| CHAKNAN & YIU, LIMITED | Private company limited by shares | Dissolved |
| Coase (Yiu On) Limited | Private company limited by shares | Live |
| WAH KIU (KWONG YIU) METAL WARE FACTORY LIMITED | Private company limited by shares | Dissolved |
| KA BO (LAI YIU) RESTAURANT COMPANY LIMITED | Private company limited by shares | Live |
| YIU, LOUIS AND LAM GARMENT FACTORY LIMITED | Private company limited by shares | Dissolved |
| MEN MONG REPAST (CHO YIU) LIMITED | | Live |
| UNITED (YIU FUNG) PRINTING PRODUCTS LIMITED | Private company limited by shares | Live |
| CENTRAL (YIU KEE) TRANSPORTATION COMPANY, LIMITED | Private company limited by shares | Dissolved |
| Yiuchongfung Limited | | Live |
| YIUCL01 COMPANY LIMITED | Private company limited by shares | Live |
| YIUFA (HK) LIMITED | Private company limited by shares | Live |
| YIUGOAL CONSTRUCTION LIMITED | Private company limited by shares | Live |
| Yiugoal Contractors Limited | Private company limited by shares | Live |
| YIUGOAL ENGINEERING LIMITED | | Live |
| YIUHAI TRADING INTERNATIONAL LIMITED | Private company limited by shares | Live |
| YIULAM INVESTMENT LIMITED | Private company limited by shares | Live |
| Hong Kong YiuLeiFah Industrial Co., Limited | | Live |
| YIULI COMPANY LIMITED | Private company limited by shares | Dissolved |
| YIULI INVESTMENTS COMPANY LIMITED | Private company limited by shares | Dissolved |
| YIULING LIMITED | Private company limited by shares | Dissolved |
| YIUMING LIMITED | Private company limited by shares | Dissolved |
| YIUMING INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| YIU'S COMPANY LIMITED | Private company limited by shares | Dissolved |
| YIU'S ENTERPRISES COMPANY LIMITED | Private company limited by shares | Dissolved |
| YIUSAN LIMITED | Private company limited by shares | Dissolved |
| YIUSHA LIMITED | Private company limited by shares | Dissolved |
| YIUSHING L. COMPANY LIMITED | Private company limited by shares | Dissolved |
| YIUSUN INVESTMENT CO. LIMITED | Private company limited by shares | Dissolved |
| YIUTECH ELECTRONICS COMPANY LIMITED | Private company limited by shares | Dissolved |
| Yiutech (HK) Technology Company Limited | Private company limited by shares | Live |
| YIUTECH HONG KONG LIMITED | Private company limited by shares | Live |
| YIUTECH INTERNATIONAL LIMITED | Private company limited by shares | Live |
| YIUTEX COMPANY LIMITED | Private company limited by shares | Dissolved |
| YIUTIN INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| YIUTON TRADING DEVELOPMENT COMPANY LIMITED | Private company limited by shares | Live |
| YIUTON TRADING LIMITED | Private company limited by shares | Live |
| YIUTUNG FASHION COMPANY LIMITED | Private company limited by shares | Live |
| YIUWAH & COMPANY, LIMITED | Private company limited by shares | Dissolved |
| YIUWONG INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| YiuYao Company Limited | Private company limited by shares | Live |
| YIUYING LIMITED | Private company limited by shares | Dissolved |
| YIUYIU BABYBOY LIMITED | Private company limited by shares | Live |
| YIUYIU1105 COMPANY LIMITED | Private company limited by shares | Live |