| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| SORIS ACQUISITION LTD | 13729878 | 04/03/2022 | Silver |
| WATER DIRECT LIMITED | 03806395 | 04/03/2022 | Silver |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| DE NORA WATER TECHNOLOGIES LIMITED | 08089317 | 18/12/2014 | 02/07/2015 | One Red Flag |
| DE NORA WATER TECHNOLOGIES UK SERVICES LIMITED | 01254271 | 18/12/2014 | 02/07/2015 | Amber |
| ETWALL LAND LIMITED | 07559793 | 14/11/2016 | 01/07/2020 | Amber |
| MIDLANDS LAND PORTFOLIO LIMITED | 07559692 | 14/11/2016 | 01/07/2020 | Silver |
| SEVERN TRENT GREEN POWER (ARDLEY) LIMITED | 05807721 | 30/11/2018 | 01/07/2020 | Two Red Flags |
| SEVERN TRENT GREEN POWER (BRIDGEND) LIMITED | 09689123 | 30/11/2018 | 01/07/2020 | Silver |
| SEVERN TRENT GREEN POWER (CASSINGTON) LIMITED | 06551045 | 30/11/2018 | 01/07/2020 | Silver |
| SEVERN TRENT GREEN POWER (CW) LIMITED | 07982964 | 30/11/2018 | 01/07/2020 | One Red Flag |
| SEVERN TRENT GREEN POWER (HERTFORDSHIRE) LIMITED | 06771560 | 30/11/2018 | 01/07/2020 | Silver |
| SEVERN TRENT GREEN POWER (NORTH LONDON) LIMITED | 09689098 | 30/11/2018 | 01/07/2020 | Silver |
| SEVERN TRENT GREEN POWER (RBWM) LIMITED | 07326279 | 30/11/2018 | 01/07/2020 | One Red Flag |
| SEVERN TRENT GREEN POWER (WALLINGFORD) LIMITED | 07672850 | 30/11/2018 | 01/07/2020 | Silver |
| SEVERN TRENT GREEN POWER (WEST LONDON) LIMITED | 08308321 | 30/11/2018 | 01/07/2020 | Bronze |
| SEVERN TRENT GREEN POWER BIOGAS LIMITED | 06657846 | 30/11/2018 | 01/07/2020 | Amber |
| SEVERN TRENT GREEN POWER COMPOSTING LIMITED | 04927756 | 30/11/2018 | 01/07/2020 | Amber |
| SEVERN TRENT GREEN POWER GROUP LIMITED | 06968842 | 30/11/2018 | 01/07/2020 | Amber |
| SEVERN TRENT GREEN POWER HOLDINGS LIMITED | 09737422 | 30/11/2018 | 01/07/2020 | Bronze |
| SEVERN TRENT GREEN POWER LIMITED | 04501557 | 11/08/2015 | 01/07/2020 | Silver |
| SEVERN TRENT PLC | 02366619 | 02/10/2007 | 23/01/2015 | Silver |
| SEVERN TRENT SERVICES (WATER AND SEWERAGE) LIMITED | 08880470 | 18/12/2014 | 19/01/2016 | Silver |
| SEVERN TRENT WATER LIMITED | 02366686 | 02/10/2007 | 23/01/2015 | Silver |
| SEVERN TRENT WIND POWER LIMITED | 07742177 | 11/08/2015 | 01/07/2020 | Bronze |
| WATER PLUS GROUP LIMITED | 10012579 | 01/06/2016 | 29/07/2020 | Bronze |
| WATER PLUS LIMITED | 04141390 | 01/06/2016 | 29/07/2020 | Bronze |
| WATER PLUS SELECT LIMITED | 03511659 | 01/06/2016 | 29/07/2020 | Amber |