| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Angliatalks Ltd | 04366715 | 18/12/2003 | Dissolved |
| Birmingham & District Water Ltd | 03583080 | 24/02/2005 | Dissolved |
| Capital Water Ltd | 03583066 | 24/02/2005 | Dissolved |
| Cardiff Water Ltd | 03580827 | 24/02/2005 | Dissolved |
| Coventry Water Ltd | 03580839 | 24/02/2005 | Dissolved |
| Derby Water Ltd | 03580808 | 24/02/2005 | Dissolved |
| Exeter Water Ltd | 03580763 | 24/02/2005 | Dissolved |
| Gloucester Water Ltd | 03580796 | 24/02/2005 | Dissolved |
| Internettalks Ltd | 04366653 | 18/12/2003 | Dissolved |
| Leeds Water Ltd | 03580776 | 24/02/2005 | Dissolved |
| Leicester Water Ltd | 03580825 | 24/02/2005 | Dissolved |
| Manchester Water Ltd | 03580781 | 24/02/2005 | Dissolved |
| Mercia Water Ltd | 03580753 | 24/02/2005 | Dissolved |
| Midlands Water Ltd | 03580834 | 24/02/2005 | Dissolved |
| Northumbriantalks Ltd | 04366655 | 18/12/2003 | Dissolved |
| Norwich Water Ltd | 03580771 | 24/02/2005 | Dissolved |
| Nottingham Water Ltd | 03580816 | 24/02/2005 | Dissolved |
| Sheffield Water Ltd | 03585019 | 24/02/2005 | Dissolved |
| Stoke Water Ltd | 03580801 | 24/02/2005 | Dissolved |
| Surfonwater Ltd | 04367035 | 18/12/2003 | Dissolved |
| Talkonwater Ltd | 04367094 | 18/12/2003 | Dissolved |
| Tyne Tees Water Ltd | 03580739 | 24/02/2005 | Dissolved |
| Wolverhampton Water Ltd | 03580790 | 24/02/2005 | Dissolved |
| Worcester Water Ltd | 03580868 | 24/02/2005 | Dissolved |
| Yorkshiretalks Ltd | 04366648 | 18/12/2003 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| GUNTHORPE FIELDS LIMITED | 04240764 | 25/06/2001 | 31/05/2005 | Dissolved |
| PILLOW3 PRODUCTS LIMITED | 09923814 | 14/01/2016 | 01/01/2020 | Strike Off |
| SEVERN TRENT HOME SERVICES LIMITED | 02626955 | 22/08/2005 | 03/05/2006 | Dissolved |
| SEVERN TRENT RETAIL AND UTILITY SERVICES LIMITED | 02562471 | 28/03/2001 | 03/05/2006 | Amber |
| SEVERN TRENT UTILITY SERVICES LIMITED | 04125386 | 20/09/2005 | 03/05/2006 | Dissolved |
| SEVERN TRENT WATER LIMITED | 02366686 | 30/05/2000 | 03/05/2006 | Silver |
| ST DELTA LIMITED | 02409795 | 22/08/2005 | 03/05/2006 | Dissolved |
| Severn Trent Corporate Services Ltd | 04084452 | 15/02/2001 | 28/03/2001 | Dissolved |
| UKTALKS LIMITED | 03931190 | 12/01/2001 | 03/05/2006 | Dissolved |
| WATER PLUS SELECT LIMITED | 03511659 | 14/06/2005 | 27/01/2006 | Amber |