| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ALTRINCHAM REGENERATION LIMITED LIABILITY PARTNERSHIP | OC325410 | 18/01/2007 | Dissolved |
| ECO RENEWABLES LIMITED | 06026144 | 12/12/2006 | Amber |
| ECO2 ARANDA LIMITED | 06801449 | 26/01/2009 | Dissolved |
| ECO2 BIOMASS LIMITED | 06316681 | 18/07/2007 | Dissolved |
| ECO2 CANADA LIMITED | 14194409 | 24/06/2022 | Not Trading |
| ECO2 CENTRAL LIMITED | 06337776 | 08/10/2014 | Dissolved |
| ECO2 EASTERN LIMITED | 07419118 | 26/10/2010 | Dissolved |
| ECO2 ESPANA LIMITED | 06168728 | 19/03/2007 | One Red Flag |
| ECO2 LIMITED | 05268380 | 28/09/2005 | Amber |
| ECO2 LINCS CHP LIMITED | 06968305 | 21/07/2009 | Dissolved |
| ECO2 LINWOOD LIMITED | 09277632 | 23/10/2014 | Dissolved |
| ECO2 MARINE ENERGY LIMITED | 05676798 | 04/04/2006 | Bronze |
| ECO2 MEDINA LIMITED | 06801457 | 26/01/2009 | Dissolved |
| ECO2 NORTHERN LIMITED | 07784476 | 23/09/2011 | Dissolved |
| ECO2 RENEWABLES LIMITED | 07420414 | 27/10/2010 | Dissolved |
| ECO2 RIOJA LIMITED | 06801440 | 26/01/2009 | Gold |
| ECO2 ROMANIA LIMITED | 07065992 | 04/11/2009 | Dissolved |
| ECO2 SOUTHERN LIMITED | 07784517 | 23/09/2011 | Dissolved |
| ECO2 ST ALBANS LIMITED | 08660018 | 22/08/2013 | Dissolved |
| ECO2 TIDAL TECHNOLOGIES LIMITED | 10159486 | 03/05/2016 | Dissolved |
| ECO2 UK LIMITED | 08287155 | 08/11/2012 | Dissolved |
| ECO2 WESTERN LIMITED | 07784320 | 23/09/2011 | Dissolved |
| ECO2 WIND AND POWER (TEXAS) LTD | 15800664 | 24/06/2024 | Amber |
| ECONOMY CALLS LIMITED | 05154144 | 30/12/2004 | Dissolved |
| FOCHRIW RENEWABLE ENERGY LIMITED | 05914775 | 23/08/2006 | Dissolved |
| GLYNCORRWG RENEWABLE ENERGY LIMITED | 05921105 | 31/08/2006 | Dissolved |
| GREEN ECONOMY POWER LIMITED | 09597092 | 19/05/2015 | Dissolved |
| KINETICA 761 LIMITED | 09817731 | 09/10/2015 | Dissolved |
| KINETICA 769 LIMITED | 09280980 | 27/10/2014 | Dissolved |
| KINETICA 860 LIMITED | 09141918 | 22/07/2014 | Dissolved |
| KINETICA ENERGY (NORTHERN) LIMITED | SC417745 | 23/02/2012 | Dissolved |
| KINETICA ENERGY LIMITED | 07592456 | 26/08/2011 | Dissolved |
| KINETICA GENERATION LIMITED | 09151751 | 29/07/2014 | Dissolved |
| KINETICA SOLAR LIMITED | 09687770 | 15/07/2015 | Dissolved |
| KINETICA WIND LIMITED | 09354909 | 15/12/2014 | Dissolved |
| KW SOLAR LIMITED | 08305414 | 24/04/2013 | Dissolved |
| THE ESSENTIAL HR PARTNERSHIP LIMITED | 05709508 | 01/04/2009 | Dissolved |
| TIDAL ENERGY DEVELOPMENTS NORTH WALES LIMITED | 07837555 | 07/11/2011 | Dissolved |
| TIDAL ENERGY DEVELOPMENTS SOUTH WALES LIMITED | 07837618 | 07/11/2011 | Dissolved |
| TIDAL ENERGY LIMITED | 04135447 | 20/12/2007 | Insolvent |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BERWICK FARM POWER LIMITED | 05187928 | 04/04/2006 | 04/04/2008 | Dissolved |
| BOGANLEA RENEWABLE ENERGY LIMITED | 05919270 | 30/08/2006 | 10/01/2014 | Amber |
| BRIGG RENEWABLE POWER FUELS LIMITED | 06266322 | 01/09/2011 | 01/11/2013 | Silver |
| BRIGG RENEWABLE POWER LIMITED | 06337326 | 01/09/2011 | 01/11/2013 | Silver |
| CAMBRIAN RENEWABLE ENERGY LIMITED | 04803358 | 28/02/2005 | 02/06/2010 | Silver |
| CWE RTW LIMITED | 08903921 | 20/02/2014 | 04/10/2017 | Bronze |
| CWE V27 LIMITED | 09534606 | 09/04/2015 | 04/10/2017 | One Red Flag |
| CWE WTN LIMITED | 09103885 | 26/06/2014 | 04/10/2017 | Amber |
| ECO LFG LIMITED | 05733601 | 04/10/2006 | 04/04/2008 | Dissolved |
| ECO-5 LIMITED | 05342865 | 26/01/2005 | 02/03/2006 | Dissolved |
| ECO2 CAMBRIAN LIMITED | 05504383 | 28/09/2005 | 02/06/2010 | Dissolved |
| ECO2 CENTRAL LIMITED | 06337776 | 08/08/2007 | 12/04/2013 | Dissolved |
| ECO2 DEVELOPMENTS LIMITED | 08522957 | 09/05/2013 | 15/09/2015 | Dissolved |
| ECO2 HATTON LIMITED | 06256803 | 23/05/2007 | 07/10/2011 | Dissolved |
| ECO2 MANAGEMENT SERVICES LIMITED | 08522956 | 09/05/2013 | 21/07/2022 | Bronze |
| ECO2 PROJECTS LIMITED | 04549876 | 25/08/2004 | 02/03/2006 | Dissolved |
| ECO2 SOUTH WALES LIMITED | 08114024 | 21/06/2012 | 22/01/2015 | Dissolved |
| EPPAT ASSOCIATES LIMITED | 07224691 | 06/04/2011 | 06/04/2011 | Dissolved |
| EWC1 KINETICA LIMITED | 08962311 | 27/03/2014 | 26/01/2017 | Silver |
| FRAMPTON POWER LIMITED | 05504389 | 04/04/2006 | 04/04/2008 | Dissolved |
| GREP1 LIMITED | 06000706 | 16/11/2006 | 09/12/2011 | Bronze |
| HATTON WINDPOWER LIMITED | SC313899 | 24/04/2008 | 07/10/2011 | Insolvent |
| KINETICA 333 LIMITED | 09731828 | 13/08/2015 | 04/10/2017 | Dissolved |
| KINETICA 468 LIMITED | 09258805 | 10/10/2014 | 04/10/2017 | Dissolved |
| KINETICA 492 LIMITED | 09176100 | 14/08/2014 | 04/10/2017 | Dissolved |
| KINETICA 509 LIMITED | 09239384 | 29/09/2014 | 04/10/2017 | Dissolved |
| KINETICA 522 LIMITED | 08904083 | 20/02/2014 | 04/10/2017 | Dissolved |
| KINETICA 648 LIMITED | 09217710 | 15/09/2014 | 04/10/2017 | Dissolved |
| KINETICA 712 LIMITED | 09079178 | 10/06/2014 | 04/10/2017 | Dissolved |
| KINETICA 846 LIMITED | 09233633 | 24/09/2014 | 18/11/2015 | Amber |
| KINETICA 868 LIMITED | 09233669 | 24/09/2014 | 18/11/2015 | Amber |
| LINCOLNSHIRE BIOMASS LTD | 05908285 | 22/12/2006 | 09/12/2011 | One Red Flag |
| LYME AND WOOD POWER LIMITED | 05188440 | 04/04/2006 | 04/04/2008 | Dissolved |
| MARGAM GREEN ENERGY LIMITED | 08441850 | 05/09/2013 | 22/01/2015 | Bronze |
| PENTRE SOLAR LIMITED | 08488862 | 24/04/2013 | 24/04/2014 | Bronze |
| REDIMO LFG POWER LTD. | 04044216 | 25/07/2001 | 04/04/2008 | Dissolved |
| SNETTERTON RENEWABLE POWER FUELS LIMITED | 08653532 | 16/08/2013 | 21/11/2014 | Amber |
| SNETTERTON RENEWABLE POWER HOLDINGS LIMITED | 08484429 | 11/04/2013 | 21/11/2014 | One Red Flag |
| SNETTERTON RENEWABLE POWER LIMITED | 07227486 | 15/04/2013 | 21/11/2014 | Bronze |
| VIGO UTOPIA POWER LIMITED | 05504738 | 04/04/2006 | 04/04/2008 | Dissolved |