| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Insulating Products Ltd | 05412447 | 12/05/2005 | Dissolved |
| PRO-METAL HOLDINGS (EA) LIMITED | 07984889 | 09/03/2012 | Gold |
| PRO-METAL MANUFACTURING LIMITED | 03603319 | 25/02/2000 | Gold |
| PRO-METAL PRODUCTS LIMITED | 03335911 | 28/03/2000 | Silver |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ARGENTO UK LIMITED | 03971097 | 14/06/2000 | 21/07/2006 | Dissolved |
| EMERSON CLIMATE TECHNOLOGIES RETAIL SOLUTIONS UK LIMITED | 03154438 | 02/07/1996 | 01/12/2005 | Dissolved |
| Fountain Manufacturing Ltd | 02182798 | 18/12/1990 | 19/02/1999 | Dissolved |
| HENSON DELAYED VALVES LIMITED | 04055230 | 21/07/2006 | 30/11/2007 | Dissolved |
| Hubbard Group Services Ltd | 01406090 | 13/07/1991 | 13/07/1994 | Dissolved |
| Hubbard Refrigeration Ltd | 00851922 | 14/07/1991 | 18/03/1993 | Dissolved |
| Hubbard-Reader Group Ltd | 01137239 | 13/07/1991 | 01/12/1994 | Dissolved |
| PORKKA (UK) LIMITED | 02201557 | 21/12/1991 | 23/05/1994 | Bronze |
| SAPPHIRE COOLING SERVICES LIMITED | 03536237 | 02/06/1998 | 18/11/2020 | Bronze |