| Name | Company Number | Date Appointed | Rating |
|---|
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ALSTON LIMESTONE COMPANY (THE) LIMITED | 00099241 | 01/02/2011 | 29/06/2013 | Dissolved |
| ANGLO AMERICAN (TIIL) INVESTMENTS LIMITED | 02827852 | 30/03/2012 | 22/10/2013 | Dissolved |
| BARONSCOURT QUARRIES LIMITED | NI025315 | 01/02/2011 | 31/10/2015 | Dissolved |
| BDP SURFACING LIMITED | 03355526 | 01/02/2011 | 17/04/2013 | Insolvent |
| BRISTOL CHANNEL AGGREGATES LIMITED | 02730574 | 01/02/2011 | 29/06/2013 | Dissolved |
| BUXTON LIME INDUSTRIES LIMITED | 02649831 | 13/01/2014 | 31/10/2015 | Not Trading |
| CAMBRIAN STONE LIMITED | 01579754 | 01/02/2011 | 17/04/2013 | Gold |
| CEMCOR LTD | 09559778 | 24/04/2015 | 20/07/2015 | One Red Flag |
| EAST COAST SLAG PRODUCTS LIMITED | 00330538 | 01/02/2011 | 17/04/2013 | Gold |
| HEMELITE LIMITED | 08210527 | 31/03/2014 | 31/10/2015 | Dissolved |
| HOPE READY MIXED CONCRETE LIMITED | 08132394 | 05/07/2012 | 07/01/2013 | Bronze |
| HUW HOWATSON LIMITED | 02631810 | 01/02/2011 | 17/04/2013 | Dissolved |
| LAFARGE CAULDON LIMITED | 09326237 | 25/11/2014 | 20/07/2015 | Silver |
| LTM (CITY OF LONDON) LIMITED | 02438805 | 01/02/2011 | 17/04/2013 | Silver |
| LTM (CITY OF WESTMINSTER) LIMITED | 02488552 | 01/02/2011 | 17/04/2013 | Bronze |
| LTM (SOUTHERN) LIMITED | 01908305 | 01/02/2011 | 17/04/2013 | Bronze |
| LTM (WESTERN) LIMITED | 02139984 | 01/02/2011 | 17/04/2013 | One Red Flag |
| LTM CREWING SERVICES LIMITED | 05377235 | 01/02/2011 | 13/01/2014 | Bronze |
| MOFFATTS' (DRUMQUIN) LIMITED | NI004976 | 01/02/2011 | 31/10/2015 | Insolvent |
| NATIONAL ROAD PLANING LIMITED | 02800915 | 01/02/2011 | 17/04/2013 | Gold |
| RANCHAUS NO 16 LIMITED | 03360906 | 01/02/2011 | 31/10/2015 | Dissolved |
| REDLAND LIMITED | 00137294 | 13/01/2014 | 31/10/2015 | Gold |
| REDLAND MINERALS LIMITED | 00034597 | 13/01/2014 | 31/10/2015 | Amber |
| SITUSEC LIMITED | 01431488 | 01/02/2011 | 29/06/2013 | Dissolved |
| SOLENT AGGREGATES LIMITED | 02730599 | 01/02/2011 | 29/06/2013 | Not Trading |
| TARMAC (SOUTH WESTERN) LIMITED | 04026403 | 01/02/2011 | 17/04/2013 | Gold |
| TARMAC (UK) SERVICES LIMITED | 03540172 | 04/04/2013 | 31/10/2015 | Dissolved |
| TARMAC AGGREGATES LIMITED | 00297905 | 04/04/2013 | 31/10/2015 | Silver |
| TARMAC BUILDING PRODUCTS LIMITED | 04026569 | 31/03/2014 | 31/10/2015 | Gold |
| TARMAC CALEDONIAN LIMITED | SC176011 | 01/02/2011 | 17/04/2013 | Bronze |
| TARMAC CEMENT LIMITED | 00066558 | 04/04/2013 | 31/10/2015 | Silver |
| TARMAC CENTRAL LIMITED | 03140503 | 01/02/2011 | 31/10/2015 | Not Trading |
| TARMAC DIRECTORS (UK) LIMITED | 03221775 | 28/03/2013 | 31/10/2015 | Not Trading |
| TARMAC GROUP LIMITED | 03751525 | 21/01/2011 | 29/06/2013 | Not Trading |
| TARMAC HOLDINGS (THL) LIMITED | 00132583 | 10/04/2012 | 31/10/2015 | Not Trading |
| TARMAC INDUSTRIAL MINERALS HOLDINGS LIMITED | 02649815 | 10/04/2012 | 31/10/2015 | Insolvent |
| TARMAC INDUSTRIAL MINERALS LIMITED | 03062299 | 10/04/2012 | 31/10/2015 | Insolvent |
| TARMAC MARINE LIMITED | 02105370 | 01/02/2011 | 17/04/2013 | Silver |
| TARMAC NORTHERN LIMITED | 03140596 | 01/02/2011 | 31/10/2015 | Not Trading |
| TARMAC SECRETARIES (UK) LIMITED | 00532256 | 28/03/2013 | 31/10/2015 | Not Trading |
| TARMAC SERVICES LIMITED | 08197397 | 28/01/2013 | 31/10/2015 | Silver |
| TARMAC SOUTHERN LIMITED | 00415260 | 01/02/2011 | 29/06/2013 | Dissolved |
| TARMAC TRADING LIMITED | 00453791 | 21/01/2011 | 31/10/2015 | Gold |
| TARMAC WESTERN LIMITED | 01640664 | 01/02/2011 | 31/10/2015 | Not Trading |
| TERMODECK LIMITED | 08210592 | 31/03/2014 | 31/10/2015 | Dissolved |
| TILCON HOLDINGS LIMITED | 00208835 | 13/01/2014 | 31/10/2015 | Gold |
| TILCON TRUPAK LIMITED | 08210364 | 31/03/2014 | 31/10/2015 | Dissolved |
| UNITED MARINE AGGREGATES LIMITED | 02336081 | 01/02/2011 | 29/06/2013 | Insolvent |
| UNITED MARINE HOLDINGS LIMITED | 02446702 | 01/02/2011 | 29/06/2013 | Dissolved |