| Alan John Hayter | Secretary | 15 Aug 2011 | 16 Apr 2013 | British | - |
| Alasdair Llewellyn Stables | Director | 1 Aug 2010 | 12 Dec 2012 | British | 54 years |
| Andrew Edward Jones | Director | 13 Aug 2004 | 9 Nov 2007 | British | 60 years |
| Anthony Stephen Leech Jones | Director | 22 Feb 2008 | 26 May 2010 | British | 65 years |
| Christopher David Plant | Director | 9 Nov 2007 | 16 Jan 2008 | United Kingdom | 68 years |
| Christopher David Plant | Director | 16 Jan 2008 | 15 Sept 2010 | United Kingdom | 68 years |
| Christopher John Phillips | Director | 30 Jun 2005 | 15 Feb 2007 | British | 65 years |
| David Peter Smith | Director | 10 Jul 2002 | 30 Jun 2005 | British | 73 years |
| Deborah Grimason | Director | 16 Apr 2013 | 20 Nov 2013 | British | 63 years |
| Deborah Grimason | Secretary | 13 Apr 2007 | 1 Apr 2009 | British | - |
| Dyfrig Morgan James | Director | 10 Jul 2002 | 16 Jan 2008 | British | 72 years |
| Fiona Puleston Penhallurick | Director | 27 Aug 2015 | 15 Mar 2016 | British | 59 years |
| Gavin Hallatt Silcock | Secretary | 1 Apr 2009 | 15 Sept 2010 | British | - |
| Gregory Arthur Landon Price | Director | 20 Nov 2002 | 9 Nov 2007 | British | 62 years |
| Ingleby Holdings Limited | Corporate Director | 18 Jun 2002 | 10 Jul 2002 | - | - |
| Ingleby Nominees Limited | Corporate Secretary | 18 Jun 2002 | 10 Jul 2002 | - | - |
| James Keith Retallack | Director | 15 Feb 2007 | 11 Jan 2008 | British | 69 years |
| John Ferguson Bowater | Director | 15 Feb 2007 | 11 Jan 2008 | British | 77 years |
| John Foster Yeoman | Director | 10 Jul 2002 | 29 Nov 2005 | British | 65 years |
| Lafarge Tarmac Directors (uk) Limited | Corporate Director | 16 Apr 2013 | 27 Aug 2015 | United Kingdom | - |
| Malcolm Whittle | Director | 11 Nov 2002 | 1 Nov 2008 | British | 79 years |
| Malcolm Whittle | Director | 1 Nov 2008 | 17 Apr 2013 | British | 79 years |
| Mark Andrew Swan | Director | 26 Feb 2008 | 31 Mar 2011 | British | 59 years |
| Mark John Slack | Director | 1 Nov 2008 | 16 Apr 2013 | British | 56 years |
| Mark Thomas Wood | Director | 15 Aug 2011 | 17 Apr 2013 | British | 53 years |
| Mark Wilson Joel | Director | 10 Jul 2002 | 15 Aug 2011 | British | 63 years |
| Martin James Hobbs | Director | 12 Dec 2012 | 17 Apr 2013 | British | 74 years |
| Martin Kenneth Riley | Director | 16 Apr 2013 | 31 Aug 2016 | British | 59 years |
| Michael Graham Lewis | Secretary | 15 Sept 2010 | 15 Aug 2011 | British | - |
| Michael John Choules | Director | 27 Aug 2015 | 9 Apr 2021 | British | 66 years |
| Michael Patrick Campbell | Director | 7 Feb 2012 | 17 Apr 2013 | Irish | 57 years |
| Paul Francis William Cottrell | Director | 16 Apr 2013 | 31 Aug 2016 | British | 60 years |
| Paul Gwilt | Director | 10 Jul 2002 | 31 Dec 2003 | British | 79 years |
| Raymond Alfred Elliott | Secretary | 10 Jul 2002 | 13 Apr 2007 | British | - |
| Richard John Wood | Director | 9 Apr 2021 | 30 Sept 2022 | British | 54 years |
| Richard Mark Sykes | Director | 4 Apr 2003 | 13 Aug 2004 | British | 65 years |
| Robert Anthony Stewart Whetstone | Director | 10 Jul 2002 | 4 Apr 2003 | British | 63 years |
| Ross William Snape | Director | 29 Nov 2005 | 29 Sept 2006 | British | 62 years |
| Shaun Davidson | Director | 9 Nov 2007 | 1 Nov 2008 | British | 58 years |
| Shaun Davidson | Director | 15 Sept 2010 | 7 Feb 2012 | British | 58 years |
| Terence Robert Last | Director | 1 Jan 2004 | 22 Feb 2008 | British | 76 years |