| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| B9 ENERGY LIMITED | NI035442 | 04/08/1999 | Amber |
| B9 TIDAL ENERGY LTD | NI607991 | 23/06/2011 | Dissolved |
| FIRST FLIGHT WIND LIMITED | NI611390 | 05/10/2012 | Dissolved |
| MARINE ENERGY PARTNERS LIMITED | 07691193 | 15/07/2011 | Dissolved |
| MEENACAHAN LIMITED | NI030285 | 19/12/1995 | Silver |
| MEENACAHAN LIMITED | NI030285 | 19/12/1995 | Silver |
| NI MARINE ENERGY LIMITED | NI609524 | 17/10/2011 | Dissolved |
| THETIS ENERGY LIMITED | NI070021 | 11/06/2010 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| A.L. & P.D. LIMITED | 00495949 | 16/09/1991 | 15/01/2016 | Dissolved |
| ALTAHULLION WIND FARM LIMITED | NI043481 | 26/08/2003 | 10/03/2005 | Silver |
| ARDNALEA HOUSE APARTMENTS LIMITED | NI034264 | 29/05/1998 | 08/06/2011 | Not Trading |
| B9 ENERGY DEVELOPMENT LTD | NI041400 | 02/04/2003 | 13/11/2019 | Amber |
| CALLAGHEEN WIND FARM LIMITED | NI050555 | 08/09/2004 | 31/10/2005 | Dissolved |
| EXUS ENERGY LIMITED | NI029164 | 28/02/1998 | 20/02/2003 | Dissolved |
| HOLYWOOD TRANSITION TOWN LIMITED | NI073681 | 07/09/2009 | 02/02/2012 | Silver |
| LENDRUM'S BRIDGE (HOLDINGS) LIMITED | NI037835 | 14/02/2000 | 10/03/2005 | Not Trading |
| LENDRUM'S BRIDGE WIND FARM NO.2 LIMITED | NI042849 | 20/06/2003 | 10/03/2005 | Dissolved |
| RENEWABLE ENERGY SYSTEMS (NORTHERN IRELAND) LIMITED | NI026799 | 13/08/1992 | 19/05/2006 | Silver |
| RES-B9 (NI OFFSHORE WIND) LIMITED | NI612289 | 19/04/2012 | 06/03/2017 | Dissolved |
| SIEMENS GAMESA RENEWABLE ENERGY B9 LIMITED | NI028387 | 18/04/1994 | 01/10/2004 | Dissolved |
| WIND FARM DEVELOPMENTS LIMITED | NI036725 | 17/08/1999 | 28/03/2008 | Dissolved |