| HK WING FAI ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| WAI HO ENGINEERING LIMITED | Private company limited by shares | Live |
| CHI WAI MECHANICAL ENGINEERING CO LIMITED | Private company limited by shares | Live |
| Ho Chi Air Conditioning & Engineering Company Limited | Private company limited by shares | Dissolved |
| HONFORD ENTERPRISES LIMITED | Private company limited by shares | Live |
| LI KEUNG ELECTRICAL ENGINEERING LIMITED | Private company limited by shares | Live |
| BRIGHTON ENTERPRISES LIMITED | Private company limited by shares | Live |
| Enercom Limited | Private company limited by shares | Dissolved |
| WAH HA METAL ENGINEERING LIMITED | Private company limited by shares | Live |
| Rixi Environment Protection Hong Kong Limited | Private company limited by shares | Live |
| FLY EXHIBITION ENGINEERING LIMITED | Private company limited by shares | Live |
| WIN TOP MARBLE ENGINEERING LIMITED | Private company limited by shares | Live |
| VICTOR ENTERPRISE (CHINA) LIMITED | Private company limited by shares | Live |
| SEASUMMER ENERGY POWER CO., LIMITED | Private company limited by shares | Live |
| QINGDAO PURE NEW ENERGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| Yee Yau Engineering Company Limited | Private company limited by shares | Live |
| NATURE ENERGY TECH LIMITED | Private company limited by shares | Dissolved |
| Ekids English Learning Centre Limited | Private company limited by shares | Live |
| EPTEK Envirotech (HK) Limited | Private company limited by shares | Live |
| Pan Asia Century Enterprise Limited | Private company limited by shares | Live |
| TRILLION ENERGY COMPANY LIMITED | Private company limited by shares | Live |
| JOYFUL SKY ENGINEERING LIMITED | Private company limited by shares | Live |
| INSTITUTION OF ENVIRONMENTALISTS LIMITED | Company limited by guarantee | Live |
| CROSSKY ENTERPRISES LIMITED | Private company limited by shares | Live |
| FRUITFUL ENTERTAINMENT PRODUCTIONS LIMITED | Private company limited by shares | Dissolved |
| RT ENTERPRISES LIMITED | Private company limited by shares | Live |
| KY ENTERPRISE LIMITED | Private company limited by shares | Live |
| WAI WIN ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| KAM WUI ENGINEERING (CHINA) LIMITED | Private company limited by shares | Live |
| OCEAN & SKY ENVIRONMENTAL TECH. CO., LIMITED | Private company limited by shares | Dissolved |
| S. S. ENERGY CO., LIMITED | Private company limited by shares | Dissolved |
| SUN KEUNG KEE ENGINEERING LIMITED | Private company limited by shares | Live |
| RICA ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| Smooth Idea Engineering Limited | Private company limited by shares | Dissolved |
| SUNMAY ENTERPRISE CO., LIMITED | Private company limited by shares | Live |
| ZONHAN NEW ENERGY COMPANY LIMITED | Private company limited by shares | Live |
| ENERSYG LIMITED | Private company limited by shares | Dissolved |
| WIN Energy Limited | Private company limited by shares | Live |
| PRAIRIE ENVIRONMENT TECHNOLOGY LIMITED | Private company limited by shares | Live |
| WINSOUND ENTERPRISES LIMITED | Private company limited by shares | Live |
| CHINA WINNING THREAD ENTERPRISE LIMITED | Private company limited by shares | Live |
| Flying Dragon Engineering Company Limited | Private company limited by shares | Live |
| HIP MING ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| AMG ENERGY LIMITED | Private company limited by shares | Live |
| AFRICA ENERGY LIMITED | Private company limited by shares | Live |
| ENMAYER CO., LIMITED | Private company limited by shares | Live |
| MS Engineering Limited | Private company limited by shares | Live |
| GLORY OCEAN ENTERPRISES LIMITED | Private company limited by shares | Live |
| FOYA ENTERPRISE LIMITED | Private company limited by shares | Live |
| NEW AGE ENGINEERING LIMITED | Private company limited by shares | Live |
| SOAR CONSTRUCTION & ENGINEERING (MACAU) CO., LIMITED | Private company limited by shares | Dissolved |
| TMG Enterprise Limited | Private company limited by shares | Live |
| HONG KONG QSI TECHNOLOGY ENVIRONMENTAL PROTECTION LIMITED | Private company limited by shares | Live |
| LAB Engineering & Technologies Limited | Private company limited by shares | Live |
| ENGUT GROUP LIMITED | Private company limited by shares | Dissolved |
| FUN ENGLISH LIMITED | Private company limited by shares | Live |
| THIRD WAVE ENERGY CO LIMITED | Private company limited by shares | Live |
| SMOOTH GAIN ENGINEERING LIMITED | Private company limited by shares | Live |
| WOODLEY ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| HK SCYS ENVIRONMENTAL PROTECTION LIMITED | Private company limited by shares | Dissolved |
| M FORCE ENGINEERING LIMITED | Private company limited by shares | Live |
| LIFENG ENVIRONMENTAL PROTECTION LIMITED | Private company limited by shares | Live |
| ENLIGHTON MATERIAL TRADE CO., LIMITED | Private company limited by shares | Live |
| HK NEW ENERGY OPTOELECTRONIC LIMITED | Private company limited by shares | Dissolved |
| FANDA ENTERPRISE LIMITED | Private company limited by shares | Live |
| N. S. I. ENGINEERING LIMITED | Private company limited by shares | Live |
| Top Creation Electrical Engineering Limited | Private company limited by shares | Live |
| Innovator Enterprise Limited | Private company limited by shares | Live |
| EnrSolar Limited | Private company limited by shares | Live |
| DOMINIC ENVIRONMENTAL TECHNOLOGY (CHINA) LIMITED | Private company limited by shares | Live |
| ZIVA ENTERPRIZES LIMITED | Private company limited by shares | Live |
| MILESTONE ENTERPRISE LIMITED | Private company limited by shares | Live |
| HUA YI ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| ENERGIS SOLAR LIMITED | Private company limited by shares | Dissolved |
| ECO SOLAR ENERGY CO., LIMITED | Private company limited by shares | Live |
| TAG Enterprise Limited | Private company limited by shares | Live |
| SKYWARD ENGINEERING & TRADING LIMITED | Private company limited by shares | Live |
| C & M ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| W & T ENGINEERING LIMITED | Private company limited by shares | Live |
| DNG ENERGYSAVING ENVIRONMENTAL GROUP LIMITED | Private company limited by shares | Dissolved |
| FU WING ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| Axiswell Engineering & Consultancy Limited | Private company limited by shares | Live |
| SUNRISE INGREDIENTS ENTERPRISE LIMITED | Private company limited by shares | Live |
| TUNG KONG AIR-CONDITION ENGINEERING LIMITED | Private company limited by shares | Live |
| ASIA K-ONE CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| ASIA CHINA CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| CAD-Plast engineering Limited | Private company limited by shares | Dissolved |
| CHINA-HONG KONG ENTREPRENEUR ASSOCIATION LIMITED | Private company limited by shares | Live Ceased dormancy on 11-Feb-2015 |
| PRO ENTERPRISES LIMITED | Private company limited by shares | Live |
| DEU NEW ENERGY GROUP LIMITED | Private company limited by shares | Live |
| MJM Enterprises Limited | Private company limited by shares | Live |
| GM Engineering Consulting Co, Limited | Private company limited by shares | Live |
| GUOXIN ENVIRONMENTAL TREATMENT CO., LIMITED | Private company limited by shares | Dissolved |
| Chong Yat Engineering Company Limited | Private company limited by shares | Live |
| ENUO VYSEN (HONGKONG) CO., LIMITED | Private company limited by shares | Dissolved |
| QI CHI ENTERPRISE LIMITED | Private company limited by shares | Live |
| HSL ELECTRICAL ENGINEERING LIMITED | Private company limited by shares | Live |
| GLORY ASIA ENGINEERING LIMITED | Private company limited by shares | Live |
| GRAND ENGINEERING LIMITED | Private company limited by shares | Live |
| NATURAL ENGINEERING LIMITED | Private company limited by shares | Live |