| Andrew Christopher Bolter | Director | 3 Sept 2012 | 4 Apr 2014 | British | 56 years |
| Christopher John Slavin | Director | 28 Jun 1995 | 19 Jun 2008 | British | 81 years |
| Clive Cadwgan James | Director | 1 Oct 1994 | 30 Apr 2009 | British | 78 years |
| David Anthony Grady | Director | 13 Jul 2009 | 11 Jun 2010 | British | 57 years |
| David Bruce Moore | Director | 30 Sept 1992 | 7 May 1999 | British | 75 years |
| Fiona Puleston Penhallurick | Director | 4 Apr 2014 | 15 Mar 2016 | British | 59 years |
| Frank Chilton | Director | 1 Jan 1994 | 31 May 1995 | British | 93 years |
| Geoffrey Mortimer | Director | 30 Sept 1992 | 30 Mar 1993 | British | 82 years |
| Guy Franklin Young | Director | 13 Jan 2014 | 31 Oct 2015 | South African | 57 years |
| Helen Douglas | Director | 1 Jan 1994 | 16 May 2005 | British | 66 years |
| Helen Douglas | Secretary | 30 Sept 1992 | 16 May 2005 | British | - |
| Ian Pughsley | Director | 23 Jun 1994 | 17 Mar 1998 | British | 72 years |
| James Richard Stirk | Director | 11 Jun 2010 | 14 Dec 2012 | British | 67 years |
| James Richard Stirk | Secretary | 16 May 2005 | 30 Nov 2012 | British | - |
| Jean-pierre Janse Van Rensburg | Director | 13 Jan 2014 | 31 Aug 2016 | British | 52 years |
| John Douglas Graeme Groom | Director | 23 Jun 1994 | 4 Dec 1997 | British | 79 years |
| John Draper | Director | 30 Sept 1992 | 6 Jul 1999 | British | 85 years |
| John Richard Bradshaw | Secretary | 30 Nov 2012 | 28 Jun 2013 | British | - |
| Kenneth Andrew Boylett | Director | 30 Sept 1992 | 12 Sept 1995 | British | 89 years |
| Kenneth Stephen Clare | Director | 13 Mar 1996 | 16 May 2005 | British | 77 years |
| Lafarge Tarmac Directors (uk) Limited | Corporate Director | 13 Jan 2014 | 27 Aug 2015 | United Kingdom | - |
| Leslie Alan Tinker | Director | 30 Sept 1992 | 31 Jan 1999 | British | 80 years |
| Michael John Choules | Director | 27 Aug 2015 | 9 Apr 2021 | British | 66 years |
| Peter Ronald Benson | Director | 13 Mar 1996 | 12 Jan 1998 | British | 78 years |
| Richard John Wood | Director | 9 Apr 2021 | 30 Sept 2022 | British | 54 years |
| Robert Sinclair Robertson | Director | 20 Jun 1997 | 15 Dec 2006 | British | 75 years |
| Roger John Parnell | Director | 30 Sept 1992 | 20 Jun 2008 | British | 83 years |
| Ruth Sarah Button | Director | 30 Sept 2022 | 1 Oct 2025 | British | 42 years |
| Stuart Maurice Haines | Director | 12 Sept 1995 | 16 May 2005 | British | 69 years |
| Tarmac Nominees Limited | Corporate Director | 13 Jul 2009 | 13 Jan 2014 | United Kingdom | - |
| Tarmac Nominees Two Limited | Corporate Director | 13 Jul 2009 | 13 Jan 2014 | United Kingdom | - |
| William Nicholas Pilling | Director | 30 Sept 1992 | 30 Sept 1994 | British | 88 years |