| FB Enterprises Limited | Private company limited by shares | Dissolved |
| JHL ENGINEERING LIMITED | Private company limited by shares | Live |
| WAH YANG ENERGY (JINCHENG) LIMITED | Private company limited by shares | Dissolved |
| Hong Kong Children Ensemble Limited | Private company limited by shares | Dissolved |
| SUN MING ENVIRONMENTAL RECYCLING LIMITED | Private company limited by shares | Live |
| WELLDO STRONG ENGINEERING LIMITED | Private company limited by shares | Live |
| Zhong'an Energy Group Limited | Private company limited by shares | Live |
| Environmental Technologies Foundation Limited | Company limited by guarantee | Live |
| USA HAFU ENGINE INT'L GROUP LIMITED | Private company limited by shares | Dissolved |
| HUNTER ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| HONGKONG ENJOY FUR AND LEATHER LIMITED | Private company limited by shares | Live |
| PAKCO ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| PACIFIC ENGINEERING PRODUCTION LIMITED | Private company limited by shares | Dissolved |
| ARMEKA ENGINEERING (HONG KONG) LIMITED | Private company limited by shares | Live |
| ENVIROGREEN ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| MINGXING TECHNOLOGY ENTERPRISE LIMITED | Private company limited by shares | Live |
| M&H Engineering Limited | Private company limited by shares | Live |
| TRINITY DRAGON ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SUNSPRO ENGINEERING LIMITED | Private company limited by shares | Live |
| CHEK YUET (ENVIRONMENT) ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| MZW ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| WING HING SCAFFOLDING ENGINEERING LIMITED | Private company limited by shares | Live |
| TPC Environmental System Company Limited | Private company limited by shares | Dissolved |
| BEST EASTERN ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| LFG ENERGY CONSERVATION INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| V.M. ENGINEERING (HONG KONG) CO., LIMITED | Private company limited by shares | Dissolved |
| DRAGON GAIN ENTERPRISES LIMITED | Private company limited by shares | Live |
| UHI ENERGY TRANSPORTATION LIMITED | Private company limited by shares | Live |
| ACV ENTERPRISES LIMITED | Private company limited by shares | Live |
| MOCHA ENTERPRISE LIMITED | Private company limited by shares | Live |
| SKY VALVES ENTERPRISE LIMITED | Private company limited by shares | Live |
| HK SHUNCHENG CERAMICS ENTERPRISE GROUP LIMITED | Private company limited by shares | Live |
| FU LAM ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| HAIZHOU MARINE SERVICE & ENGINEERING LIMITED | Private company limited by shares | Live |
| HANG ON CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| FLIGHT ENVELOPE TEAM LIMITED -THE- | Private company limited by shares | Dissolved |
| Marsh Wind Energy Limited | Private company limited by shares | Dissolved |
| COSMOPOLITAN ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| D.C ENGINEERING LIMITED | Private company limited by shares | Live |
| BAUHINIA ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| Honor Success Engineering Limited | Private company limited by shares | Dissolved |
| TALENT CENTRE ENTERPRISE LIMITED | Private company limited by shares | Live |
| UTL ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| EVER SUCCESS ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| CITIRICH ENGINEERING LIMITED | Private company limited by shares | Live |
| C3 CELLULAR ENGINEERING CO., LIMITED | Private company limited by shares | Dissolved |
| GOODWILL E & M ENGINEERING LIMITED | Private company limited by shares | Live |
| Kai Kee Environment Re-cycling Company Limited | Private company limited by shares | Dissolved |
| Global Environment Access Holdings Limited | Private company limited by shares | Dissolved |
| BEYOND BEST ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| MING TAI ENTERPRISE LIMITED | Private company limited by shares | Live |
| BROTHER ENVIRONMENTAL PROTECTION COMPANY LIMITED | Private company limited by shares | Live |
| HK HAIER SOLAR ENERGY GROUP LIMITED | Private company limited by shares | Dissolved |
| ENTHEOS LIMITED | Private company limited by shares | Dissolved |
| Wang Yuen Environmental Company Limited | Private company limited by shares | Dissolved |
| MAN YU ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| Trustful Engineering & Construction Company Limited | Private company limited by shares | Live |
| HIGHER ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| BEST VIEW ENTERPRISE LIMITED | Private company limited by shares | Live |
| ENDELEY COMPANY LIMITED | Private company limited by shares | Dissolved |
| Bokeen Engineering Limited | Private company limited by shares | Live |
| SMART STAR ENGINEERING LIMITED | Private company limited by shares | Live |
| SUN FAT ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| ASIAN ENCOUNTERS LIMITED | Company limited by guarantee | Live |
| CENTURY ENTERPRISE CONSULTANCY LIMITED | Private company limited by shares | Dissolved |
| EVERBRIGHT AIR-CONDITION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SHENZHEN KAMADUO GROUP SOLAR ENERGY LIMITED | Private company limited by shares | Dissolved |
| ENCORE ELECTRONIC ENGINEERING LIMITED | Private company limited by shares | Live |
| ENVLITE ENVIRONMENT HONG KONG COMPANY LIMITED | Private company limited by shares | Dissolved |
| C. S. ENLIFE COMPANY LIMITED | Private company limited by shares | Dissolved |
| ESWN Engineering Studio Limited | Private company limited by shares | Live |
| TRADEWELL ENTERPRISES HK LIMITED | Private company limited by shares | Dissolved |
| KANGSHIFU (ENTERPRISE) GROUP LIMITED | Private company limited by shares | Dissolved |
| FIRST MAX ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| CHINA ENTRYPOINT LIMITED | Private company limited by shares | Dissolved |
| MANTEN ENTERPRISES LIMITED | Private company limited by shares | Live |
| LEE MAN ENGINEERING LIMITED | Private company limited by shares | Live |
| TIN NGAI ENGINEERING CO LIMITED | Private company limited by shares | Live |
| Future E & M Engineering Company Limited | Private company limited by shares | Live |
| PAK HING ENGINEERING LIMITED | Private company limited by shares | Live |
| KA YUET DESIGN ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| GLOBAL VICTOR ENTERPRISES LIMITED | Private company limited by shares | Live |
| WANG FAT ENGINEERING CONSTRUCTION LIMITED | Private company limited by shares | Dissolved |
| YY ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| GAINBERG ENTERPRISE COMPANY LIMITED | Private company limited by shares | Live |
| LUCK RICH ENGINEERING LIMITED | Private company limited by shares | Live |
| WELL EASY ENGINEERING LIMITED | Private company limited by shares | Live |
| RICH SMART ENGINEERING LIMITED | Private company limited by shares | Live |
| EASY ON ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| ACADEMIC ENHANCER LIMITED | Private company limited by shares | Dissolved |
| RUN XI ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| GOOD ENGINEERING LIMITED | Private company limited by shares | Live |
| SUN CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| ENDURA LIMITED | Private company limited by shares | Dissolved |
| SUN WAI ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| ORKNEY ENVIRONMENTAL ENERGY LIMITED | Private company limited by shares | Dissolved |
| ELM Engineering Asia Co., Limited | Private company limited by shares | Live |
| PEACY ENTERPRISE LIMITED | Private company limited by shares | Live |
| CYBER FULL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| KIN ON ENGINEERING LIMITED | Private company limited by shares | Live |