| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ARLJ REALISATIONS LIMITED | 03537390 | 10/06/2013 | Dissolved |
| CARBON WARRANTY SERVICES GUARANTEE COMPANY | 08540671 | 22/05/2013 | Dissolved |
| CARBON WARRANTY SERVICES LIMITED | 08522877 | 09/05/2013 | Dissolved |
| CREATIVE PRODUCTS (SOUTH WALES) LIMITED | 04459760 | 01/01/2006 | Dissolved |
| ENVIROWALL FUNDING LIMITED | 08840887 | 10/01/2014 | Dissolved |
| LA ROC BUILDING SOLUTIONS LIMITED | 06380167 | 24/09/2007 | Silver |
| PROCOST SOLUTIONS LTD | 03949215 | 16/03/2000 | Amber |
| ROOFING & CLADDING MATERIALS LIMITED | 05155573 | 01/05/2005 | Gold |
| SERS ENERGY SOLUTIONS GROUP LIMITED | 04946501 | 16/11/2012 | Bronze |
| SERS ENERGY SOLUTIONS HOLDINGS LIMITED | 08316332 | 03/12/2012 | Silver |
| SIMCRAFT LIMITED | 08561837 | 10/06/2013 | Dissolved |
| Sers (Midlands & Northern) Ltd | 04946503 | 29/10/2003 | Dissolved |
| Sps Protection Ltd | 04946516 | 29/10/2003 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| LA ROC BUILDING SOLUTIONS LIMITED | 06380167 | 24/09/2007 | 07/10/2022 | Silver |
| SERS (LONDON & SOUTH EAST) LIMITED | 04946513 | 29/10/2003 | 31/10/2006 | One Red Flag |
| SERS (SOLAR & RENEWABLE TECHNOLOGIES) WALES LIMITED | 04950670 | 03/11/2003 | 02/10/2009 | One Red Flag |
| SERS ENERGY SOLUTIONS GROUP LIMITED | 04946501 | 29/10/2003 | 31/10/2006 | Bronze |
| SERS ENERGY SOLUTIONS LIMITED | 02473034 | 01/01/2002 | 14/09/2006 | Silver |