parrett | Director | 8 Mar 2010 | 26 Feb 2012 | British | 70 years |
| Laurence Dent | Secretary | 8 Mar 2010 | 31 Dec 2010 | - | - |
| Mbc Nominees Limited | Corporate Nominee Director | 10 Dec 1991 | 12 Dec 1991 | United Kingdom | - |
| Mbc Secretaries Limited | Corporate Nominee Secretary | 10 Dec 1991 | 12 Dec 1991 | United Kingdom | - |
| Neil Cooper | Director | 23 Nov 2015 | 19 Jan 2017 | British | 58 years |
| Peter Brian Edmondson | Director | 12 Dec 1991 | 18 Jul 2002 | British | 80 years |
| Peter James Kemmann-lane | Director | 16 Nov 2012 | 23 Oct 2015 | British | 56 years |
| Richard Arthur Lockwood | Director | 8 Jan 1992 | 7 Apr 1993 | British | 82 years |
| Richard Michael Burrows | Director | 18 Jul 2002 | 13 Apr 2007 | British | 57 years |
| Robert William Smith | Secretary | 24 Aug 1998 | 18 Jul 2002 | British | - |
| Sinead Margaret Condron | Director | 8 Mar 2010 | 16 Nov 2012 | Irish | 49 years |
| Stuart Andrew Bailey | Director | 21 Dec 2004 | 27 Jul 2007 | British | 74 years |