| YAT'S TRADING COMPANY LIMITED | | Live |
| YATSA LIMITED | Private company limited by shares | Live |
| YATSAM (HK) COMPANY LIMITED | | Live |
| YATSAN LIMITED | Private company limited by shares | Dissolved |
| YATSLEY CO. LIMITED | Private company limited by shares | Dissolved |
| YatSon Company Limited | Private company limited by shares | Live |
| YATSON (H.K.) CO. LIMITED | Private company limited by shares | Live |
| YATSON INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| YATSTRONG INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| YATSUKA CO., LIMITED | Private company limited by shares | Live |
| YATSUKA TRADING COMPANY LIMITED | Private company limited by shares | Live |
| Yatsukoshi Glasses Technology Co., Limited | Private company limited by shares | Live |
| YATSUN LIMITED | Private company limited by shares | Live |
| YATSUN YORKJEANS COMPANY LIMITED | Private company limited by shares | Live |
| Yatta Limited | Private company limited by shares | Live |
| YATTA LUNTA LIMITED | Private company limited by shares | Dissolved |
| YAT-TECH (H.K.) CO. LIMITED | Private company limited by shares | Live |
| YATTENCON ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| YATTENDON ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| YATTOHEY COMPANY LIMITED | Private company limited by shares | Live |
| YATTON INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| YATTON LABEL COMPANY LIMITED | Private company limited by shares | Dissolved |
| Yatton Technology Limited | Private company limited by shares | Live |
| YATTON ADVANCED TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| YATUE TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| YATUEN COMPANY LIMITED | Private company limited by shares | Live |
| Yatuo Trading Limited | | Live |
| YATVOR LIMITED | Private company limited by shares | Dissolved |
| YATWAH GROUP LIMITED | Private company limited by shares | Live |
| YATWAY COMPANY LIMITED | Private company limited by shares | Dissolved |
| YATWO INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| YATZAR LIMITED | Private company limited by shares | Live |
| YATZHOU ENTERPRISES CO., LIMITED | Private company limited by shares | Dissolved |
| HOT BOWL (YAU TONG) LIMITED | Private company limited by shares | Live |
| SHUI ON NURSING CENTRE (YAU TONG) COMPANY LIMITED | Private company limited by shares | Live |
| TAK CHEONG (YAU KEE) ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| TAK CHEONG (YAU KEE) ENTERPRISE LIMITED | Private company limited by shares | Live |
| TAK CHEONG (YAU LEE) ENGINEERING LIMITED | Private company limited by shares | Live |
| FS EDUCATION CENTRE (YAU TONG BRANCH) LIMITED | Private company limited by shares | Live |
| WING FAT (YAU WANG) ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| WANG FU (YEE YAU) ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| Tai Yau Formwork Engineering Limited | Private company limited by shares | Live |
| CONRAD CARE HOME (YAU TONG) LIMITED | Private company limited by shares | Live |
| HING NAM NURSING HOME (YAU SAN STREET) LIMITED | Private company limited by shares | Live |
| Light Be (Yau Tong Social Housing) Company Limited | | Live |
| CHUNG KIU (YAU YEE) MEDICINE COMPANY LIMITED | Private company limited by shares | Dissolved |
| Man Success (Yau Tsim Mong) Industry Limited | | Live |
| SPEED VAST (YAU TSIM MONG) COMPANY LIMITED | Private company limited by shares | Live |
| AWT REALTY (YAU TSIM MONG) LIMITED | Private company limited by shares | Dissolved |
| DONG GU ORTHOPAEDIC (YAU YUEN NATUROPATHY) LIMITED | Private company limited by shares | Live |
| TSING MUI PIANO (YAU YAT CHUEN) COMPANY LIMITED | Private company limited by shares | Dissolved |
| RICACORP PROPERTIES (YAU YAT TSUEN) LIMITED | Private company limited by shares | Dissolved |
| LEE KWAN (YAU OI) SEAFOOD RESTAURANT LIMITED | Private company limited by shares | Live |
| YAU SHING (YAU FAT) PIECE GOODS COMPANY LIMITED | Private company limited by shares | Dissolved |
| Shirley's Heart (Yau Ma Tei) Company Limited | Private company limited by shares | Live |
| KIN SING (YAT YAU) DEVELOPMENT LIMITED | Private company limited by shares | Live |
| Hotel COZi (Yau Kom Tau) Limited | Private company limited by shares | Live |
| Pei Ho Counterparts (Yau Ma Tei) Company Limited | Private company limited by shares | Live |
| NEW CENTURY YAUBON CO., LIMITED | Private company limited by shares | Dissolved |
| YAUBON CARPET MANUFACTURER LIMITED | Private company limited by shares | Dissolved |
| YAUBON TECHNOLOGIES LIMITED | Private company limited by shares | Live |
| Yauching Limited | Private company limited by shares | Live |
| YAUCHOI ENTERPRISES COMPANY LIMITED | Private company limited by shares | Dissolved |
| YAUCHOY INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| YAUCO ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| YAUDOWAN INVESTMENT CO., LIMITED | Private company limited by shares | Live |
| YAUFAT ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| CHINA SHIN YAUG INT'L WINERY GROUP LIMITED | Private company limited by shares | Live |
| YAUGI LIMITED | Private company limited by shares | Live |
| YAUHING WATCH LIMITED | | Live |
| YAUING TIMBER LIMITED | Private company limited by shares | Live |
| YAUKI CONSTRUCTION COMPANY LIMITED | Private company limited by shares | Live |
| YAUKING ENVIRONMENT PLANNING & DESIGN INSTITUTE CO., LIMITED | Private company limited by shares | Live |
| YAUKIU COMPANY LIMITED | Private company limited by shares | Live |
| YAU&LAM TRADE CO., LIMITED | Private company limited by shares | Live |
| YAULD BOSS LIMITED | Private company limited by shares | Live |
| TEAM YAULD COMPANY LIMITED | Private company limited by shares | Dissolved |
| YAULEE LIMITED | Private company limited by shares | Dissolved |
| YAULEE STANDARD LIMITED | Private company limited by shares | Dissolved |
| Yauleibistro & Biggap Company Limited | Private company limited by shares | Live |
| YAULEY TIMBER COMPANY LIMITED | Private company limited by shares | Live |
| YAULIN CONSTRUCTION ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| Yaumai Holdings Limited | Private company limited by shares | Live |
| Yaumanci Health and Beauty Limited | Private company limited by shares | Live |
| CHURCH OF CHRIST IN CHINA YAUMATI KEI TO CHURCH -THE- | Company limited by guarantee | Live |
| YAUMI COMPANY LIMITED | Private company limited by shares | Dissolved |
| YAO YAUN COMPANY LIMITED | Private company limited by shares | Dissolved |
| TAI YAUN TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| YAUNEWS LIMITED | Private company limited by shares | Dissolved |
| Yaungetic Limited | Private company limited by shares | Live |
| YAUON LIMITED | Private company limited by shares | Dissolved |
| YAUON ENTERPRISE DEV LIMITED | Private company limited by shares | Live |
| YAUPO INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| YAUPON ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| YAURA LIMITED | Private company limited by shares | Dissolved |
| Yau's Limited | Private company limited by shares | Live |
| YAU'S AND SON ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| China YauShing Industrial Limited | Private company limited by shares | Live |
| HK YAUSING INDUSTRIAL LIMITED | Private company limited by shares | Live |
| YAUSIR.COM COMPANY LIMITED | Private company limited by shares | Dissolved |