| HAYSON LIMITED | Private company limited by shares | Live |
| Hayson Brands Limited | Private company limited by shares | Live |
| HAYSON CO., LIMITED | Private company limited by shares | Dissolved |
| Hayson Inflight Co., Limited | Private company limited by shares | Live |
| HAYSON CONCEPT LIMITED | Private company limited by shares | Live |
| HAYSON DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| HAYSON DEVELOPMENT LIMITED | Private company limited by shares | Live |
| HAYSON ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| HAYSON ENGINEERING LIMITED | Private company limited by shares | Live |
| Hayson Engineering & Consulting Limited | | Live |
| HAYSON ENTERPRISES LIMITED | Private company limited by shares | Live |
| HAYSON GROUP LIMITED | Private company limited by shares | Dissolved |
| HAYSON (H.K.) ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| HONGKONG HAYSON LIMITED | Private company limited by shares | Dissolved |
| HAYSON INTERNATIONAL LIMITED | Private company limited by shares | Live |
| Hayson International Services Company Limited | Private company limited by shares | Live |
| HAYSON INTERNATIONAL TRADING LIMITED | Private company limited by shares | Dissolved |
| HAYSON INVESTMENT LIMITED | Private company limited by shares | Live |
| HAYSON RECRUITMENT SERVICES LIMITED | Private company limited by shares | Live |
| HAYSON TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |