| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| GLOBAL OFFSHORE WIND HEALTH AND SAFETY ORGANISATION LIMITED | 12437121 | 25/05/2023 | Not Trading |
| RENEWABLE UK ASSOCIATION | 01874667 | 23/05/2017 | Bronze |
| SIEMENS GAMESA RENEWABLE ENERGY LIMITED | 10253129 | 08/07/2016 | Bronze |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ATOS IT SOLUTIONS AND SERVICES LIMITED | 01203466 | 28/11/2007 | 03/08/2011 | Not Trading |
| SIEMENS BENEFITS SCHEME LIMITED | 02543236 | 01/11/2001 | 30/06/2009 | Not Trading |
| SIEMENS BUSINESS SERVICES MEDIA LIMITED | 04042694 | 22/10/2007 | 24/07/2008 | Dissolved |
| SIEMENS ENERGY INDUSTRIAL TURBOMACHINERY LIMITED | 04729734 | 17/06/2005 | 01/10/2005 | Gold |
| SIEMENS GAMESA RENEWABLE ENERGY SERVICE LIMITED | SC253885 | 09/01/2020 | 29/04/2020 | Dissolved |
| SIEMENS POWER GENERATION LIMITED | 03332999 | 16/01/2002 | 31/10/2002 | Not Trading |
| Siemens Building Technologies Ltd | 01681983 | 08/11/2005 | 09/01/2006 | Dissolved |
| Siemens Building Technologies Security Products Ltd | 01856129 | 14/02/2006 | 08/11/2007 | Dissolved |
| Siemens Building Technologies Security Systems Ltd | 03110776 | 28/11/2005 | 01/10/2007 | Dissolved |
| Siemens Business Services Media Holdings Ltd | 04128934 | 22/10/2007 | 24/07/2008 | Dissolved |
| Siemens Business Services Media Technology Ltd | 04129105 | 22/10/2007 | 27/03/2008 | Dissolved |
| TECHUK LTD | 01200318 | 04/10/2007 | 11/07/2011 | Silver |
| TURBINE SERVICES LIMITED | 01536507 | 08/07/2003 | 23/01/2006 | Amber |
| Turbocare International Ltd | 05196206 | 12/08/2004 | 12/12/2005 | Dissolved |