| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ALBA MINERAL RESOURCES PLC | 05285814 | 01/09/2006 | Silver |
| KENNET VALLEY ARTS TRUST | 03188787 | 30/06/2003 | Dissolved |
| MAGYAR MINING LIMITED | 04617884 | 02/07/2004 | Dissolved |
| Star Employment Agency Ltd. | 03430199 | 05/09/1997 | Dissolved |
| Star Employment Agency Ltd. | 03430199 | 05/09/1997 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| GREENROC STRATEGIC MATERIALS PLC | 13273964 | 17/03/2021 | 27/08/2021 | Bronze |
| INSTITUTE OF QUARRYING(THE) | 00606601 | 31/10/1991 | 01/10/1993 | One Red Flag |
| MAURITANIA VENTURES LIMITED | 05654728 | 01/12/2006 | 22/02/2007 | Dissolved |
| MAURITANIA VENTURES LIMITED | 05654728 | 01/12/2006 | 03/12/2017 | Dissolved |
| RED ROCK RESOURCES PLC | 05225394 | 22/09/2006 | 12/02/2021 | Amber |