| Andrew Christopher Bolter | Director | 3 Sept 2012 | 4 Apr 2014 | British | 56 years |
| Christopher Gordon Reynolds | Director | 17 Jan 2008 | 18 May 2009 | British | 73 years |
| David Anthony Grady | Director | 18 May 2009 | 11 Jun 2010 | British | 57 years |
| Deborah Grimason | Director | 28 Jun 2013 | 20 Nov 2013 | British | 63 years |
| Fiona Puleston Penhallurick | Director | 4 Apr 2014 | 15 Mar 2016 | British | 59 years |
| Geoffrey James Crocker | Director | 5 Nov 1992 | 23 Apr 2002 | British | 75 years |
| James Richard Stirk | Director | 11 Jun 2010 | 14 Dec 2012 | British | 67 years |
| John Germain Bailey | Director | 23 Apr 2002 | 16 Feb 2004 | British | 74 years |
| Kevin Stuart Williams | Director | 5 Nov 1992 | 23 Apr 2002 | British | 72 years |
| Lafarge Tarmac Directors (uk) Limited | Corporate Director | 28 Jun 2013 | 27 Aug 2015 | United Kingdom | - |
| Michael John Saunders | Director | 23 Apr 2002 | 16 Feb 2004 | British | 70 years |
| Paul Gwilt | Director | 23 Apr 2002 | 31 Dec 2003 | British | 79 years |
| Tarmac Nominees Limited | Corporate Director | 16 Feb 2004 | 29 Jun 2013 | United Kingdom | - |
| Tarmac Nominees Two Limited | Corporate Director | 16 Feb 2004 | 29 Jun 2013 | United Kingdom | - |
| Tarmac Nominees Two Limited | Corporate Secretary | 17 Feb 2004 | 29 Jun 2013 | United Kingdom | - |
| Timothy Charles Jackson | Director | 23 Apr 2002 | 17 Feb 2004 | British | 74 years |
| Timothy Charles Jackson | Secretary | 23 Apr 2002 | 17 Feb 2004 | British | - |
| William David Crocker | Director | 5 Nov 1992 | 23 Apr 2002 | British | 80 years |
| William David Crocker | Secretary | 5 Nov 1992 | 28 Oct 1996 | British | - |
| William Richard Crocker | Director | 21 Apr 2002 | 23 Apr 2002 | British | 57 years |
| William Richard Crocker | Secretary | 28 Oct 1996 | 23 Apr 2002 | British | - |