| Alan George Sheppard | Director | 20 Jul 2001 | 31 Oct 2008 | British | 72 years |
| Andrew Christopher Bolter | Director | 3 Sept 2012 | 4 Apr 2014 | British | 56 years |
| Charles Cedric Hollinsworth | Director | 2 May 1998 | 1 Sept 1998 | British | 78 years |
| Christopher Gordon Reynolds | Secretary | 12 Oct 2001 | 30 Apr 2009 | British | - |
| David Stuart Billson | Secretary | 16 Apr 1997 | 31 Aug 1998 | British | - |
| 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 |
| Jacqueline Fisher | Nominee Director | 1 May 1996 | 13 Sept 1996 | British | 74 years |
| James Richard Stirk | Director | 13 Sept 1996 | 20 Nov 1996 | British | 67 years |
| James Richard Stirk | Director | 30 Apr 2009 | 14 Dec 2012 | British | 67 years |
| James Richard Stirk | Secretary | 13 Sept 1996 | 20 Nov 1996 | British | - |
| James Richard Stirk | Secretary | 30 Apr 2009 | 30 Nov 2012 | British | - |
| John Albert Larkin | Secretary | 20 Nov 1996 | 16 Apr 1997 | British | - |
| John Christopher Barritt | Director | 20 Nov 1996 | 20 Jul 2001 | British | 79 years |
| John Joseph Thomas Hewitt Glaves | Director | 1 Jul 1997 | 2 May 1998 | British | 88 years |
| John Richard Bradshaw | Secretary | 30 Nov 2012 | 29 Jun 2013 | British | - |
| Lafarge Tarmac Directors (uk) Limited | Corporate Director | 28 Jun 2013 | 27 Aug 2015 | United Kingdom | - |
| Matthew William Edward Hyland | Nominee Director | 1 May 1996 | 13 Sept 1996 | British | 57 years |
| Matthew William Edward Hyland | Nominee Secretary | 1 May 1996 | 13 Sept 1996 | British | - |
| Michael John Saunders | Director | 1 Sept 1998 | 18 May 2000 | British | 70 years |
| Neil Graham Scott Roberts | Director | 13 Oct 2008 | 30 Apr 2009 | British | 67 years |
| Paul Antony Wakefield | Director | 13 Sept 1996 | 20 Nov 1996 | British | 59 years |
| Paul David Wynn | Director | 20 Nov 1996 | 21 May 1998 | British | 72 years |
| Peter John Gillatt | Director | 20 Nov 1996 | 13 Jun 1997 | British | 66 years |
| Robert David Lindsay Kelly | Director | 21 May 1998 | 10 Feb 1999 | Welsh | 67 years |
| Tarmac Nominees Limited | Corporate Director | 29 Apr 2009 | 29 Jun 2013 | United Kingdom | - |
| Timothy Charles Jackson | Secretary | 31 Aug 1998 | 12 Oct 2001 | British | - |
| William Robert Warnett | Director | 20 Nov 1996 | 5 Mar 1999 | British | 70 years |
