| Andrew James Gillespie | Director | 30 Apr 2003 | 30 Jun 2008 | British | 57 years |
| Cape Corporate Director Limited | Corporate Director | 1 Jun 2008 | 10 Oct 2008 | United Kingdom | - |
| Christopher Francis Judd | Secretary | 23 May 2012 | 1 Oct 2013 | - | - |
| Claire Louise Craigie | Director | 30 Apr 2003 | 31 Jul 2008 | British | 62 years |
| Claire Louise Craigie | Secretary | 30 Apr 2003 | 31 Jul 2008 | British | - |
| Francis Keith John Jackson | Director | 1 Jun 1994 | 18 Jul 1996 | British | 77 years |
| Glyn Rees Williams | Director | 25 Mar 1991 | 1 Mar 1997 | British | 78 years |
| Glyn Rees Williams | Secretary | 25 Mar 1991 | 1 Jun 1994 | British | - |
| Ian Richard Widdowson | Director | 31 Dec 1998 | 30 Apr 2003 | British | 73 years |
| Jeremy Peter Gartside | Director | 25 Mar 1991 | 1 Mar 1997 | British | 83 years |
| Jeremy Philip Gorman | Secretary | 31 Mar 2011 | 23 May 2012 | - | - |
| Jeremy Rhodes | Secretary | 31 Jul 2008 | 6 Oct 2008 | British | - |
| Lucy Finch Turner | Secretary | 6 Oct 2008 | 31 Mar 2011 | British | - |
| Mark Hooper | Director | 3 Dec 2013 | 17 Jan 2017 | British | 59 years |
| Michael Connick | Director | 17 Jan 2017 | 13 Mar 2017 | British | 69 years |
| Michael George Pitt-payne | Director | 1 Jun 1994 | 30 Apr 2000 | British | 86 years |
| Michael George Pitt-payne | Secretary | 1 Jun 1994 | 13 May 1999 | British | - |
| Paul Ian Cartwright | Director | 18 Jul 1996 | 31 Dec 1998 | British | 65 years |
| Rachel Nancye Amey | Director | 10 Oct 2008 | 8 Mar 2013 | British | 48 years |
| Richard Friend Allan | Secretary | 1 Oct 2013 | 24 Nov 2015 | - | - |
| Richard Friend Allan | Director | 3 Dec 2013 | 24 Nov 2015 | British | 62 years |
| Richard Friend Allan | Director | 1 Feb 2017 | 29 Mar 2018 | British | 62 years |
| Richard John Skipp | Director | 8 Mar 2013 | 3 Dec 2013 | British | 58 years |
| Richard John Skipp | Director | 17 Apr 2013 | 3 Dec 2013 | British | 58 years |
| Richard Keith Bingham | Director | 31 Jul 2008 | 10 Oct 2008 | British | 64 years |
| Stephen Harry Smith | Director | 13 May 1999 | 30 Apr 2003 | British | 79 years |
| Stephen Harry Smith | Secretary | 13 May 1999 | 30 Apr 2003 | British | - |
| Victoria Anne George | Director | 10 Oct 2008 | 17 Jan 2017 | British | 49 years |