| SUNSHINE ENVIRONMENTAL ENERGY LIMITED | | Live |
| ENERGY & ENVIRONMENTAL TECHNOLOGIES CO. LIMITED | Private company limited by shares | Dissolved |
| NEW ENERGY ENVIRONMENTAL TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Lee Tak Environmental Energy Technology Limited | | Live |
| NEW ENERGY ENVIRONMENTAL TECHNOLOGY (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| KK TECHNOLOGY OF ENVIRONMENTAL AND ENERGY SAVING LIMITED | Private company limited by shares | Dissolved |
| Winbase Energy Environmental Technology Limited | Private company limited by shares | Live |
| TECHSOURCE ENERGY & ENVIRONMENTAL CORPORATION LIMITED | Private company limited by shares | Live |
| W.Y. ENVIRONMENTAL ENERGY LIMITED | | Live |
| DNG ENERGYSAVING ENVIRONMENTAL GROUP LIMITED | Private company limited by shares | Dissolved |
| Yiu Shin Environmental Engagement Co Limited | Private company limited by shares | Live |
| TAI KEE ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| BIS ENVIRONMENTAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| KIT SUN ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| KAN KEE ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Live |
| TIN HA ENVIRONMENTAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| GAS ENVIRONMENTAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| H Q Environmental Engineering Limited | Private company limited by shares | Dissolved |
| Tak Po Environmental Engineering Limited | Private company limited by shares | Live |
| JPH ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Live |
| LCC ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Live |
| TAI TAT ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Live |
| KLP Environmental Engineering Limited | Private company limited by shares | Live |
| Tai Ran Environmental Engineering Company Limited | Private company limited by shares | Live |
| CF ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Live |
| ACE ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Live |
| ADVANCED ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Live |
| AMOCO ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| Apollo Environmental Engineering Company Limited | Private company limited by shares | Live |
| AQUA ENVIRONMENTAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| ASIA ENVIRONMENTAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| New Asia Environmental Engineering Company Limited | Private company limited by shares | Live |
| ATAL ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Live Commenced dormancy on 07-Nov-2000 |
| ATOLL ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| Bliss Environmental Engineering Limited | Private company limited by shares | Live |
| BLUET ENVIRONMENTAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| Win Charm Environmental Engineering Company Limited | Private company limited by shares | Live |
| CHINA ENVIRONMENTAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| Best Environmental Engineering (China) Limited | Private company limited by shares | Live |
| ENVIRONMENTAL ENGINEERING (CHINA) CO., LIMITED | Private company limited by shares | Live |
| CHINA KINGTOP ENVIRONMENTAL ENGINEERING GROUP LIMITED | Private company limited by shares | Dissolved |
| Wah Chit Environmental Engineering Co Limited | | Live |
| CHUNG TIN ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Live |
| CHUNG FAI ENVIRONMENTAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| CHUNG TAI ENVIRONMENTAL EQUIPMENT ENGINEERING LIMITED | Private company limited by shares | Live |
| DAH DI ENVIRONMENTAL ENGINEERING CO., LIMITED | Private company limited by shares | Dissolved |
| YUE YI ENVIRONMENTAL ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| CG Environmental Engineering Co., Limited | | Live |
| BIO-ETAS ENVIRONMENTAL ENGINEERING CO., LIMITED | Private company limited by shares | Dissolved |
| Sun Solar Environmental & Engineering Co., Limited | Private company limited by shares | Live |
| Yong An Environmental Engineering Co., Limited | Private company limited by shares | Live |
| ENVIRONMENTAL CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| ENVIRONMENTAL ENGINEERING CONSTRUCTION COMPANY INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| ENVIRONMENTAL ENGINEERING & CONSULTANCY LIMITED | Private company limited by shares | Dissolved |
| CH ENVIRONMENTAL ENGINEERING CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| WEC Environmental Engineering Consultants Limited | Private company limited by shares | Live |
| Countercurrent Environmental Engineering Limited | Private company limited by shares | Live |
| CREATIVE ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SUM MAN ENVIRONMENTAL DEMOLITION ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| MEIAO ENVIRONMENTAL ART DESIGN & ENGINEERING (HK) LIMITED | Private company limited by shares | Dissolved |
| ENVIRONMENTAL DRAGON ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| EASTERN ENVIRONMENTAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| TOP ELEGANCE ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| TOP ELEGANCE ENVIRONMENTAL ENGINEERING (HK) LIMITED | Private company limited by shares | Dissolved |
| ELEMENT ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Live |
| EVER SEND ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| Evergena Environmental Filtration Engineering Limited | Private company limited by shares | Live |
| Everich Environmental Engineering Limited | | Live |
| ENVIRONMENTAL FACILITY ENGINEERING LIMITED | | Live |
| RICH FOCUS ENVIRONMENTAL ENGINEERING EQUIPMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| Frontier Environmental Engineering Co. Limited | Private company limited by shares | Live |
| GLOBAL ENVIRONMENTAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| GLOBAL ENVIRONMENTAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| GLOBAL ASIA ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| GLOBAL ENVIRONMENTAL TECHNOLOGY ENGINEERING LIMITED | Private company limited by shares | Live |
| GREENIE ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Live |
| HALE ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| HARBOUR ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Live |
| HARMONY ENVIRONMENTAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| MAN HING ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Live |
| HYPER-TECH ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Live |
| KINGSNIC INDUSTRIAL AND ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Live |
| NEW TECHNOLOGY ENVIRONMENTAL INDUSTRIAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| InnoGreen Environmental Engineering Limited | Private company limited by shares | Dissolved |
| INNOVHUB ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Live |
| TAT KEUNG ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Live |
| KINGSFORD ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Live |
| KITAGAWA ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| LEADER ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Live |
| LEGEND ENVIRONMENTAL ENGINEERING LIMITED | Private company limited by shares | Live |
| Liden Environmental Engineering Co. Limited | Private company limited by shares | Live |
| MAIN FOREST ENVIRONMENTAL EQUIPMENT AND ENGINEERING CO. LIMITED | Private company limited by shares | Live |
| JX ENGINEERING AND ENVIRONMENTAL MANAGEMENT LIMITED | Private company limited by shares | Live |
| CHINA EVERBRIGHT ENVIRONMENTAL ENGINEERING MANAGEMENT LIMITED | Private company limited by shares | Live |
| Master Environmental Engineering Limited | | Live |
| WIN MERIT ENVIRONMENTAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| M.Y. CHENG ENGINEERING (ENVIRONMENTAL) LIMITED | Private company limited by shares | Live |
| Orient Environmental Engineering Co. Limited | Private company limited by shares | Live |
| Poly Environmental Science And Engineering Limited | | Live |
| HYDROTECH ENVIRONMENTAL ENGINEERING & PRODUCTS LIMITED | Private company limited by shares | Dissolved |