| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| MARINE FARMS LIMITED | SC559298 | 02/03/2017 | Dissolved |
| ORBITAL SHAREHOLDING LTD | SC400455 | 27/05/2011 | Silver |
| ORKNEY ELECTRIC VEHICLES LTD | SC644848 | 18/10/2019 | Dissolved |
| ORKNEY ENERGY GATEWAY (BUILDING) LIMITED | SC380752 | 21/06/2010 | Dissolved |
| ORKNEY ENERGY GATEWAY LIMITED | SC355460 | 23/02/2009 | Dissolved |
| ORKNEY MARINE FARMS LIMITED | SC557894 | 16/02/2017 | Dissolved |
| SCOTRENEWABLES LIMITED | SC240352 | 10/02/2004 | Dissolved |
| Scotwave Ltd. | SC217173 | 22/03/2001 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| FLOTTA WIND POWER LTD | SC275624 | 05/11/2004 | 22/04/2022 | Silver |
| HATSTON WIND POWER LTD | SC380753 | 21/06/2010 | 22/04/2022 | Bronze |
| HIGHLAND TIGER LIMITED | SC561689 | 28/03/2017 | 22/04/2022 | Silver |
| K.G.D. LTD. | 04307128 | 29/10/2001 | 16/01/2002 | Dissolved |
| ORBITAL MARINE POWER LIMITED | SC235066 | 23/09/2002 | 15/03/2018 | One Red Flag |
| ORKNEY RENEWABLE ENERGY FORUM | SC287437 | 17/04/2006 | 16/04/2007 | Gold |
| ORKNEY RENEWABLE REALITIES GROUP | SC258842 | 06/11/2003 | 28/02/2007 | Amber |
| ORKNEY RENEWABLE REALITIES GROUP | SC258842 | 06/11/2003 | 31/12/2006 | Amber |
| ORKNEY WIND POWER LTD. | SC226948 | 25/01/2002 | 01/09/2014 | Bronze |
| ORKNEY WIND POWER LTD. | SC226948 | 25/01/2002 | 22/04/2022 | Bronze |
| RENNIBISTER WIND POWER II LTD | SC619501 | 29/01/2019 | 22/04/2022 | One Red Flag |
| RENNIBISTER WIND POWER LTD. | SC410498 | 02/11/2011 | 22/04/2022 | Silver |
| RENNIBISTER WIND POWER T2 LTD | SC496886 | 04/02/2015 | 22/04/2022 | Dissolved |
| WESTRAY WIND POWER LIMITED | SC375464 | 24/08/2010 | 02/03/2011 | Gold |