| POWER ENGINEERING ORIENTAL LIMITED | Private company limited by shares | Live |
| HAPPY GROUP ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| BIG TEAM ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| AP ENERGY INVESTMENTS LIMITED | Private company limited by shares | Live |
| DYSAN ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| TEKPAC ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| HELITE ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| Energys International (HK) Limited | Private company limited by shares | Dissolved |
| KEI KEE SHUI WAH ENGINEERING LIMITED | Private company limited by shares | Live |
| SH ENGINEERING LIMITED | Private company limited by shares | Live |
| HING YIP ENGINEERING (ASIA) LIMITED | Private company limited by shares | Live |
| TOP LEGEND ENGINEERING LIMITED | Private company limited by shares | Live |
| KATEX ENGINEERING LIMITED | Private company limited by shares | Live |
| 4A ENGINEERING (HONG KONG) LIMITED | Private company limited by shares | Live |
| DA DONG ARCHITECTURE AND ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| Fulltech Engineering (Asia) Limited | Private company limited by shares | Dissolved |
| DEKO ENERGY SAVING SYSTEM COMPANY LIMITED | Private company limited by shares | Dissolved |
| VALEBAT ENERGIA LIMITED | Private company limited by shares | Dissolved |
| Reform Energy Service (Hong Kong) Limited | Private company limited by shares | Live |
| YD Enterprises Limited | Private company limited by shares | Dissolved |
| HK XIN WORLD ENVIRONMENT PROTECT TECHNOLOGY DEVELOP LIMITED | Private company limited by shares | Dissolved |
| TIN NAM ENTERPRISE CO LIMITED | Private company limited by shares | Live |
| FORTUNE BASE ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| PURE ENERGY LIMITED | Private company limited by shares | Live |
| ENERGY MARKET COMPANY LIMITED | Private company limited by shares | Dissolved |
| BESTWIN ENTERPRISE SHARES LIMITED | Private company limited by shares | Dissolved |
| SEAPARK ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| CHAMPWAY CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SUNNY DAY CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| LAI MAN KEE ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| WING KIT ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| INTERNATIONAL ENVIRONMENT SAFETY MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| ENTE-TRADE CO., LIMITED | Private company limited by shares | Dissolved |
| RHEIN ENTERPRISE LIMITED | Private company limited by shares | Live |
| Nic Chi Engineering Company Limited | Private company limited by shares | Live |
| JURONG ENGINEERING LIMITED | Private company limited by shares | Live Commenced dormancy on 18-Nov-2013 |
| LEGEND ENGINEERING (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| Wing Tin Aircondition Engineering Company Limited | Private company limited by shares | Live |
| MATCH ENGINEERING LIMITED | Private company limited by shares | Live |
| WOOD CYBER ENGINEERING LIMITED | Private company limited by shares | Live |
| KAI YUI ENGINEERING LIMITED | Private company limited by shares | Live |
| New Global Energy Hong Kong Limited | Private company limited by shares | Live |
| TERRA ENTERPRISE LIMITED | Private company limited by shares | Live |
| WING TAI DESIGN ENGINEERING LIMITED | Private company limited by shares | Live |
| JHON&EDWARD ENGINEERING AND CONSULTING LIMITED | Private company limited by shares | Dissolved |
| WYZZ ENVIRONTECH LIMITED | Private company limited by shares | Dissolved |
| TIM FAT ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| FU ON SCAFFOLDING ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| WAG ENTERPRISE COMPANY LIMITED | Private company limited by shares | Live |
| VAST PEAK OCEAN ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| NEW WELLING ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| ADVANCED ENVIRONMENT INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| VESTONI DESIGN ENGINEERING LIMITED | Private company limited by shares | Live |
| Guangdong Entel Electric Co., Limited | Private company limited by shares | Live |
| Hampool Enterprise Co., Limited | Private company limited by shares | Live |
| WASON ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| LIQUID ENERGY HONG KONG LIMITED | Private company limited by shares | Dissolved |
| YUN KEUNG ENGINEERING LIMITED | Private company limited by shares | Live |
| FIRST ASIA ENGINEERING LIMITED | Private company limited by shares | Live |
| DENWAY ENGINEERING LIMITED | Private company limited by shares | Live |
| NEW LEADER ENGINEERING LIMITED | Private company limited by shares | Live |
| PACIFIC VIEW ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| CHINA HONEST ENTERPRISES LIMITED | Private company limited by shares | Live |
| EVER CAPITAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| GOOD HARBOUR ENGINEERING LIMITED | Private company limited by shares | Live |
| LAP KEI CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| JESCO Energy Solution Limited | Private company limited by shares | Dissolved |
| WELL FUTURE ENGINEERING LIMITED | Private company limited by shares | Live |
| MEGA WISDOM ENTERPRISE LIMITED | Private company limited by shares | Live |
| FEITIAN LANDSCAPE ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| WINNER POWER ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SUN & OCEAN ENTERPRISE CO., LIMITED | Private company limited by shares | Dissolved |
| HOI YUEN CONSTRUCTION ENGINEERING CO. LIMITED | Private company limited by shares | Live |
| ENRICH BEAUTY LIMITED | Private company limited by shares | Dissolved |
| FULL ENRICH LIMITED | Private company limited by shares | Live |
| CHOU PINE RESOURCE ENVIRONMENT LIMITED | Private company limited by shares | Dissolved |
| WHY YOU WHY ME SOCIAL ENTERPRISES LIMITED | Private company limited by shares | Live |
| FIRST GAIN ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| BUDDY E & M ENGINEERING LIMITED | Private company limited by shares | Live |
| Phoria Energy Solutions Limited | Private company limited by shares | Live |
| BOCA ENGINEERING LIMITED | Private company limited by shares | Live |
| MTI Environment Investment Company Limited | Private company limited by shares | Live |
| ENIGMA ENERGY CO., LIMITED | Private company limited by shares | Dissolved |
| MIGHTY ENERGY LIMITED | Private company limited by shares | Live |
| CND ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| WA HING ENGINEERING CO. LIMITED | Private company limited by shares | Dissolved |
| LEUNG KEE MECHANICAL ENGINEERING LIMITED | Private company limited by shares | Live |
| KEUNG FAT ENGINEERING CO. LIMITED | Private company limited by shares | Live |
| YAN ENTERPRISE LIMITED | Private company limited by shares | Live |
| SKY ENERGY (CHINA) INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| FU YUEN ENGINEERING LIMITED | Private company limited by shares | Live |
| SKYLINK SCAFFOLDING ENGINEERING LIMITED | Private company limited by shares | Live |
| Maitek Engineering Company Limited | Private company limited by shares | Dissolved |
| MAX SUN ENGINEERING LIMITED | Private company limited by shares | Live |
| ENERGY WISE CO. LIMITED | Private company limited by shares | Dissolved |
| GRAND MAX ENTERPRISES (GROUP) LIMITED | Private company limited by shares | Live |
| DAIWA ENGINEERING LIMITED | Private company limited by shares | Live |
| SKY LINK ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| WINTON WEALTH ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| ENHEALTH LIMITED | Private company limited by shares | Live |