| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ENERGY SYSTEMS CATAPULT LIMITED | 08705784 | 18/01/2023 | Amber |
| JUNO26 LIMITED | 09642832 | 17/06/2015 | Dissolved |
| MIND (THE NATIONAL ASSOCIATION FOR MENTAL HEALTH) | 00424348 | 01/12/2016 | Silver |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| SEVERN TRENT DATA PORTAL LIMITED | 08181048 | 31/01/2021 | 01/04/2023 | Bronze |
| SEVERN TRENT GREEN POWER (ANDIGESTION) LIMITED | 01847506 | 01/09/2023 | 30/09/2024 | Silver |
| SEVERN TRENT GREEN POWER (ARDLEY) LIMITED | 05807721 | 31/01/2021 | 30/09/2024 | One Red Flag |
| SEVERN TRENT GREEN POWER (BRIDGEND) LIMITED | 09689123 | 31/01/2021 | 30/09/2024 | Silver |
| SEVERN TRENT GREEN POWER (CASSINGTON) LIMITED | 06551045 | 31/01/2021 | 30/09/2024 | Silver |
| SEVERN TRENT GREEN POWER (CW) LIMITED | 07982964 | 31/01/2021 | 30/09/2024 | One Red Flag |
| SEVERN TRENT GREEN POWER (HERTFORDSHIRE) LIMITED | 06771560 | 31/01/2021 | 30/09/2024 | Bronze |
| SEVERN TRENT GREEN POWER (NORTH LONDON) LIMITED | 09689098 | 31/01/2021 | 30/09/2024 | Bronze |
| SEVERN TRENT GREEN POWER (RBWM) LIMITED | 07326279 | 31/01/2021 | 30/09/2024 | One Red Flag |
| SEVERN TRENT GREEN POWER (WALLINGFORD) LIMITED | 07672850 | 31/01/2021 | 30/09/2024 | Silver |
| SEVERN TRENT GREEN POWER (WEST LONDON) LIMITED | 08308321 | 31/01/2021 | 30/09/2024 | Amber |
| SEVERN TRENT GREEN POWER ATHERSTONE LIMITED | 12559241 | 26/06/2024 | 30/09/2024 | One Red Flag |
| SEVERN TRENT GREEN POWER BIOGAS LIMITED | 06657846 | 31/01/2021 | 30/09/2024 | Amber |
| SEVERN TRENT GREEN POWER CAYTON LIMITED | 11780059 | 26/06/2024 | 30/09/2024 | One Red Flag |
| SEVERN TRENT GREEN POWER COMPOSTING LIMITED | 04927756 | 31/01/2021 | 30/09/2024 | Amber |
| SEVERN TRENT GREEN POWER GROUP LIMITED | 06968842 | 31/01/2021 | 30/09/2024 | Amber |
| SEVERN TRENT GREEN POWER HOLDINGS LIMITED | 09737422 | 31/01/2021 | 30/09/2024 | Bronze |
| SEVERN TRENT GREEN POWER LIMITED | 04501557 | 31/01/2021 | 30/09/2024 | Silver |
| SEVERN TRENT GREEN POWER LODGE FARM LIMITED | 12558704 | 26/06/2024 | 30/09/2024 | One Red Flag |
| SEVERN TRENT SERVICES (WATER AND SEWERAGE) LIMITED | 08880470 | 31/01/2021 | 30/09/2024 | Silver |
| SEVERN TRENT SOLAR POWER LIMITED | 14513739 | 29/11/2022 | 30/09/2024 | Not Trading |
| SEVERN TRENT WIND POWER LIMITED | 07742177 | 31/01/2021 | 30/09/2024 | Bronze |