| Andrew Christopher Bolter | Director | 28 Mar 2013 | 4 Apr 2014 | British | 56 years |
| Clive Jonathan Mottram | Director | 15 Jun 2009 | 2 Jun 2010 | British | 67 years |
| Deborah Grimason | Director | 13 Apr 2007 | 19 Jun 2009 | British | 63 years |
| Deborah Grimason | Director | 1 Jan 2012 | 20 Nov 2013 | British | 63 years |
| Fiona Puleston Penhallurick | Director | 4 Apr 2014 | 15 Mar 2016 | British | 59 years |
| Lafarge Tarmac Directors (uk) Limited | Corporate Director | 1 Feb 2010 | 27 Aug 2015 | United Kingdom | - |
| Marie-cecile Collignon | Director | 1 Sept 2011 | 31 Dec 2011 | French | 50 years |
| Mark Leslie Crump | Director | 30 Jun 1998 | 31 Mar 1999 | British | 63 years |
| Olivier Luneau | Director | 31 Mar 1998 | 30 Jun 1998 | French | 78 years |
| Paul Anthony Chitty | Director | 31 Mar 1999 | 6 Apr 2003 | British | 73 years |
| Peter William Joseph Mills | Director | 30 Jun 1998 | 1 Jun 1999 | British | 73 years |
| Peter William Joseph Mills | Director | 6 Apr 2003 | 30 Jun 2010 | British | 73 years |
| Phillip Thomas Edward Lanyon | Director | 16 Aug 2010 | 28 Mar 2013 | British | 62 years |
| Raymond Alfred Elliott | Director | 31 Mar 1999 | 13 Apr 2007 | British | 79 years |
| Rebecca Joan Powell | Director | 5 Jan 2011 | 1 Sept 2011 | British | 54 years |
| Robert David Andrews | Director | 30 May 1992 | 30 Jun 1998 | British | 84 years |
| Sonia Fennell | Director | 7 Jun 2010 | 5 Jan 2011 | British | 67 years |
| Stefan Hutwohl | Director | 31 Mar 1999 | 16 Jan 2002 | German | 62 years |
| Stephen John East | Director | 18 Mar 1994 | 1 Nov 1996 | British | 68 years |
| Stephen Rothwell O'brien | Director | 30 May 1992 | 31 Mar 1998 | British | 69 years |