| Company Name | Type | Status |
|---|---|---|
| YSOFT CONSULTING LIMITED | Private company limited by shares | Live |
| Ysolar (Hong Kong) Limited | Private company limited by shares | Live |
| YSOLUTION LIMITED | Private company limited by shares | Live |
| YSOM CO LIMITED | Private company limited by shares | Dissolved |
| Ysong Co., Limited | Live | |
| YSONG TRADE LIMITED | Live | |
| HONG KONG Y.S.O.P INT'L FASHION LIMITED | Private company limited by shares | Dissolved |
| YSOS Limited | Live | |
| Y-SOUND LIMITED | Private company limited by shares | Live |