| Andrew Christopher Bolter | Director | 3 Sept 2012 | 4 Apr 2014 | British | 56 years |
| Christopher Gordon Reynolds | Director | 17 Jan 2008 | 18 May 2009 | British | 73 years |
| Clive Cadwgan James | Director | 23 Apr 1998 | 16 May 2005 | British | 78 years |
| David Anthony Grady | Director | 18 May 2009 | 11 Jun 2010 | British | 57 years |
| David Bruce Moore | Director | 23 Apr 1998 | 7 May 1999 | British | 75 years |
| Deborah Grimason | Director | 28 Jun 2013 | 20 Nov 2013 | British | 63 years |
| Derek Priestley | Director | 25 Dec 1991 | 23 Apr 1998 | British | 96 years |
| Douglas Priestley | Director | 25 Dec 1991 | 1 Jan 1992 | British | 98 years |
| Fiona Puleston Penhallurick | Director | 4 Apr 2014 | 15 Mar 2016 | British | 59 years |
| Geoffrey Priestley | Director | 25 Dec 1991 | 12 Jun 1997 | British | 94 years |
| Helen Douglas | Director | 23 Apr 1998 | 16 May 2005 | British | 66 years |
| Helen Douglas | Secretary | 23 Apr 1998 | 16 May 2005 | British | - |
| James Richard Stirk | Director | 11 Jun 2010 | 14 Dec 2012 | British | 67 years |
| Katherine Ann Priestley | Secretary | 25 Apr 1994 | 23 Apr 1998 | British | - |
| Keith Michael Thomas | Secretary | 25 Dec 1991 | 25 Apr 1994 | British | - |
| Lafarge Tarmac Directors (uk) Limited | Corporate Director | 28 Jun 2013 | 27 Aug 2015 | United Kingdom | - |
| Michael John Choules | Director | 27 Aug 2015 | 9 Apr 2021 | British | 66 years |
| Miriam Taylor Priestley | Director | 25 Dec 1991 | 1 Jan 1992 | British | 121 years |
| Richard John Wood | Director | 9 Apr 2021 | 30 Sept 2022 | British | 54 years |
| Ruth Sarah Button | Director | 30 Sept 2022 | 1 Oct 2025 | British | 42 years |
| Tarmac Nominees Limited | Corporate Director | 16 May 2005 | 29 Jun 2013 | United Kingdom | - |
| Tarmac Nominees Two Limited | Corporate Director | 16 May 2005 | 29 Jun 2013 | United Kingdom | - |
| Tarmac Nominees Two Limited | Corporate Secretary | 16 May 2005 | 29 Jun 2013 | United Kingdom | - |
