| Adam Bjorn Webster | Director | 3 Mar 2017 | 10 Mar 2017 | British | 53 years |
| Adrian Perry | Director | 3 Mar 2017 | 10 Mar 2017 | British | 67 years |
| Charles David Clarke | Director | 25 Apr 2016 | 3 Mar 2017 | British | 43 years |
| Claire Ann Souch | Director | 25 Apr 2016 | 3 Mar 2017 | British | 55 years |
| Clare Spike | Secretary | 29 May 1991 | 1 Mar 1993 | British | - |
| David Hendry | Director | 12 Mar 1997 | 30 Apr 2000 | British | 65 years |
| David Martin Maxfield Dutton | Director | 25 Apr 2016 | 3 Mar 2017 | British | 84 years |
| Geoffrey Dickinson | Director | 30 Jun 2015 | 14 Sept 2015 | British | 65 years |
| Ian James Cuthbertson | Director | 12 Mar 1997 | 7 Dec 2001 | British | 76 years |
| Ian James Cuthbertson | Secretary | 12 Mar 1997 | 13 Apr 1999 | British | - |
| Ian Stokes | Director | 23 Jun 2006 | 28 Sept 2010 | British | 63 years |
| Jason William Futers | Director | 25 Apr 2016 | 3 Mar 2017 | British | 57 years |
| John Edwin Clarke | Director | 12 Mar 1997 | 30 Sept 1997 | British | 77 years |
| John Moult | Director | 4 Jun 1993 | 5 Aug 1993 | British | 79 years |
| Mark Julius Alcock | Director | 6 Nov 2001 | 23 Jun 2006 | British | 73 years |
| Mark Robert Carr | Director | 28 Sept 2010 | 30 Jun 2015 | British | 61 years |
| Mbc Nominees Limited | Corporate Nominee Director | 29 May 1991 | 29 May 1991 | United Kingdom | - |
| Mbc Secretaries Limited | Corporate Nominee Secretary | 29 May 1991 | 29 May 1991 | United Kingdom | - |
| Michael John Sicely | Director | 6 Nov 2001 | 30 Jun 2008 | British | 63 years |
| Michael Lance Cooke | Director | 12 Mar 1997 | 23 Jun 2006 | British | 69 years |
| Neil Howard Stewart | Director | 1 Mar 1993 | 4 Jun 1993 | British | 60 years |
| Nicholas Paul Ratcliffe | Secretary | 28 Sept 2010 | 14 Sept 2015 | - | - |
| Nicholas Paul Ratcliffe | Director | 23 Jun 2006 | 25 Apr 2016 | British | 54 years |
| Nuala Regina Stewart | Secretary | 29 May 1994 | 12 Mar 1997 | British | - |
| Nuala Regina Symes | Secretary | 1 Mar 1993 | 29 May 1994 | British | - |
| Nuala Stewart | Director | 30 Oct 1995 | 12 Mar 1997 | British | 70 years |
| Paul Sykes | Director | 25 Apr 2016 | 11 Jan 2017 | American | 61 years |
| Roman Hohl | Director | 5 Nov 2015 | 25 Apr 2016 | Swiss | 55 years |
| Sally Anne Muddiman | Secretary | 13 Apr 1999 | 28 Sept 2010 | British | - |
| Stephen John Stout | Director | 25 Apr 2016 | 3 Mar 2017 | British | 66 years |
| Steven Mark Fereday | Director | 29 May 1991 | 1 Mar 1993 | British | 66 years |
| William Richard Flint | Director | 16 Sept 2015 | 30 Jun 2016 | British | 57 years |
| William Richard Flint | Director | 3 Mar 2017 | 10 Mar 2017 | British | 57 years |