| 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 |
| Andrew Kenny | Director | 1 May 1998 | 20 Apr 1999 | British | 74 years |
| Christopher Gordon Reynolds | Secretary | 2 Apr 2001 | 30 Apr 2009 | British | - |
| David Baxter | Director | 12 Sept 1999 | 14 Aug 2000 | British | 74 years |
| David Hardman | Director | 28 Oct 1997 | 1 May 1998 | British | 72 years |
| David Tetley | Director | 1 May 1998 | 21 Apr 1999 | British | 79 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 | 30 Apr 2009 | 14 Dec 2012 | British | 67 years |
| James Richard Stirk | Secretary | 30 Apr 2009 | 30 Nov 2012 | British | - |
| Jl Nominees One Limited | Corporate Nominee Director | 15 Oct 1997 | 28 Oct 1997 | - | - |
| Jl Nominees Two Limited | Corporate Nominee Secretary | 15 Oct 1997 | 28 Oct 1997 | - | - |
| John Christopher Barritt | Director | 14 Aug 2000 | 20 Jul 2001 | British | 79 years |
| John Paul Burks | Director | 19 May 2003 | 18 Feb 2009 | British | 62 years |
| John Richard Bradshaw | Secretary | 30 Nov 2012 | 29 Jun 2013 | British | - |
| John Roger Waterhouse | Director | 29 Mar 1999 | 1 May 2003 | British | 81 years |
| Lafarge Tarmac Directors (uk) Limited | Corporate Director | 28 Jun 2013 | 27 Aug 2015 | United Kingdom | - |
| Lorraine Sproule | Secretary | 28 Oct 1997 | 1 May 1998 | British | - |
| Martin John Peacock | Director | 1 May 1998 | 12 Sept 1999 | British | 79 years |
| Michael John Choules | Director | 27 Aug 2015 | 9 Apr 2021 | British | 66 years |
| Neil Graham Scott Roberts | Director | 13 Oct 2008 | 30 Apr 2009 | British | 67 years |
| Richard John Wood | Director | 9 Apr 2021 | 30 Sept 2022 | British | 54 years |
| Richard Stuart Lochman | Director | 29 Mar 1999 | 28 Nov 2003 | British | 77 years |
| Robert Ian Walter Boyd | Director | 1 May 1998 | 14 Aug 2000 | British | 81 years |
| Robert Ian Walter Boyd | Secretary | 1 May 1998 | 2 Apr 2001 | British | - |
| Steve Anson | Director | 14 Aug 2000 | 19 May 2003 | British | 61 years |
| Tarmac Nominess Limited | Corporate Director | 18 Feb 2009 | 29 Jun 2013 | United Kingdom | - |
