| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ELEAN POWER LIMITED | 02381529 | 30/09/2010 | Dissolved |
| NORTHERN HYDRO LIMITED | 02503927 | 30/09/2010 | Dissolved |
| UNITED UTILITIES US INVESTMENTS LIMITED | 02380134 | 30/09/2010 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| NB GENERATION LIMITED | 02381753 | 30/09/2010 | 31/10/2011 | Dissolved |
| NB POWER SERVICES (NO.1) LIMITED | 02380229 | 30/09/2010 | 31/10/2011 | Dissolved |
| NORTH WEST WATER LLC | FC027719 | 21/05/2010 | 31/10/2011 | Dissolved |
| UNITED UTILITIES (ISLE OF MAN) NUMBER 1 LIMITED | FC026752 | 08/10/2010 | 31/10/2011 | Dissolved |
| UNITED UTILITIES (ISLE OF MAN) NUMBER 2 LIMITED | FC027810 | 08/10/2010 | 31/10/2011 | Dissolved |
| UNITED UTILITIES (JERSEY) INVESTMENTS NO. 1 UNLIMITED | FC028781 | 21/05/2010 | 31/10/2011 | Dissolved |
| UNITED UTILITIES (JERSEY) INVESTMENTS NO. 2 UNLIMITED | FC028782 | 21/05/2010 | 31/10/2011 | Dissolved |
| UNITED UTILITIES (JERSEY) INVESTMENTS NO. 3 UNLIMITED | FC028783 | 21/05/2010 | 31/10/2011 | Dissolved |
| UNITED UTILITIES (JERSEY) INVESTMENTS NO. 4 UNLIMITED | FC028780 | 21/05/2010 | 31/10/2011 | Dissolved |
| UNITED UTILITIES (JERSEY) LIMITED | FC028976 | 21/05/2010 | 31/10/2011 | Dissolved |
| UNITED UTILITIES FINANCE HOLDINGS LIMITED | 03203278 | 24/09/2010 | 31/10/2011 | Dissolved |
| UNITED UTILITIES FINANCIAL INVESTMENTS LIMITED | 05388379 | 21/05/2010 | 31/10/2011 | Dissolved |
| UNITED UTILITIES FINANCIAL SERVICES NO. 1 | 05070427 | 30/09/2010 | 31/10/2011 | Dissolved |
| UNITED UTILITIES INVESTMENTS (NO. 4) | 05764896 | 21/05/2010 | 31/10/2011 | Dissolved |
| UNITED UTILITIES INVESTMENTS (NO.1) LIMITED | 05540492 | 21/05/2010 | 31/10/2011 | Dissolved |
| UNITED UTILITIES INVESTMENTS (NO.2) LIMITED | 02683062 | 21/05/2010 | 31/10/2011 | Dissolved |
| UNITED UTILITIES INVESTMENTS (NO.3) | 05657346 | 21/05/2010 | 31/10/2011 | Dissolved |
| UNITED UTILITIES INVESTMENTS (NO.5) LIMITED | 07525562 | 15/02/2011 | 31/10/2011 | Dissolved |
| UNITED UTILITIES INVESTMENTS (NO.6) LIMITED | 07525586 | 15/02/2011 | 31/10/2011 | Dissolved |
| UNITED UTILITIES INVESTMENTS (NO.7) LIMITED | 07525592 | 15/02/2011 | 31/10/2011 | Dissolved |
| UNITED UTILITIES INVESTMENTS B.V. | FC028987 | 21/05/2010 | 31/10/2011 | Dissolved |
| UNITED UTILITIES INVESTMENTS HOLDINGS LTD. | 05494798 | 21/05/2010 | 31/10/2011 | Dissolved |
| UNITED UTILITIES NORTH WEST LIMITED | 04146378 | 15/05/2009 | 01/10/2011 | Gold |
| UNITED UTILITIES ONE LIMITED | 03308286 | 21/05/2010 | 31/10/2011 | Dissolved |
| UNITED UTILITIES PLC | 02366616 | 21/05/2010 | 31/10/2011 | Bronze |
| UNITED UTILITIES WATER LEASING LIMITED | 06493296 | 15/05/2009 | 31/10/2011 | Dissolved |
| UNITED UTILITIES WATER LIMITED | 02366678 | 15/07/2009 | 30/03/2011 | Silver |
| WATER PLUS LIMITED | 04141390 | 15/05/2009 | 31/10/2011 | Bronze |
| YCL TRANSPORT LIMITED | 03842309 | 21/05/2010 | 31/10/2011 | Not Trading |