| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Bangleflame Ltd | 06138636 | 26/03/2007 | Dissolved |
| Bladepark Ltd | 05419441 | 05/05/2005 | Dissolved |
| Bladeplace Ltd | 05419451 | 05/05/2005 | Dissolved |
| CARADON BIDCO 6 LIMITED | 04048935 | 31/08/2009 | Dissolved |
| CARADON BOILERS HOLDINGS LIMITED | 04048959 | 11/02/2004 | Dissolved |
| CARADON HEATING LIMITED | 01744824 | 31/08/2009 | Dissolved |
| CARADON PLUMBING LIMITED | 04049216 | 31/08/2009 | Dissolved |
| CARADON PLUMBING SOLUTIONS LIMITED | 04011010 | 31/08/2009 | Dissolved |
| CARADON RADIATORS HOLDINGS LIMITED | 03983137 | 11/02/2004 | Dissolved |
| CARADON STELRAD LIMITED | 04049017 | 31/08/2009 | Dissolved |
| IDEAL HEATING LIMITED | 04049211 | 31/08/2009 | Dissolved |
| IDEAL STELRAD GROUP LIMITED | 04049013 | 31/08/2009 | Dissolved |
| KESTON BOILERS SALES LIMITED | 04590889 | 31/07/2006 | Dissolved |
| KESTON HOLDINGS LIMITED | 00795957 | 31/07/2006 | Dissolved |
| NATURAL SUSTAINABLE ENERGY RESOURCES LIMITED | 04011009 | 31/08/2009 | Dissolved |
| STELRAD BATHROOM PRODUCTS LIMITED | 04049023 | 31/08/2009 | Dissolved |
| STELRAD GROUP LIMITED | 04049020 | 31/08/2009 | Dissolved |
| WOOLAMAI HOLDINGS (UK) LIMITED | 06953891 | 16/07/2009 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BANDWOOD LIMITED | 05420025 | 05/05/2005 | 06/01/2015 | Gold |
| Bangleflame Ltd | 06138636 | 26/03/2007 | 25/07/2007 | Dissolved |
| HENRAD (U.K.) LIMITED | 01857795 | 25/02/2004 | 22/11/2023 | Not Trading |
| IDEAL BOILERS LIMITED | 00322137 | 25/02/2004 | 06/01/2015 | Silver |
| IDEAL STELRAD LIMITED | 08582476 | 25/09/2013 | 06/01/2015 | Insolvent |
| IDEAL THERMASOL LIMITED | 06839817 | 19/08/2010 | 06/01/2015 | Dissolved |
| ISG BOILER HOLDINGS LIMITED | 04048962 | 25/02/2004 | 06/01/2015 | Gold |
| ISG HOLDINGS 1 LIMITED | 08582223 | 25/09/2013 | 08/01/2015 | Dissolved |
| ISG HOLDINGS 2 LIMITED | 08582275 | 25/09/2013 | 06/01/2015 | Dissolved |
| ISG HOLDINGS FINANCE LIMITED | 08582415 | 25/09/2013 | 06/01/2015 | Dissolved |
| KESTON BOILERS LIMITED | 03544589 | 31/07/2006 | 06/01/2015 | Gold |
| STELRAD LIMITED | 02263368 | 25/02/2004 | 22/11/2023 | Silver |
| STELRAD MANAGEMENT LIMITED | 04049093 | 11/02/2004 | 22/11/2023 | Silver |
| STELRAD RADIATOR GROUP LIMITED | 09206478 | 25/11/2014 | 22/11/2023 | Bronze |
| STELRAD RADIATOR HOLDINGS LIMITED | 03983125 | 25/02/2004 | 22/11/2023 | Silver |
| TERMO TEKNIK HOLDINGS LIMITED | 08675277 | 25/09/2013 | 22/11/2023 | Gold |
| WARMSURE LIMITED | 05769525 | 15/05/2006 | 31/08/2009 | Dissolved |
| WOOLAMAI GROUP UK LIMITED | 06953890 | 16/07/2009 | 22/11/2023 | Not Trading |