| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| BALCAS SPV NO.2 LIMITED | SC450100 | 19/01/2024 | Silver |
| BOXED ESCO SERVICES LIMITED | 09178335 | 19/01/2024 | Amber |
| ENERGY ON CLYDE LIMITED | SC826616 | 22/10/2024 | Amber |
| FORTUM GLASGOW LIMITED | 10359853 | 21/05/2024 | Bronze |
| GG ECO ENERGY LIMITED | 08561136 | 11/08/2023 | One Red Flag |
| GREN BIOMASS (NORFOLK) LTD | 08838364 | 08/08/2023 | Amber |
| GREN CHP (NOTTINGHAM) LIMITED | 09652769 | 05/08/2023 | Bronze |
| GREN CHP (SHEFF) LIMITED | 09360758 | 19/01/2024 | Amber |
| GREN ENERGY LIMITED | 14745562 | 16/07/2024 | Silver |
| GREN RETROFIT (LIGHTNING) LIMITED | 09504784 | 11/08/2023 | Insolvent |
| GREN WTE (BADDESLEY) LIMITED | 10633605 | 31/07/2023 | One Red Flag |
| IGNIS BIOMASS 2 LIMITED | 08196796 | 07/08/2023 | Insolvent |
| IGNIS BIOMASS 3 LIMITED | 08196664 | 07/08/2023 | Insolvent |
| IGNIS BIOMASS 4 LIMITED | 08196819 | 07/08/2023 | Insolvent |
| IGNIS BIOMASS LIMITED | 07465305 | 07/08/2023 | One Red Flag |
| IGNIS WICK LIMITED | 07469188 | 07/08/2023 | One Red Flag |
| ROUNDWOOD ENERGY LIMITED | 08334802 | 11/08/2023 | One Red Flag |
| SOUTH CLYDE ENERGY RECOVERY HOLDINGS LIMITED | 13470235 | 21/05/2024 | Bronze |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BRISTOL HEAT NETWORKS LIMITED | 11652156 | 04/01/2023 | 17/05/2023 | Amber |
| MIDLOTHIAN ENERGY LIMITED | SC678840 | 29/03/2023 | 17/05/2023 | Silver |
| VATTENFALL BRENT CROSS LIMITED | 12504538 | 03/06/2021 | 17/05/2023 | One Red Flag |
| VATTENFALL HEAT UK LIMITED | 02951085 | 09/01/2023 | 17/05/2023 | Amber |