| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| AMP HEAT RECOVERY LIMITED | 13112237 | 05/01/2021 | Dissolved |
| BEHIND THE METER LIMITED | 09210984 | 06/12/2016 | Dissolved |
| BUDD'S POWER LIMITED | 10833238 | 12/11/2020 | Dissolved |
| GSC 2 LIMITED | 10833377 | 12/11/2020 | Dissolved |
| MATHIESON BIOMASS LIMITED | 07804581 | 10/10/2011 | Dissolved |
| MATHIESON CAPITAL INVESTMENT MANAGEMENT LIMITED | 07244206 | 05/05/2010 | Amber |
| MATHIESON CAPITAL LLP | OC354763 | 07/05/2010 | Dissolved |
| MIDLANDS WOOD FUEL LIMITED | 04939045 | 08/08/2016 | Dissolved |
| STERIVERT LIMITED | 07304899 | 06/12/2016 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AGGREGATED MICRO POWER INFRASTRUCTURE 2 PLC | 10360953 | 31/07/2020 | 11/11/2022 | Amber |
| AGGREGATED MICRO POWER INFRASTRUCTURE LIMITED | 08865609 | 31/07/2020 | 11/11/2022 | Dissolved |
| AGGREGATED MICRO POWER LIMITED | 07361552 | 06/12/2016 | 11/11/2022 | Dissolved |
| AMP BIOMASS (NET ZERO 1) LIMITED | 13166453 | 29/01/2021 | 11/11/2022 | Not Trading |
| AMP BIOMASS (NET ZERO 2) LIMITED | 13166837 | 29/01/2021 | 11/11/2022 | Bronze |
| AMP BIOMASS FINCO LIMITED | 13731847 | 09/11/2021 | 11/11/2022 | Not Trading |
| AMP BIOMASS FUEL LTD | 05735950 | 30/03/2016 | 11/11/2022 | Bronze |
| AMP BIOMASS HOLDINGS LIMITED | 13726902 | 05/11/2021 | 11/11/2022 | One Red Flag |
| AMP CLEAN ENERGY LIMITED | 11399221 | 20/10/2020 | 11/11/2022 | Dissolved |
| AMP CLEAN ENERGY LIMITED | 11320925 | 29/10/2018 | 11/11/2022 | One Red Flag |
| AMP CLEAN ENERGY SERVICES HOLDINGS LIMITED | 07425592 | 30/03/2016 | 11/11/2022 | Silver |
| AMP CLEAN ENERGY SERVICES LIMITED | SC260419 | 28/06/2017 | 11/11/2022 | Bronze |
| AMP ENERGY SERVICES LIMITED | 07342849 | 06/12/2016 | 11/11/2022 | One Red Flag |
| AMP HEAT LIMITED | 07722340 | 31/07/2020 | 11/11/2022 | Amber |
| AMP SOLAR LIMITED | 11323197 | 01/01/2020 | 11/11/2022 | Not Trading |
| AMPIL 2 ASSET LIMITED | 10388500 | 31/07/2020 | 11/11/2022 | Amber |
| AMPIL TREASURYCO LIMITED | 09743951 | 31/07/2020 | 11/11/2022 | Bronze |
| ANGLIA BIOFUELS LIMITED | 09781898 | 30/03/2016 | 23/04/2019 | Dissolved |
| BATTERY BOX LIMITED | 14102358 | 12/05/2022 | 11/11/2022 | Not Trading |
| BILLINGTON BIOENERGY LIMITED | 09164604 | 31/10/2017 | 11/11/2022 | Dissolved |
| DALLOL BUNNAHABHAIN LIMITED | 13166060 | 24/03/2021 | 11/11/2022 | Bronze |
| ECCLES GRID STABILITY LIMITED | 11323302 | 01/01/2020 | 11/11/2022 | Not Trading |
| ENGLISH WOOD FUELS LIMITED | 06588903 | 30/03/2016 | 23/04/2019 | Dissolved |
| FOREST FUELS BOILER COMPANY LIMITED | 10693363 | 28/03/2017 | 11/11/2022 | One Red Flag |
| FREE IDEAL BIOMASS (STAGE 1) LIMITED | 08170258 | 31/07/2020 | 11/11/2022 | Not Trading |
| GOODSHAPE UK GROUP LIMITED | 09913341 | 19/02/2016 | 30/11/2020 | Amber |
| GVO BIOMASS LIMITED | 09098445 | 31/07/2020 | 11/11/2022 | One Red Flag |
| HIGHLAND WOOD ENERGY LIMITED | 07442170 | 06/12/2016 | 11/11/2022 | Dissolved |
| HULL RESERVE POWER LIMITED | 07882287 | 06/12/2016 | 30/03/2017 | Bronze |
| LAKES BIOMASS LIMITED | 08058008 | 30/03/2016 | 23/04/2019 | Dissolved |
| MOFFAT GRID STABILITY LIMITED | 11321826 | 01/01/2020 | 11/11/2022 | Dissolved |
| NORTH WEST WOOD FUELS LIMITED | 07420506 | 30/03/2016 | 23/04/2019 | Dissolved |
| PEL (FUEL) LIMITED | 10493363 | 19/12/2016 | 11/11/2022 | Dissolved |
| SALT END POWER LIMITED | 10700002 | 30/03/2017 | 23/03/2018 | One Red Flag |
| SG ROOFTOPS 1 LIMITED | 11766421 | 31/07/2020 | 14/08/2020 | One Red Flag |
| SILVAPOWER LIMITED | 05080165 | 30/03/2016 | 23/04/2019 | Dissolved |
| STOCK WAREHOUSE COMPANY LIMITED | 11387926 | 10/01/2020 | 11/11/2022 | Dissolved |
| URBAN RESERVE (ASSETCO) LIMITED | 11323479 | 31/07/2020 | 11/11/2022 | Bronze |
| URBAN RESERVE (ENGINECO) LIMITED | 13192016 | 10/02/2021 | 11/11/2022 | Not Trading |
| URBAN RESERVE FINCO LIMITED | 13727929 | 08/11/2021 | 11/11/2022 | Not Trading |
| URBAN RESERVE HOLDINGS LIMITED | 13725582 | 05/11/2021 | 11/11/2022 | Amber |
| URBAN RESERVE STORAGE LIMITED | 13068772 | 07/12/2020 | 11/11/2022 | Amber |