| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Air Control Services Ltd | 05826972 | 24/05/2006 | Dissolved |
| TRANSPIPE LIMITED | 03398019 | 03/07/1997 | Dissolved |
| West One Engineering Limited | 02754001 | 15/10/1992 | Dissolved |
| West One Engineering Limited | 02754001 | 15/10/1992 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ADVANCED COMPRESSOR ENGINEERING (CONTRACTS) LTD. | 04475871 | 02/07/2002 | 30/03/2015 | Dissolved |
| AIR-VANE COMPRESSORS LIMITED | 03210317 | 23/03/2010 | 30/03/2015 | Dissolved |
| COOL & HEAT (HOLDINGS) LIMITED | 03159517 | 15/02/1996 | 01/04/2015 | Insolvent |
| COOL & HEAT HOLDINGS LIMITED | 07955053 | 11/09/2013 | 30/03/2015 | Dissolved |
| COOL & HEAT LTD | 04665531 | 11/09/2013 | 01/04/2015 | One Red Flag |
| EXCEL COMPRESSOR ENGINEERING LTD | 03357448 | 01/08/2014 | 01/04/2015 | Dissolved |