| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| 39MANSIONHOUSE LIMITED | SC293024 | 11/03/2022 | Gold |
| CRUISE ORKNEY C.I.C. | SC373808 | 26/02/2010 | Dissolved |
| MISBISTER LIMITED | SC518890 | 28/10/2015 | Gold |
| ORBITAL SHAREHOLDING LTD | SC400455 | 28/05/2012 | Silver |
| ORCADES MARINE MANAGEMENT CONSULTANTS LTD | SC385696 | 21/09/2010 | Bronze |
| ORKNEY ENERGY GATEWAY (BUILDING) LIMITED | SC380752 | 21/06/2010 | Dissolved |
| ORKNEY MARINAS LIMITED | SC215601 | 06/05/2024 | Gold |
| WESTRAY WIND POWER LIMITED | SC375464 | 05/04/2010 | Gold |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AQUATERA LIMITED | SC206441 | 25/01/2011 | 28/11/2022 | One Red Flag |
| FLOTTA WIND POWER LTD | SC275624 | 01/12/2009 | 22/04/2022 | Silver |
| HATSTON WIND POWER LTD | SC380753 | 21/06/2010 | 22/04/2022 | Bronze |
| HOY ENERGY LIMITED | SC365871 | 21/04/2011 | 17/03/2021 | One Red Flag |
| ORBITAL SHAREHOLDING LTD | SC400455 | 27/05/2011 | 27/05/2012 | Silver |
| SOIRBHEAS | SC356487 | 08/09/2010 | 18/10/2012 | Silver |
| SOIRBHEAS TRADING LTD | SC366939 | 08/09/2010 | 18/10/2012 | Amber |
| THE ISLAND OF HOY DEVELOPMENT TRUST | SC306586 | 11/01/2012 | 17/03/2021 | Silver |