| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ALBA ENERGY LIMITED | SC184005 | 11/05/1998 | Bronze |
| ALLT NA MOINE HYDRO LIMITED | SC645429 | 06/12/2019 | One Red Flag |
| APPIN HYDRO LIMITED | SC519765 | 01/08/2016 | Silver |
| BRITISH HYDROPOWER ASSOCIATION LIMITED | 05689982 | 21/12/2020 | Gold |
| CRF HYDRO POWER LIMITED | SC359925 | 20/05/2009 | Bronze |
| FOSTER TURNER HYDRO LIMITED | SC648168 | 26/11/2019 | Bronze |
| GARBHAIG HYDRO POWER COMPANY LIMITED | SC095961 | 12/05/2010 | Silver |
| SCOTTISH HYDRO INVESTMENT LIMITED | SC583829 | 14/06/2021 | One Red Flag |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ARGYLL, LOMOND AND THE ISLANDS ENERGY AGENCY | SC211429 | 26/01/2007 | 02/09/2008 | Bronze |