| Tai Yuen Enrich Limited | Private company limited by shares | Live |
| SURPLUS SKY ENGINEERING LIMITED | Private company limited by shares | Live |
| WANG CHOW ENGINEERING LIMITED | Private company limited by shares | Live |
| LEADOCEAN ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| SHENZHEN BK ENERGY CO., LIMITED | Private company limited by shares | Live |
| CHAMPLUS ENGINEERING LIMITED | Private company limited by shares | Live |
| TYNSUN SOLAR ENERGY CO., LIMITED | Private company limited by shares | Live |
| Good to enjoy time Catering Management Company Limited | Private company limited by shares | Live |
| ShenZhen Top Energy Electronics Co., Limited | Private company limited by shares | Live |
| CHIU LUNG ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| MCI Engineering & Enterprises Co., Limited | Private company limited by shares | Live |
| ASIA HEALTHCARE ENTERPRISE LIMITED | Private company limited by shares | Live |
| METRO ENGINEERING HK LIMITED | Private company limited by shares | Live |
| GAI LEI ENGINEERING TRADING COMPANY LIMITED | Private company limited by shares | Live |
| ON KWAN ENGINEERING LIMITED | Private company limited by shares | Live |
| HK RUNDEAO ENVIRONMENT TECHNOLOGY LIMITED | Private company limited by shares | Live |
| EXA Energy Limited | Private company limited by shares | Live |
| WJ Energy Group Limited | Private company limited by shares | Live |
| Kinghome Environmental Technologies Co., Limited | Private company limited by shares | Live |
| MPS Engineering Contractors Limited | Private company limited by shares | Live |
| O&G Energy Management (Hong Kong) Group Limited | Private company limited by shares | Live |
| JWSAVVY TECH ENGINEERING CO LIMITED | Private company limited by shares | Live |
| JW ENTERTAINMENT LIMITED | Private company limited by shares | Live |
| Man Lee Wealth Engineering Limited | Private company limited by shares | Live |
| GLOBAL DREAMS ENGINEERING (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| SZ Wu Yi Enterprise Limited | Private company limited by shares | Live |
| GUIGU ENVIRONMENT INTERNATIONAL LIMITED | Private company limited by shares | Live |
| BLINK ENTERPRISE LIMITED | Private company limited by shares | Live |
| Environment & Technology Services (Hong Kong) Limited | Private company limited by shares | Live |
| DEKAI ENGINEERING & INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| AKIRA ENERGY (SOUTH) LIMITED | Private company limited by shares | Live |
| VAST FORTUNE ENGINEERING LIMITED | Private company limited by shares | Live |
| H&H Engineering (A.C.) Limited | Private company limited by shares | Live |
| ENTROPY LIMITED | Private company limited by shares | Live |
| FUK WAI ENGINEERING LIMITED | Private company limited by shares | Live |
| EVER SUCCESS CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| RICH TIME CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| H. F ENGINEERING LIMITED | Private company limited by shares | Live |
| China Dynamics Environtech (Beijing) Company Limited | Private company limited by shares | Live |
| China Dynamics Environtech (Jiangxi) Company Limited | Private company limited by shares | Live |
| Star Wealth Construction Engineering Limited | Private company limited by shares | Live |
| Jockey Engineering Limited | Private company limited by shares | Live |
| SOHO Mechanical Engineering Company Limited | Private company limited by shares | Live |
| GREEN ENGINE MARINE SERVICE LIMITED | Private company limited by shares | Live |
| WO WAN TUNG ENGINEERING LIMITED | Private company limited by shares | Live |
| WEALTHY ENGINEERING (HONG KONG) LIMITED | Private company limited by shares | Live |
| FULL TIME ENGINEERING LIMITED | Private company limited by shares | Live |
| ASV ENTERPRISES LIMITED | Private company limited by shares | Live |
| Envidence Ptd Limited | Private company limited by shares | Live |
| China Energy and Mining (Hong Kong) Limited | Private company limited by shares | Live |
| EnWiTech Limited | Private company limited by shares | Live |
| NEWSTAR FOR WATCH&CLOCK ENTERPRISES LIMITED | Private company limited by shares | Live |
| GNG Enterprise LIMITED | Private company limited by shares | Live |
| B.S. ENTERPRISES LIMITED | Private company limited by shares | Live |
| LEE KIN ENGINEERING LIMITED | Private company limited by shares | Live |
| JOE SON ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| Fu Ka Engineering & Construction Limited | Private company limited by shares | Live |
| BLUETECH ENVIRONMENTAL (HK) COMPANY LIMITED | Private company limited by shares | Live |
| CHING WAH ENVIRONMENTAL RESOURCES (HK) LIMITED | Private company limited by shares | Live |
| NORTH AMERICA OXYGEN ENVIRONMENT ASIA LIMITED | Private company limited by shares | Live Commenced dormancy on 24-Jun-2016 |
| ENVITEK GROUP LIMITED | Private company limited by shares | Live |
| Sun Force Engineering Company Limited | Private company limited by shares | Live |
| ENERGY MANAGEMENT CONSULTING COMPANY LIMITED | Private company limited by shares | Live |
| ALL TEAM ENTERPRISE LIMITED | Private company limited by shares | Live |
| CREATIVE TALENT ENGINEERING LIMITED | Private company limited by shares | Live |
| RICH VIEW CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| SILVER EXPRESS ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SUNNY TEAM ENGINEERING LIMITED | Private company limited by shares | Live |
| KA YIP ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| YUEN TAK CONSTRUCTION ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| CENTRAL SOUTH ENERGY LIMITED | Private company limited by shares | Live |
| GREEN ENVIRONMENT CO., LIMITED | Private company limited by shares | Live |
| SHUNG FAT ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| ENTREPRENEURS INVESTMENT GROUP LIMITED | Private company limited by shares | Dissolved |
| HIP LUNG CONSTRUCTION MATERIALS & ENGINEERING CO. LIMITED | Private company limited by shares | Live |
| MBJ Enterprise Limited | Private company limited by shares | Live |
| CENTURY FORTUNE ENTERPRISES LIMITED | Private company limited by shares | Live |
| MAN MING ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| Elet Engineering (Hong Kong) Limited | Private company limited by shares | Live |
| Southern Cross Energy Limited | Private company limited by shares | Live |
| Enrich-U Enterprise Co., Limited | Private company limited by shares | Live |
| NEW AGE ENTERPRISES LIMITED | Private company limited by shares | Live |
| Harbour Energy Limited | Private company limited by shares | Dissolved |
| KA HING ENGINEERING LIMITED | Private company limited by shares | Live |
| WAN HAI ENGINEERING LIMITED | Private company limited by shares | Live |
| Best Link Construction Engineering Limited | Private company limited by shares | Live |
| Enrich Consultants Limited | Private company limited by shares | Live |
| S U ENVIRONMENTAL TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| ION ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| BLU Energy Drink (Asia) Limited | Private company limited by shares | Live |
| WAYU HK ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| Smart Harvest Engineering Co Limited | Private company limited by shares | Live |
| Victory Engineering and Constructing Company Limited | Private company limited by shares | Live |
| GOLD STAR ENGINEERING LIMITED | Private company limited by shares | Live |
| APAC ENTERPRISES LIMITED | Private company limited by shares | Live |
| HK CHONGXING TERRITORY ENVIRONMENTAL PROTECTION TECHNOLOGY LIMITED | Private company limited by shares | Live |
| KAI CHUNG ENGINEERING LIMITED | Private company limited by shares | Live |
| CHIU NGAI ENGINEERING LIMITED | Private company limited by shares | Live |
| Kin Tao Engineering Company Limited | Private company limited by shares | Live |
| Lv & Hai Enterprise Limited | Private company limited by shares | Live |