| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| AMAP CONSULTING LLP | OC374311 | 13/04/2012 | Bronze |
| CENERGIST LIMITED | 08191364 | 24/08/2012 | Bronze |
| ENERAQUA TECHNOLOGIES PLC | 13575021 | 19/08/2021 | Bronze |
| MATHEWSON LIMITED | 03619368 | 28/02/2025 | Silver |
| MATHEWSON UNDERFLOOR HEATING SOLUTIONS LIMITED | 12974087 | 28/02/2025 | Not Trading |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| 1ST INSULATION PARTNERS LIMITED | 02063449 | 15/11/2010 | 22/06/2011 | Insolvent |
| CARILLION HOME SERVICES LIMITED | 01686252 | 15/11/2010 | 22/06/2011 | Insolvent |
| CONTROL FLOW TECHNOLOGIES LIMITED | 12574912 | 28/04/2020 | 30/11/2021 | One Red Flag |
| E.J. HORROCKS LIMITED | 02023634 | 04/03/2011 | 22/06/2011 | Insolvent |
| ENERGY WATER SERVICES LTD | 13386101 | 11/05/2021 | 31/01/2022 | Not Trading |
| GEORGE HOWE LIMITED | 02836739 | 04/03/2011 | 22/06/2011 | Insolvent |
| GS DRILLTECH LTD | 13318538 | 07/04/2021 | 30/11/2021 | Dissolved |
| HUTTON GROVE LLP | OC436257 | 24/03/2021 | 24/03/2021 | Dissolved |
| LUXE LIGHTS LTD | 11565585 | 12/09/2018 | 30/11/2021 | Not Trading |
| WELLTHERM DRILLING LTD | 08307966 | 20/09/2021 | 01/02/2022 | One Red Flag |