| Name | Company Number | Date Appointed | Rating |
|---|
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| Bray Technologies Ltd | 01034547 | 31/08/1991 | 30/06/2001 | Dissolved |
| Bray Thermal Systems Ltd | 00322524 | 31/08/1991 | 30/06/2001 | Dissolved |
| British Gas & Oil Burners Ltd | 00272748 | 31/08/1991 | 30/06/2001 | Dissolved |
| Eurocare Environmental Services Ltd | SC180112 | 15/04/2002 | 10/03/2004 | Dissolved |
| Heater Tubes Ltd | 00922713 | 31/08/1991 | 30/06/2001 | Dissolved |
| Orbal Gas Burners Ltd | 01525831 | 31/08/1991 | 30/06/2001 | Dissolved |
| PITTS WILSON LIMITED | 03312519 | 18/10/2004 | 04/07/2005 | Silver |
| SIT CONTROLS (UK) LIMITED | 00076185 | 31/08/1991 | 30/06/2001 | Dissolved |
| TURBOTEC PRODUCTS LIMITED | 05593339 | 09/09/2008 | 03/12/2010 | Dissolved |
| VPG SYSTEMS UK LIMITED | 04348343 | 28/03/2002 | 19/04/2007 | Bronze |
| WHALE LIMITED | 02555679 | 29/11/2001 | 21/09/2005 | Dissolved |