| ThinkJoy Limited | | Live |
| THINKLAB LIMITED | Private company limited by shares | Live |
| THINKLAND COMPANY LIMITED | Private company limited by shares | Dissolved |
| Thinklean Limited | Private company limited by shares | Live |
| THINKLEDGE LIMITED | Private company limited by shares | Dissolved |
| THINK-LINE CO. LIMITED | Private company limited by shares | Live |
| ThinkLink International Co., Limited | | Live |
| Thinklnfinity Limited | | Live |
| THINKLO Limited | Private company limited by shares | Live |
| ThinkLouder Limited | Private company limited by shares | Live |
| THINKMAC ELECTRONICS COMPANY LIMITED | Private company limited by shares | Live |
| ThinkMac International (HK) Limited | Private company limited by shares | Live |
| THINKMADE HK LIMITED | Private company limited by shares | Live |
| ThinkMatrix Limited | | Live |
| THINKMAX ENTERPRISE LIMITED | Private company limited by shares | Live |
| THINKMIND PRODUCTS LIMITED | Private company limited by shares | Dissolved |
| Thinkmore Limited | Private company limited by shares | Live |
| Thinkmore F&M Limited | | Live |
| Thinkmore Solutions Limited | | Live |
| Thinkmuse Co., Limited | Private company limited by shares | Live |
| THINKNAO SOFTWARE LIMITED | Private company limited by shares | Live |
| THINKNEXT LIMITED | Private company limited by shares | Dissolved |
| THINKNICE CO., LIMITED | Private company limited by shares | Live |
| THINKNOLIMIT COMPANY LIMITED | Private company limited by shares | Live |
| HK THINKO INFORMATION CO., LIMITED | Private company limited by shares | Live |
| Thinkology Limited | Private company limited by shares | Live |
| THINKOON (INTERNATIONAL) CO., LIMITED | Private company limited by shares | Live |
| THINKPAC INTERNATIONAL INDUSTRIAL LIMITED | Private company limited by shares | Live |
| THINKPHARMA CO., LIMITED | Private company limited by shares | Live |
| THINKPLAY LIMITED | Private company limited by shares | Live |
| THINKPLUS EXPO LIMITED | Private company limited by shares | Live |
| Thinkplus Expo Group Limited | | Live |
| THINKPORT SHIPPING COMPANY LIMITED | Private company limited by shares | Live |
| ThinkPossible International Holdings Limited | Private company limited by shares | Dissolved |
| Thinkpower Capital Co., Limited | Private company limited by shares | Live |
| THINKPOWER PRODUCTS CO., LIMITED | Private company limited by shares | Live |
| THINKPOWER TECHNOLOGY (HONGKONG) CO., LIMITED | Private company limited by shares | Live |
| THINKQUEEN COMPANY LIMITED | Private company limited by shares | Dissolved |
| THINKRED HOLDING LIMITED | Private company limited by shares | Live |
| ThinkRetail Limited | Private company limited by shares | Live |
| THINKROCK STONE CO., LIMITED | Private company limited by shares | Live |
| THINKS LIMITED | Private company limited by shares | Live |
| Ho Thinks Sports Association Limited | Private company limited by shares | Live |
| THINKS ENTERTAINMENT LIMITED | Private company limited by shares | Dissolved |
| ThinksArt Limited | Private company limited by shares | Live |
| THINKSCAPE FWP PTE LIMITED | Private company limited by shares | Live |
| THINKSEMI HK CO., LIMITED | Private company limited by shares | Live |
| Thinksideways Limited | Private company limited by shares | Live |
| THINKSMAKER LIMITED | Private company limited by shares | Live |
| ThinkSmall Limited | Private company limited by shares | Live |
| THINKSMART ADVERTISING LIMITED | Private company limited by shares | Dissolved |
| ThinkSmart Marketing Group Limited | | Live |
| THINKSMART TRAINING LIMITED | Private company limited by shares | Live |
| Thinkso Technology (Hong Kong) Limited | Private company limited by shares | Live |
| THINKSPACE FOOD&BEVERAGE MANAGEMENT (HK) CO., LIMITED | Private company limited by shares | Dissolved |
| THINKSTAR CO., LIMITED | Private company limited by shares | Live |
| THINKSTAR ENTERPRISE CO., LIMITED | Private company limited by shares | Live |
| THINKSTAR TECHNOLOGY (HK) LIMITED | Private company limited by shares | Live |
| THINK-STORMING COMPANY LIMITED | Private company limited by shares | Live |
| THINKSTV CO., LIMITED | | Live |
| YE THINKTA ELECTRONIC LIMITED | Private company limited by shares | Dissolved |
| AMZ Thinktank Limited | Private company limited by shares | Live |
| HM THINKTANK Limited | | Live |
| BaseLake ThinkTank (HongKong) Company Limited | | Live |
| THINKTANK (CHINA) LIMITED | Private company limited by shares | Dissolved |
| CHINA THINKTANK LIMITED | Private company limited by shares | Live |
| China ThinkTank (HK) Limited | Private company limited by shares | Live |
| THINK-TANK BUSINESS CONSULTING LIMITED | Private company limited by shares | Live |
| THINK-TANK (HK) COMPANY LIMITED | Private company limited by shares | Live |
| ThinkTank Learning Education Hong Kong Company Limited | Private company limited by shares | Live |
| INTERHOO THINKTANK LIMITED | Private company limited by shares | Dissolved |
| Metaverse Thinktank Investment Company Limited | | Live |
| LIFE THINKTANK COMPANY LIMITED | Private company limited by shares | Live |
| HON WIK THINKTANK INVESTMENT MANAGEMENT (H.K.) LIMITED | Private company limited by shares | Dissolved |
| THINKTANK MEDIA LIMITED | Company limited by guarantee | Live |
| Thinktank Publishing Limited | Private company limited by shares | Live |
| THINKTANK AUDIO-VISUAL SOLUTIONS LIMITED | Private company limited by shares | Dissolved |
| SURE CAPITAL THINK-TANK GROUP LIMITED | Private company limited by shares | Live |
| ThinkTank System Limited | Private company limited by shares | Live |
| THINKTANK SYSTEM (HK) LIMITED | Private company limited by shares | Live |
| THINKTANK SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| CHINESE THINK-TANK UNITED ASSOCIATION LIMITED | Private company limited by shares | Live |
| YANS THINKTANK LIMITED | Private company limited by shares | Live |
| THINKTE CO. LIMITED | Private company limited by shares | Live |
| THINKTEC INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| THINKTECH LIMITED | Private company limited by shares | Live |
| Thinktech Limited | Private company limited by shares | Live |
| THINKTECH TECHNOLOGY INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| ThinkTech Technology Limited | Private company limited by shares | Live |
| THINKTECH TECHNOLOGY (H.K) COMPANY LIMITED | Private company limited by shares | Dissolved |
| ThinkTech Trading Limited | Private company limited by shares | Live |
| THINKTEK HONG KONG LIMITED | Private company limited by shares | Dissolved |
| ThinkThinkSyn Limited | | Live |
| THINKTHINKTHINK LIMITED | Private company limited by shares | Live |
| THINKTM LIMITED | Private company limited by shares | Live |
| THINKTOP CLOCK LIMITED | Private company limited by shares | Live |
| THINKTOP (HONGKONG) CO., LIMITED | Private company limited by shares | Dissolved |
| THINKTOP INFOTECH COMPANY LIMITED | Private company limited by shares | Live |
| ThinkTop Network Information Limited | Private company limited by shares | Live |
| THINKTOP TECHNOLOGY (HK) CO., LIMITED | Private company limited by shares | Live |