| XILAN ENERGY COMPANY LIMITED | Private company limited by shares | Live |
| LEI TO AIR CONDITIONING ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| KIN CHUEN ELECTRIC ENGINEERING LIMITED | Private company limited by shares | Live |
| HESTIUN ENVIRONMENT LIMITED | Private company limited by shares | Live |
| YAT FUNG ENVIRONMENT LIMITED | Private company limited by shares | Live |
| Energy Conservation Technology Company Limited | Private company limited by shares | Dissolved |
| SPLENDID ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| USA PAN ASIA PERSPECTIVE ENVIRONMENTAL DESIGN (CHINA) LIMITED | Private company limited by shares | Dissolved |
| AQUARIUS ENERGY LIMITED | Private company limited by shares | Live |
| Guang Hua Energy Company Limited | Private company limited by shares | Live |
| CHINESE NEW ENERGY LIMITED | Private company limited by shares | Live |
| LUMING ENERGY (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| SHJ ENTERPRISE LIMITED | Private company limited by shares | Live |
| TAI YAT GREEN ENERGY LIMITED | Private company limited by shares | Dissolved |
| GLORIOUS CHINA ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| GOLDWIN ENTERPRISES LIMITED | Private company limited by shares | Live |
| GX POWER ENERGY LIMITED | Private company limited by shares | Live |
| WAI LEE ENGINEERING (HONG KONG) LIMITED | Private company limited by shares | Live |
| LOW ENERGY DEVICES LIMITED | Private company limited by shares | Live |
| VICTORIA ENTERPRISE LIMITED | Private company limited by shares | Live |
| WAH YU ENGINEERING LIMITED | Private company limited by shares | Live |
| ENERGY INVESTMENTS (HONG KONG) LIMITED | Private company limited by shares | Live |
| Kension Engineering Company Limited | Private company limited by shares | Live |
| ALL BEST ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| HKHS ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| LENOVONERGY AND ENVIRONMENTAL (HK) LIMITED | Private company limited by shares | Dissolved |
| HONGKONG INTERNATIONAL GROUP OF ENGLAND AGRICULTURAL SCIENCE AND TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| SHYUAN-KUO ENVIRONMENTAL LIMITED | Private company limited by shares | Dissolved |
| WING TAT ELECTRICAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| VTECH ENGINEERING PTE LIMITED | Private company limited by shares | Live |
| ECO ASIA ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| TRIOELECTRIC ENGINEERING LIMITED | Private company limited by shares | Live |
| MEGA ENVIRONMENTAL TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| HK RCB ENGINEERING CONSULTING & SERVICE CO., LIMITED | Private company limited by shares | Live |
| MAN SENG MACHINERY ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| TADELA ENGINEERING CO., LIMITED | Private company limited by shares | Dissolved |
| Derun Environment (Holdings) Group Co., Limited | Private company limited by shares | Live |
| MAX GAIN ENGINEERING LIMITED | Private company limited by shares | Live |
| EASTERN GLORY ENTERPRISES LIMITED | Private company limited by shares | Live |
| SUNNY TIME ENTERPRISE LIMITED | Private company limited by shares | Live |
| GRACE DRAGON ENTERPRISE LIMITED | Private company limited by shares | Live |
| FINDS' ENVIRONMENTAL RECYCLES LIMITED | Private company limited by shares | Live |
| KARTEX ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| Enparticles Limited | Private company limited by shares | Live |
| SANLING ENGINE (CHINA) LIMITED | Private company limited by shares | Dissolved |
| SunKainen New Energy Co., Limited | Private company limited by shares | Dissolved |
| ASIAN EUROPEAN ENGINEERING LIMITED | Private company limited by shares | Live |
| EASY TAK ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| PAN-LEADING ENTERPRISES CO., LIMITED | Private company limited by shares | Live |
| JOINBO ENTERPRISES LIMITED | Private company limited by shares | Live |
| AVANTIS ENERGY LIMITED | Private company limited by shares | Live |
| Gem Enterprises Limited | Private company limited by shares | Live |
| Yinm Environment & Energies Co., Limited | Private company limited by shares | Live |
| Ruitek Engineering Company Limited | Private company limited by shares | Live |
| GLOBAL ENRICH INTERNATIONAL GROUP LIMITED | Private company limited by shares | Live |
| GLOBAL SOLAR ENGINEERING LIMITED | Private company limited by shares | Live |
| GAS ENVIRONMENTAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| JOY BOND ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| MS ENTERPRISES LIMITED | Private company limited by shares | Live |
| TWT ENVIRONMENT PROTECTION TECHNICAL (HONGKONG) LIMITED | Private company limited by shares | Dissolved |
| ENRICH SPOT LIMITED | Private company limited by shares | Live |
| WILDDESIGN ENGINEERING HONG KONG LIMITED | Private company limited by shares | Dissolved |
| ENBUIL LIMITED | Private company limited by shares | Dissolved |
| JR Engineering Limited | Private company limited by shares | Dissolved |
| DYNASTY DESIGN ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| E'S ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| ENRICH INSURANCE BROKERS LIMITED | Private company limited by shares | Live |
| MARDIN ENERGY & MARINE COMPANY LIMITED | Private company limited by shares | Dissolved |
| BEAUTY ENERGY LIMITED | Private company limited by shares | Live |
| DRAGON TIME ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| WEALTH SUCCESS ENGINEERING LIMITED | Private company limited by shares | Live |
| BEST GOLD ENGINEERING LIMITED | Private company limited by shares | Live |
| HK YM ENTERPRISE COMPANY LIMITED | Private company limited by shares | Live |
| HAFELE ENGINEERING ASIA LIMITED | Private company limited by shares | Live |
| ENRICH VANTAGE LIMITED | Private company limited by shares | Dissolved |
| YK ENTERPRISE COMPANY LIMITED | Private company limited by shares | Live |
| Nature Unity Environment Protection Limited | Private company limited by shares | Dissolved |
| ADVANCED INNOVATIONS ENTERPRISE LIMITED | Private company limited by shares | Live |
| HANG FAT AIR CONDITIONING ENGINEERING LIMITED | Private company limited by shares | Live |
| HK Canfull ENVIRONMENTAL TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| HK ENJOY PLUMBING SUPPLY COMPANY LIMITED | Private company limited by shares | Live |
| YANGYU ENTERPRISE LIMITED | Private company limited by shares | Live |
| ENERTECH SOLUTION CO., LIMITED | Private company limited by shares | Dissolved |
| CHINA WINES ENTERPRISE COMPANY LIMITED | Private company limited by shares | Dissolved |
| JX ENGINEERING AND ENVIRONMENTAL MANAGEMENT LIMITED | Private company limited by shares | Live |
| Conigs Enterprisers Limited | Private company limited by shares | Live |
| BHA ENTERPRISE LIMITED | Private company limited by shares | Live |
| Tung Lok Engineering (Maintenance) Company Limited | Private company limited by shares | Dissolved |
| GOLD LEADER ENGINEERING LIMITED | Private company limited by shares | Live |
| ADVANCED ECO ENGINEERING LIMITED | Private company limited by shares | Live |
| Million View Engineering Limited | Private company limited by shares | Live |
| ENERGY AND RESOURCES SOLUTIONS (HONG KONG) LIMITED | Private company limited by shares | Live |
| METRO ENVIROTECH LIMITED | Private company limited by shares | Live |
| ECO ENERGY INVESTMENT LIMITED | Private company limited by shares | Live |
| ENGLAND ROYAL MAYFAIR MEDICAL ANTI-AGING STUDY CENTER LIMITED | Private company limited by shares | Dissolved |
| Green Energy Capital Limited | Private company limited by shares | Live |
| TERA-POWER ENERGY COMPANY LIMITED | Private company limited by shares | Live |
| HK HONGHAO MARINE ENGINEERING LIMITED | Private company limited by shares | Live |
| CFD STAR ENERGY LIMITED | Private company limited by shares | Live |
| NEWFORM ENTERPRISE LIMITED | Private company limited by shares | Live |