| Alistair John Brett | Director | 22 Mar 1999 | 24 May 2000 | British | 76 years |
| Alistair John Brett | Secretary | 22 Mar 1999 | 24 May 2000 | British | - |
| Carla Stone | Director | 1 Oct 2002 | 23 Mar 2012 | British | 62 years |
| Carla Stone | Secretary | 31 Oct 2001 | 2 Apr 2012 | British | - |
| Carol Ann Fairweather | Director | 8 Oct 2004 | 28 Feb 2006 | British | 65 years |
| Christopher Charles Stoddart Longcroft | Director | 27 Mar 2013 | 25 Jul 2022 | British | 55 years |
| Ian Kenneth Barnes | Director | 23 Mar 2012 | 27 Mar 2013 | British | 55 years |
| Michael Charles Gill | Director | 13 Aug 2007 | 22 Jul 2024 | British | 63 years |
| Michael Maxwell Walter | Director | 22 Mar 1999 | 24 May 2000 | British | 81 years |
| Peter Walter Stehrenberger | Director | 24 May 2000 | 31 Oct 2001 | Swiss | 88 years |
| Peter Walter Stehrenberger | Secretary | 24 May 2000 | 31 Oct 2001 | Swiss | - |
| Richard Martin Linford | Director | 24 May 2000 | 30 Jan 2006 | British | 74 years |
| Severnside Nominees Limited | Corporate Nominee Director | 22 Mar 1999 | 22 Mar 1999 | - | - |
| Severnside Secretarial Limited | Corporate Nominee Secretary | 22 Mar 1999 | 22 Mar 1999 | - | - |
| Stephen Frank Hutson | Director | 31 Oct 2001 | 13 Aug 2007 | British | 71 years |
| Stephen Wayne Daintith | Director | 19 Sept 2005 | 17 Jul 2008 | British | 62 years |