| WORLD MAC-SYSTEM INSTITUTE OF EDUCATION LIMITED | Private company limited by shares | Dissolved |
| WORLD ENERGY INSTITUTE CO., LIMITED | Private company limited by shares | Live |
| World Cosmic Energy Education Institute Limited | Private company limited by shares | Live |
| World Institute For Facilitation Limited | Private company limited by shares | Live |
| WORLD INSTITUTE OF FENGSHUI LIMITED | Private company limited by shares | Live |
| WORLD FAMILY FILM INSTITUTE LIMITED | | Live |
| WORLD HERITAGE INSTITUTE LIMITED | Company limited by guarantee | Dissolved |
| WORLD HO'S CALLIGRAPHIC ART INSTITUTE LIMITED | Private company limited by shares | Live |
| World Industry Alliance Art Institute Limited | Private company limited by shares | Live |
| World Leader Institute Limited | Private company limited by shares | Live |
| NEW WORLD LIFE EDUCATION INSTITUTE LIMITED | Private company limited by shares | Live |
| World Life Science Institute Holdings Limited | Private company limited by shares | Live |
| World Institute of Life & Love Limited | Private company limited by shares | Live |
| WORLD INSTITUTE OF LIFE SCIENCE HK LIMITED | Private company limited by shares | Live |
| New World Institute of Management Limited | Private company limited by shares | Live |
| WORLD BUSINESS MANAGEMENT INSTITUTE LIMITED | Private company limited by shares | Live |
| World Class Science And Management Institute Limited | Private company limited by shares | Live |
| WORLD INSTITUTE OF KNOWLEDGE MANAGEMENT CO., LIMITED | Private company limited by shares | Live |
| WORLD INSTITUTE OF TRADITIONAL CHINESE MEDICINES LIMITED -THE- | Private company limited by shares | Dissolved |
| World Mission Research Institute Limited | Private company limited by shares | Live |
| World Carbon Neutral Research Institute Limited | Private company limited by shares | Live |
| World Peace Research Institute Co., Limited | Private company limited by shares | Live |
| World Metaverse Research Institute Co., Limited | | Live |
| WORLD ORTHOPAEDIC RESEARCH INSTITUTE LIMITED -THE- | Private company limited by shares | Dissolved |
| WORLD RESOURCES INSTITUTE LIMITED | Company limited by guarantee | Dissolved |
| WORLD ROBOT RESEARCH INSTITUTE LIMITED | Private company limited by shares | Live |
| INSTITUTE ON STUDY OF WORLD FOLK RELIGIONS LIMITED | Company limited by guarantee | Dissolved |
| WORLD INSTITUTE OF SUSTAINABLE DEVELOPMENT PLANNERS LIMITED | Company limited by guarantee | Live |
| WORLD TAEKWONDO INSTITUTE LIMITED | Private company limited by shares | Live |
| INSTITUTE OF WORLD TAIJI COMPANY LIMITED -THE- | Private company limited by shares | Live |
| WORLD ZHANGSHANG CULTURE INSTITUTE LIMITED | Private company limited by shares | Live |
| World's Innovation Institute Limited | Company limited by guarantee | Live |
| WUDANG INSTITUTE LIMITED | Private company limited by shares | Dissolved |
| CHINA WUDANG DAO MEDICAL RESEARCH INSTITUTE LIMITED | Private company limited by shares | Live |
| Wu-Wei Research Institute Limited | Private company limited by shares | Live |
| Wuyishan Tea Research Institute Co., Limited | | Live |
| China WUZIXU Research Institute Limited | Private company limited by shares | Live |
| Xevarion Institute Company Limited -The- | Private company limited by shares | Live |
| BAI XIAN ASIA INSTITUTE LIMITED | Company limited by guarantee | Live |
| China Xiangxue Research Institute Limited | Private company limited by shares | Live |
| XIAOXIANG ARTS INSTITUTE LIMITED | Private company limited by shares | Live |
| CHINA XIAQINGSU INDUSTRY RESEARCH INSTITUTE LIMITED | Private company limited by shares | Live |
| Xiehe International Immunity & Longevity Research Institute Limited | Private company limited by shares | Live |
| XiLeng Art Research Institute Co., Limited | Private company limited by shares | Live |
| CHINA JUN XING ART INSTITUTE CO., LIMITED | Private company limited by shares | Dissolved |
| CHINA TAO XINGZHI RESEARCH INSTITUTE CO., LIMITED | Private company limited by shares | Dissolved |
| CHINESE YIXUE XUANXUE INSTITUTE., LIMITED | Private company limited by shares | Live |
| CHINESE YANCHA INSTITUTE LIMITED | Private company limited by shares | Live |
| CHINA YANGSHENG RESEARCH INSTITUTE LIMITED | Private company limited by shares | Live |
| Wangshi Yanxuan Institute Limited | Private company limited by shares | Live |
| BAMA YAOYIYAOYAO RESEARCH INSTITUTE LIMITED | Private company limited by shares | Live |
| CHI YEUNG INSTITUTE LIMITED -THE- | Company limited by guarantee | Live |
| CHINA YIJI EDUCATION INSTITUTE GROUP LIMITED | Private company limited by shares | Dissolved |
| CHINA YIJING RESEARCH INSTITUTE LIMITED | Private company limited by shares | Dissolved |
| China Yijing Research Institute Company Limited | Private company limited by shares | Live |
| CHINA GEOGRAPHIC HK YIJING RESEARCH INSTITUTE LIMITED | Private company limited by shares | Live |
| CHINA YIJING LEARN RESEARCH INSTITUTE LIMITED | Private company limited by shares | Live |
| YINJIANG INTERNATIONAL INSTITUTE OF ARCHITECTURAL TECHNOLOGY LIMITED | Private company limited by shares | Live |
| KAI CHI YOGA INSTITUTE COMPANY LIMITED | Private company limited by shares | Dissolved |
| CHINA YOGA INSTITUTE CO., LIMITED | Private company limited by shares | Live |
| China Yoga Research Institute Co., Limited | Private company limited by shares | Live |
| CHINA-INDIA YOGA INSTITUTE CO., LIMITED | Private company limited by shares | Live |
| JIANGSHUFANG TIANREN YOGA EDUCATION INSTITUTE LIMITED | Private company limited by shares | Live |
| YOUJIA CHILDREN PHYSICAL HEALTH INSTITUTE LIMITED | Private company limited by shares | Live |
| CHINA INSTITUTE FOR YOUTH STRENGTHS DEVELOPMENT LIMITED | Company limited by guarantee | Live |
| Hong Kong Institute of Youth Education Limited | 擔保有限公司 | Live |
| Zhejiang Institute Of Modern Youth Limited | Private company limited by shares | Live |
| INSTITUTE OF YOUXU BUSINESS LIMITED | Private company limited by shares | Live |
| CHINA YSTY BIOLOGICAL SCIENCES RESEARCH INSTITUTE COMPANY LIMITED | Private company limited by shares | Live |
| Yuandong Life Research Institute Limited | | Live |
| YUEGANGAODAWANQU VOCATIONAL EDUCATION RESEARCH INSTITUTE LIMITED | Private company limited by shares | Live |
| YUEN YUEN INSTITUTE -THE- | Company limited by guarantee | Live |
| ZENJOY INTERNATIONAL YOGA INSTITUTE LIMITED | Private company limited by shares | Live |
| ZERO SYMBOL INSTITUTE LIMITED | Private company limited by shares | Live |
| Zeta Research Institute Limited | Private company limited by shares | Live |
| CHINA ZHEJIANG EDUCATION INSTITUTE CO., LIMITED | Private company limited by shares | Live |
| China Zhejiang Merchants Research Institute Limited | Private company limited by shares | Live |
| CHINA ZHENGHE CULTURE RESEARCH INSTITUTE LIMITED | Private company limited by shares | Dissolved |
| Luo Zhewen Institute Of Ancient Architecture Co., Limited | | Live |
| ZHIJU TRIBUTE TEA INSTITUTE CO. LIMITED | Private company limited by shares | Dissolved |
| ZHITONG TAX BUSINESS INSTITUTE LIMITED | Private company limited by shares | Live |
| ZHIYONG CULTURE INSTITUTE LIMITED | Private company limited by shares | Live |
| ZHONG CHUANG HUA YIN INSTITUTE CO., LIMITED | Private company limited by shares | Live |
| HK Zhong Hua Business Institute Co., Limited | Private company limited by shares | Live |
| CHINA ZHONG CHUANG NEW ENERGY RESEARCH INSTITUTE LIMITED | Private company limited by shares | Dissolved |
| ZHONG WEI FAME RESEARCH INSTITUTE LIMITED | Private company limited by shares | Live |
| ZHONG HUA GUO XUE INSTITUTE GROUP LIMITED | Private company limited by shares | Live |
| Hong Kong Zhong Yi Wealth Institute Limited | Private company limited by shares | Dissolved |
| Zhong Shi Art Research Institute Limited | Private company limited by shares | Live |
| ZHONG SHAN ART RESEARCH INSTITUTE LIMITED | Private company limited by shares | Live |
| Zhong Di ShanCheng Spatial Planning & Design Institute Limited | Private company limited by shares | Live |
| Zhonghua Air Bible Research Institute Limited | Private company limited by shares | Live |
| RESEARCH INSTITUTE OF ZHONGHUA HAN PU PAINTING AND CALLIGRAPHY LIMITED | Private company limited by shares | Live |
| ZHONGHUA ICHING FENGSHUI RESEARCH INSTITUTE LIMITED | Private company limited by shares | Live |
| Zhonghua Guoxue Research Institute Limited | Private company limited by shares | Live |
| ZHONGHUA TONGREN BONE INJURIES INSTITUTE LIMITED | Private company limited by shares | Live |
| HK ZHONGMEI ARCHITECTURAL ORNAMENT RESEARCH INSTITUTE LIMITED | Private company limited by shares | Live |
| ZHONGMEIOUYA INSTITUTE OF SCIENCE AND TECHNOLOGY CO., LIMITED | | Live |
| China ZhongMou Environmental Art Research Institute Limited | Private company limited by shares | Live |
| HK ZHONGXIN FINANCE RESEARCH INSTITUTE CO., LIMITED | Private company limited by shares | Live |