| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| AFON CREE HYDRO LTD | 10441150 | 24/10/2016 | One Red Flag |
| H2O POWER (MSC1) LTD | 11006281 | 10/10/2017 | One Red Flag |
| H2O POWER (MSC3) LTD | 11006408 | 10/10/2017 | Silver |
| H2O POWER GENERATION LTD | 09325462 | 03/02/2015 | Silver |
| H2O POWER TOWY LTD | 08536788 | 29/06/2015 | One Red Flag |
| HEAP BRIDGE HYDRO LTD | 11006301 | 10/10/2017 | Bronze |
| PHOENIX HYDRO LTD | 14684184 | 23/02/2023 | Amber |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| DUROR HYDRO LTD | 11006277 | 10/10/2017 | 20/01/2021 | Bronze |
| EASTHAM HYDRO LIMITED | 11006221 | 10/10/2017 | 20/01/2021 | One Red Flag |
| ELAN HYDRO LTD | 10033700 | 01/03/2016 | 21/05/2020 | One Red Flag |
| MERSEY HYDRO LTD | 11006202 | 10/10/2017 | 20/01/2021 | Bronze |
| MOUNT GRACE SCHOOL | 07695796 | 19/05/2014 | 18/05/2015 | Silver |
| NETHER DUTTON HYDRO LIMITED | 10105554 | 19/06/2018 | 20/01/2021 | Amber |
| RENFIN HYDRO 2 LTD | 11006245 | 10/10/2017 | 20/01/2021 | Silver |
| RENFIN HYDRO 3 LIMITED | 12796062 | 06/08/2020 | 01/03/2021 | Bronze |