| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Broomco (3212) Ltd | 04814757 | 14/07/2003 | Dissolved |
| Dunstan & Wragg (Southern) Limited | 02215387 | 14/09/1991 | Dissolved |
| Fesil Investments Ltd | 05259228 | 08/11/2004 | Dissolved |
| NI-MET LIMITED | 01218024 | 30/05/1991 | Dissolved |
| Q-Met Ltd | 03525735 | 19/08/2004 | Dissolved |
| TENNANT METALLURGICAL HOLDINGS LTD | 05744577 | 04/04/2006 | Gold |
| TENNANT MIDGLEY LIMITED | 02392815 | 06/06/1991 | Dissolved |
| TENNANT NORDIC ALLOYS LIMITED | 01166561 | 30/05/1992 | Dissolved |
| Tennant Metallurgical Trustees Ltd | 01920054 | 15/06/1991 | Dissolved |
| Tensil Ltd | 03097507 | 06/09/1995 | Dissolved |
| Wreakes Investments Ltd | 01600657 | 18/07/1991 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| D & S Recycling Ltd | 01651699 | 30/03/1991 | 08/10/1993 | Dissolved |
| FESIL (ALLOYS) LIMITED | 00455498 | 14/09/1991 | 16/09/2013 | Dissolved |
| T M (DEVELOPMENTS) LIMITED | 01325811 | 30/05/1991 | 11/02/2014 | Dissolved |
| TENNANT METALLURGICAL LIMITED | 01772462 | 30/05/1991 | 11/02/2014 | Not Trading |
| TENSIL HOLDINGS LIMITED | 05259231 | 08/11/2004 | 25/05/2006 | Dissolved |
| TMG (NORTHERN) LIMITED | SC035442 | 25/04/1989 | 24/01/2001 | Dissolved |
| Tennant Nordic Ltd | 03097506 | 06/09/1995 | 15/06/2006 | Dissolved |
| WATSONS ALLOYS & METALS LIMITED | 02184300 | 30/05/1991 | 01/06/1993 | Dissolved |
| WESTBROOK RESOURCES LIMITED | 04057615 | 04/11/2002 | 11/08/2004 | Silver |