| 主任 | HOWLETT ASSOCIATES WATER TREATMENT LIMITED | 🇬🇧United Kingdom | 活躍 | 19/12/2025 – 17/02/2026 |
| 主任 | REIGATE ENVIRONMENTAL SERVICES LIMITED | 🇬🇧United Kingdom | 活躍 | 30/03/2026 – 17/02/2026 |
| 主任 | SEVERN TRENT RETAIL AND UTILITY SERVICES LIMITED | 🇬🇧United Kingdom | 活躍 | 30/03/2026 – 17/02/2026 |
| 主任 | SEVERN TRENT SOLAR FINANCE LIMITED | 🇬🇧United Kingdom | 活躍 | 17/03/2026 – 出席 |
| 主任 | SEVERN TRENT SOLAR HOLDINGS LIMITED | 🇬🇧United Kingdom | 活躍 | 18/03/2026 – 出席 |
| 主任 | SEVERN TRENT GREEN POWER CAYTON LIMITED | 🇬🇧United Kingdom | 活躍 | 13/04/2026 – 出席 |
| 主任 | SEVERN TRENT GREEN POWER ATHERSTONE LIMITED | 🇬🇧United Kingdom | 活躍 | 07/04/2026 – 出席 |
| 主任 | SEVERN TRENT GREEN POWER LODGE FARM LIMITED | 🇬🇧United Kingdom | 活躍 | 07/04/2026 – 出席 |
| 主任 | SEVERN TRENT GREEN POWER (ANDIGESTION) LIMITED | 🇬🇧United Kingdom | 活躍 | 04/04/2026 – 17/02/2026 |
| 主任 | SEVERN TRENT PROPERTY SOLUTIONS LIMITED | 🇬🇧United Kingdom | 活躍 | 08/01/2026 – 17/02/2026 |
| 主任 | SEVERN TRENT WWIF LIMITED | 🇬🇧United Kingdom | 解散 | 11/04/2026 – 出席 |
| 主任 | EAST WORCESTER WATER LIMITED | 🇬🇧United Kingdom | 活躍 | 22/01/2026 – 出席 |
| 主任 | SEVERN TRENT CARSINGTON LIMITED | 🇬🇧United Kingdom | 活躍 | 01/04/2026 – 出席 |
| 主任 | SEVERN TRENT METERING SERVICES LIMITED | 🇬🇧United Kingdom | 活躍 | 16/04/2026 – 出席 |
| 主任 | SEVERN TRENT SERVICES HOLDINGS LIMITED | 🇬🇧United Kingdom | 活躍 | 01/04/2026 – 出席 |
| 主任 | SEVERN TRENT SERVICES INTERNATIONAL LIMITED | 🇬🇧United Kingdom | 活躍 | 01/04/2026 – 出席 |
| 主任 | INDUSTRIAL WATER JETTING SYSTEMS HOLDINGS LIMITED | 🇬🇧United Kingdom | 活躍 | 09/01/2026 – 17/02/2026 |
| 主任 | SEVERN TRENT SERVICES INTERNATIONAL (OVERSEAS HOLDINGS) LIMITED | 🇬🇧United Kingdom | 活躍 | 30/03/2026 – 17/02/2026 |
| 主任 | SEVERN TRENT OVERSEAS HOLDINGS LIMITED | 🇬🇧United Kingdom | 活躍 | 01/04/2026 – 出席 |
| 主任 | SEVERN TRENT (W&S) LIMITED | 🇬🇧United Kingdom | 活躍 | 11/03/2026 – 17/02/2026 |
| 主任 | SEVERN TRENT SERVICES DEFENCE LIMITED | 🇬🇧United Kingdom | 活躍 | 30/03/2026 – 17/02/2026 |
| 主任 | SEVERN TRENT SERVICES DEFENCE HOLDINGS LIMITED | 🇬🇧United Kingdom | 活躍 | 30/03/2026 – 17/02/2026 |
| 主任 | SEVERN TRENT SERVICES OPERATIONS UK LIMITED | 🇬🇧United Kingdom | 活躍 | 03/03/2026 – 17/02/2026 |
| 主任 | SEVERN TRENT GREEN POWER (CW) LIMITED | 🇬🇧United Kingdom | 活躍 | 08/04/2026 – 17/02/2026 |
| 主任 | SEVERN TRENT GREEN POWER (WALLINGFORD) LIMITED | 🇬🇧United Kingdom | 活躍 | 12/04/2026 – 出席 |
| 主任 | SEVERN TRENT GREEN POWER (RBWM) LIMITED | 🇬🇧United Kingdom | 活躍 | 12/04/2026 – 出席 |
| 主任 | SEVERN TRENT GREEN POWER HOLDINGS LIMITED | 🇬🇧United Kingdom | 活躍 | 12/04/2026 – 出席 |
| 主任 | SEVERN TRENT GREEN POWER (NORTH LONDON) LIMITED | 🇬🇧United Kingdom | 活躍 | 11/04/2026 – 出席 |
| 主任 | SEVERN TRENT GREEN POWER (ARDLEY) LIMITED | 🇬🇧United Kingdom | 活躍 | 04/04/2026 – 17/02/2026 |
| 主任 | SEVERN TRENT GREEN POWER BIOGAS LIMITED | 🇬🇧United Kingdom | 活躍 | 08/04/2026 – 17/02/2026 |
| 主任 | SEVERN TRENT GREEN POWER GROUP LIMITED | 🇬🇧United Kingdom | 活躍 | 12/04/2026 – 出席 |
| 主任 | SEVERN TRENT GREEN POWER (BRIDGEND) LIMITED | 🇬🇧United Kingdom | 活躍 | 04/04/2026 – 17/02/2026 |
| 主任 | SEVERN TRENT GREEN POWER (CASSINGTON) LIMITED | 🇬🇧United Kingdom | 活躍 | 12/04/2026 – 出席 |
| 主任 | SEVERN TRENT GREEN POWER LIMITED | 🇬🇧United Kingdom | 活躍 | 12/04/2026 – 出席 |
| 主任 | SEVERN TRENT WIND POWER LIMITED | 🇬🇧United Kingdom | 活躍 | 12/04/2026 – 出席 |
| 主任 | ETWALL LAND LIMITED | 🇬🇧United Kingdom | 活躍 | 23/03/2026 – 17/02/2026 |