| BRAIN POWER (HK) COMPANY LIMITED | Private company limited by shares | Dissolved |
| Prosperous Luxurious Brain Palace Productions Limited | Private company limited by shares | Dissolved |
| WHOLE BRAIN PRODUCTIONS LIMITED | Private company limited by shares | Dissolved |
| BRAIN PROJECTS LIMITED | Private company limited by shares | Live |
| TOP BRAIN PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| Brain Quotient Company Limited | Private company limited by shares | Dissolved |
| Brain Rejuvenation Limited | Private company limited by shares | Live |
| BRAIN RESERVE LIMITED | Private company limited by shares | Dissolved |
| BRAIN RESOURCES ENTERPRISES COMPANY LIMITED | Private company limited by shares | Live |
| BRAIN RICH LIMITED | Private company limited by shares | Dissolved |
| RICH BRAIN LIMITED | Private company limited by shares | Dissolved |
| RIGHT BRAIN LIMITED | Private company limited by shares | Live |
| RIGHT BRAIN WORKSHOP LIMITED | Private company limited by shares | Live |
| BRAIN SCIENTIFIC INSTRUMENT LIMITED | Private company limited by shares | Live |
| BRAIN SEED LIMITED | Private company limited by shares | Live |
| BRAIN SHARE LIMITED | Private company limited by shares | Dissolved |
| SILVER BRAIN LIMITED | Private company limited by shares | Dissolved |
| BRAIN SMARK LIMITED | Private company limited by shares | Dissolved |
| SMART BRAIN LIMITED | Private company limited by shares | Dissolved |
| BRAIN SMART LIMITED | Private company limited by shares | Dissolved |
| Smart Brain Limited | Private company limited by shares | Dissolved |
| SMART BRAIN LIMITED | Private company limited by shares | Live |
| SMART BRAIN ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| BRAIN SMART INTELLIGENCE LIMITED | | Live |
| SOFT BRAIN CORPORATION LIMITED | Private company limited by shares | Live |
| BRAIN AND SOLUTIONS COMPANY LIMITED | Private company limited by shares | Dissolved |
| SPECIAL BRAIN LIMITED | Private company limited by shares | Dissolved |
| SPIRIT BRAIN LIMITED | Private company limited by shares | Dissolved |
| BRAIN SQUARE ASSOCIATES LIMITED | Private company limited by shares | Dissolved |
| BRAIN STAR LIMITED | Private company limited by shares | Dissolved |
| BRAIN STAR LIMITED | Private company limited by shares | Live |
| STAR BRAIN LIMITED | Private company limited by shares | Live |
| STAR BRAIN LIMITED | Private company limited by shares | Live |
| BRAIN STORM LIMITED | Private company limited by shares | Dissolved |
| STRONG BRAIN LIMITED | Private company limited by shares | Dissolved |
| ZHIHUIGAO STRONGEST BRAIN GROUP CO., LIMITED | Private company limited by shares | Live |
| MONSTER BRAIN STUDIOS LIMITED | Private company limited by shares | Live |
| SUCCESS BRAIN LIMITED | Private company limited by shares | Live |
| BRAIN SUMMIT LIMITED | Private company limited by shares | Dissolved |
| SUMMIT BRAIN NEW PRODUCTION AGENCY LIMITED | Private company limited by shares | Dissolved |
| BRAIN SUPER LIMITED | Private company limited by shares | Dissolved |
| TAIWAN HONG BRAIN ART STUDIO LIMITED | Private company limited by shares | Live |
| TEAM BRAIN LIMITED | Private company limited by shares | Dissolved |
| BRAIN TECH. LIMITED | Private company limited by shares | Dissolved |
| Tech Brain Limited | | Live |
| Brain Technologies (Hong Kong) Limited | Private company limited by shares | Live |
| BRAIN TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| Brain Technology Co., Limited | Private company limited by shares | Live |
| Brain Maps Technology Co., Limited | Private company limited by shares | Live |
| Brain Power Electronic Technology (HK) Limited | Private company limited by shares | Live |
| CHINA BRAIN HEALTH TECHNOLOGY GROUP LIMITED | Private company limited by shares | Dissolved |
| Multiple Brain Science and Technology Group Limited | Private company limited by shares | Live |
| BRAIN POWER TECHNOLOGY LIMITED | Private company limited by shares | Live |
| TINY BRAIN COMPANY LIMITED | Private company limited by shares | Live |
| BRAIN TONIC COMMUNICATIONS LIMITED | Private company limited by shares | Live |
| BRAIN TRADE LIMITED | Private company limited by shares | Dissolved |
| BRAIN TRAIN INTERNATIONAL LIMITED | Private company limited by shares | Live |
| BRAIN AHEAD TRAINING LIMITED | Private company limited by shares | Live |
| BRAIN VALUE LIMITED | Private company limited by shares | Live |
| BRAIN VENTURE LIMITED | Private company limited by shares | Dissolved |
| VICTORY BRAIN LIMITED | Private company limited by shares | Live |
| BRAIN VIEW LIMITED | Private company limited by shares | Dissolved |
| BRAIN WAVE LIMITED | Private company limited by shares | Dissolved |
| BRAIN WEALTH LIMITED | Private company limited by shares | Live |
| WELL BRAIN LIMITED | Private company limited by shares | Dissolved |
| WELL BRAIN INTERNATIONAL LIMITED | Private company limited by shares | Live |
| WISE BRAIN LIMITED | Private company limited by shares | Live |
| BRAIN WORKS INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| Brain Health Care Workshop Company Limited | Private company limited by shares | Live |
| Brain World Era Limited | | Live |
| BRAIN YINGHANG TECHNOLOGY (HK) LIMITED | | Live |
| Brainana Dot Limited | | Live |
| BRAINART MEMORY LIMITED | Private company limited by shares | Live |
| Brainbeanz Limited | Private company limited by shares | Live |
| Brainbot Lab Limited | Private company limited by shares | Live |
| BRAINBOW ASIA LIMITED | Private company limited by shares | Dissolved |
| Brainbox Limited | Private company limited by shares | Live |
| BRAINBRIDGE FOREVER INVESTMENT COMPANY LIMITED | Private company limited by shares | Live |
| BRAINBRIDGE INTERNATIONAL CONSULTING CO., LIMITED | Private company limited by shares | Live |
| Brainbridge Japan Property Co. Limited | | Live |
| BrainByte Education Limited | Private company limited by shares | Live |
| BRAINCASTLE LIMITED | Private company limited by shares | Dissolved |
| BRAINCHILD LIMITED | Private company limited by shares | Live |
| Brainchild Holding Limited | Private company limited by shares | Live |
| Brainchild Innovations Limited | | Live |
| BrainCraft Learning Group Limited | Private company limited by shares | Live |
| BRAINDATA LIMITED | Private company limited by shares | Live |
| Brainden International Limited | Private company limited by shares | Live |
| BRAINDO LIMITED | Private company limited by shares | Live |
| Braindom Enterprise Limited | Private company limited by shares | Dissolved |
| BRAINDUCATION LIMITED | Private company limited by shares | Live |
| Brainers Infotech Limited | | Live |
| BRAINET INTERNATIONAL (HONG KONG) LIMITED | Private company limited by shares | Live |
| BRAINEY COMPANY LIMITED | Private company limited by shares | Dissolved |
| BRAINFIELD LIMITED | Private company limited by shares | Live |
| BRAINFIELD ELECTRONICS LIMITED | Private company limited by shares | Dissolved |
| Brainfield Engineering Limited | Private company limited by shares | Live |
| BRAINFIELD ESTATES LIMITED | Private company limited by shares | Dissolved |
| BRAINFIELD TOYS MANUFACTORY CO. LIMITED | Private company limited by shares | Dissolved |
| BRAINFIT LIMITED | Private company limited by shares | Dissolved |