| Andrew Christopher Bolter | Director | 3 Sept 2012 | 4 Apr 2014 | British | 56 years |
| Andrew Robert Simpson | Director | 12 May 2005 | 2 Sept 2009 | British | 72 years |
| Charles Anthony Wentzel | Secretary | 31 Mar 1992 | 17 Jul 1992 | British | - |
| David Anthony Grady | Director | 2 Sept 2009 | 11 Jun 2010 | British | 57 years |
| David Thomas Johnson | Secretary | 17 Jul 1992 | 2 Sept 2009 | British | - |
| Deborah Grimason | Director | 28 Jun 2013 | 20 Nov 2013 | British | 63 years |
| Derek Smith | Director | 5 Jul 1999 | 31 Mar 2001 | British | 75 years |
| Fiona Puleston Penhallurick | Director | 4 Apr 2014 | 15 Mar 2016 | British | 59 years |
| James Richard Stirk | Director | 11 Jun 2010 | 14 Dec 2012 | British | 67 years |
| John Draper | Director | 31 Mar 1992 | 5 Jul 1999 | British | 85 years |
| Lafarge Tarmac Directors (uk) Limited | Corporate Director | 28 Jun 2013 | 27 Aug 2015 | United Kingdom | - |
| Malcolm Warren Thompson | Director | 14 Nov 2001 | 12 May 2005 | British | 59 years |
| Michael John Choules | Director | 27 Aug 2015 | 9 Apr 2021 | British | 66 years |
| Richard Ashton Lister | Director | 19 Sept 1991 | 31 Mar 1992 | British | 85 years |
| Richard Ashton Lister | Secretary | 19 Sept 1991 | 31 Mar 1992 | British | - |
| Richard John Wood | Director | 9 Apr 2021 | 30 Sept 2022 | British | 54 years |
| Robert Sinclair Robertson | Director | 22 Jul 1997 | 5 Jul 1999 | British | 75 years |
| Ruth Sarah Button | Director | 30 Sept 2022 | 1 Oct 2025 | British | 42 years |
| Tarmac Nominees Limited | Corporate Director | 12 Dec 2006 | 29 Jun 2013 | United Kingdom | - |
| Tarmac Nominees Two Limited | Corporate Director | 2 Sept 2009 | 29 Jun 2013 | United Kingdom | - |
| Tarmac Nominees Two Limited | Corporate Secretary | 2 Sept 2009 | 29 Jun 2013 | United Kingdom | - |
| Timothy Conrad Langston Hall | Director | 27 Jul 1995 | 2 Sept 2009 | English | 73 years |
| William Potter | Director | 19 Sept 1991 | 27 Jul 1995 | British | 94 years |
