| Andrew Mark Beswick | Director | 22 Jul 2013 | 17 May 2016 | British | 57 years |
| Andrew Peter Hardy | Director | 24 Jul 1992 | 28 Nov 2002 | British | 77 years |
| Andrew Thomas Banks | Director | 22 Sept 1999 | 13 Jun 2002 | British | 69 years |
| Angela Charlotte Seymour-jackson | Director | 24 Aug 2010 | 31 Dec 2010 | British | 60 years |
| Angela Jane Macdonald | Director | 8 May 2006 | 18 Dec 2006 | British | 56 years |
| Aviva Company Secretarial Services Limited | Corporate Director | 28 Nov 2002 | 8 May 2006 | United Kingdom | - |
| Aviva Director Services Limited | Corporate Director | 28 Nov 2002 | 8 May 2006 | - | - |
| Barry Bryan Knights | Secretary | 24 Jul 1992 | 31 May 1993 | British | - |
| Bernard Andrew Curran | Director | 18 Sept 2012 | 7 Mar 2014 | British | 58 years |
| Brian Malcolm Hamilton Bussell | Director | 8 May 2006 | 18 Dec 2006 | British | 66 years |
| Cathryn Elizabeth Riley | Director | 15 Dec 2006 | 31 Dec 2008 | British | 64 years |
| Craig James Thornton | Director | 1 Aug 2012 | 8 Mar 2013 | British | 54 years |
| David Barclay Barral | Director | 10 Jun 2009 | 22 Jul 2013 | British | 64 years |
| David Ernest Parker | Secretary | 1 Jun 1993 | 28 Apr 1999 | British | - |
| Diane Margaret Thirkettle | Secretary | 29 Apr 1999 | 29 Sept 2000 | British | - |
| Douglas Allan Brown | Director | 24 Feb 2023 | 18 Aug 2024 | British | 55 years |
| Edward John Brister | Director | 24 Jul 1992 | 21 Aug 1992 | British | 92 years |
| Emma Elizabeth Douglas | Director | 27 Oct 2021 | 1 Nov 2024 | British | 61 years |
| Graham Stirling Boffey | Director | 5 Aug 2010 | 5 Dec 2012 | British | 63 years |
| Hugh William Hessing | Director | 21 Jun 2011 | 6 Aug 2012 | British | 61 years |
| Ian Butterworth | Director | 5 Aug 2010 | 31 Dec 2010 | British | 73 years |
| Joanne Marie Phillips | Director | 17 Nov 2023 | 15 Aug 2025 | British | 45 years |
| John Robert Lister | Director | 9 Jul 2009 | 23 Apr 2012 | British | 68 years |
| John Steele | Director | 8 May 2006 | 18 Dec 2006 | British | 70 years |
| John William Shingfield | Director | 24 Jul 1992 | 21 Aug 1992 | British | 94 years |
| Julie Dawn Green | Director | 14 Oct 2014 | 11 Jul 2018 | British | 57 years |
| Lindsey Claire Rix | Director | 11 Jun 2019 | 30 Mar 2020 | British | 46 years |
| Lindsey Claire Rix | Director | 31 Mar 2020 | 29 Apr 2020 | British | 46 years |
| Mark Steven Hodges | Director | 15 Dec 2006 | 30 Apr 2010 | British | 61 years |
| Matthew Ross Mcgill | Director | 9 Jan 2018 | 20 Sept 2021 | British | 51 years |
| Michael Terence Kirsch | Director | 8 May 2006 | 14 Sept 2006 | British | 65 years |
| Nicolaos Nicandrou | Director | 15 Dec 2006 | 27 Apr 2009 | British | 61 years |
| Patrick Colm Peter Tiernan | Director | 7 Mar 2018 | 28 Jul 2020 | Irish | 51 years |
| Philip Craig Willcock | Director | 10 Aug 2011 | 2 Dec 2013 | British | 55 years |
| Philip Gordon Scott | Director | 1 Aug 1993 | 28 Nov 2002 | British | 72 years |
| Richard Cecil Riseborough | Director | 21 Aug 1992 | 30 Jun 1999 | British | 82 years |
| Rob Ian Houghton | Director | 7 Feb 2011 | 18 Jun 2012 | English | 60 years |
| Robin Matthew Barker | Director | 25 Oct 2021 | 1 Aug 2022 | Italian | 54 years |
| Rodney Philip Prezeau | Director | 6 Aug 2015 | 30 Apr 2017 | British | 57 years |
| Roger Bellinger | Director | 21 Aug 1992 | 31 Mar 1994 | British | 87 years |
| Ronald Calver | Director | 24 Jul 1992 | 30 Jun 1993 | British | 81 years |
| Simon Roger Marsden | Director | 31 Mar 2020 | 31 Jan 2024 | British | 53 years |
| Stephen Andrew Joseph Mann | Director | 21 Jul 1999 | 28 Nov 2002 | British | 61 years |
| Stuart Edmund Robinson | Director | 8 Mar 2018 | 30 Nov 2021 | British | 54 years |
| Thomas Anthony Kelly | Director | 24 Jul 1992 | 21 Aug 1992 | British | 84 years |
| Timothy Richard Orton | Director | 1 Aug 2013 | 7 Jan 2019 | British | 55 years |
| Toby Emil Strauss | Director | 11 Feb 2009 | 23 May 2011 | British | 67 years |
| William Ernest Burnside | Director | 5 Apr 2016 | 15 Mar 2019 | British | 60 years |