| Alison Lesley Sykes | Director | 1 Sept 1998 | 30 Sept 2004 | British | 74 years |
| Battye Wimpenny & Dawson Limited | Corporate Secretary | 24 May 1991 | 21 Feb 2003 | - | - |
| Capita Company Secretarial Services Limited | Corporate Secretary | 31 Jul 2005 | 1 Dec 2008 | - | - |
| Capita Corporate Director Limited | Corporate Director | 31 Mar 2008 | 3 Nov 2017 | United Kingdom | - |
| Capita Group Secretary Limited | Corporate Secretary | 1 Dec 2008 | 3 Nov 2017 | United Kingdom | - |
| Charles Cryer | Director | 21 Feb 2003 | 8 Sept 2006 | British | 54 years |
| Christopher Addenbrooke | Director | 24 May 1991 | 31 Mar 2008 | British | 64 years |
| Christopher John Bates Broadbent | Director | 24 May 1991 | 23 Sept 1996 | British | 71 years |
| Francesca Anne Todd | Director | 11 Nov 2013 | 3 Nov 2017 | British | 55 years |
| Gordon Mark Hurst | Director | 21 Feb 2003 | 31 Mar 2008 | British | 64 years |
| Graham Philip Renn | Director | 16 Jan 2001 | 31 Mar 2008 | British | 69 years |
| Howard Alan Montagu | Director | 2 Oct 2006 | 31 Mar 2008 | British | 56 years |
| John Geoffrey Thomas Dyson | Director | 1 Jan 1994 | 29 Mar 2002 | British | 85 years |
| Jonathan Peter Wragg | Director | 6 Dec 2000 | 21 Feb 2003 | British | 59 years |
| Michael Hamer Burns | Director | 28 Nov 1998 | 21 Feb 2003 | British | 79 years |
| Michael John Dickinson | Director | 30 Aug 1996 | 30 Nov 2000 | British | 77 years |
| Paul Richard Martin Pindar | Director | 21 Feb 2003 | 31 Mar 2008 | British | 67 years |
| Richard John Shearer | Director | 31 Mar 2008 | 11 Nov 2013 | British | 62 years |
| Robert Charles Coyle | Director | 21 Feb 2003 | 31 Mar 2008 | British | 61 years |
| Tina Maria Fontana | Secretary | 21 Feb 2003 | 31 Jul 2005 | British | - |
| Valerie Irene Kelly | Director | 24 May 1991 | 13 Feb 2004 | British | 82 years |