| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| E T C S (Management) Ltd | 03092153 | 15/05/1996 | Dissolved |
| E T C S (Uk) Ltd | 03129350 | 15/05/1996 | Dissolved |
| Energy Technical & Commercial Services Ltd | 03052383 | 15/05/1996 | Dissolved |
| Pipeco Gb Ltd | 03517237 | 14/08/1998 | Dissolved |
| SENTRI LTD | 03839120 | 02/10/1999 | Bronze |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| E T C S (Management) Ltd | 03092153 | 18/08/1995 | 26/03/1997 | Dissolved |
| E T C S (Uk) Ltd | 03129350 | 24/11/1995 | 26/03/1997 | Dissolved |
| ENERGY TECHNICAL & RENEWABLE SERVICES LIMITED | 06356521 | 30/08/2007 | 23/10/2007 | Gold |
| Energy Technical & Commercial Services Ltd | 03052383 | 23/05/1995 | 26/03/1997 | Dissolved |
| GREENPOWER (BROADMEADOWS) LIMITED | SC245114 | 27/07/2007 | 21/07/2010 | Dissolved |
| THE OFFSHORE TRANSMISSION COMPANY LIMITED | 06356530 | 30/08/2007 | 09/09/2024 | Not Trading |