| Andrew David Porter | Director | 20 Mar 1998 | 5 Jan 1999 | British | 63 years |
| Andrew George Parker | Director | 17 Mar 2008 | 13 Oct 2011 | British | 57 years |
| Andrew James Carr | Director | 16 Jan 2008 | 5 Feb 2010 | British | 53 years |
| Arvind Ramsewak Chaturvedi | Director | 12 Mar 2012 | 15 Nov 2013 | British | 58 years |
| Benjamin John Martin | Director | 10 Sept 1997 | 3 Sept 2007 | British | 82 years |
| Capita Company Secretarial Services Limited | Corporate Secretary | 31 May 2008 | 1 Dec 2008 | - | - |
| Christopher John Noblet | Director | 16 Jan 2008 | 18 Jul 2009 | British | 62 years |
| Daniel Christophe Wilton Ramsden | Director | 17 Oct 2014 | 19 Jun 2019 | British | 47 years |
| Deborah Gilbert | Secretary | 4 Jan 1992 | 28 Apr 1993 | British | - |
| Deborah Guest | Director | 4 Jan 1992 | 13 May 1993 | British | 68 years |
| Dibakar Chatterjee | Director | 16 Jun 2011 | 17 Oct 2014 | Indian | 52 years |
| Francesca Anne Todd | Director | 28 May 2021 | 10 Dec 2021 | British | 55 years |
| Gary James Raymond | Director | 1 May 1996 | 31 May 1999 | British | 65 years |
| Gary Shilston | Director | 16 Jun 2022 | 31 Jul 2025 | British | 59 years |
| Gary Terence Barrett | Director | 9 Aug 2004 | 1 Sept 2005 | British | 67 years |
| Gemma Rebecca Bate-williams | Director | 13 Jan 2022 | 14 Nov 2022 | British | 46 years |
| Giles Edwin Vardey | Director | 3 Sept 2007 | 17 Mar 2008 | British | 70 years |
| Gordon Mark Hurst | Director | 17 Mar 2008 | 22 Jan 2009 | British | 64 years |
| Graham Mark Gilbert | Director | 4 Jan 1992 | 31 Oct 2008 | British | 63 years |
| Graham Mark Gilbert | Secretary | 28 Apr 1993 | 15 Aug 1997 | British | - |
| Ian Edward Jarvis | Director | 21 Dec 2016 | 9 Nov 2017 | British | 55 years |
| Julian Anthony Buck | Director | 22 Oct 1999 | 31 May 2001 | British | 61 years |
| Julie Margaret Baddeley | Director | 6 Jan 2005 | 17 Mar 2008 | British | 75 years |
| Keith Edward Wilson | Director | 25 Jun 2007 | 16 Jan 2008 | British | 74 years |
| Lee Hewett | Director | 31 Oct 2008 | 12 May 2011 | British | 61 years |
| Mark Richard John Wyllie | Director | 12 May 2011 | 12 Dec 2012 | British | 60 years |
| Martyn John Donnelly | Director | 28 Feb 2001 | 25 Mar 2011 | British | 70 years |
| Michael William Bates Kent | Director | 14 Apr 1998 | 31 May 2008 | British | 65 years |
| Michael William Bates Kent | Secretary | 14 Apr 1998 | 31 May 2008 | British | - |
| Nicholas Siegfried Dale | Director | 9 Nov 2017 | 28 May 2021 | British | 56 years |
| Peter Edward Hands | Director | 5 Jun 2013 | 30 Apr 2016 | British | 61 years |
| Peter George Jaggard | Director | 1 Jul 2000 | 29 May 2002 | British | 76 years |
| Richard David Mogg | Director | 13 Oct 2011 | 29 Jun 2012 | British | 50 years |
| Richard John Shearer | Director | 17 Mar 2008 | 22 Jan 2009 | British | 62 years |
| Richard John Shearer | Director | 4 Jun 2013 | 31 Dec 2016 | British | 62 years |
| Robert Brooks | Director | 4 Jan 1992 | 30 Apr 1997 | British | 81 years |
| Simon Christopher Pilling | Director | 17 Mar 2008 | 22 Jan 2009 | British | 64 years |
| Simon Mark Lawless | Director | 1 May 1994 | 23 May 2007 | British | 65 years |
| Simon Oldfield | Director | 1 May 1997 | 10 Sept 1999 | British | 69 years |
| Simon Oldfield | Secretary | 15 Aug 1997 | 14 Apr 1998 | British | - |
| William James Spencer Floydd | Director | 11 Oct 2012 | 17 Jun 2013 | British | 57 years |