| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| CAIRNMILL LIMITED | SC200162 | 01/10/1999 | Dissolved |
| Little Kilmein Windfarm Ltd | SC225520 | 20/11/2001 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BLACKWATER ELECTRICITY LIMITED | NI039700 | 06/04/2005 | 24/05/2006 | Amber |
| KUDO ENERGY LIMITED | SC267933 | 14/05/2004 | 25/11/2011 | Not Trading |
| NATURAL POWER ASSET MANAGEMENT LIMITED | SC303181 | 31/05/2006 | 25/11/2011 | Not Trading |
| NATURAL POWER SERVICES LIMITED | SC235046 | 07/08/2002 | 25/11/2011 | Gold |
| OCEAN POD LIMITED | SC347935 | 05/01/2009 | 25/11/2011 | Dissolved |
| SEAPLANNER LIMITED | 06341612 | 15/07/2008 | 01/02/2012 | Bronze |
| SEAPLANNER LIMITED | 06341612 | 15/07/2008 | 24/11/2011 | Bronze |
| SEAROC CONSTRUCT LIMITED | 05291662 | 15/07/2008 | 24/11/2011 | Dissolved |
| SEAROC GROUP LIMITED | 06416555 | 15/07/2008 | 24/11/2011 | One Red Flag |
| SEAROC LTD | 04951754 | 15/07/2008 | 24/11/2011 | Not Trading |
| SEAROC MARINE LIMITED | 05940211 | 15/07/2008 | 24/11/2011 | Dissolved |
| THE NATURAL POWER CONSULTANTS LIMITED | SC177881 | 11/08/1997 | 25/11/2011 | Gold |
| WINDBORNE LIMITED | SC291836 | 10/01/2006 | 25/11/2011 | Not Trading |
| ZEPHIR LIMITED | SC317594 | 03/04/2007 | 25/11/2011 | Gold |
| ZX LIDARS LIMITED | SC350700 | 05/01/2009 | 25/11/2011 | Not Trading |
| ZX MEASUREMENT SERVICES LIMITED | SC291835 | 10/01/2006 | 25/11/2011 | Gold |