| Andrew George Parker | Director | 22 Jan 2007 | 30 Nov 2009 | British | 57 years |
| Andrew John Bowman | Director | 1 Jan 2017 | 21 Jun 2022 | British | 54 years |
| Capita Company Secretarial Services Limited | Corporate Secretary | 31 Jul 2005 | 1 Dec 2008 | - | - |
| Douglas Lindsay Hay Laver | Director | 25 Jun 2012 | 11 Dec 2013 | British | 61 years |
| Francesca Anne Todd | Director | 16 Apr 2020 | 10 Dec 2021 | British | 55 years |
| Gordon Mark Hurst | Director | 29 Jun 1998 | 31 Mar 2008 | British | 64 years |
| Gordon Mark Hurst | Secretary | 3 Feb 1993 | 2 Jan 2002 | British | - |
| John William Peel | Director | 12 Mar 2003 | 31 Mar 2007 | British | 79 years |
| Martin Mccloskey | Director | 22 Jan 2007 | 30 Jun 2017 | British | 74 years |
| Michael David Barnard | Director | 11 Dec 2013 | 9 May 2019 | British | 53 years |
| Nicolas Norman Bedford | Director | 30 Nov 2009 | 4 May 2012 | British | 67 years |
| Nicolas Norman Bedford | Director | 1 Jan 2017 | 1 Feb 2018 | British | 67 years |
| Paul Richard Martin Pindar | Director | 3 Feb 1993 | 5 Sept 2008 | British | 67 years |
| Richard John Shearer | Director | 31 Mar 2007 | 13 Oct 2011 | British | 62 years |
| Simon Christopher Pilling | Director | 22 Jan 2007 | 10 Jan 2011 | British | 64 years |
| Simon John Davies | Director | 11 Dec 2013 | 28 Jan 2015 | British | 58 years |
| Thomas Christopher Richards | Director | 28 Jan 2015 | 9 Jan 2017 | British | 49 years |
| Tina Maria Fontana | Secretary | 2 Jan 2002 | 31 Jul 2005 | British | - |
| Victor Gysin | Director | 25 Jun 2012 | 29 Jan 2014 | British | 61 years |
| Victor Gysin | Director | 29 Aug 2015 | 18 Dec 2017 | British | 61 years |