| T.S. CHU ARCHITECTS LIMITED | Private company limited by shares | Live |
| T.S. CAPITAL LIMITED | Private company limited by shares | Live |
| T.S. Dynasty Limited | Private company limited by shares | Live |
| T.S. FINANCE LIMITED | Private company limited by shares | Dissolved |
| T.S. FORM COMPANY LIMITED | Private company limited by shares | Dissolved |
| T.S. Glory Limited | Private company limited by shares | Live |
| T.S. HENSTRIDGE LIMITED | Private company limited by shares | Dissolved |
| T.S. Majesty Limited | Private company limited by shares | Live |
| TS112 LIMITED | Private company limited by shares | Live |
| TS28 Limited | Private company limited by shares | Live |
| TSACHA GROUP LIMITED | Private company limited by shares | Dissolved |
| TSACK KAR ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| Tsada Limited | Private company limited by shares | Live |
| TSADOR TRADING LIMITED | Private company limited by shares | Live |
| TSaerospace Limited | Private company limited by shares | Dissolved |
| WU TSAI COMPANY, LIMITED | Private company limited by shares | Dissolved |
| TSAI SEI COMPANY LIMITED | Private company limited by shares | Dissolved |
| TSAI WO COMPANY LIMITED | Private company limited by shares | Dissolved |
| YAO TSAI COMPANY LIMITED | Private company limited by shares | Dissolved |
| TSAI TSU LIMITED | Private company limited by shares | Dissolved |
| SAM MUN TSAI LIMITED | Private company limited by shares | Live |
| CAROLINE TSAI FASHION INTERNATIONAL CO., LIMITED | Private company limited by shares | Dissolved |
| TSAI CHAIO COMPANY LIMITED | Private company limited by shares | Live |
| TSAI CHIEN WANG INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| SHA CHING HONG TSAI SANG TONG LIMITED | Private company limited by shares | Live |
| FA TSAI CROSS-BORDER E-COMMERCE CO., LIMITED | | Live |
| TSAI LIAO CORP LIMITED | Private company limited by shares | Live |
| DR. TSAI INTERNATIONAL CORPORATION LIMITED | Private company limited by shares | Dissolved |
| TSAI KEE ELECTRICAL CO. LIMITED | Private company limited by shares | Dissolved |
| TSAI LEE ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| WAH TSAI ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| TAI TAU TSAI ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Live |
| TSAI ZHU ENTERPRISES COMPANY LIMITED | Private company limited by shares | Dissolved |
| TSAI HO ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| YUEN CHAU TSAI ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| Tin Fu Tsai Farming Limited | | Live |
| Joe and Clara Tsai Charitable Foundation Limited | Company limited by guarantee | Live |
| TSAI ON GROUP LIMITED | Private company limited by shares | Live |
| TSAI HING COMPANY LIMITED | Private company limited by shares | Live |
| TE TSAI CONSTRUCTION (HONG KONG) COMPANY LIMITED | Private company limited by shares | Dissolved |
| Hong Kong Leung Po Tsai Group Company Limited | Private company limited by shares | Live |
| TSAI (HONGKONG) INDUSTRIAL GROUP CO., LIMITED | Private company limited by shares | Live |
| LUNG AND TSAI INDUSTRIAL CO., LIMITED | Private company limited by shares | Dissolved |
| TSAI YI MACHINERY INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Live |
| S & W Tsai International Limited | Private company limited by shares | Dissolved |
| TSAI AND I INTERNATIONAL LIMITED | Private company limited by shares | Live |
| LAI & TSAI INVESTMENT INTERNATIONAL LIMITED | Private company limited by shares | Live |
| WAI KEE TSAI INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Live |
| JACKY TSAI ART LIMITED | Private company limited by shares | Live |
| Mason Tsai Jewelry Corporation Limited | Private company limited by shares | Live |
| TSAI LIAO LIMITED | Private company limited by shares | Live |
| Fu Tsai Catering Management Co., Limited | Private company limited by shares | Live |
| KOWLOON TSAI HOME OWNERS ASSOCIATION -THE- | Company limited by guarantee | Live |
| TSAI TE PLASTICS CO., LIMITED | Private company limited by shares | Dissolved |
| SAM TSAI RESTAURANT LIMITED | Private company limited by shares | Dissolved |
| PUI TSAI SEAFOOD COMPANY LIMITED | Private company limited by shares | Live |
| TSAI SERVICE COMPANY LIMITED | Private company limited by shares | Dissolved |
| YIM TIN TSAI VILLAGE SERVICE COMPANY LIMITED | Private company limited by shares | Dissolved |
| TSAI SANG TONG LIMITED | Private company limited by shares | Live |
| HUI TSAI TRADING LIMITED | Private company limited by shares | Dissolved |
| FAY TSAI LAM TRADING LIMITED | Private company limited by shares | Dissolved |
| CHU TSAI TRADING LIMITED | Private company limited by shares | Dissolved |
| WING TSAI INVESTMENTS LIMITED | Private company limited by shares | Live |
| Wong Tsai Investments Limited | Private company limited by shares | Live |
| Wong Tsai Vehicles Investments Limited | Private company limited by shares | Live |
| Wong Tsai Transportation Limited | Private company limited by shares | Live |
| WONG TSAI OIL TRANSPORTATION LIMITED | Private company limited by shares | Live |
| Wong Tsai Transportation Investments Limited | Private company limited by shares | Live |
| YUET SUM TSAI LIMITED | Private company limited by shares | Live |
| TSAIGER HK LIMITED | | Live |
| TSAIR SHUENN MACHINERY INDUSTRY (H.K.) COMPANY LIMITED | Private company limited by shares | Live |
| TSAI'S ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| TSAI'S ENTERPRISES LIMITED | Private company limited by shares | Live |
| TSAIS TRADING COMPANY LIMITED | Private company limited by shares | Live |
| TSALELHSCH Limited | | Live |
| T-SALIM COMPUTERS LIMITED | Private company limited by shares | Dissolved |
| TSALYS LIMITED | Private company limited by shares | Live |
| KONG TSAM LIMITED | Private company limited by shares | Dissolved |
| NG TSAN KEE COMPANY LIMITED | Private company limited by shares | Dissolved |
| JIN TSAN COMPANY LIMITED | Private company limited by shares | Live |
| TSAN HOP LIMITED | Private company limited by shares | Dissolved |
| PAO TSAN LIMITED | Private company limited by shares | Live |
| T-SAN LIMITED | | Live |
| FOOK TSAN COMPANY LIMITED | Private company limited by shares | Dissolved |
| Tsanchin Enterprise Limited | Private company limited by shares | Live |
| TSANEE COMPANY LIMITED | Private company limited by shares | Dissolved |
| TSANFUL COMPANY LIMITED | Private company limited by shares | Live |
| TSANG FOO AND COMPANY, LIMITED | Private company limited by shares | Dissolved |
| TSANG KAN COMPANY, LIMITED | Private company limited by shares | Dissolved |
| SAM TSANG & COMPANY LIMITED | Private company limited by shares | Dissolved |
| TSANG PAO COMPANY LIMITED | Private company limited by shares | Dissolved |
| TSANG CHI COMPANY LIMITED | Private company limited by shares | Dissolved |
| TSANG LIK COMPANY LIMITED | Private company limited by shares | Live |
| DOR TSANG COMPANY LIMITED | Private company limited by shares | Dissolved |
| TSANG SAN COMPANY LIMITED | Private company limited by shares | Live |
| LAW AND TSANG COMPANY LIMITED | Private company limited by shares | Dissolved |
| LAM TSANG SUK YEE COMPANY LIMITED | Private company limited by shares | Dissolved |
| H. W. TSANG LIMITED | Private company limited by shares | Live |
| KAI TSANG LIMITED | Private company limited by shares | Live |
| TEH TSANG COMPANY LIMITED | Private company limited by shares | Dissolved |