| HK TULONG INDUSTRIAL LIMITED | Private company limited by shares | Live |
| Tulpen Limited | Private company limited by shares | Live |
| TulpSure Limited | Private company limited by shares | Live |
| TULSIDEV LIMITED | Private company limited by shares | Dissolved |
| TULSYAN NEC LIMITED | Private company limited by shares | Dissolved |
| CL Tulufan Limited | Private company limited by shares | Live |
| Tulukong Technology Limited | Private company limited by shares | Live |
| TULUM LIMITED | Private company limited by shares | Dissolved |
| FRANCE TULUZI INDUSTRY GROUP (ASIA) LIMITED | Private company limited by shares | Dissolved |
| TULYAR INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| TUMAC LIMITED | Private company limited by shares | Live |
| TUMACO LIMITED | Private company limited by shares | Live |
| TUMAES Hong Kong Limited | Private company limited by shares | Live |
| TUMAKS LIMITED | Private company limited by shares | Dissolved |
| HK TUMAN INDUSTRY CO., LIMITED | Private company limited by shares | Live |
| TUMANKE (HK) LIMITED | Private company limited by shares | Live |
| Tumasik Star Energy Limited | Private company limited by shares | Live |
| TUMBELIN COMPANY LIMITED | Private company limited by shares | Live |
| TUMBLER COMPANY LIMITED | Private company limited by shares | Dissolved |
| TUMBLER ENTERPRISES LIMITED | Private company limited by shares | Live |
| TUMBLEWEED LIMITED | Private company limited by shares | Dissolved |
| TUMBO INDUSTRY LIMITED | Private company limited by shares | Live |
| TUMBOA COMPANY LIMITED | Private company limited by shares | Dissolved |
| Tumbomap Limited | Private company limited by shares | Live |
| TUMBREL INVESTMENT LIMITED | Private company limited by shares | Live |
| TUMBY LIMITED | Private company limited by shares | Dissolved |
| CHARM TUME COMPANY LIMITED | Private company limited by shares | Dissolved |
| TUMEGA TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| HK TUMEI PAINT INDUSTRY GROUP CO., LIMITED | Private company limited by shares | Live |
| TUMEI INTERNATIONAL TRADE CO., LIMITED | | Live |
| TUMEI INTERNATIONAL TRAVEL LIMITED | Private company limited by shares | Live |
| TUMEN LIMITED | Private company limited by shares | Dissolved |
| TUMEN AIL LIMITED | | Live |
| TUMENG LIMITED | Private company limited by shares | Live |
| TUMERIC COMPANY LIMITED | Private company limited by shares | Dissolved |
| TUMEX AGENCY AND FOREIGN TRADE COMPANY LIMITED | Private company limited by shares | Live |
| TUMEX CO., LIMITED | Private company limited by shares | Live |
| Urim & Tumim Consultants Limited | Private company limited by shares | Live |
| TUMINITS LIMITED | Private company limited by shares | Live |
| TUMMERS (ASIA) MACHINERY LIMITED | Private company limited by shares | Live |
| TUMMI INTERNATIONAL LIMITED | Private company limited by shares | Live |
| Tummy Cow Art & Design Company Limited | Private company limited by shares | Live |
| HAPPY TUMMY COMPANY LIMITED | Private company limited by shares | Live |
| Yummy Tummy (Hong Kong) Company Limited | Private company limited by shares | Live |
| YIPPEE TUMMY CATERING LIMITED | | Live |
| TummyB Family Limited | Private company limited by shares | Live |
| TUMO GLASS CO., LIMITED | Private company limited by shares | Live |
| Tumo Hao International Trade Co., Limited | | Live |
| Tumodo Holdings Limited | | Live |
| CHINA TUMOR RECUPERATION RESEARCH ACADEMY LIMITED | Private company limited by shares | Live |
| Chinese Tumor Prevention Association Limited | Private company limited by shares | Live |
| PVW BRAIN TUMOR FOUNDATION LIMITED | 擔保有限公司 | Live |
| CHINA TUMOR LAB (HONG KONG) LIMITED | Private company limited by shares | Live |
| Huaxia Tumor Kangfuhui Group Co., Limited | Private company limited by shares | Live |
| CHINESE TUMOR PREVENTION MEDICAL ASSOCIATION LIMITED | Private company limited by shares | Live |
| CHINA HIFU TUMOR TREATMENT & MEDICAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| TUMORE LIMITED | Private company limited by shares | Live |
| TUMORE DEVELOPMENTS LIMITED | Private company limited by shares | Dissolved |
| UNO GLOBAL TUMOUR CANCER QIMITE RADICAL CURE RESEARCH INSTITUTE LIMITED | Private company limited by shares | Live |
| CHINA ZLL CHAIN TUMOUR PREVENTION & TREATMENT HOLDINGS LIMITED | Private company limited by shares | Live |
| China Traditional Chinese Medicine Tumour Research Institute Co., Limited | Private company limited by shares | Live |
| China Tumour Precision Medicine Experts Association Limited | Private company limited by shares | Live |
| TUMTABLE COMPANY LIMITED | Private company limited by shares | Live |
| TUMTUNG INTERNATIONAL TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| TUMU TEAM LIMITED | Private company limited by shares | Live |
| TUMULTUS ASIA LIMITED | Private company limited by shares | Dissolved |
| Tumulus Limited | Private company limited by shares | Live |
| Tumushi Architecture & Urban Design Limited | Private company limited by shares | Live |
| Tuna HK Limited | Private company limited by shares | Dissolved |
| RED TUNA LIMITED | Private company limited by shares | Live |
| Tuna Limited -The- | Private company limited by shares | Live |
| TUNA OS LIMITED | | Live |
| TUNA CREATIVE LIMITED | Private company limited by shares | Live |
| INSTRIMPEX TUNA FASHION CO., LIMITED | Private company limited by shares | Dissolved |
| Hungry Tuna Limited | Private company limited by shares | Live |
| PACIFIC TUNA LIMITED | Private company limited by shares | Live |
| STAY TUNA PUBLISHING LIMITED | Private company limited by shares | Live |
| TUNAFOR INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| TUNAN (H.K.) LIMITED | Private company limited by shares | Live |
| TUNANET INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| Tunas Limited | | Live |
| TUNAS BERGUNA COMPANY LIMITED | Private company limited by shares | Dissolved |
| TUNATE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| Tunatutu Limited | | Live |
| TUNBIRANCE LIMITED | Private company limited by shares | Dissolved |
| TUNBO ELECTRICS LIMITED | Private company limited by shares | Dissolved |
| TUNBOW LIMITED | Private company limited by shares | Live |
| TUNBOW ELECTRICAL LIMITED | Private company limited by shares | Live |
| TUNBOW ELECTRONICS LIMITED | Private company limited by shares | Live |
| TUNBOW ELECTRONICS INDUSTRY LIMITED | Private company limited by shares | Live |
| TUNBOW CHARITY FOUNDATION LIMITED | Company limited by guarantee | Live |
| TUNBOW GROUP LIMITED | Private company limited by shares | Live |
| TUNBOW PROPERTIES LIMITED | Private company limited by shares | Live |
| TUNBRIDGE LIMITED | Private company limited by shares | Dissolved |
| TUNBRIDGE ESTATES LIMITED | Private company limited by shares | Dissolved |
| TUNBROWN LIMITED | Private company limited by shares | Live |
| TUNCANG GROUP LIMITED | Private company limited by shares | Live |
| TUNDA ADVERTISING LIMITED | Private company limited by shares | Dissolved |
| TUNDER ELECTRONICS COMPANY LIMITED | Private company limited by shares | Dissolved |
| TUNDERLY LIMITED | Private company limited by shares | Live |