| E. S. WOOD GREEN AIR ENVIRONMENTAL (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| HONG KONG YISA ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Live |
| DEHUNG ENVIRONMENTAL TECHNOLOGY (HONGKONG) LIMITED | Private company limited by shares | Live |
| Wisdom Environmental Technology (HongKong) Limited | Private company limited by shares | Live |
| Hongye Environmental Protection Technology Co., Limited | | Live |
| HONKIE ENVIRONMENTAL LIMITED | Private company limited by shares | Dissolved |
| HUAFUDA ENVIRONMENTAL (H.K.) LIMITED | Private company limited by shares | Dissolved |
| HUANUO ENVIRONMENTAL HEALTH CO., LIMITED | Private company limited by shares | Live |
| HUDSON ENVIRONMENTAL TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Huidu Environmental Technology (Hongkong) Co., Limited | Private company limited by shares | Live |
| HK HUI-MIN ENVIRONMENTAL TECH CORP. LIMITED | Private company limited by shares | Live |
| Huiying Metal Environmental Recycling Co., Limited | | Live |
| Hundred Gain Environmental Protection Limited | Private company limited by shares | Live |
| HYDER ENVIRONMENTAL LIMITED | Private company limited by shares | Dissolved |
| C&S ENVIRONMENTAL HYGIENE LIMITED | Private company limited by shares | Live |
| CHECKERS ENVIRONMENTAL HYGIENE LIMITED | Private company limited by shares | Dissolved |
| Cheuk Yi Environmental Hygiene Limited | | Live |
| CHUNG WO (ENVIRONMENTAL HYGIENE) COMPANY LIMITED | Private company limited by shares | Dissolved |
| Advantage & Effective Environmental Hygiene Consultant Limited | Private company limited by shares | Dissolved |
| GLOBAL HYGIENE AND ENVIRONMENTAL LIMITED | Private company limited by shares | Live |
| LabPro Environmental Hygiene (HK) Limited | Private company limited by shares | Dissolved |
| OK Environmental Protection Hygiene Management Company Limited | | Live |
| SUNBASE ENVIRONMENTAL HYGIENE LIMITED | Private company limited by shares | Live |
| DE SARUS ENVIRONMENTAL HYGIENE SYSTEM LIMITED | Private company limited by shares | Live |
| HYPER-TECH ENVIRONMENTAL LIMITED | Private company limited by shares | Live |
| Ideal Environmental Technology Company Limited | Private company limited by shares | Live |
| INDOOR ENVIRONMENTAL PURIFCATION LIMITED | Private company limited by shares | Live |
| INDOOR ENVIRONMENTAL SOLUTIONS LIMITED | Private company limited by shares | Live |
| China Environmental Industrial Group Limited | Private company limited by shares | Live |
| KUNYU ENVIRONMENTAL INDUSTRIAL (CHINA) LIMITED | Private company limited by shares | Live |
| KA HING INDUSTRIAL ENVIRONMENTAL LIMITED | Private company limited by shares | Live |
| JADWIN (ENVIRONMENTAL PRODUCTS) INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| Wang Lee Environmental Industrial Limited | Private company limited by shares | Live |
| China Environmental Industry Group Co., Limited | Private company limited by shares | Live |
| CHINA ENVIRONMENTAL INDUSTRY INVESTMENT GROUP LIMITED | Private company limited by shares | Live |
| HAILIAN ENVIRONMENTAL INDUSTRY LIMITED | Private company limited by shares | Live |
| TIMES ENVIRONMENTAL INDUSTRY (HK) LIMITED | Private company limited by shares | Dissolved |
| TIMES ENVIRONMENTAL INDUSTRY (HK) LIMITED | Private company limited by shares | Live |
| ENVIRONMENTAL PROTECTION INDUSTRY LIMITED | Private company limited by shares | Dissolved |
| CHINA ENVIRONMENTAL PROTECTION INDUSTRY LIMITED | Private company limited by shares | Dissolved |
| HUAXU ENVIRONMENTAL PROTECTION INDUSTRY CO., LIMITED | Private company limited by shares | Live |
| REED ENVIRONMENTAL INDUSTRY INVESTMENT LIMITED | Private company limited by shares | Live |
| XI'AN LIB ENVIRONMENTAL SIMULATION INDUSTRY LIMITED | Private company limited by shares | Live |
| ENVIRONMENTAL & INFRASTRUCTURE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| InnoGreen Environmental Limited | Private company limited by shares | Live |
| INNOTECH ENVIRONMENTAL LIMITED | Private company limited by shares | Dissolved |
| ENVIRONMENTAL INNOVATION LIMITED | Private company limited by shares | Live |
| Sun Insight Environmental Consultant Co., Limited | | Live |
| INSPIRED ENVIRONMENTAL TECHNOLOGY LIMITED | | Live |
| R & D ENVIRONMENTAL INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| NEW ENVIRONMENTAL INTERNATIONAL LIMITED | Private company limited by shares | Live |
| ENVIRONMENTAL INTERNATIONAL LIMITED | Private company limited by shares | Live |
| YAO HUA ENVIRONMENTAL INTERNATIONAL LIMITED | Private company limited by shares | Live |
| INTERVEST ENVIRONMENTAL INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| FU AN SI ENVIRONMENTAL INT'L LIMITED | Private company limited by shares | Dissolved |
| TBS ENVIRONMENTAL BIO-TECH (INT'L) LIMITED | Private company limited by shares | Dissolved |
| ZHILIAN INT'L ENVIRONMENTAL PROTECTION (HK) INVESTMENT LIMITED | Private company limited by shares | Live |
| PARKING ENVIRONMENTAL INT'L INVESTMENT CO., LIMITED | Private company limited by shares | Live |
| Environmental Investment Limited | Private company limited by shares | Live |
| Berlinaqua Environmental Investment Limited | Private company limited by shares | Live |
| Canves Environmental Investment Company Limited | Private company limited by shares | Live |
| NJU Environmental Investment (HK) Corporation Limited | Private company limited by shares | Live |
| DONGGUAN ENVIRONMENTAL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| HK YU MING ENVIRONMENTAL INVESTMENT LIMITED | Private company limited by shares | Live |
| HUA ZHANG ENVIRONMENTAL RESOURCES INVESTMENT LIMITED | Private company limited by shares | Live |
| ECO Environmental Investments Limited | Private company limited by shares | Live |
| I.T. ENVIRONMENTAL INTERNATIONAL LIMITED | Private company limited by shares | Live |
| Fortune Jade Environmental Technology Limited | Private company limited by shares | Live |
| Jade Environmental Protection Technology Limited | Private company limited by shares | Live |
| JiangSu Jinsheng Environmental Protection Tableware Limited | | Live |
| JIANGSU SK ENVIRONMENTAL TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| JIANZHONG ENVIRONMENTAL SAVING LIMITED | Private company limited by shares | Live |
| JINFENG ENVIRONMENTAL PROTECTION LIMITED | Private company limited by shares | Live |
| BEI JING FIREFIGHTING AND GREEN ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Live |
| Lan Jing Environmental Protection Co., Limited | | Live |
| JING RUN MARITIME ENVIRONMENTAL TECHNOLOGY LIMITED | Private company limited by shares | Live |
| JINLONGWANG ENVIRONMENTAL PROTECTION TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| TER JINN ENVIRONMENTAL TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| Johnson Environmental Company Limited | Private company limited by shares | Live |
| JOSEPH NOVA ENVIRONMENTAL TECHNOLOGY LIMITED | Private company limited by shares | Live |
| KARDI Environmental Technology Limited | | Live |
| Keyi Environmental Protection Tableware Co., Limited | Private company limited by shares | Live |
| Kingcloth Environmental Technology Limited | Private company limited by shares | Live |
| KINGSFORD ENVIRONMENTAL INTERNATIONAL LIMITED | Private company limited by shares | Live |
| Kingsun Environmental Protection (HK) Technology Limited | Private company limited by shares | Live |
| UK Kiverco (Hong Kong) Environmental Technology Limited | | Live |
| KLEAN-TECH ENVIRONMENTAL LIMITED | Private company limited by shares | Dissolved |
| KOREA HESHUN ENVIRONMENTAL PROTECTION AND TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Kowloon Environmental Supply Limited | | Live |
| KOYO ENVIRONMENTAL BIOSCIENCE (HK) LIMITED | Private company limited by shares | Live |
| KWAN YU ENVIRONMENTAL PROTECTION LIMITED | Private company limited by shares | Dissolved |
| HK OCEAN & LAND ENVIRONMENTAL TECHNOLOGY LIMITED | Private company limited by shares | Live |
| LAWN ENVIRONMENTAL PROTECTION LIMITED | Private company limited by shares | Live |
| LEE'S ENVIRONMENTAL COMPANY LIMITED | | Live |
| GUANGDONG LEJIA ENVIRONMENTAL VENTILATION EQUIPMENT LIMITED | Private company limited by shares | Live |
| LEON ENVIRONMENTAL LIMITED | Private company limited by shares | Live |
| Life Protection Environmental Technology Limited | Private company limited by shares | Live |
| HONEST LIFE ENVIRONMENTAL TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| O Tin Environmental Lighting Limited | Private company limited by shares | Live |
| FORTUNE ENVIRONMENTAL LED LIGHTING LIMITED | Private company limited by shares | Dissolved |