| SIMSO TRADE COMPANY LIMITED | Private company limited by shares | Live |
| SIMSON LIMITED | Private company limited by shares | Dissolved |
| Simson HK Limited | Private company limited by shares | Live |
| SIMSON COMPANY LIMITED | Private company limited by shares | Live |
| HK SIMSON CO., LIMITED | Private company limited by shares | Live |
| SIMSON INTERNATIONAL (GROUP) ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SIMSON (HONG KONG) MEDICAL MANAGEMENT LIMITED | Private company limited by shares | Live |
| SIMSON INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| SIMSON INTERNATIONAL LIMITED | Private company limited by shares | Live |
| SIMSON INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| Simson Human Resource Consultant Limited | Private company limited by shares | Live |
| SIMSON WELLNESS TECH LIMITED | Private company limited by shares | Live |
| Simson Trading Limited | Private company limited by shares | Live |
| SIMSONS ENTERPRISES (H.K.) LIMITED | Private company limited by shares | Live |