| Adam Christopher Walker | Director | 17 Jun 2005 | 26 Mar 2008 | British | 59 years |
| Adam John Leadbetter | Director | 15 Dec 2010 | 23 Mar 2012 | British | 56 years |
| Andrew Greville Worboys | Director | 19 Feb 2015 | 11 Aug 2022 | British | 62 years |
| Anthony Roy Wilson | Director | 25 Jan 2011 | 25 Oct 2021 | British | 70 years |
| Barbara Lees | Secretary | 25 Sept 2008 | 9 Jun 2009 | Other | - |
| Benjamin Mcclennan Avery | Director | 22 Aug 2022 | 6 Oct 2023 | British | 37 years |
| Brian Malcolm Jackson | Director | 17 Jun 2005 | 22 May 2006 | British | 76 years |
| Brodies Secretarial Services Limited | Corporate Secretary | 2 Mar 2016 | 24 Mar 2023 | United Kingdom | - |
| Christine Ann Telling | Director | 24 Jul 1997 | 17 Jun 2005 | British | 75 years |
| Christine Ann Telling | Secretary | 16 Jul 1993 | 28 Jun 2004 | British | - |
| David Peter Woodward | Director | 18 Apr 2008 | 9 Jun 2009 | British | 64 years |
| David Robert Martin | Director | 13 Jun 1992 | 16 Jul 1993 | British | 75 years |
| Dawson Thomas Williams | Director | 13 Jun 1992 | 16 Jul 1993 | British | 88 years |
| Denis Wormwell | Director | 1 Feb 2006 | 19 Apr 2007 | British | 65 years |
| Gordon George Watt | Director | 13 Jun 1992 | 16 Jul 1993 | British | 73 years |
| Halco Secretaries Limited | Corporate Secretary | 9 Jun 2009 | 2 Mar 2016 | United Kingdom | - |
| Hugh Christopher Thorpe Staunton | Secretary | 15 Jul 1997 | 31 Dec 2001 | British | - |
| Jenny Casson | Secretary | 17 Jun 2005 | 25 Sept 2008 | British | - |
| John Henry | Director | 17 Jun 2005 | 30 Sept 2008 | British | 76 years |
| John Paul Mcgowan | Director | 15 Jul 2005 | 25 Jan 2011 | British | 64 years |
| Jonathan Woodward Eardley | Director | 25 Oct 2021 | 27 Sept 2024 | British | 47 years |
| Julian Edwards | Director | 23 May 2012 | 11 Aug 2020 | British | 57 years |
| Martin David Hancock | Director | 17 Jun 2005 | 18 Apr 2008 | British | 69 years |
| Neil James Barker | Director | 17 Jun 2005 | 9 Jun 2009 | British | 62 years |
| Peter Harvey | Director | 13 Jun 1992 | 4 Dec 1992 | British | 73 years |
| Peter Harvey | Secretary | 13 Jun 1992 | 21 Oct 1992 | British | - |
| Peter Raymond Mcenhill | Director | 13 Jun 1992 | 23 Nov 1992 | British | 86 years |
| Peter Timothy Coates | Director | 17 Jun 2005 | 9 Jun 2009 | British | 63 years |
| Raymond O'toole | Director | 17 Jun 2005 | 18 Apr 2008 | British | 71 years |
| Richard Anthony Bowler | Secretary | 21 Oct 1992 | 16 Jul 1993 | British | - |
| Richard Stephen Telling | Director | 22 Dec 2003 | 17 Jun 2005 | British | 49 years |
| Robert Ian Hodgetts | Director | 13 Aug 2003 | 17 Jun 2005 | English | 73 years |
| Robert Ian Hodgetts | Secretary | 28 Jun 2004 | 17 Jun 2005 | English | - |
| Stephen Richard Telling | Director | 13 Jun 1992 | 17 Jun 2005 | British | 78 years |
| Steven Ross Hanley | Director | 18 Apr 2008 | 20 Oct 2010 | British | 70 years |