| Andrea Jayne Latibeaudiere | Director | 2 Oct 2000 | 29 Nov 2002 | British | 64 years |
| Andrew Christopher Bolter | Director | 3 Sept 2012 | 4 Apr 2014 | British | 56 years |
| Ann Jones | Secretary | 12 Jun 1992 | 1 May 1992 | British | - |
| Clive Cadwgan James | Director | 31 Mar 2005 | 30 Apr 2009 | British | 78 years |
| David Anthony Grady | Director | 13 Jul 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 |
| Helen Douglas | Secretary | 29 Nov 2002 | 16 May 2005 | British | - |
| James Richard Stirk | Director | 11 Jun 2010 | 14 Dec 2012 | British | 67 years |
| Kenneth Stephen Clare | Director | 29 Nov 2002 | 13 Jul 2009 | British | 77 years |
| Lafarge Tarmac Directors (uk) Limited | Corporate Director | 28 Jun 2013 | 27 Aug 2015 | United Kingdom | - |
| Mark David Jones | Director | 12 Jun 1992 | 29 Nov 2002 | British | 68 years |
| Mark Russell Robinson | Director | 12 Jun 1992 | 29 Nov 2002 | British | 58 years |
| Mark Russell Robinson | Secretary | 1 May 1992 | 29 Nov 2002 | British | - |
| Nicholas Henry Aldous Wood | Director | 29 Nov 2002 | 31 Mar 2005 | British | 75 years |
| Paul Michael Dickinson | Director | 1 Feb 2001 | 29 Nov 2002 | British | 66 years |
| Stewart Anthony Baker | Director | 1 Nov 1998 | 29 Nov 2002 | British | 81 years |
| Tarmac Nominees Limited | Corporate Director | 13 Jul 2009 | 29 Jun 2013 | United Kingdom | - |
| Tarmac Nominees Two Limited | Corporate Director | 13 Jul 2009 | 29 Jun 2013 | United Kingdom | - |
| Tarmac Nominees Two Limited | Corporate Secretary | 16 May 2005 | 29 Jun 2013 | United Kingdom | - |
| Trevor Williams | Director | 27 Feb 2002 | 29 Nov 2002 | British | 76 years |