| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Amco Drilling Ltd | 01556639 | 14/08/1998 | Dissolved |
| Amco Orebit Ltd | 03171198 | 04/07/1996 | Dissolved |
| Doncaster Well Borers Ltd | 01808999 | 14/08/1998 | Dissolved |
| Dosco Mining Services Ltd | 02203963 | 09/07/1998 | Dissolved |
| Fairdrill Drilling & Blasting Contractors Ltd | 01263073 | 14/08/1998 | Dissolved |
| Glendale Project Management Ltd | 02043834 | 14/08/1998 | Dissolved |
| Gordon Plant Hire & Earth Moving Ltd | 02542799 | 14/08/1998 | Dissolved |
| Le Grand (Well Drilling & Engineering) Co Ltd | 01387862 | 14/08/1998 | Dissolved |
| Mitchell Brothers Sons & Co Ltd | 00638263 | 14/08/1998 | Dissolved |
| P A Wilkinson (Holton Heath) Ltd | 03087806 | 03/12/1998 | Dissolved |
| TURMAG (GREAT BRITAIN) LIMITED | SC010139 | 01/02/1991 | Dissolved |
| Ventrace Builders Ltd | 02417646 | 14/08/1998 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| A M Mining Services Ltd | 02823161 | 18/06/1993 | 22/09/1997 | Dissolved |
| AMALGAMATED CONSTRUCTION LTD | 00995892 | 09/06/1991 | 22/09/1997 | Bronze |
| AMALGAMATED CONSTRUCTION LTD | 00995892 | 25/08/1993 | 29/09/1999 | Bronze |
| AMCO DRILLING (INTERNATIONAL) LIMITED | 01123503 | 09/06/1991 | 25/10/1995 | Strike Off |
| AMCO PENSION SCHEME TRUSTEES LTD | 01450656 | 09/06/1991 | 24/03/1993 | Dissolved |
| Amco Engineering Ltd | 02974357 | 02/11/1994 | 03/10/1995 | Dissolved |
| Amco Engineering Ltd | 02974357 | 18/10/1994 | 03/10/1995 | Dissolved |
| Amco Robertson Mineral Services Ltd | 03626841 | 04/09/1998 | 26/02/1999 | Dissolved |
| Amco Technical Services Ltd | 01269739 | 09/06/1991 | 05/11/1992 | Dissolved |
| Amploy Bureau Ltd | 02877683 | 16/12/1993 | 23/02/1994 | Dissolved |
| Amtec Services Ltd | 02873201 | 30/11/1993 | 22/09/1997 | Dissolved |
| CHECKHIRE LIMITED | 02637538 | 28/08/1997 | 04/10/2001 | Silver |
| Doncaster Well Borers Ltd | 01808999 | 09/06/1991 | 25/10/1995 | Dissolved |
| Fairdrill Drilling & Blasting Contractors Ltd | 01263073 | 09/06/1991 | 28/08/1997 | Dissolved |
| Le Grand (Well Drilling & Engineering) Co Ltd | 01387862 | 09/06/1991 | 28/08/1997 | Dissolved |
| P A Wilkinson (Holton Heath) Ltd | 03087806 | 04/10/1995 | 29/11/1996 | Dissolved |
| Road Transport Services Ltd | 02974083 | 02/11/1994 | 02/11/1994 | Dissolved |
| Road Transport Services Ltd | 02974083 | 18/10/1994 | 02/11/1994 | Dissolved |
| SHEFFIELD EAGLES 2000 LIMITED | 03871551 | 17/11/1999 | 23/12/1999 | Amber |