| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Heating & Management Services Ltd | 01998717 | 24/11/1993 | Dissolved |
| Millbrook Community Heating Ltd | 03800692 | 09/07/1999 | Dissolved |
| North Channel Energy Services Ltd | SC197767 | 09/07/1999 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BLOOMSBURY HEAT & POWER LIMITED | 03626472 | 28/10/1998 | 01/07/2009 | Silver |
| BRING ENERGY CONCESSIONS LIMITED | 02240219 | 24/11/1993 | 01/07/2009 | Amber |
| BRING ENERGY LIMITED | 01506399 | 24/11/1993 | 01/07/2009 | Amber |
| BRING ENERGY SERVICES LIMITED | 04513466 | 31/08/2002 | 01/07/2009 | Bronze |
| BUILDINGS AND FACILITIES MANAGEMENT LIMITED | 05333637 | 17/01/2005 | 19/09/2005 | Dissolved |
| CITIGEN (LONDON) LIMITED | 02427823 | 27/05/1993 | 08/03/1996 | Bronze |
| CITIGEN HOLDINGS LIMITED | 02805013 | 27/05/1993 | 08/03/1996 | Dissolved |
| GOWER STREET HEAT AND POWER LIMITED | 04070944 | 13/10/2000 | 01/07/2009 | Dissolved |
| INDUSTRIELLE DE CHAUFFAGE ENTERPRISE UNITED KINGDOM LIMITED | 03463584 | 11/11/1997 | 01/07/2009 | Dissolved |
| MONTAGU SQUARE ENGINEERING SERVICES LIMITED | 04103858 | 16/11/2000 | 24/05/2001 | Dissolved |
| SOUTHAMPTON GEOTHERMAL HEATING COMPANY LIMITED(THE) | 02053176 | 24/11/1993 | 01/07/2009 | Bronze |