| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ALLT NA MOINE HYDRO LIMITED | SC645429 | 28/10/2019 | One Red Flag |
| APPIN HYDRO LIMITED | SC519765 | 11/12/2015 | Silver |
| CRF HYDRO POWER LIMITED | SC359925 | 20/05/2009 | Bronze |
| FOSTER TURNER HYDRO LIMITED | SC648168 | 26/11/2019 | One Red Flag |
| GARBHAIG HYDRO POWER COMPANY LIMITED | SC095961 | 12/05/2010 | Silver |
| GLEN RIGH HYDRO LIMITED | 09353824 | 12/10/2017 | Bronze |
| GREEN ENERGY TRADING LIMITED | 08840086 | 26/02/2018 | Bronze |
| GREENOCK HYDRO POWER LTD | SC584497 | 28/12/2017 | Amber |
| HYDRO ENERGY TRADING LIMITED | 09026478 | 26/02/2018 | Bronze |
| KIP WATER HYDRO LIMITED | SC502620 | 04/02/2019 | Not Trading |
| OUR POWER (CAIRNDOW) COMMUNITY INTEREST COMPANY | SC331067 | 18/09/2007 | Bronze |
| PPAYA LIMITED | SC682476 | 23/03/2021 | Bronze |
| RENEWABLE ENERGY TRANSMISSION LIMITED | SC735841 | 17/06/2022 | Not Trading |
| SCOTTISH HYDRO INVESTMENT LIMITED | SC583829 | 14/12/2017 | One Red Flag |
| THREE LOCHS HYDRO LIMITED | SC411929 | 16/12/2011 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AIMSIR LIMITED | 10890508 | 31/07/2017 | 12/07/2019 | Not Trading |