| Person with significant control | FOREST GROUP HOLDINGS LIMITED | 🇬🇧United Kingdom | Active | 07/12/2025 – present |
| Person with significant control | CLINIWASTE HEALTH SOUTH LIMITED | 🇬🇧United Kingdom | Active | 08/12/2025 – present |
| Person with significant control | J C A ENGINEERING LTD | 🇬🇧United Kingdom | Active | 08/12/2025 – present |
| Person with significant control | SLADEMAIN LIMITED | 🇬🇧United Kingdom | Active | 07/12/2025 – present |
| Person with significant control | WOODFORD INVESTMENTS LIMITED | 🇬🇧United Kingdom | Active | 03/12/2025 – present |
| Person with significant control | GBE CONVERGE GROUP LTD | 🇬🇧United Kingdom | Active | 25/06/2024 – present |
| Person with significant control | MITIE CLEANING & ENVIRONMENTAL SERVICES LIMITED | 🇬🇧United Kingdom | Active | 26/06/2024 – present |
| Person with significant control | CLINIWASTE HOLDINGS LIMITED | 🇬🇧United Kingdom | Liquidation | 22/06/2024 – present |
| Person with significant control | JCA HEAD CO LIMITED | 🇬🇧United Kingdom | Liquidation | 14/06/2024 – present |
| Person with significant control | RHI INDUSTRIALS LIMITED | 🇬🇧United Kingdom | Active | 21/06/2024 – present |
| Person with significant control | ARC TRAINING INTERNATIONAL LIMITED | 🇬🇧United Kingdom | Liquidation | 25/06/2024 – 05/04/2023 |
| Person with significant control | LINX INTERNATIONAL GROUP LIMITED | 🇬🇧United Kingdom | Active | 26/06/2024 – present |
| Person with significant control | TAVCOM LIMITED | 🇬🇧United Kingdom | Active | 26/06/2024 – 05/04/2023 |
| Person with significant control | PERPETUITY TRAINING LIMITED | 🇬🇧United Kingdom | Active | 26/06/2024 – 05/04/2023 |
| Person with significant control | MITIE SECURITY LIMITED | 🇬🇧United Kingdom | Active | 25/06/2024 – present |
| Person with significant control | GLOBAL AWARE INTERNATIONAL LTD | 🇬🇧United Kingdom | Liquidation | 23/06/2024 – present |
| Person with significant control | MITIE TRANSPORT SERVICES LIMITED | 🇬🇧United Kingdom | Liquidation | 21/06/2024 – present |
| Person with significant control | MITIE RESOURCES LIMITED | 🇬🇧United Kingdom | Liquidation | 22/06/2024 – present |
| Person with significant control | MITIE SERVICES (RETAIL) LIMITED | 🇬🇧United Kingdom | Liquidation | 26/06/2024 – present |
| Person with significant control | MITIE MANAGED SERVICES LIMITED | 🇬🇧United Kingdom | Liquidation | 25/06/2024 – present |
| Person with significant control | MITIE SECURITY HOLDINGS LIMITED | 🇬🇧United Kingdom | Liquidation | 26/06/2024 – present |
| Person with significant control | MITIE DORMANT (NO.1) LIMITED | 🇬🇧United Kingdom | Liquidation | 22/06/2024 – present |
| Person with significant control | DIRECT ENQUIRIES HOLDINGS LIMITED | 🇬🇧United Kingdom | Liquidation | 26/06/2024 – present |
| Person with significant control | VERGO PEST MANAGEMENT LTD | 🇬🇧United Kingdom | Active | 26/06/2024 – 30/09/2018 |
| Person with significant control | MITIE CLIENT SERVICES LIMITED | 🇬🇧United Kingdom | Dissolved | 26/06/2024 – present |
| Person with significant control | MITIE T S 2 LIMITED | 🇬🇧United Kingdom | Dissolved | 26/06/2024 – present |
| Person with significant control | MITIE CARE AND CUSTODY LIMITED | 🇬🇧United Kingdom | Active | 20/06/2024 – present |
| Person with significant control | SWISS POST SOLUTIONS BUSINESS SERVICES LIMITED | 🇬🇧United Kingdom | Active | 26/06/2024 – 30/09/2021 |
| Person with significant control | MITIE DOCUMENT SOLUTIONS LIMITED | 🇬🇧United Kingdom | Liquidation | 20/06/2024 – present |
| Person with significant control | MITIE PFI LIMITED | 🇬🇧United Kingdom | Active | 25/06/2024 – present |
| Person with significant control | MITIE CLEANING SERVICES LIMITED | 🇬🇧United Kingdom | Liquidation | 26/06/2024 – present |
| Person with significant control | MITIE LANDSCAPES LIMITED | 🇬🇧United Kingdom | Active | 25/06/2024 – present |
