| Adam Charles Wearing | Secretary | 31 Dec 2003 | 21 Mar 2005 | British | - |
| Andrew Robert Richards | Director | 17 Dec 2010 | 28 Feb 2011 | British | 67 years |
| Caroline Jane Bradley | Director | 28 Jan 2013 | 31 Aug 2020 | British | 63 years |
| David Shaw | Director | 17 Dec 2010 | 24 Jun 2011 | British | 74 years |
| Geoffrey Stephen Clarkson | Director | 17 Dec 2010 | 9 May 2013 | British | 77 years |
| Geoffrey Stephen Clarkson | Secretary | 21 Mar 2005 | 31 Jan 2007 | British | - |
| Geoffrey Stephen Clarkson | Secretary | 1 Aug 2007 | 30 Apr 2013 | British | - |
| Gillian Mary Davidson | Director | 30 Apr 2013 | 13 Dec 2016 | British | 61 years |
| Gillian Mary Davidson | Secretary | 30 Apr 2013 | 4 Dec 2013 | - | - |
| Graeham Stuart Sampson | Director | 20 Apr 2011 | 24 Sept 2012 | British | 51 years |
| Keely Jill Craig | Director | 29 Aug 2017 | 30 Jul 2021 | British | 52 years |
| Keith Arthur Carby | Director | 6 Apr 2005 | 2 Aug 2007 | British | 80 years |
| Leon Laurence Davidson | Director | 30 Apr 1999 | 29 Dec 2000 | Irish | 70 years |
| Neil Andrew Preston | Director | 30 Apr 1999 | 31 Dec 2003 | British | 68 years |
| Neil Andrew Preston | Secretary | 30 Apr 1999 | 31 Dec 2003 | British | - |
| Nicholas Edward Kelly | Director | 1 Jun 2004 | 21 Jun 2005 | British | 56 years |
| Paul Anthony Dunne | Secretary | 1 Feb 2007 | 2 Aug 2007 | British | - |
| Peter William Lane | Director | 21 Jun 2005 | 31 Jan 2007 | British | 58 years |
| Peter William Lane | Director | 2 Aug 2007 | 11 Dec 2010 | British | 58 years |
| Roger Nicholas Brosch | Director | 7 Nov 2005 | 2 Aug 2007 | British | 64 years |
| Rowan Formations Limited | Corporate Nominee Director | 27 Jan 1999 | 14 Feb 2000 | United Kingdom | - |
| Rowansec Limited | Corporate Nominee Secretary | 27 Jan 1999 | 14 Feb 2000 | United Kingdom | - |
| Simon Harold Hudson | Director | 29 Dec 2000 | 31 Jan 2007 | British | 73 years |
| Simon Harold Hudson | Director | 2 Aug 2007 | 12 Aug 2011 | British | 73 years |
| Stephen Mark Jones | Director | 1 Jun 2004 | 21 Jun 2005 | British | 68 years |
