| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Advanced Colouring Systems Limited | 02018000 | 29/04/1997 | Dissolved |
| C.W.Brown (Engineers) Ltd | 03425108 | 15/06/1999 | Dissolved |
| CARVER GROUP LIMITED | 00509127 | 03/02/1992 | Silver |
| Carver Properties Ltd | 00261911 | 21/01/2004 | Dissolved |
| MMS LIMITED | 00421099 | 15/10/2001 | Dissolved |
| Zig Electronics Ltd | 00858689 | 30/03/1994 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| 02821305 LIMITED | 02821305 | 26/01/1994 | 13/12/2003 | Dissolved |
| A T Appliance Test House Ltd | 00113544 | 30/06/1998 | 16/09/1999 | Dissolved |
| BIDDLE AIR CURTAINS LIMITED | 01532992 | 15/10/2001 | 01/05/2012 | Not Trading |
| BIDDLE LIMITED | 00553075 | 15/10/2001 | 01/05/2012 | Not Trading |
| CARVER & CO (ENGINEERS) LIMITED | 02985677 | 31/01/1995 | 01/05/2012 | Amber |
| CARVER CLIMATE SYSTEMS LIMITED | 01986549 | 11/10/2001 | 01/05/2012 | Silver |
| CARVER INTERNATIONAL LIMITED | 00388866 | 15/10/2001 | 01/05/2012 | Silver |
| COOL-THERM (CONSULTANTS) LIMITED | 08678949 | 31/08/2018 | 01/04/2019 | Not Trading |
| COOL-THERM (GROUP) LIMITED | 09987978 | 31/08/2018 | 01/04/2019 | Bronze |
| COOL-THERM (HOLDINGS) LIMITED | 06774658 | 31/08/2018 | 01/04/2019 | Not Trading |
| COOL-THERM (SOUTH EAST) LIMITED | 11240055 | 31/08/2018 | 01/04/2019 | Not Trading |
| COOL-THERM (SOUTH WEST) LIMITED | 11240253 | 31/08/2018 | 30/01/2020 | Not Trading |
| COOL-THERM (UK) LIMITED | 02755818 | 31/08/2018 | 01/04/2019 | One Red Flag |
| COOL-THERM (WALES) LIMITED | 06774999 | 31/08/2018 | 01/04/2019 | Not Trading |
| GEOCLIMA (UK) LIMITED | 07808902 | 31/08/2018 | 01/04/2019 | Not Trading |
| Grate Glow Fires Ltd | 01210900 | 01/05/1995 | 10/10/2006 | Dissolved |
| Grate Glow Ltd | 05868990 | 06/07/2006 | 10/10/2006 | Dissolved |
| IMPERIAL FIRES LIMITED | 02956624 | 25/08/1994 | 01/05/2012 | Not Trading |
| JOSEPH CARVER LIMITED | 02985679 | 31/01/1995 | 01/05/2012 | Not Trading |
| Linquartz Ltd | 02880555 | 01/07/1994 | 10/10/2006 | Dissolved |
| OLTON GOLF CLUB,LIMITED(THE) | 00079014 | 27/04/2009 | 07/02/2011 | Silver |
| ROBINSON WILLEY LIMITED | 00245145 | 26/06/1992 | 10/10/2006 | One Red Flag |
| THERMOSCREENS LIMITED | 00691333 | 15/06/1999 | 01/05/2012 | Amber |
| TURBOMISER LIMITED | 07306550 | 31/08/2018 | 01/04/2019 | Not Trading |
| WIDNEY LEISURE LIMITED | 02558737 | 25/08/1994 | 01/05/2012 | Amber |