| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| BIDCO LIMITED | SC404654 | 03/08/2011 | Dissolved |
| Distributed Power Systems Ltd | 05660627 | 20/10/2006 | Dissolved |
| HELIUS ENERGY GAMMA LTD | 06690364 | 05/09/2008 | Dissolved |
| HELIUS ENERGY LIMITED | 05745512 | 09/06/2006 | Dissolved |
| HELIUS POWER LIMITED | 05499587 | 08/08/2005 | Dissolved |
| Helius Energy Beta Ltd | 06268530 | 04/06/2007 | Dissolved |
| Helius Greenfields Ltd | 06605677 | 29/05/2008 | Dissolved |
| Helius Greenswitch Ltd | 06605700 | 29/05/2008 | Dissolved |
| Helius Holdco 1 Ltd | 06605622 | 29/05/2008 | Dissolved |
| SOUTHAMPTON BIOMASS POWER LIMITED | 07321900 | 01/05/2015 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ASSOCIATION OF ELECTRICITY PRODUCERS LIMITED | 02779199 | 24/09/1997 | 02/11/2000 | Silver |
| Biomass Energy Ltd | SC160403 | 26/01/1996 | 20/05/2002 | Dissolved |
| Biomass Heating Investments Ltd | SC194722 | 30/03/2001 | 20/05/2002 | Dissolved |
| Biomass Processing Ltd | SC137351 | 06/04/1992 | 20/05/2002 | Dissolved |
| Border Biofuels (Charlesfield) Ltd. | SC152491 | 16/08/1994 | 20/05/2002 | Dissolved |
| British Biogen | 03126427 | 21/01/1998 | 17/10/2001 | Dissolved |
| Ecogen Kielder Biomass Ltd | 03328637 | 30/11/1998 | 20/05/2002 | Dissolved |
| Emisary Ltd | 03150758 | 07/12/1998 | 20/05/2002 | Dissolved |
| Environmental Tree Services Ltd | SC222211 | 03/09/2003 | 14/04/2005 | Dissolved |
| GOFIBRE HOLDINGS LIMITED | SC582522 | 21/02/2019 | 23/12/2021 | Amber |
| Incetec Ltd | 03150777 | 07/12/1998 | 20/05/2002 | Dissolved |
| MWF PROJECTS LIMITED | SC244270 | 16/04/2003 | 03/08/2004 | Dissolved |
| ROTHES CORDE LIMITED | SC360559 | 13/08/2009 | 25/11/2009 | Bronze |
| RWE STALLINGBOROUGH LIMITED | 06269884 | 05/06/2007 | 25/09/2008 | Dissolved |
| SCOTTISH RENEWABLES FORUM LIMITED | SC200074 | 20/04/2004 | 09/05/2006 | Silver |
| SGURRENERGY LIMITED | SC245814 | 01/03/2006 | 28/04/2008 | Amber |
| T. FLEMING HOMES LIMITED | SC098974 | 17/02/2010 | 01/06/2014 | Bronze |
| THE TREE WISE MEN LIMITED | SC239852 | 19/11/2002 | 21/09/2004 | Amber |
| TOPLING LTD | SC237281 | 12/03/2009 | 30/03/2016 | Silver |
| TOPLING LTD | SC237281 | 24/09/2002 | 30/03/2016 | Silver |
| The Electric Tree Co Ltd | SC152492 | 16/08/1994 | 20/05/2002 | Dissolved |
| Third Generation Ltd | SC152057 | 05/09/1994 | 20/05/2002 | Dissolved |
| Wood Power (Scotland) Ltd | SC161260 | 07/05/1996 | 20/05/2002 | Dissolved |