| HEADWELL LIMITED | Private company limited by shares | Dissolved |
| HEADWELL (ASIA) LIMITED | Private company limited by shares | Live |
| HEADWELL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| HEADWELL (HONG KONG) LIMITED | Private company limited by shares | Live |
| HEADWELL INVESTMENT LIMITED | Private company limited by shares | Live |
| HEADWELL INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| HEADWELL MANAGEMENT LIMITED | Private company limited by shares | Live |
| HEADWELL TRADING LIMITED | Private company limited by shares | Live |