| Name | Company Number | Date Appointed | Rating |
|---|
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BIRMINGHAM DISTRICT ENERGY COMPANY LIMITED | 05988953 | 30/04/2010 | 24/11/2010 | Bronze |
| BLOOMSBURY HEAT & POWER LIMITED | 03626472 | 30/04/2010 | 24/11/2010 | Silver |
| BRING ENERGY CONCESSIONS LIMITED | 02240219 | 30/04/2010 | 18/07/2013 | Amber |
| BRING ENERGY LIMITED | 01506399 | 30/04/2010 | 24/11/2010 | Amber |
| BRING ENERGY SERVICES LIMITED | 04513466 | 30/04/2010 | 24/11/2010 | Bronze |
| C3 RESOURCES LTD | 04938457 | 15/12/2015 | 31/01/2016 | Silver |
| COFELY UK HOLDING LIMITED | 07846121 | 18/07/2013 | 15/12/2014 | Dissolved |
| COLLEDGE TRUNDLE & HALL LIMITED | 03221816 | 12/12/2013 | 16/12/2014 | Silver |
| COVION HOLDINGS LIMITED | 05390293 | 12/12/2013 | 15/12/2014 | Dissolved |
| COVION LIMITED | 04075893 | 12/12/2013 | 15/12/2014 | Silver |
| EAST LONDON ENERGY LIMITED | 06307742 | 10/07/2007 | 01/05/2019 | Amber |
| ELYO FALCON LIMITED | 00575609 | 03/03/2005 | 08/07/2008 | Insolvent |
| ENGIE IMPACT UK LIMITED | 03820315 | 12/12/2013 | 16/12/2014 | Silver |
| ENGIE INTERNATIONAL FM LIMITED | 08420632 | 26/02/2013 | 30/09/2021 | One Red Flag |
| ENGIE RETAIL INVESTMENT UK LIMITED | 05804005 | 01/01/2016 | 10/01/2018 | Silver |
| ENGIE SUPPLY HOLDING UK LIMITED | 02706333 | 01/01/2016 | 01/05/2019 | Silver |
| EQUANS BUILDINGS LIMITED | 03810466 | 06/07/2014 | 01/05/2019 | One Red Flag |
| EQUANS ENERGY SERVICES UK LIMITED | 02665215 | 16/12/2014 | 10/01/2018 | Silver |
| EQUANS ENGINEERING SERVICES LIMITED | 02070305 | 08/05/2008 | 22/09/2011 | One Red Flag |
| EQUANS FM LIMITED | 00665702 | 08/07/2008 | 18/07/2013 | Silver |
| EQUANS GROUP UK LIMITED | 03151861 | 08/07/2008 | 01/05/2019 | Silver |
| EQUANS HOLDING UK LIMITED | 08155362 | 25/10/2013 | 01/05/2019 | Gold |
| EQUANS SERVICES LIMITED | 00598379 | 12/12/2013 | 01/05/2019 | Silver |
| EWP TECHNICAL SERVICES LIMITED | 04386323 | 12/12/2013 | 10/01/2018 | Insolvent |
| GOWER STREET HEAT AND POWER LIMITED | 04070944 | 30/04/2010 | 24/11/2010 | Dissolved |
| INDUSTRIAL ENERGY SERVICES LIMITED | 01732859 | 16/12/2014 | 10/01/2018 | Bronze |
| INDUSTRIELLE DE CHAUFFAGE ENTERPRISE UNITED KINGDOM LIMITED | 03463584 | 30/04/2010 | 24/11/2010 | Dissolved |
| NEW START VENTURES LIMITED | 05073203 | 12/12/2013 | 15/12/2014 | Dissolved |
| POWER EFFICIENCY HOLDINGS LIMITED | 06444915 | 12/12/2013 | 16/12/2014 | Silver |
| RM PROPERTY AND FACILITIES SOLUTIONS LIMITED | 04235613 | 22/01/2014 | 31/03/2016 | One Red Flag |
| ROMEC ENTERPRISES LIMITED | 07579351 | 22/01/2014 | 31/03/2016 | Dissolved |
| SOUTHAMPTON GEOTHERMAL HEATING COMPANY LIMITED(THE) | 02053176 | 30/04/2010 | 24/11/2010 | Bronze |