| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Chemical Packing Co (Acton) Ltd | 00975137 | 12/09/2003 | Dissolved |
| Devon Kaolin Production Co Ltd | 05249200 | 08/10/2004 | Dissolved |
| Feslente Ltd | 00391748 | 12/09/2003 | Dissolved |
| Hinckley Estates Ltd | 00235099 | 12/09/2003 | Dissolved |
| Wbb Industrial Ceramics Ltd | 00541024 | 12/09/2003 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ARNOLD SANDS LIMITED | 00268850 | 12/09/2003 | 31/12/2006 | Dissolved |
| ASSOCIATED SILICAS LIMITED | 00378505 | 12/09/2003 | 31/12/2006 | Dissolved |
| BLUBBERHOUSES MOOR LIMITED | 02624570 | 12/09/2003 | 31/12/2006 | One Red Flag |
| BRITISH INDUSTRIAL SAND(SCOTLAND)LIMITED | SC023066 | 12/09/2003 | 31/12/2006 | Dissolved |
| DEVON AND COURTENAY CLAY COMPANY,LIMITED(THE) | 00075728 | 12/09/2003 | 31/12/2006 | Dissolved |
| FORDATH LIMITED | 00166352 | 12/09/2003 | 31/12/2006 | Not Trading |
| Fordath Developments Ltd | 01028117 | 12/09/2003 | 31/12/2006 | Dissolved |
| NEWTON ABBOT CLAYS,LIMITED(THE) | 00153429 | 12/09/2003 | 31/12/2006 | Dissolved |
| NORTH DEVON CLAY COMPANY LIMITED | 00038897 | 12/09/2003 | 31/12/2006 | Dissolved |
| SIBELCO GREEN SOLUTIONS UK LIMITED | 01009716 | 12/09/2003 | 31/12/2006 | Bronze |
| SIBELCO MINERALS AND CHEMICALS (HOLDINGS) LIMITED | 00495403 | 12/09/2003 | 31/12/2006 | Gold |
| SIBELCO UK LIMITED | 00578631 | 12/09/2003 | 31/12/2006 | Bronze |
| WATTS BLAKE BEARNE AND COMPANY LIMITED | 00133468 | 11/12/1998 | 31/12/2006 | Silver |
| WBB DEVON CLAYS LIMITED | 02394306 | 12/09/2003 | 31/12/2006 | Dissolved |
| WBB MINERALS (HOLDINGS) LIMITED | 02169028 | 08/04/2002 | 31/12/2006 | Dissolved |
| WBB TECHNOLOGY LIMITED | 01329637 | 12/09/2003 | 31/12/2006 | Dissolved |