| Mei Tai Energy (Hong Kong) Co., Limited | Private company limited by shares | Live |
| EVER GRAND ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| NCF ENTERPRISE LIMITED | Private company limited by shares | Live |
| SaiDaTong Energy Technology Limited | Private company limited by shares | Live |
| BEST POWER CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| WIN TEAM CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| ZHONGMEI ENGINEERING GROUP LIMITED | Private company limited by shares | Live |
| Bai Qun Enterprise Limited | Private company limited by shares | Dissolved |
| LINK FAI ENGINEERING CO LIMITED | Private company limited by shares | Live |
| Energy Impex Hong Kong Limited | Private company limited by shares | Live |
| Grand Rise Environment Recycling Limited | Private company limited by shares | Live |
| CENTURY GAIN ENTERPRISES LIMITED | Private company limited by shares | Live |
| ENRAPTURE ASIA LIMITED | Private company limited by shares | Live |
| FIRST BASE ENTERPRISES LIMITED | Private company limited by shares | Live |
| T & R ENTERPRISE LIMITED | Private company limited by shares | Live |
| FIRST EAST ENTERPRISES LIMITED | Private company limited by shares | Live |
| Gocean Engineering Limited | Private company limited by shares | Dissolved |
| Enjoy Toys (Hong Kong) Company Limited | Private company limited by shares | Dissolved |
| EASY MAINTENANCE ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| JETCO TRADING & ENGINEERING COMPANY LIMITED | Private company limited by shares | Live Ceased dormancy on 10-May-2016 |
| WEALTHY ELECTRICAL ENGINEERING LIMITED | Private company limited by shares | Live |
| ANRICH ENVIRONMENTAL TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| WO YANG ENGINEERING LIMITED | Private company limited by shares | Live |
| THF Engineering Company Limited | Private company limited by shares | Live |
| MEGA ENSAMBLES CO., LIMITED | Private company limited by shares | Live |
| ZEO ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| FU JIA ENTERPRISES LIMITED | Private company limited by shares | Live |
| YIK TAK CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| Neo Yin Engineering Limited | Private company limited by shares | Live |
| BMX Enterprises Limited | Private company limited by shares | Live |
| CHI YIP CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| GRAND PACIFIC ENTERPRISES LIMITED | Private company limited by shares | Live |
| C&C ENTERTAINMENT LIMITED | Private company limited by shares | Live |
| AHS Enterprises Limited | Private company limited by shares | Live |
| TUNG WAN ENGINEERING LIMITED | Private company limited by shares | Live |
| Euroway Enterprises Limited | Private company limited by shares | Live |
| Enjoy Success Development Co., Limited | Private company limited by shares | Dissolved |
| GUANGZHOU QUEENSWING SOLAR ENERGY CO., LIMITED | Private company limited by shares | Live |
| Fok Wang Engineering Company Limited | Private company limited by shares | Live |
| ASIA STANDARD ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| TopBuild Engineering Company Limited | Private company limited by shares | Live |
| Fu Li Dong Design & Engineering Company Limited | Private company limited by shares | Live |
| JOIN ENERGY LIMITED | Private company limited by shares | Live |
| ASIA TEAM ENGINEERING LIMITED | Private company limited by shares | Live |
| PIK KIN ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| ABLE CREATION ENGINEERING LIMITED | Private company limited by shares | Live |
| SENG KEI AIR CONDITION ENGINEERING LIMITED | Private company limited by shares | Live |
| MENG TAI ENERGY LIMITED | Private company limited by shares | Live |
| GASIRIS ENERGY GROUP LIMITED | Private company limited by shares | Live |
| ON RICH CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| BO WAH E & M ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| E.A.T. (Enjoy Amazing Taste) Limited | Private company limited by shares | Live |
| Rhino (AC&E) Engineering Company Limited | Private company limited by shares | Live |
| SAM YUEN ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| ENERGY WINNER LIMITED | Private company limited by shares | Dissolved |
| HK ENJOY DIAMOND LIMITED | Private company limited by shares | Live |
| China Water Environment Group (Hong Kong) Limited | Private company limited by shares | Live |
| YONGTENG GLOBAL ENVIRONMENT LIMITED | Private company limited by shares | Live |
| ARSK Engineering Limited | Private company limited by shares | Live |
| CENTURY ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| ASIA CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| KEN PRO ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| GLE Lakes Energy Company Limited | Private company limited by shares | Dissolved |
| China Environmental Industrial Group Limited | Private company limited by shares | Live |
| CHINA ENTREPRENEUR HIGH-LEVEL TRAINING CENTRE LIMITED | Private company limited by shares | Live |
| CLASSIC RISE ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| PAK SUN CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| OMAX ENTERPRISES LIMITED | Private company limited by shares | Live |
| ENOCH EDUCATION CENTRE LIMITED | Private company limited by shares | Live |
| PO MAN ENGINEERING LIMITED | Private company limited by shares | Live |
| NICKWAY ENGINEERING LIMITED | Private company limited by shares | Live |
| E & J ENTERPRISE LIMITED | Private company limited by shares | Live |
| Encare Biotech Limited | Private company limited by shares | Live |
| GENERAL SUCCESS ENTERPRISE LIMITED | Private company limited by shares | Live |
| RPT Enterprises Limited | Private company limited by shares | Live |
| YU TU ENGINEERING LIMITED | Private company limited by shares | Live |
| Yi Tai Rui Wo Environmental Consulting Company Limited | Private company limited by shares | Live |
| WIN KEN ENGINEERING LIMITED | Private company limited by shares | Live |
| SINO-JAPAN ENTREPRENEURS INVESTMENT FUND LIMITED | Private company limited by shares | Live |
| HONG KONG STANDARD ENVIRONMENTAL COMPANY LIMITED | Private company limited by shares | Live |
| LQ Enterprise Limited | Private company limited by shares | Live |
| TM&T Engineering Limited | Private company limited by shares | Live |
| Energy Queen Limited | Private company limited by shares | Dissolved |
| ENTRUST SETTLEMENT LIMITED | Private company limited by shares | Live |
| Atlantic Energy Service Limited | Private company limited by shares | Live |
| PI Energy System Co., Limited | Private company limited by shares | Live |
| GOLDENSTONE ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| ENVIRONMENTAL INNOVATION COUNCIL LIMITED | Company limited by guarantee | Live |
| NEW HOI TAT ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| Morgan Engineering Company Limited | Private company limited by shares | Live |
| ENHUI TRADING LIMITED | Private company limited by shares | Live |
| ENERGETHIC LIMITED | Private company limited by shares | Live |
| MING HO ENGINEERING HK COMPANY LIMITED | Private company limited by shares | Live |
| NEW ENERGY SOLUTION LIMITED | Private company limited by shares | Live |
| DBV Enterprises Limited | Private company limited by shares | Live |
| ENOVEDIA LIMITED | Private company limited by shares | Live |
| Enrich Management Co., Limited | Private company limited by shares | Dissolved |
| WINNING STAR ENTERPRISES LIMITED | Private company limited by shares | Live |
| FIRST POWER ENTERPRISE LIMITED | Private company limited by shares | Live |
| SHEEN DRAGON ENTERPRISE LIMITED | Private company limited by shares | Live |