| SAI KUNG TSEUNG KWAN O ENVIRONMENTAL ASSOCIATION LIMITED | Company limited by guarantee | Live |
| TSUENYE ENVIRONMENTAL LIMITED | Private company limited by shares | Dissolved |
| Lik Tung Environmental Company Limited | Private company limited by shares | Live |
| TUNG KONG ENVIRONMENTAL LIMITED | Private company limited by shares | Live |
| U-BORNE ENVIRONMENTAL LIMITED | Private company limited by shares | Live |
| Ultimate Environmental Equipment Limited | Private company limited by shares | Live |
| ULTRA CLEAN ENVIRONMENTAL PROTECTION TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| UNIPURE ENVIRONMENTAL LIMITED | Private company limited by shares | Live |
| UNITED ENVIRONMENTAL COMPANY LIMITED | Private company limited by shares | Live |
| GLORY UNITED ENVIRONMENTAL CLEANING CO., LIMITED | Private company limited by shares | Dissolved |
| UNITED ENVIRONMENTAL ENGINEERS LIMITED | Private company limited by shares | Dissolved |
| UNITED ENVIRONMENTAL NETWORK, INC. LIMITED | Private company limited by shares | Dissolved |
| UNITED VICTORY ENVIRONMENTAL TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| UNIVERSAL ENVIRONMENTAL ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| UNIVERSAL ENVIRONMENTAL ENTERPRISE LIMITED | Private company limited by shares | Live |
| UNIVERSAL ENVIRONMENTAL ENTERPRISE LIMITED | Private company limited by shares | Live |
| Universal Environmental Technology Limited | Private company limited by shares | Live |
| Universal Environmental Technology China Limited | Private company limited by shares | Live |
| VABELLA ENVIRONMENTAL PARTNERS LIMITED | Private company limited by shares | Live |
| ZHONGXING VANNEX ENVIRONMENTAL PROTECTION LIMITED | Private company limited by shares | Live |
| VASPLEX MOTOR ENVIRONMENTAL TECHNOLOGY LIMITED | Private company limited by shares | Live |
| VAST WISDOM ENVIRONMENTAL LIMITED | Private company limited by shares | Dissolved |
| Vastsources Environmental Limited | Private company limited by shares | Live |
| VERDE ENVIRONMENTAL INTERNATIONAL CORPORATION LIMITED | Private company limited by shares | Dissolved |
| VESON ENVIRONMENTAL EQUIPMENT LIMITED | Private company limited by shares | Live |
| VIRIDIS ENVIRONMENTAL TECHNOLOGY LIMITED | Private company limited by shares | Live |
| VISION ENVIRONMENTAL LIMITED | Private company limited by shares | Live |
| Vision Environmental H.K Limited | | Live |
| Wack Environmental Consulting Limited | Private company limited by shares | Live |
| CHINA WANCI ENVIRONMENTAL GROUP LIMITED | Private company limited by shares | Live |
| WANDX Environmental HK Limited | | Live |
| Wang Yuen Environmental Company Limited | Private company limited by shares | Dissolved |
| Waste & Environmental Consultancy Limited | Private company limited by shares | Live |
| ENVIRONMENTAL WASTE MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| ENVIRONMENTAL WASTE SOLUTIONS INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| WATFIELD ENVIRONMENTAL LIMITED | Private company limited by shares | Live |
| WATSON ENVIRONMENTAL MANAGEMENT LIMITED | Private company limited by shares | Live |
| ECO WAVE ENVIRONMENTAL HK LIMITED | Private company limited by shares | Dissolved |
| WELL TEAM ENVIRONMENTAL COMPANY LIMITED | Private company limited by shares | Live |
| RABBIT WHITE Environmental Quality Management Co Limited | Private company limited by shares | Live |
| WING KAY ENVIRONMENTAL LIMITED | Private company limited by shares | Live |
| Wing Lei Environmental Limited | | Live |
| Wing Ming Environmental Limited | Private company limited by shares | Live |
| Winpack Environmental Limited | Private company limited by shares | Live |
| WONDERFUL ENVIRONMENTAL TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| NRG ENVIRONMENTAL WORKS COMPANY LIMITED | Private company limited by shares | Dissolved |
| WORLDCO ENVIRONMENTAL LIMITED | Private company limited by shares | Dissolved |
| XIANAIER ENVIRONMENTAL PROTECTION TECHNOLOGY GROUP LIMITED | Private company limited by shares | Live |
| HK XINQIU ENVIRONMENTAL SCI-TECH LIMITED | Private company limited by shares | Live |
| XINYUAN ENVIRONMENTAL HK LIMITED | Private company limited by shares | Live |
| HAN YANG ENVIRONMENTAL (HK) LIMITED | Private company limited by shares | Live |
| NEW KAM YEUNG ENVIRONMENTAL TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Ying Sui Environmental Cleaning Co. Limited | | Live |
| Ying Po Environmental Logistic Limited | Private company limited by shares | Live |
| YING FAI ENVIRONMENTAL RECLYCLE CO LIMITED | Private company limited by shares | Dissolved |
| YING SUN ENVIRONMENTAL TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| YING HEI ENVIRONMENTAL TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Lan Yixiang Environmental Protection Technology Co., Limited | Private company limited by shares | Live |
| Yonker Environmental Protection (HK) Limited | Private company limited by shares | Live |
| YOUNG ENVIRONMENTAL SYSTEMS COMPANY LIMITED | Private company limited by shares | Dissolved |
| BAO YI YUAN ENVIRONMENTAL LIMITED | Private company limited by shares | Live |
| Yuan Xin Environmental Protection Ceramics Co., Limited | Private company limited by shares | Live |
| YU YUAN GREENING & ENVIRONMENTAL PROTECTION COMPANY LIMITED | Private company limited by shares | Dissolved |
| JIA YUAN ENVIRONMENTAL PROTECTION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| HK SAN YUAN TECHNOLOGY ENVIRONMENTAL PROTECTION EQUIPMENT LIMITED | Private company limited by shares | Live |
| Zenior Environmental Cleaning Service Limited | | Live |
| Zenki Environmental Landscaping Company Limited | Private company limited by shares | Live |
| ONE ZERO ONE ENVIRONMENTAL PROTECTION TECHNOLOGY (INTERNATIONAL) LIMITED | Private company limited by shares | Dissolved |
| Yu Zhan Environmental Protection Technology (HK) Limited | Private company limited by shares | Live |
| ZHONGDIAN-SUNSHINE ENVIRONMENTAL TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| ZHONGHUA GREEN NET ENVIRONMENTAL TECHNOLOGY LIMITED | Private company limited by shares | Live |
| ZHONGHUA CROSS-STRAIT ENVIRONMENTAL PROTECTION ASSOCIATION LIMITED | Private company limited by shares | Live |
| NEW CENTURY ENVIRONMENTAL REFORM ZHONGJING CITY LIMITED | Private company limited by shares | Live |
| ZHONGSHAN ENVIRONMENTAL CORPORATION LIMITED | Private company limited by shares | Live |
| ZONHR ENVIRONMENTAL PROTECTION STOCK CO., LIMITED | Private company limited by shares | Live |
| HK ZONSEN ENVIRONMENTAL PROTECTION TECHNOLOGY CO. LIMITED | Private company limited by shares | Live |
| ENVIRONMENTALCARE LIMITED | Private company limited by shares | Live |
| CHARTERED ENVIRONMENTALIST LIMITED | Private company limited by shares | Dissolved |
| Global Environmentalist Leadership Assembly Limited | Private company limited by shares | Live |
| HONG KONG ENVIRONMENTALIST QUALITY FISHERY CO. LIMITED | Private company limited by shares | Live |
| HONG KONG ENVIRONMENTALIST RECYCLING FACTORY LIMITED | Private company limited by shares | Live |
| RUNZE ENVIRONMENTALIST INDUSTRIAL GROUP LIMITED | Private company limited by shares | Live |
| INSTITUTION OF ENVIRONMENTALISTS LIMITED | Company limited by guarantee | Live |
| TU SHENG JIN ENVIRONMENTALPROTECTION INDUSTRY LIMITED | Private company limited by shares | Live |
| KEY ENVIRONMENTALS LIMITED | Private company limited by shares | Dissolved |
| Sinotech International Environment-logistics Services Limited | Private company limited by shares | Live |
| ENVIRONNEMENT LIMITED | Private company limited by shares | Live |
| Environnement Hong Kong Limited | Private company limited by shares | Live |
| SEN ENVIRONNEMENT INTERNATIONAL LIMITED | Private company limited by shares | Live |
| ENVIRONS LIMITED | Private company limited by shares | Dissolved |
| ENVIRONS COMPANY LIMITED | Private company limited by shares | Live |
| ENVIRON-TECH COMPANY LIMITED | Private company limited by shares | Dissolved |
| ENVIRONTECH LIMITED | Private company limited by shares | Dissolved |
| China Dynamics Environtech (Beijing) Company Limited | Private company limited by shares | Live |
| China Dynamics Environtech (Jiangxi) Company Limited | Private company limited by shares | Live |
| FORTUNE ENVIRONTECH COMPANY LIMITED | Private company limited by shares | Dissolved |
| FORTUNE ENVIRONTECH COMPANY LIMITED | Private company limited by shares | Live |
| LONGO ENVIRONTECH (HONG KONG) CO., LIMITED | Private company limited by shares | Live |
| WYZZ ENVIRONTECH LIMITED | Private company limited by shares | Dissolved |
| ENVIROPACE LIMITED | Private company limited by shares | Dissolved |