| Anthony William Short | Director | 30 Jan 1998 | 24 Aug 1998 | British | 82 years |
| Aviva Company Secretarial Services Limited | Corporate Secretary | 30 Jun 2005 | 31 May 2006 | United Kingdom | - |
| Carol Ann Parkes | Director | 22 Jul 2009 | 19 Dec 2014 | British | 60 years |
| Carol Ann Parkes | Director | 18 Sept 2015 | 22 Nov 2019 | British | 60 years |
| Colin Stuart Home | Director | 18 Apr 1992 | 30 Jan 1998 | British | 89 years |
| Craig Cameron Mcnaughton | Director | 17 Jul 2018 | 22 Nov 2019 | British | 62 years |
| David Dermot Hennessey | Secretary | 11 Jan 2017 | 8 Jan 2024 | - | - |
| David Mark Usher | Director | 24 Aug 1998 | 20 Nov 2001 | British | 77 years |
| Elizabeth Irvine Reid Jonsson | Director | 20 Nov 2001 | 1 Mar 2002 | British | 59 years |
| Elizabeth Irvine Reid Jonsson | Secretary | 20 Nov 2001 | 1 Mar 2002 | British | - |
| Graeme John Potts | Director | 4 Jun 2001 | 20 Nov 2001 | British | 69 years |
| Ian Barron | Director | 5 Oct 1993 | 24 Aug 1998 | British | 71 years |
| Ian Barron | Secretary | 5 Oct 1993 | 24 Aug 1998 | British | - |
| Jonathan Kim Walden | Director | 6 Sept 2005 | 31 Mar 2009 | British | 73 years |
| Lindsay John Town | Director | 31 May 2006 | 7 Apr 2009 | British | 72 years |
| Mark Francis Chessman | Director | 3 Oct 2011 | 12 Sept 2014 | British | 62 years |
| Nigel Cleator Stead | Director | 5 May 2009 | 30 Jun 2011 | British | 77 years |
| Pamela Mary Coles | Director | 20 Nov 2001 | 30 Jun 2005 | British | 65 years |
| Pamela Mary Coles | Secretary | 4 Jun 2001 | 20 Nov 2001 | British | - |
| Pamela Mary Coles | Secretary | 1 Mar 2002 | 30 Jun 2005 | British | - |
| Patrick Joseph Robert Snowball | Director | 30 Jun 2005 | 6 Sept 2005 | British | 76 years |
| Paul Brotherton | Director | 19 Dec 2014 | 12 Aug 2015 | British | 61 years |
| Paul Gittins | Secretary | 19 Jan 2024 | 31 Jul 2024 | - | - |
| Paul Gittins | Secretary | 31 May 2006 | 11 Jan 2017 | British | - |
| Philip Charles Easter | Director | 30 Jun 2005 | 6 Sept 2005 | British | 73 years |
| Philip Robert Grant | Director | 13 Aug 2015 | 31 May 2017 | British | 60 years |
| Phillip Anthony Dawson | Director | 24 Aug 1998 | 31 Dec 2000 | British | 78 years |
| Richard Andrew Jones | Director | 5 Aug 2019 | 28 Oct 2022 | British | 54 years |
| Rick Francis | Director | 6 Sept 2005 | 31 Jan 2008 | British | 65 years |
| Rick Francis | Director | 5 May 2009 | 14 Jun 2013 | British | 65 years |
| Sarah Anne Margaret Smale | Director | 1 Mar 2002 | 30 Jun 2005 | British | 61 years |
| Scott William Cargill | Director | 19 Dec 2014 | 18 Sept 2015 | British | 45 years |
| Simon Christopher Machell | Director | 30 Jun 2005 | 31 May 2006 | British | 63 years |
| Simon Richard Russell | Director | 31 Dec 2000 | 20 Nov 2001 | British | 65 years |
| Simon Richard Russell | Secretary | 24 Aug 1998 | 4 Jun 2001 | British | - |
| Stuart James Ballingall | Director | 15 Jan 2007 | 10 Jun 2009 | British | 62 years |
| Terence John Martin | Director | 18 Apr 1992 | 5 Oct 1993 | British | 77 years |
| Terence John Martin | Secretary | 18 Apr 1992 | 5 Oct 1993 | British | - |
| Tim Revell Porter | Director | 31 May 2017 | 19 Oct 2018 | British | 61 years |
| Timothy John Beswick | Director | 4 Jun 2001 | 20 Nov 2001 | British | 69 years |