| Alan Edward Birch | Director | 27 May 2004 | 27 Aug 2004 | British | 56 years |
| Andrew Matthews | Director | 27 May 2004 | 19 Dec 2011 | British | 64 years |
| Anita Catherine Gregson | Director | 1 Dec 2010 | 19 Dec 2011 | British | 62 years |
| David Geoffrey Lewis | Director | 19 Dec 2011 | 1 Feb 2019 | British | 57 years |
| David William Bowler | Secretary | 18 Apr 2005 | 17 Jul 2006 | British | - |
| David Wyn Davies | Director | 4 Feb 2021 | 1 Jul 2023 | British | 58 years |
| Faraidon Saheb-zadha | Director | 23 Nov 2011 | 19 Dec 2011 | British | 48 years |
| Geoffrey Keith Howard Mason | Director | 17 Sept 2003 | 27 May 2004 | British | 72 years |
| Geoffrey Keith Howard Mason | Director | 4 Feb 2005 | 5 May 2005 | British | 72 years |
| Hannah Holman | Director | 1 Feb 2019 | 4 Feb 2021 | British | 46 years |
| Jasvinder Bal | Director | 30 Aug 2006 | 10 Dec 2006 | British | 47 years |
| Margaret Louise Mellor | Director | 17 Sept 2003 | 27 May 2004 | British | 66 years |
| Nigel Anthony John Brindley | Director | 30 Jan 2007 | 15 Mar 2011 | British | 70 years |
| Oliver James Wake Jennings | Director | 27 May 2004 | 2 Jul 2007 | British | 63 years |
| Ray Gordon | Director | 21 Dec 2004 | 29 Apr 2005 | British | 66 years |
| Robert Anthony Wallace | Director | 27 Aug 2004 | 13 Dec 2004 | British | 76 years |
| Robert Nigel Johnson | Director | 27 May 2004 | 15 Jun 2004 | British | 68 years |
| Secretariat Services Limited | Corporate Secretary | 17 Sept 2003 | 15 Apr 2005 | United Kingdom | - |