| SPECHANICS ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| NATIONSTAR ENTERPRISE CO., LIMITED | Private company limited by shares | Live |
| EC CENTURY ENVIRONMENTAL COMPANY LIMITED | Private company limited by shares | Live |
| USA SHIKANG ENGINE PARTS CO., LIMITED | Private company limited by shares | Live |
| Turgot Energy Limited | Private company limited by shares | Live |
| SKYFORD ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| Endong International Investment Co., Limited | Private company limited by shares | Live |
| AGC ENERGY LIMITED | Private company limited by shares | Dissolved |
| RenTian Engineering Acting Limited | Private company limited by shares | Dissolved |
| WELLING ENGINEERING LIMITED | Private company limited by shares | Live |
| Pathbreaker Engineering Limited | Private company limited by shares | Dissolved |
| ENTAI INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| KOW YUEN ENTERPRISE COMPANY LIMITED | Private company limited by shares | Dissolved |
| ANTEPA ENGINEERING LIMITED | Private company limited by shares | Live |
| WINIC ENGINEERING LIMITED | Private company limited by shares | Live |
| Firstech Energy Co., Limited | Private company limited by shares | Live |
| WING YING ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| NEXT ENGINEERING LIMITED | Private company limited by shares | Live |
| LEVEL 2 ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| ENERGY SAVING PRO COMPANY LIMITED | Private company limited by shares | Live |
| SEFE ENGINEERING LIMITED | Private company limited by shares | Live |
| TPL ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| ENERMIN LIMITED | Private company limited by shares | Live |
| ENVIRO (HONG KONG) LIMITED | Private company limited by shares | Live |
| Envirtech Group Limited | Private company limited by shares | Live |
| EFFECTIVE ENGINEERING LIMITED | Private company limited by shares | Live |
| WISE CHOICE ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| HUANENG ENTERPRISE CO., LIMITED | Private company limited by shares | Live |
| SPORTS & ENTERTAINMENT ASIA LIMITED | Private company limited by shares | Live |
| Chi Tat Engineering Limited | Private company limited by shares | Live |
| DRAGON CROWN ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| ENLIGHTENING COMPANY LIMITED | Private company limited by shares | Live |
| GOOD FOR ENVIRONMENT & RECYCLE LIMITED | Private company limited by shares | Live |
| DYNAGREEN ENVIRONMENT INVESTMENT LIMITED | Private company limited by shares | Live |
| EDAW (INT'L) ENVIRONMENT PLANNING DESIGN LIMITED | Private company limited by shares | Dissolved |
| EnCoup Limited | Private company limited by shares | Live |
| GM ENGINEERING LIMITED | Private company limited by shares | Live |
| Archicorp Construction & Engineering Limited | Private company limited by shares | Live |
| HOI NGAI ENGINEERING CO. LIMITED | Private company limited by shares | Dissolved |
| ASIAN ENERGY INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| ENSANADA LIMITED | Private company limited by shares | Live |
| BASTOGNE ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| ASIA STRONG SPORTS ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| YING LEE ENGINEERING (HONG KONG) LIMITED | Private company limited by shares | Live |
| SUPERB ENTERTAINMENT LIMITED | Private company limited by shares | Live |
| ENRICH CULTURE GROUP LIMITED | Private company limited by shares | Live |
| POP ENGINEER LIMITED | Private company limited by shares | Dissolved |
| TENON ENGINEERING LIMITED | Private company limited by shares | Live |
| BSP ENTERPRISE LIMITED | Private company limited by shares | Live |
| WARWICK ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| HOTIY INTERNATIONAL ENVIRONMENT GROUP LIMITED | Private company limited by shares | Dissolved |
| E-LINKING ENTERPRISE CO., LIMITED | Private company limited by shares | Live |
| MANTOP ENGINEERING LIMITED | Private company limited by shares | Live |
| GLOBAL TIME ENTERPRISES LIMITED | Private company limited by shares | Live |
| T&L ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| Sogefi Engine Systems Hong Kong Limited | Private company limited by shares | Live |
| Wing Lok Ko Engineering Limited | Private company limited by shares | Live |
| CUBIC CONSTRUCTION ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| ENVIRO-TEK HONG KONG LIMITED | Private company limited by shares | Dissolved |
| PACIFIC VIEW ENGINEERING LIMITED | Private company limited by shares | Live |
| GLOBAL SUN ENERGY LIMITED | Private company limited by shares | Live |
| DRAGON TOP ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| WING KO ENGINEERING LIMITED | Private company limited by shares | Live |
| GREATWAY CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| TECH CONSULT ENGINEERING LIMITED | Private company limited by shares | Live |
| BLOOMING ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| NEW HAPPY NETWORK ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| HOSMO ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| FAT HING ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| YIU ON ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| NETSILVER ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| FIRST VICTORY ENTERPRISES LIMITED | Private company limited by shares | Live |
| KINGRITE ENTERPRISES CO., LIMITED | Private company limited by shares | Live |
| CHARIS ENVIRONMENTAL TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| H & Y ENTERPRISE COMPANY LIMITED | Private company limited by shares | Dissolved |
| CHEONG FAT ENVIRONMENT LIMITED | Private company limited by shares | Dissolved |
| Hop Lik Engineering Co., Limited | Private company limited by shares | Live |
| YONG ENG ENERGY COMPANY IN HONG KONG LIMITED | Private company limited by shares | Dissolved |
| HOI SUN HEI ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SUNBIRD ENERGY LIMITED | Private company limited by shares | Live |
| Energy Corder Limited | Private company limited by shares | Live |
| YAT JUN ENTERPRISE COMPANY LIMITED | Private company limited by shares | Dissolved |
| WAH NGAI MARBLE ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| ENERGIZED CITY LIMITED | Private company limited by shares | Live |
| Dongyuan Investment Enterprises Limited | Private company limited by shares | Dissolved |
| TOP SKY ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| ARTISTIC DESIGN & ENGINEERING LIMITED | Private company limited by shares | Live |
| HY ENTERPRISES LIMITED | Private company limited by shares | Live |
| AUSTRALIA NEW ENERGY LIMITED | Private company limited by shares | Dissolved |
| GOOD CROWN ENGINEERING LIMITED | Private company limited by shares | Live |
| GOOD TIME ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| WELL HONEST ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| GENERAL ENERGY LIMITED | Private company limited by shares | Dissolved |
| COMFORT SMART DESIGN ENGINEERING LIMITED | Private company limited by shares | Live |
| HP NEW ENERGY (SHANGHAI) LIMITED | Private company limited by shares | Live |
| STAR CONCORD ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| U & R ENTERPRISE LIMITED | Private company limited by shares | Live |
| ECOPA ENERGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| SAFESKY ENERGY LIMITED | Private company limited by shares | Dissolved |
| HIP KWAN ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |