| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| A E P Resources Ltd | 03403685 | 25/06/2002 | Dissolved |
| Csw Uk Finance Company | 03295701 | 29/07/2002 | Dissolved |
| Csw Uk Holdings | 03692218 | 29/07/2002 | Dissolved |
| Csw Uk Investments Ltd | 04120452 | 29/07/2002 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| KELDA EUROBOND CO LIMITED | 06433768 | 25/03/2010 | 13/07/2017 | Silver |
| SCOTTISHPOWER (SCPL) LIMITED | 02532240 | 15/11/2002 | 15/09/2003 | Gold |
| SCOTTISHPOWER (SOCL) LIMITED | 03681067 | 18/11/2002 | 15/09/2003 | Dissolved |
| YORKSHIRE WATER SERVICES LIMITED | 02366682 | 24/03/2010 | 31/03/2012 | Silver |