| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| KELDA ENERGY SERVICES (OLD WHITTINGTON) LTD | 06690788 | 01/03/2023 | Dissolved |
| KELDA EUROBOND CO LIMITED | 06433768 | 01/03/2023 | Silver |
| KELDA FINANCE (NO.1) LIMITED | 08066326 | 01/03/2023 | Silver |
| KELDA FINANCE (NO.2) LIMITED | 08072102 | 25/05/2023 | Silver |
| KELDA FINANCE (NO.3) PLC | 08270049 | 25/04/2023 | Silver |
| KELDA GROUP LIMITED | 02366627 | 01/03/2023 | Gold |
| KELDA NON-REG HOLDCO LIMITED | 06433788 | 01/03/2023 | Dissolved |
| KELDA WATER SERVICES LIMITED | 02180706 | 01/03/2023 | Gold |
| KEYLAND DEVELOPMENTS LIMITED | 02180728 | 01/03/2023 | Silver |
| LOOP CUSTOMER MANAGEMENT LIMITED | 03816217 | 01/03/2023 | Bronze |
| SALTAIRE WATER LIMITED | 06433802 | 01/03/2023 | Bronze |
| THREE SIXTY WATER (YORKSHIRE) LIMITED | 09921036 | 01/03/2023 | Gold |
| THREE SIXTY WATER LIMITED | 09919590 | 01/03/2023 | Amber |
| THREE SIXTY WATER SERVICES LIMITED | 05612103 | 01/03/2023 | Bronze |
| YORKSHIRE WATER FINANCE PLC | 11444372 | 01/03/2023 | Amber |
| YORKSHIRE WATER SERVICES FINANCE LIMITED | 04636719 | 01/03/2023 | Bronze |
| YORKSHIRE WATER SERVICES HOLDINGS LIMITED | 06815156 | 01/03/2023 | Gold |
| YORKSHIRE WATER SERVICES LIMITED | 02366682 | 01/03/2023 | Silver |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| PADLEY TRADING LTD | 02635560 | 14/05/2019 | 14/07/2023 | Silver |
| THE PADLEY GROUP | 02769300 | 09/11/2017 | 14/07/2023 | Amber |