| Name | Company Number | Date Appointed | Rating |
|---|
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| 4DELIVERY LIMITED | 05322479 | 27/10/2010 | 09/11/2010 | Silver |
| AMEY METERING LIMITED | 03131192 | 27/03/2001 | 04/01/2005 | Bronze |
| BIRCHPOINT NO. 1 | 03455575 | 05/12/2007 | 12/05/2008 | Dissolved |
| BRIGHTON & HOVE 4DELIVERY LIMITED | 06732453 | 27/10/2010 | 09/11/2010 | Silver |
| CATCHMENT HIGHLAND HOLDINGS LIMITED | SC168790 | 29/08/2008 | 15/05/2009 | Amber |
| CATCHMENT HIGHLAND LIMITED | SC163036 | 29/08/2008 | 15/05/2009 | Amber |
| CATCHMENT LIMITED | SC163035 | 29/08/2008 | 15/05/2009 | Amber |
| CATCHMENT MORAY HOLDINGS LIMITED | SC206596 | 29/08/2008 | 15/05/2009 | Amber |
| CATCHMENT MORAY LIMITED | SC206595 | 29/08/2008 | 15/05/2009 | Amber |
| CATCHMENT TAY HOLDINGS LIMITED | SC186500 | 29/08/2008 | 15/05/2009 | Bronze |
| CATCHMENT TAY LIMITED | SC186492 | 29/08/2008 | 15/05/2009 | Silver |
| ELEAN POWER LIMITED | 02381529 | 22/07/1996 | 31/08/2002 | Dissolved |
| INFINIS (COE) LIMITED | 02203248 | 20/12/2000 | 31/10/2002 | Dissolved |
| INTERNATIONAL WATER U.U. (HIGHLAND) LIMITED | SC166789 | 07/11/2008 | 29/05/2009 | One Red Flag |
| NB GENERATION LIMITED | 02381753 | 14/09/1995 | 02/03/2005 | Dissolved |
| NORTH WEST WATER LIMITED | 03528619 | 14/04/1998 | 20/11/2000 | Not Trading |
| NORTHERN GAS NETWORKS OPERATIONS LIMITED | 03528783 | 14/04/1998 | 30/06/2006 | Bronze |
| NOVERA ENERGY GENERATION NO. 2 LIMITED | 02366593 | 20/12/2000 | 31/10/2002 | Amber |
| RENEWABLE POWER GENERATION LIMITED | 02803905 | 20/12/2000 | 31/10/2002 | Dissolved |
| RENO (HIGHLAND) LIMITED | 03131188 | 19/08/2008 | 15/05/2009 | Amber |
| RENO (MORAY) LIMITED | 04141423 | 19/08/2008 | 18/05/2009 | Amber |
| RENO (TAY) LIMITED | 03528593 | 19/08/2008 | 18/05/2009 | Silver |
| RESOURCE RECOVERY SOLUTIONS (DERBYSHIRE) HOLDINGS LIMITED | 06887587 | 24/09/2009 | 20/10/2010 | Dissolved |
| RESOURCE RECOVERY SOLUTIONS (DERBYSHIRE) LIMITED | 06835759 | 24/09/2009 | 20/10/2010 | Dissolved |
| SCOTTISH WATER SOLUTIONS LIMITED | SC233277 | 09/09/2003 | 21/12/2004 | Dissolved |
| SHANKS RRS LIMITED | 06585071 | 23/10/2008 | 22/10/2010 | Dissolved |
| SHANKS WASTE OPERATIONS LIMITED | 06585068 | 23/10/2008 | 22/10/2010 | Dissolved |
| SOUTH WALES POWER LIMITED | 02769106 | 20/12/2000 | 17/12/2004 | Dissolved |
| TRADEBE GWENT LIMITED | 00171493 | 22/12/2003 | 04/01/2005 | Gold |
| TRADEBE NORTH WEST LIMITED | 04423011 | 26/06/2003 | 31/12/2004 | Silver |
| TRADEBE NORTH WEST LIMITED | 04423011 | 26/06/2003 | 31/12/2004 | Silver |
| UNITED UTILITIES (EUROPE) LIMITED | 04731109 | 05/12/2007 | 12/05/2008 | Dissolved |
| UNITED UTILITIES (OVERSEAS HOLDINGS) LIMITED | 02536732 | 05/12/2007 | 12/05/2008 | Not Trading |
| UNITED UTILITIES ENERGY SERVICES LIMITED | 03315023 | 20/12/2000 | 13/08/2002 | Dissolved |
| UNITED UTILITIES INTERNATIONAL HOLDINGS LIMITED | 04617044 | 05/12/2007 | 12/05/2008 | Dissolved |
| UNITED UTILITIES INTERNATIONAL LIMITED | 02344587 | 23/05/2000 | 11/04/2007 | Gold |
| UNITED UTILITIES OPERATIONAL SERVICES LIMITED | 04184686 | 27/03/2001 | 04/01/2005 | Dissolved |
| UNITED UTILITIES PENSIONS TRUSTEE LIMITED | 03483025 | 13/03/2007 | 23/11/2010 | Not Trading |
| UNITED UTILITIES UTILITY SOLUTIONS (INDUSTRIAL) LIMITED | 04204293 | 30/05/2001 | 31/12/2004 | Silver |
| UNITED UTILITIES UTILITY SOLUTIONS LIMITED | 02268728 | 12/02/2001 | 30/12/2004 | Dissolved |
| UUGM LIMITED | 04696850 | 23/07/2003 | 24/04/2007 | Dissolved |