| Y's ST Limited | Private company limited by shares | Live |
| SUNRISE (Y.S.) CO., LIMITED | Private company limited by shares | Dissolved |
| YI SHI (YS) TRADE CO., LIMITED | Private company limited by shares | Dissolved |
| Y.S. ENGINEERING LIMITED | Private company limited by shares | Live |
| Y.S. GROUP LIMITED | Private company limited by shares | Live |
| Y.S. ENTERTAINMENT GROUP LIMITED | Private company limited by shares | Live |
| MARS Y.S. INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| Y.S. LUGGAGE LIMITED | Private company limited by shares | Dissolved |
| Y.S. TOYS LIMITED | Private company limited by shares | Live |
| Y.S. & T.T. HANDBAGS FACTORY LIMITED | Private company limited by shares | Dissolved |
| ZYS YSABEL HOLDINGS LIMITED | Private company limited by shares | Live |
| Ysair HK Technology Co., Limited | Private company limited by shares | Live |
| YSAN TRADE CO., LIMITED | | Live |
| YSAN TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Y-sane Limited | Private company limited by shares | Dissolved |
| YSanlin Internet technology Co., Limited | | Live |
| YSART LIMITED | Private company limited by shares | Live |
| YSAWYA SPORTS GOODS CO., LIMITED | Private company limited by shares | Dissolved |
| HK YSBR LIMITED | | Live |
| Hong Kong YSBR Technology Co., Limited | | Live |
| YSBT Enterprise Company Limited | Private company limited by shares | Dissolved |
| YSBY PCB Limited | Private company limited by shares | Live |
| YSCEIFIOG LIMITED | Private company limited by shares | Dissolved |
| YSCN GROUP LIMITED | Private company limited by shares | Live |
| YSCOC LIMITED | Private company limited by shares | Dissolved |
| Yscoco Technologies Limited | Private company limited by shares | Live |
| QuanZhou YSColor Bag Company Limited | Private company limited by shares | Live |
| Y.S.D LIMITED | Private company limited by shares | Live |
| YSDCNC MACHINERY LIMITED | Private company limited by shares | Live |
| YSdecor Co., Limited | Private company limited by shares | Live |
| YSDEPOT TRADING CO., LIMITED | Private company limited by shares | Live |
| YSDY INDUSTRY COMPANY LIMITED | Private company limited by shares | Live |
| HK YSEA BUSINESS SECRETARY LIMITED | Private company limited by shares | Live |
| YSENG LIMITED | | Live |
| Hong Kong Yseng Technology Co., Limited | | Live |
| Yseno Trading Co., Limited | | Live |
| Ysera Limited | | Live |
| Hk Y-Seven Educational Group Limited | Private company limited by shares | Live |
| YSF(HK) TRADING LIMITED | Private company limited by shares | Live |
| YSFOOD HK LIMITED | Private company limited by shares | Live |
| YSFS01 LIMITED | | Live |
| YSFS02 LIMITED | | Live |
| YSFS03 LIMITED | | Live |
| YSFS04 LIMITED | | Live |
| YSFS05 LIMITED | | Live |
| YSGM888 LIMITED | Private company limited by shares | Live |
| Y.S.H. LIMITED | Private company limited by shares | Live |
| YShan Trading Co., Limited | Private company limited by shares | Live |
| YSHAN TECHNOLOGY LIMITED | Private company limited by shares | Live |
| YSHC COMPANY LIMITED | Private company limited by shares | Live |
| YSHEI TRADE LIMITED | | Live |
| YSHENG LIMITED | Private company limited by shares | Live |
| YSHENG TRADE CO., LIMITED | Private company limited by shares | Live |
| HK YSHENG INDUSTRY LIMITED | Private company limited by shares | Live |
| YSHENG TRADE LIMITED | | Live |
| YSHENG TRADING LIMITED | Private company limited by shares | Live |
| YSHIPPING LIMITED | Private company limited by shares | Live |
| YSHM GENERAL TRADING CO., LIMITED | Private company limited by shares | Live |
| YShowSerious Production Limited | Private company limited by shares | Live |
| YSHT INVESTMENT MANAGEMENT LIMITED | Private company limited by shares | Live |
| YSHUANG LIMITED | Private company limited by shares | Live |
| YSIN LIMITED | Private company limited by shares | Live |
| Y-SING COMPONENTS LIMITED | Private company limited by shares | Live |
| Y.sio Beauty Limited | | Live |
| Y.S.J. TRAVEL SERVICE CO., LIMITED | Private company limited by shares | Live |
| YSJX Wood Limited | Private company limited by shares | Live |
| FAR EAST Y.S.K. INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| YSKF LIMITED | Private company limited by shares | Live |
| YSKT DEVELOPMENTS LIMITED | Private company limited by shares | Dissolved |
| YSLA (INTERNATIONAL) COMPANY LIMITED | Private company limited by shares | Live |
| ASIA YSLH EXHIBITION LIMITED | | Live |
| YSLI INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| YSMAG INTERNATIONAL LIMITED | Private company limited by shares | Live |
| YSML Limited | | Live |
| HONGKONG YSMS INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| YSNCA LIMITED | Private company limited by shares | Live |
| CHINA YSNET LIMITED | Private company limited by shares | Dissolved |
| YSNISA CO., LIMITED | Private company limited by shares | Live |
| 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 |
| YSPAC LIMITED | Private company limited by shares | Live |
| Y-SPACE LIMITED | Company limited by guarantee | Dissolved |
| Yspace Limited | Private company limited by shares | Live |
| YSPIRIT LIMITED | Private company limited by shares | Live |
| Y-SQUARED LIMITED | Private company limited by shares | Live |
| YSRC INTERNATIONAL ENTERPRISE LIMITED | Private company limited by shares | Live |
| YSRY LIMITED | Private company limited by shares | Live |
| YSSD (Hong Kong) Limited | Private company limited by shares | Dissolved |
| van Ysseldijk Limited | Private company limited by shares | Live |
| YSST (HK) LIMITED | Private company limited by shares | Live |
| YSSY LIMITED | | Live |
| YSTAR LIMITED | Private company limited by shares | Live |
| YSTAR GROUP LIMITED | | Live |