| Andrew Charles Smith | Director | 9 Dec 1993 | 17 Dec 1999 | British | 80 years |
| Andrew Charles Smith | Secretary | 29 Oct 1999 | 28 Nov 2000 | British | - |
| Andrew Christopher Bolter | Director | 3 Sept 2012 | 4 Apr 2014 | British | 56 years |
| Brownlow Gregor Duncan | Director | 24 Mar 1989 | 3 Sept 1992 | British | 88 years |
| Christopher Gordon Reynolds | Director | 17 Jan 2008 | 18 May 2009 | British | 73 years |
| Christopher John Myatt | Director | 3 Sept 1992 | 13 Dec 1993 | British | 83 years |
| Christopher Malcolm Henry Kemp | Director | 13 Dec 1993 | 17 Dec 1999 | British | 75 years |
| David Anthony Grady | Director | 18 May 2009 | 11 Jun 2010 | British | 57 years |
| David Twells Watson | Director | 24 Mar 1989 | 9 Dec 1993 | British | 86 years |
| Eric Stansfield | Director | 24 Mar 1989 | 7 Apr 1989 | British | 88 years |
| Fiona Puleston Penhallurick | Director | 4 Apr 2014 | 15 Mar 2016 | British | 59 years |
| Harry William Goss | Secretary | 31 Aug 1989 | 29 Oct 1999 | British | - |
| Ian Gordon Sutherland Mcpherson | Director | 24 Mar 1989 | 12 Apr 1993 | British | 86 years |
| James Richard Stirk | Director | 11 Jun 2010 | 14 Dec 2012 | British | 67 years |
| Lafarge Tarmac Directors (uk) Limited | Corporate Director | 20 Jan 2014 | 27 Aug 2015 | United Kingdom | - |
| Michael John Choules | Director | 27 Aug 2015 | 9 Apr 2021 | British | 66 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 | 17 Dec 1999 | 20 Jan 2014 | United Kingdom | - |
| Tarmac Nominees Two Limited | Corporate Director | 17 Dec 1999 | 20 Jan 2014 | United Kingdom | - |
| Tarmac Nominees Two Limited | Corporate Secretary | 28 Nov 2000 | 20 Jan 2014 | United Kingdom | - |
| William Nash | Director | 24 Mar 1989 | 31 Aug 1989 | British | 100 years |
| William Nash | Secretary | 24 Mar 1989 | 31 Aug 1989 | British | - |
