| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| D V Eng Services Ltd | 02297664 | 06/11/2000 | Dissolved |
| NEECOL LIMITED | 00191688 | 06/11/2000 | Strike Off |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CLEEVE MATERIALS HANDLING LIMITED | 06872446 | 07/04/2009 | 30/11/2017 | One Red Flag |
| DON VALLEY ENGINEERING COMPANY LIMITED | 00439915 | 29/10/1993 | 30/11/2017 | Bronze |
| DON VALLEY ENGINEERING CONSTRUCTION LIMITED | 03856995 | 06/11/2000 | 30/11/2017 | Gold |
| DON VALLEY ENGINEERING GROUP LIMITED | 06389130 | 03/10/2007 | 30/11/2017 | Bronze |
| DON VALLEY ENGINEERING HOLDINGS LIMITED | 07210081 | 31/03/2010 | 27/03/2019 | Silver |
| MINERALS ENGINEERING SOCIETY(THE) | 01266014 | 06/09/1996 | 12/09/1997 | Dissolved |
| MUD RENTALS LIMITED | SC161950 | 30/11/1995 | 04/11/2003 | Dissolved |
| TORVER ENGINEERING LIMITED | 07103824 | 14/12/2009 | 30/11/2017 | Not Trading |