| Name | Company Number | Date Appointed | Rating |
|---|
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BLUBBERHOUSES MOOR LIMITED | 02624570 | 26/07/2010 | 01/01/2015 | One Red Flag |
| DEVON AND COURTENAY CLAY COMPANY,LIMITED(THE) | 00075728 | 01/01/2007 | 01/01/2015 | Dissolved |
| SIBELCO GREEN SOLUTIONS UK LIMITED | 01009716 | 01/01/2007 | 01/01/2015 | Bronze |
| SIBELCO MINERALS AND CHEMICALS (HOLDINGS) LIMITED | 00495403 | 01/01/2007 | 01/01/2015 | Gold |
| SIBELCO UK LIMITED | 00578631 | 01/01/2007 | 01/01/2015 | Bronze |
| WATTS BLAKE BEARNE AND COMPANY LIMITED | 00133468 | 01/01/2007 | 01/01/2015 | Silver |