| Name | Company Number | Date Appointed | Rating |
|---|
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ABERDEEN ENVIRONMENTAL SERVICES (HOLDINGS) LIMITED | SC206235 | 30/04/2012 | 03/03/2013 | Amber |
| ABERDEEN ENVIRONMENTAL SERVICES LIMITED | SC202555 | 30/04/2012 | 03/03/2013 | Amber |
| ALAUNA RENEWABLE ENERGY LIMITED | 07586543 | 30/04/2012 | 03/03/2013 | Bronze |
| ANCALA WATER SERVICES (DEFENCE) LIMITED | 04617059 | 30/04/2012 | 03/03/2013 | Silver |
| ANCALA WATER SERVICES (ESTATES) LIMITED | 04617130 | 30/04/2012 | 03/03/2013 | Bronze |
| BIOGEN EM OPCO LIMITED | 08356771 | 11/01/2013 | 03/03/2013 | One Red Flag |
| DALRIADA WATER HOLDINGS LIMITED | NI050160 | 30/04/2012 | 03/03/2013 | Not Trading |
| DALRIADA WATER LIMITED | NI050161 | 30/04/2012 | 03/03/2013 | One Red Flag |
| KELDA ENERGY SERVICES (OLD WHITTINGTON) LTD | 06690788 | 30/04/2012 | 03/03/2013 | Dissolved |
| KELDA ENERGY SERVICES LIMITED | 06690743 | 30/04/2012 | 03/03/2013 | Dissolved |
| KELDA WATER SERVICES (PROJECTS) LIMITED | 06690873 | 30/04/2012 | 03/03/2013 | Not Trading |
| KELDA WATER SERVICES (WALES) LIMITED | 05263649 | 30/04/2012 | 03/03/2013 | Dissolved |
| KELDA WATER SERVICES LIMITED | 02180706 | 01/01/2005 | 03/03/2013 | Gold |
| NORTHERN IRELAND WATER ALPHA LIMITED | NI050159 | 30/04/2012 | 03/03/2013 | One Red Flag |
| SCOTTISH WATER SERVICES (GRAMPIAN) LIMITED | SC206426 | 30/04/2012 | 03/03/2013 | Bronze |
| WELSH WATER ORGANIC ENERGY (CARDIFF) LTD | 08356859 | 11/01/2013 | 03/03/2013 | Amber |
| WELSH WATER ORGANIC ENERGY LTD | 08356949 | 11/01/2013 | 03/03/2013 | Bronze |
| YORKSHIRE WATER SERVICES LIMITED | 02366682 | 01/04/2001 | 03/03/2013 | Silver |