| J.M.S. ENGINEERING (H.K.) LIMITED | Private company limited by shares | Live |
| J.M.S. INTERNATIONAL GROUP LIMITED | Private company limited by shares | Live |
| J.M.S. HongKong Limited | Private company limited by shares | Live |
| J.M.S. Productions (Asia) Limited | Private company limited by shares | Live |
| J.M.SERVICES LIMITED | Private company limited by shares | Dissolved |
| HONGKONG JMSJ LIMITED | Private company limited by shares | Live |
| J.M.SOFT COMPANY LIMITED | Private company limited by shares | Live |
| JMSSG LIMITED | Private company limited by shares | Live |
| JMSWORD LIMITED | | Live |