| Andrew Christopher Bolter | Director | 13 Jan 2014 | 4 Apr 2014 | British | 56 years |
| Anthony James Martin | Director | 20 Jun 2001 | 28 Feb 2002 | British | 82 years |
| Clive Jonathan Mottram | Director | 15 Jun 2009 | 2 Jun 2010 | British | 67 years |
| Clive Jonathan Mottram | Secretary | 19 Jun 2009 | 4 Jan 2010 | British | - |
| Deborah Grimason | Director | 13 Apr 2007 | 19 Jun 2009 | British | 63 years |
| Deborah Grimason | Director | 1 Jan 2012 | 20 Nov 2013 | British | 63 years |
| Deborah Grimason | Secretary | 13 Apr 2007 | 19 Jun 2009 | British | - |
| Drusilla Charlotte Jane Rowe | Nominee Director | 23 May 2001 | 20 Jun 2001 | British | 65 years |
| Elaine Christina Klonarides | Director | 27 Apr 2018 | 7 Dec 2022 | British | 50 years |
| Eleanor Jane Zuercher | Nominee Director | 23 May 2001 | 20 Jun 2001 | British | 63 years |
| Fiona Puleston Penhallurick | Director | 4 Apr 2014 | 10 Jul 2015 | British | 59 years |
| Ghyslain Wattrelos | Director | 10 Jul 2015 | 5 Feb 2016 | French | 62 years |
| Gordon Francis Franklin | Director | 20 Jun 2001 | 14 Dec 2001 | British | 82 years |
| Gordon Francis Franklin | Secretary | 20 Jun 2001 | 14 Dec 2001 | British | - |
| Ian Maclean Reid | Director | 14 Dec 2001 | 4 Apr 2003 | British | 81 years |
| James Edward Synge Barton | Director | 20 Jun 2001 | 20 Jun 2001 | British | 52 years |
| James Paul Maher | Director | 7 Dec 2022 | 27 Mar 2024 | British | 48 years |
| James Rushworth Hope Loudon | Director | 20 Jun 2001 | 25 Jul 2001 | British | 83 years |
| James West Atherton-ham | Director | 5 Feb 2016 | 8 Dec 2020 | British | 56 years |
| John Ferguson Bowater | Director | 5 Feb 2016 | 31 Dec 2022 | British | 77 years |
| John Michael Mills | Director | 10 Jul 2015 | 5 Apr 2018 | British | 62 years |
| Katherine Mary Hughes | Director | 20 Jun 2001 | 20 Jun 2001 | British | 58 years |
| Lafarge Tarmac Directors (uk) Limited | Corporate Director | 1 Feb 2010 | 10 Jul 2015 | United Kingdom | - |
| Lafarge Tarmac Secretaries (uk) Limited | Corporate Secretary | 4 Jan 2010 | 10 Jul 2015 | United Kingdom | - |
| Marie-cecile Collignon | Director | 1 Sept 2011 | 31 Dec 2011 | French | 50 years |
| Michael John Choules | Director | 12 Sept 2014 | 10 Jul 2015 | British | 66 years |
| Neil Gerard Curtis | Director | 10 Jul 2015 | 5 Feb 2016 | Irish | 57 years |
| Peter William Joseph Mills | Director | 6 Apr 2003 | 30 Jun 2010 | British | 73 years |
| Phillip Thomas Edward Lanyon | Director | 16 Aug 2010 | 13 Jan 2014 | British | 62 years |
| Raymond Alfred Elliott | Director | 14 Dec 2001 | 13 Apr 2007 | British | 79 years |
| Raymond Alfred Elliott | Secretary | 14 Dec 2001 | 13 Apr 2007 | British | - |
| Rebecca Joan Powell | Director | 5 Jan 2011 | 1 Sept 2011 | British | 54 years |
| Richard Francis Tapp | Director | 20 Jun 2001 | 14 Dec 2001 | British | 67 years |
| Sonia Fennell | Director | 7 Jun 2010 | 5 Jan 2011 | British | 67 years |
| Trusec Limited | Corporate Nominee Secretary | 23 May 2001 | 20 Jun 2001 | - | - |