| Aart Dane | Director | 27 Jun 2014 | 16 Apr 2018 | Dutch | 54 years |
| Abdul Hamid | Director | 9 May 2017 | 29 Oct 2021 | British | 60 years |
| Alan Edward Birch | Director | 2 Jul 2003 | 27 Aug 2004 | British | 56 years |
| Alan Edward Birch | Director | 8 Nov 2004 | 7 Dec 2006 | British | 56 years |
| Alan Edward Birch | Director | 1 Dec 2007 | 11 Feb 2014 | British | 56 years |
| Andrew John Sutton | Director | 6 Mar 2002 | 11 Feb 2004 | British | 70 years |
| Andrew Matthews | Director | 25 Jun 2002 | 22 Dec 2005 | British | 64 years |
| Brian Mervyn Semple | Director | 22 Dec 2005 | 2 Jan 2008 | British | 80 years |
| Bruce Warren Dalgleish | Director | 22 Dec 2005 | 7 Dec 2006 | British | 59 years |
| Christopher John Blundell | Director | 2 Jan 2008 | 9 May 2017 | British | 60 years |
| Christopher John Blundell | Director | 6 Jan 2023 | 29 Aug 2025 | British | 60 years |
| Geoffrey Keith Howard Mason | Director | 6 Mar 2002 | 6 Jun 2002 | British | 72 years |
| Ian Richard Gethin | Director | 22 Dec 2005 | 2 Jan 2008 | British | 55 years |
| Patrick Hugh Gardiner | Director | 25 Jun 2002 | 7 Jun 2004 | British | 77 years |
| Paul George Milner | Director | 7 Jun 2004 | 15 Jun 2004 | British | 65 years |
| Paul Mcculloch | Director | 8 Nov 2004 | 18 Dec 2006 | British | 61 years |
| Robert Hugh Corrie Rees | Director | 22 Dec 2005 | 2 Jan 2008 | British | 65 years |
| Robert Nigel Johnson | Director | 11 Feb 2004 | 15 Jun 2004 | British | 68 years |
| Robert Sean Mcclatchey | Director | 25 Jun 2002 | 22 Dec 2005 | British | 61 years |
| Secretariat Services Limited | Corporate Secretary | 6 Mar 2002 | 1 Sept 2005 | United Kingdom | - |
| William Robert Doughty | Director | 26 Aug 2004 | 2 Jan 2008 | British | 58 years |