| Andrew Christopher Bolter | Director | 3 Sept 2012 | 4 Apr 2014 | British | 56 years |
| Anthony Graham Jones | Secretary | 1 Jan 1993 | 8 Oct 1993 | British | - |
| 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 |
| James Richard Stirk | Director | 11 Jun 2010 | 14 Dec 2012 | British | 67 years |
| James Richard Stirk | Secretary | 1 Mar 1996 | 3 Feb 2004 | British | - |
| James Ross Ancell | Director | 1 Jan 1993 | 1 Mar 1996 | British New Zealand | 73 years |
| John Ferguson Bowater | Director | 1 Mar 1996 | 3 Feb 2004 | British | 77 years |
| Lafarge Tarmac Directors (uk) Limited | Corporate Director | 28 Jun 2013 | 27 Aug 2015 | United Kingdom | - |
| Michael David Rushby | Director | 1 Mar 1996 | 30 Apr 1998 | British | 83 years |
| Nicholas Richard Connor | Director | 1 Jan 1993 | 5 Mar 1998 | British | 77 years |
| Niven Coats Greenhalf | Director | 30 Apr 1993 | 31 Jul 1996 | British | 75 years |
| Richard Anthony Glyn-jones | Director | 1 Jan 1993 | 30 Apr 1993 | British | 86 years |
| Roy James Harrison | Director | 1 Mar 1996 | 13 Mar 2000 | British | 79 years |
| Stefan Edward Bort | Secretary | 8 Oct 1993 | 8 Jan 1994 | British | - |
| Stefan Edward Bort | Secretary | 1 Jul 1994 | 1 Mar 1996 | British | - |
| Steven Leven | Secretary | 8 Jan 1994 | 21 Feb 1996 | British | - |
| Stuart Matthews | Director | 1 Mar 1996 | 13 Aug 1999 | British | 77 years |
| Tarmac Nominees Limited | Corporate Director | 2 Feb 2004 | 29 Jun 2013 | United Kingdom | - |
| Tarmac Nominees Two Limited | Corporate Director | 2 Feb 2004 | 29 Jun 2013 | United Kingdom | - |
| Tarmac Nominees Two Limited | Corporate Secretary | 3 Feb 2004 | 29 Jun 2013 | United Kingdom | - |
