| Andrea Finegan | Director | 18 Apr 2006 | 16 Feb 2007 | German | 57 years |
| Carillion Secretariat Limited | Corporate Secretary | 28 Apr 2005 | 31 Mar 2010 | United Kingdom | - |
| Dla Nominees Limited | Corporate Nominee Director | 14 Oct 2004 | 28 Apr 2005 | - | - |
| Dla Secretarial Services Limited | Corporate Nominee Director | 14 Oct 2004 | 28 Apr 2005 | - | - |
| Dla Secretarial Services Limited | Corporate Nominee Secretary | 14 Oct 2004 | 28 Apr 2005 | - | - |
| Duncan Elliot Dickson | Director | 28 Apr 2005 | 31 Jan 2008 | British | 72 years |
| Gaynor Birley Smith | Director | 15 Feb 2007 | 19 Apr 2016 | English | 60 years |
| Graham Farley | Director | 12 Jul 2006 | 29 May 2008 | British | 77 years |
| Helen Thain | Secretary | 29 May 2012 | 18 Jun 2013 | - | - |
| James William Ward | Director | 28 Apr 2005 | 9 Jun 2008 | British | 74 years |
| Jemma Cunliffe | Secretary | 31 Mar 2010 | 31 Mar 2010 | - | - |
| Jemma Cunliffe | Secretary | 31 Mar 2010 | 29 May 2012 | - | - |
| Neil Edmund King | Director | 28 Apr 2005 | 11 Jul 2005 | British | 63 years |
| Nigel Anthony John Brindley | Director | 28 Apr 2005 | 1 Jul 2006 | British | 70 years |
| Richard Keith Sheehan | Director | 29 May 2008 | 1 Nov 2010 | English | 51 years |
| Robert Shekleton | Director | 28 Apr 2005 | 18 Apr 2006 | British | 70 years |