| Amanda Sisson | Director | 27 Sept 2013 | 6 Aug 2014 | British | 53 years |
| Andrew Mark Parsons | Director | 15 Sept 2010 | 30 Mar 2012 | British | 61 years |
| Arthur Leslie Owen | Director | 1 Jul 1998 | 22 Mar 2000 | United Kingdom | 77 years |
| Aviva Director Services Limited | Corporate Director | 31 Mar 2016 | 12 May 2016 | - | - |
| Brian David Emery | Director | 31 Mar 1992 | 30 Jun 1993 | British | 94 years |
| Christopher John Brocksom | Director | 31 Mar 1992 | 2 Feb 1997 | British | 90 years |
| Clair Louise Marshall | Director | 12 May 2016 | 29 Sept 2017 | British | 65 years |
| Colin Edward James Hainsby | Director | 31 Mar 1992 | 3 Jul 1998 | British | 83 years |
| David Rowley Rose | Director | 12 May 2016 | 31 Dec 2020 | British | 76 years |
| Friends Life Secretarial Services Limited | Corporate Secretary | 15 Sept 2010 | 17 Mar 2017 | United Kingdom | - |
| Gre Nominee Shareholdings Limited | Corporate Director | 22 Jun 2006 | 15 Sept 2010 | United Kingdom | - |
| Gregory Mark Wood | Director | 19 Feb 1997 | 20 Apr 1998 | British | 73 years |
| Ian David Lea Richardson | Director | 1 Jul 1998 | 15 Nov 2004 | British | 81 years |
| Ian Hird | Secretary | 31 Mar 1992 | 21 Jul 2000 | British | - |
| Ian Williams | Director | 27 Sept 2013 | 10 Feb 2016 | British | 52 years |
| Jeremy Peter Small | Director | 11 Nov 2004 | 15 Sept 2010 | British | 61 years |
| Jeremy Peter Small | Secretary | 21 Jul 2000 | 15 Sept 2010 | British | - |
| Jonathan Charles Paykel | Director | 23 Jan 2015 | 13 May 2016 | British | 53 years |
| Jonathan Stephen Moss | Director | 10 Sept 2012 | 30 Nov 2015 | British | 63 years |
| Julian Charles Baddeley | Director | 27 Jun 2017 | 29 Jul 2022 | British | 45 years |
| Karina Jane Bye | Director | 22 Jan 2018 | 30 Jun 2023 | British | 54 years |
| Keith Robert Puddephatt | Director | 31 Mar 1992 | 31 Oct 1995 | British | 85 years |
| Laura Eileen Mcgowan | Director | 29 Jul 2022 | 28 Nov 2024 | Irish | 52 years |
| Lindsay Clare J'afari-pak | Director | 15 Sept 2010 | 28 Sept 2012 | British | 56 years |
| Michael Eric Peter Moss | Director | 1 Jul 1993 | 3 Jul 1998 | British | 85 years |
| Peter Jonathan Shelley | Director | 24 Jun 2002 | 30 Dec 2004 | British | 74 years |
| Peter Nigel Stuckey Clark | Director | 1 Jul 1998 | 28 Jun 2002 | British | 79 years |
| Robert Edmund Lee | Director | 4 Oct 2005 | 7 Jun 2006 | British | 69 years |
| Robin Duncan Smith | Director | 28 Sept 2012 | 30 Sept 2015 | British | 63 years |