| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Cytocare Limited | 02537866 | 07/09/1992 | Dissolved |
| Cytocare Limited | 02537866 | 07/09/1992 | Dissolved |
| Emit Engineering Limited | 02277614 | 11/08/1992 | Dissolved |
| Emit Engineering Limited | 02277614 | 11/08/1992 | Dissolved |
| Wessex Laboratories Limited | 02277602 | 11/08/1992 | Dissolved |
| Wessex Laboratories Limited | 02277602 | 11/08/1992 | Dissolved |
| Wessex Plumbing Services Limited | 02277513 | 07/09/1991 | Dissolved |
| Wessex Plumbing Services Limited | 02277513 | 07/09/1991 | Dissolved |
| Wessex Scientific Services Ltd | 02277593 | 11/08/1992 | Dissolved |
| Wessex Scientific Services Ltd | 02277593 | 11/08/1992 | Dissolved |
| Wessex Water Business Services Limited | 02372081 | 30/09/1992 | Dissolved |
| Wessex Water Corporation Plc | 02278664 | 07/09/1991 | Dissolved |
| Wessex Water Corporation Plc | 02278664 | 07/09/1991 | Dissolved |
| Wessex Water Group Plc | 02277800 | 07/09/1991 | Dissolved |
| Wessex Water Group Plc | 02277800 | 07/09/1991 | Dissolved |
| Wessex Water Holdings Plc | 02277811 | 07/09/1991 | Dissolved |
| Wessex Water Holdings Plc | 02277811 | 07/09/1991 | Dissolved |
| Wessex Water Operational Services Ltd | 02277817 | 30/09/1992 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| Aquator Ltd | 02304627 | 11/08/1992 | 01/03/1999 | Dissolved |
| Aquator Ltd | 02304627 | 11/08/1992 | 01/03/1999 | Dissolved |
| Aquator Services Ltd | 02277596 | 07/09/1991 | 01/03/1999 | Dissolved |
| Aquator Services Ltd | 02277596 | 07/09/1991 | 31/10/1995 | Dissolved |
| BRISTOL DIOCESAN BOARD OF FINANCE LIMITED(THE) | 00156243 | 01/01/2007 | 31/08/2009 | Gold |
| Bristol Avon Groundwork Trust | 02427529 | 28/09/1992 | 09/11/1993 | Dissolved |
| TURNBULL INFRASTRUCTURE & UTILITIES LIMITED | 03652435 | 20/10/1998 | 01/03/1999 | Silver |
| Uk Water International Ltd | 03074610 | 30/06/1995 | 01/03/1999 | Dissolved |
| Uk Water International Ltd | 03074610 | 30/06/1995 | 01/03/1999 | Dissolved |
| WATERAID | 01787329 | 20/09/2000 | 05/03/2003 | Silver |
| WATERAID TRADING LIMITED | 02362892 | 20/09/2000 | 05/03/2003 | One Red Flag |
| WESSEX LOGISTICS LIMITED | 02306465 | 07/09/1991 | 01/03/1999 | Dissolved |
| WESSEX LOGISTICS LIMITED | 02306465 | 07/09/1991 | 01/03/1999 | Dissolved |
| WESSEX PROPERTY SERVICES LIMITED | 02277590 | 11/08/1992 | 01/03/1999 | Dissolved |
| WESSEX SPRING WATER LIMITED | 02281033 | 07/09/1991 | 01/03/1999 | Dissolved |
| WESSEX SPRING WATER LIMITED | 02281033 | 07/09/1991 | 01/03/1999 | Dissolved |
| WESSEX WATER COMMERCIAL LIMITED | 02372795 | 30/09/1992 | 01/03/1999 | Dissolved |
| WESSEX WATER ENGINEERING SERVICES LIMITED | 02286860 | 07/09/1991 | 01/03/1999 | Dissolved |
| WESSEX WATER ENGINEERING SERVICES LIMITED | 02286860 | 07/09/1991 | 01/03/1999 | Dissolved |
| WESSEX WATER ENTERPRISES LIMITED | 02279151 | 07/09/1991 | 01/03/1999 | Bronze |
| WESSEX WATER ENTERPRISES LIMITED | 02279151 | 07/09/1991 | 31/10/1995 | Bronze |
| WESSEX WATER LIMITED | 02366633 | 01/10/1992 | 01/03/1999 | Amber |
| WESSEX WATER SERVICES LIMITED | 02366648 | 30/09/1992 | 23/10/1998 | Silver |
| WESSEX WATER TRUSTEE COMPANY LIMITED | 02278257 | 11/08/1992 | 01/03/1999 | Not Trading |
| WESSEX WATER TRUSTEE COMPANY LIMITED | 02278257 | 11/08/1992 | 01/03/1999 | Not Trading |
| WESTWICK CONSTRUCTION LIMITED | 02416353 | 07/09/1991 | 27/02/1997 | Dissolved |
| WESTWICK CONSTRUCTION LIMITED | 02416353 | 07/09/1991 | 27/02/1997 | Dissolved |
| Water Management International Ltd | 02933201 | 31/08/1995 | 01/03/1999 | Dissolved |
| Water Management International Ltd | 02933201 | 31/08/1995 | 01/03/1999 | Dissolved |
| YTL ENGINEERING LIMITED | 03696600 | 18/01/1999 | 01/03/1999 | Dissolved |
| YTL SERVICES LIMITED | 02277608 | 11/08/1992 | 01/03/1999 | Not Trading |
| YTL SERVICES LIMITED | 02277608 | 11/08/1992 | 01/03/1999 | Not Trading |