| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ALUMINIUM ALLOY MANUFACTURING AND RECYCLING ASSOCIATION | 00607045 | 16/11/2000 | Dissolved |
| BULK HANDLING LIMITED | 05491406 | 14/02/2007 | Amber |
| Frostian Ltd | 02996036 | 15/12/1998 | Dissolved |
| HI-FINISH CASTING LIMITED | 04526020 | 24/10/2002 | Dissolved |
| HYTEC CASTINGS LIMITED | 05842976 | 04/01/2011 | Bronze |
| Homes @ Ltd | 04341322 | 17/05/2007 | Dissolved |
| KIVETON PARK STEEL AEROSPACE MATERIALS LIMITED | 09996838 | 10/02/2016 | Silver |
| KIVETON PARK STEEL LTD | 15659252 | 18/04/2024 | Amber |
| Landmark Casting Ltd | 03943331 | 15/05/2000 | Dissolved |
| Landmark Industries Ltd | 03665707 | 08/12/1998 | Dissolved |
| NAL REALISATIONS (STAFFORDSHIRE) LIMITED | 00505253 | 14/07/2000 | Insolvent |
| ND2016 PROPERTY LTD | 10024251 | 24/02/2016 | Silver |
| NORSE PRECISION CASTINGS LIMITED | 01331795 | 24/02/2009 | Silver |
| NORTON ALUMINIUM LIMITED | 04057749 | 22/08/2000 | Insolvent |
| Procast Components Ltd | 02171575 | 23/03/2010 | Dissolved |
| Procast Quality Finishers Ltd | 03177992 | 23/03/2010 | Dissolved |
| RENFORCE MANUFACTURING LTD | 12579547 | 29/02/2024 | Bronze |
| S.T.B. ENGINEERING LIMITED | 00958390 | 01/10/2002 | One Red Flag |
| S.T.B. ENGINEERING LIMITED | 00958390 | 04/02/1997 | One Red Flag |
| WILLHELM LIMITED | 03303366 | 01/10/2002 | Gold |
| WILLHELM LIMITED | 03303366 | 04/02/1997 | Gold |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ALUMINIUM FEDERATION LIMITED | 00723801 | 27/09/2001 | 12/08/2013 | Silver |
| HI-FINISH LIMITED | 06749590 | 14/11/2008 | 01/09/2010 | Bronze |
| SPM (EUROPE) LIMITED | 00358794 | 18/11/1994 | 29/02/1996 | Not Trading |
| W.J. DICKINSON & SONS (FARMERS) LIMITED | 00372265 | 14/04/1992 | 01/07/1997 | Silver |