| 4-TEC SOLUTIONS LIMITED | Private company limited by shares | Live |
| 4TECH WORLD (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| 4techie Limited | | Live |
| 4THEPACK Limited | Private company limited by shares | Live |
| 4TheTravel.com Limited | Private company limited by shares | Live |
| 4TMLL Toast Limited | Private company limited by shares | Live |
| 4to5 Limited | Private company limited by shares | Live |
| 4tonight Limited | | Live |
| 4TRADE LIMITED | Private company limited by shares | Live |
| 4-TUNE CO. LIMITED | Private company limited by shares | Dissolved |
| 4tutor HK Limited | Private company limited by shares | Live |
| 4U-LEDS LIMITED | Private company limited by shares | Dissolved |
| 4Union Limited | | Live |
| 4UPR company Limited | | Live |
| 4USOURCING LIMITED | Private company limited by shares | Live |
| NINGBO 4USUNNY PHOTOELECTRICAL TECHNOLOGY (HK) CO., LIMITED | | Live |
| 4VIP Limited | Private company limited by shares | Live |
| 4WALK4 LIMITED | Private company limited by shares | Live |
| 4WARD LIMITED | Private company limited by shares | Live |
| 4WDBC (CHINA) CO., LIMITED | Private company limited by shares | Dissolved |
| 4-WIN ENTERPRISES COMPANY LIMITED | Private company limited by shares | Live |
| 4XHUB LIMITED | Private company limited by shares | Live |
| 4YOU LIMITED | Private company limited by shares | Live |
| China 4You Limited | Private company limited by shares | Dissolved |
| Medic 4you Limited | Private company limited by shares | Dissolved |