| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| EXPERT HEAT TREATMENTS (GOSPORT) LIMITED | 00726353 | 02/02/1996 | Dissolved |
| Expert Heat Treatments (Kent) Ltd | 01097220 | 14/10/1997 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CHEMICAL & INSULATING COMPANY LIMITED(THE) | 00223600 | 20/06/1991 | 30/07/1993 | Strike Off |
| DARCHEM ENGINEERING LIMITED | SC144767 | 01/11/1993 | 16/12/2005 | Gold |
| DARCHEM HOLDINGS LIMITED | 03966333 | 18/12/2000 | 16/12/2005 | Silver |
| Darchem Insulation Systems Ltd | 04910950 | 10/11/2003 | 16/12/2005 | Dissolved |
| Dresser U K Pensions Ltd | 02481672 | 14/03/1991 | 31/12/1990 | Dissolved |
| EXPERT HEAT TREATMENTS LIMITED | 04910338 | 10/11/2003 | 19/08/2005 | Gold |
| Genesis (By Mail) Ltd | 00863177 | 30/03/1993 | 30/07/1993 | Dissolved |
| INSUMAT LIMITED | 00880336 | 24/07/1996 | 16/12/2005 | Dissolved |
| Ironmasters Engineering Ltd | 04909712 | 10/11/2003 | 16/12/2005 | Dissolved |
| Praxis International Ltd | 02724922 | 23/06/1992 | 30/04/1993 | Dissolved |
| Tooling Essentials (Designs) Ltd | 01040575 | 30/03/1993 | 30/07/1993 | Dissolved |
| Tooling Essentials (Leicester) Limited | 01214624 | 30/03/1993 | 30/07/1993 | Dissolved |
| Tooling Essentials Ltd | 00612646 | 30/04/1993 | 30/07/1993 | Dissolved |
| WB INDUSTRIAL LTD. | 00554067 | 30/06/1992 | 30/07/1993 | One Red Flag |
| WEST AUCK NO. 1 LIMITED | 00540172 | 30/06/1991 | 30/07/1993 | Not Trading |
| West Auck 26 Ltd | 01410294 | 30/03/1993 | 30/07/1993 | Dissolved |
| West Auck No 12 Ltd | 00506929 | 30/03/1993 | 30/07/1993 | Dissolved |
| West Auck No 14 Ltd | 02075888 | 30/06/1991 | 30/07/1993 | Dissolved |
| West Auck No 23 Ltd | 00384657 | 30/03/1993 | 30/07/1993 | Dissolved |
| West Auck No 24 Ltd | 00332277 | 30/03/1993 | 30/07/1993 | Dissolved |
| West Auck No 3 Ltd | 00301011 | 30/03/1993 | 30/07/1993 | Dissolved |
| West Auck No 33 Ltd | 00562765 | 30/03/1993 | 30/07/1993 | Dissolved |
| West Auck No 4 Ltd | 00460484 | 30/03/1993 | 30/07/1993 | Dissolved |
| West Auck No 5 Ltd | 00544097 | 30/03/1993 | 30/07/1993 | Dissolved |
| West Auck No 7 Ltd | 00268051 | 30/04/1993 | 30/07/1993 | Dissolved |