| Persona con control significativo | PRECISION MACHINED COMPONENTS LIMITED | 🇬🇧United Kingdom | Activa | 21/6/2024 – presente |
| Persona con control significativo | PT PRECISION MACHINED COMPONENTS LIMITED | 🇬🇧United Kingdom | Activa | 15/6/2024 – 8/10/2024 |
| Persona con control significativo | MARTRACT LIMITED | 🇬🇧United Kingdom | Activa | 2/12/2025 – 30/5/2018 |
| Persona con control significativo | PT BIOGAS HOLDINGS LIMITED | 🇬🇧United Kingdom | Activa | 26/6/2024 – 3/6/2019 |
| Persona con control significativo | CHESTERFIELD TUBE COMPANY LIMITED | 🇬🇧United Kingdom | Activa | 23/6/2024 – 20/3/2025 |
| Persona con control significativo | CHESTERFIELD PRESSURE SYSTEMS GROUP LIMITED | 🇬🇧United Kingdom | Activa | 26/6/2024 – presente |
| Persona con control significativo | HYDRATRON LIMITED | 🇬🇧United Kingdom | Activa | 13/6/2024 – 7/6/2018 |
| Persona con control significativo | ROOTA ENGINEERING LIMITED | 🇬🇧United Kingdom | Activa | 8/12/2025 – 30/5/2018 |
| Persona con control significativo | AL-MET LIMITED | 🇬🇧United Kingdom | Activa | 8/12/2025 – 30/5/2018 |
| Persona con control significativo | QUADSCOT PRECISION ENGINEERS LIMITED | 🇬🇧United Kingdom | Activa | 20/6/2024 – 6/4/2016 |
| Persona con control significativo | GREENLANE BIOGAS EUROPE LIMITED | 🇬🇧United Kingdom | Activa | 22/6/2024 – 2/6/2019 |
| Persona con control significativo | CHESTERFIELD CYLINDERS LIMITED | 🇬🇧United Kingdom | Activa | 26/6/2024 – 20/3/2025 |
| Persona con control significativo | CHESTERFIELD SPECIAL CYLINDERS LIMITED | 🇬🇧United Kingdom | Activa | 26/6/2024 – presente |
| Persona con control significativo | PT BIOGAS TECHNOLOGY LIMITED | 🇬🇧United Kingdom | Activa | 26/6/2024 – 2/6/2019 |
| Persona con control significativo | QUADSCOT HOLDINGS LIMITED | 🇬🇧United Kingdom | Activa | 23/6/2024 – 30/5/2018 |
