| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| C E S (Environmental) Systems Ltd | 01000571 | 31/07/1991 | Dissolved |
| Davy McKee Environmental Ltd | 00916462 | 31/07/1992 | Dissolved |
| Nipawin Limited | 01788873 | 25/12/1991 | Dissolved |
| Young Chemical Engineering Ltd | 00817815 | 31/07/1991 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| HEAD WRIGHTSON PROCESS ENGINEERING LIMITED | 00635264 | 31/07/1991 | 18/12/1995 | Dissolved |
| KVAERNER ENGINEERING & CONSTRUCTION UK LIMITED | 00070860 | 31/07/1991 | 18/12/1995 | Insolvent |
| KVAERNER METALS CONTINUOUS CASTING LIMITED | 00573390 | 01/08/1992 | 18/12/1995 | Not Trading |
| RYEDALE FESTIVAL TRUST LIMITED | 05976080 | 24/10/2006 | 06/04/2010 | Silver |
| UNION ELECTRIC STEEL (IPSWICH) LIMITED | 01180365 | 13/09/1994 | 18/12/1995 | Dissolved |
| UNION ELECTRIC STEEL (NEWCASTLE) LIMITED | 01025431 | 13/09/1994 | 18/12/1995 | Dissolved |
| UNION ELECTRIC STEEL UK LIMITED | 00162966 | 13/09/1994 | 18/12/1995 | Silver |
| WELDING INSTITUTE(THE) | 00405555 | 10/07/1991 | 19/06/1996 | Silver |