| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Clyde Shaw Ltd | SC085744 | 08/06/1989 | Dissolved |
| Diemould Castings Limited | 01077278 | 30/11/1990 | Dissolved |
| Humbershield Ltd | 01687310 | 11/04/1992 | Dissolved |
| M M Components Ltd | 01519819 | 28/11/1991 | Dissolved |
| M M Engineering Ltd | 01519584 | 09/08/1991 | Dissolved |
| MICRO-METALSMITHS LIMITED | 00786649 | 14/05/1992 | Dissolved |
| Micro-Metalsmiths Microwave Ltd | 01519268 | 30/11/1990 | Dissolved |
| SUPERPROP LTD | 08857426 | 23/01/2014 | Amber |
| Supercruiser Associates Limited | 01573569 | 26/05/1991 | Dissolved |
| Wittrick Cim Ltd | 02073323 | 31/12/1991 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BABCOCK ASSESSMENTS LIMITED | 02881056 | 24/05/1994 | 30/05/1996 | One Red Flag |
| HARKERS ENGINEERING LIMITED | 00408233 | 08/11/1991 | 18/08/1993 | Insolvent |
| MICRO-METALSMITHS LIMITED | 00786649 | 17/04/2002 | 12/03/2003 | Dissolved |
| PHYNOVA GROUP LIMITED | 05202283 | 01/08/2010 | 31/10/2014 | One Red Flag |
| SYLATECH LIMITED | 08870148 | 18/03/2014 | 02/02/2021 | Silver |
| The North Yorkshire Training & Enterprise Council Ltd | 02436410 | 20/01/1995 | 23/03/2000 | Dissolved |
| UNIVERSITY OF TEESSIDE ENTERPRISES LIMITED | 02455705 | 28/12/1991 | 20/02/1995 | Bronze |