| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ETON AGGREGATES LIMITED | 02950542 | 26/10/2005 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CAMBRIAN STONE LIMITED | 01579754 | 16/04/2013 | 04/05/2021 | Gold |
| EAST COAST SLAG PRODUCTS LIMITED | 00330538 | 16/04/2013 | 04/05/2021 | Gold |
| ELSTOW ASPHALT LIMITED | 05172782 | 16/04/2013 | 31/08/2016 | Dissolved |
| GRS (ROADSTONE) LIMITED | 03261275 | 08/08/2013 | 07/07/2021 | Bronze |
| GRS ROADSTONE GROUP LIMITED | 09017603 | 01/09/2014 | 07/07/2021 | Silver |
| GRS ROADSTONE HOLDINGS LIMITED | 05089357 | 08/08/2013 | 07/07/2021 | Not Trading |
| HARLOW ASPHALT LIMITED | 04463542 | 16/04/2013 | 31/08/2016 | Insolvent |
| HEPPLEWHITE QUARRIES & PLANT HIRE LIMITED | 00763141 | 16/04/2013 | 25/07/2018 | Dissolved |
| LAL-GRS LIMITED | 05152586 | 29/04/2013 | 29/04/2013 | One Red Flag |
| LTM (CITY OF LONDON) LIMITED | 02438805 | 16/04/2013 | 08/03/2017 | Silver |
| LTM (CITY OF WESTMINSTER) LIMITED | 02488552 | 16/04/2013 | 08/03/2017 | Bronze |
| LTM (SOUTHERN) LIMITED | 01908305 | 16/04/2013 | 08/03/2017 | Bronze |
| LTM (WESTERN) LIMITED | 02139984 | 16/04/2013 | 08/03/2017 | One Red Flag |
| MINERAL PRODUCTS ASSOCIATION LIMITED | 01634996 | 01/02/2016 | 31/12/2020 | Silver |
| NEWHAVEN ROADSTONE LIMITED | 04295593 | 31/12/2005 | 16/10/2009 | Dissolved |
| R.H. ROADSTONE LIMITED | 01923855 | 16/04/2013 | 04/05/2021 | Gold |
| REDLAND PROPERTIES LIMITED | 00433750 | 16/04/2013 | 04/05/2021 | Gold |
| REDLAND PROPERTY HOLDINGS LIMITED | 00213761 | 16/04/2013 | 04/05/2021 | Silver |
| TARMAC (SOUTH WESTERN) LIMITED | 04026403 | 16/04/2013 | 04/05/2021 | Gold |
| TARMAC AGGREGATES LIMITED | 00297905 | 04/04/2013 | 30/03/2021 | Silver |
| TARMAC BRISTOL RECYCLED AGGREGATES LIMITED | 05484014 | 17/06/2005 | 13/01/2014 | Dissolved |
| TARMAC BUILDING PRODUCTS LIMITED | 04026569 | 22/05/2015 | 30/03/2021 | Gold |
| TARMAC CALEDONIAN LIMITED | SC176011 | 16/04/2013 | 04/05/2021 | Bronze |
| TARMAC CEMENT LIMITED | 00066558 | 22/05/2015 | 30/03/2021 | Silver |
| TARMAC HOLDINGS LIMITED | 07533961 | 19/01/2016 | 30/03/2021 | Gold |
| TARMAC MARINE LIMITED | 02105370 | 16/04/2013 | 08/03/2017 | Silver |
| TARMAC SERVICES LIMITED | 08197397 | 28/01/2013 | 30/03/2021 | Silver |
| TARMAC SOUTHERN LIMITED | 00415260 | 24/01/2003 | 16/05/2005 | Dissolved |
| TARMAC TRADING LIMITED | 00453791 | 04/04/2013 | 30/03/2021 | Gold |
| VAL DE TRAVERS ASPHALTE LIMITED | 00005292 | 15/08/2016 | 04/05/2021 | Not Trading |