| LC AIR CONDITION ENGINEERING LIMITED | Private company limited by shares | Live |
| YUN TAK ENTERPRISE LIMITED | Private company limited by shares | Live |
| LEN ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| E-Rise Engineering Limited | Private company limited by shares | Live |
| ENERGY EMPIRE LIMITED | Private company limited by shares | Live |
| FXL Engineering Limited | Private company limited by shares | Live |
| HK ENGINEERING GROUP LIMITED | Private company limited by shares | Live |
| Hai Ti Fu Energy Limited | Private company limited by shares | Dissolved |
| Kui Kee Engineering Limited | Private company limited by shares | Live |
| Titan Engineering Company Limited | Private company limited by shares | Dissolved |
| D&Y ENGINEERING CO. LIMITED | Private company limited by shares | Live |
| Power-Light Engineering Limited | Private company limited by shares | Live |
| HK SHUNXIN ENVIRONMENT TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| P2 Net Technology Engineering Limited | Private company limited by shares | Live |
| PEC Engineering Limited | Private company limited by shares | Live |
| ENERGY LINE LIMITED | Private company limited by shares | Live |
| Zhanda Environmental Technology (Hong Kong) Limited | Private company limited by shares | Live |
| J & A Enterprise Limited | Private company limited by shares | Live |
| GAIN CHOICE ENTERPRISES LIMITED | Private company limited by shares | Live |
| INTEGRATED ENERGY LIMITED | Private company limited by shares | Live |
| Worldlink Energy Systems Limited | Private company limited by shares | Live |
| NEW ENERGY INVESTMENT (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| FULL GEAR ENGINEERING LIMITED | Private company limited by shares | Live |
| ENJOY CHEF LIMITED | Private company limited by shares | Live |
| SAN WAH NGAI ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| SIMMER ENGINEERING LIMITED | Private company limited by shares | Live |
| WISON ENERGY INVESTMENT LIMITED | Private company limited by shares | Live |
| HYCON ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| BDE ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| HANG ON SCAFFOLDING ENGINEERING LIMITED | Private company limited by shares | Live |
| Evergena Environmental Filtration Engineering Limited | Private company limited by shares | Live |
| BAI ENTERPRISE LIMITED | Private company limited by shares | Live |
| ENRICH WAY LIMITED | Private company limited by shares | Dissolved |
| WONSTAR ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| LOOKBRIGHT ENTERTAINMENT LIMITED | Private company limited by shares | Live |
| ATES ENGINEERING LIMITED | Private company limited by shares | Live |
| Ming Ke Technology Engineering Limited | Private company limited by shares | Live |
| VARAR METAL ENGINEERING LIMITED | Private company limited by shares | Live |
| Trigenius Green Energy Investment Limited | Private company limited by shares | Live |
| LAI SUN ENGINEERING LIMITED | Private company limited by shares | Live |
| ENERGY TOOLS POLAND LIMITED | Private company limited by shares | Live |
| Rechange Environmental Technology Co., Limited | Private company limited by shares | Live |
| KH ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| ENGINE SERVICE COMPANY LIMITED | Private company limited by shares | Live |
| HK Global Times New Energy Group Limited | Private company limited by shares | Dissolved |
| Kingsley Engineering Limited | Private company limited by shares | Live |
| STABLE ENTERPRISES LIMITED | Private company limited by shares | Live |
| FO YUE ENGINEERING LIMITED | Private company limited by shares | Live |
| HARVEST BASIC ENTERPRISES LIMITED | Private company limited by shares | Live |
| ON TAT ENGINEERING HK LIMITED | Private company limited by shares | Live |
| PO CHIT ENGINEERING LIMITED | Private company limited by shares | Live |
| YIU HON ENGINEERING LIMITED | Private company limited by shares | Live |
| ENJOY TRADING & DEVELOPMENT LIMITED | Private company limited by shares | Live |
| ENRICH ELECTRONIC CO., LIMITED | Private company limited by shares | Live |
| ENR-9 LIMITED | Private company limited by shares | Live |
| LB GLOBAL ENERGY LIMITED | Private company limited by shares | Live |
| CNS ENTERPRISE LIMITED | Private company limited by shares | Live |
| New Spirit Engineering Limited | Private company limited by shares | Live |
| Legend Engineering Design Limited -The- | Private company limited by shares | Live |
| ENERGOMAX LIMITED | Private company limited by shares | Dissolved |
| BTS ENGINEERING LIMITED | Private company limited by shares | Live |
| JINYING ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| ENRG Hong Kong Limited | Private company limited by shares | Live |
| YU LUNG ENGINEERING LIMITED | Private company limited by shares | Live |
| Call Engine Limited | Private company limited by shares | Live |
| Greenway Energy Limited | Private company limited by shares | Live |
| TRUSTY GAS ENGINEERING LIMITED | Private company limited by shares | Live |
| 3A Energy Enterprises Limited | Private company limited by shares | Live Commenced dormancy on 07-Jul-2014 |
| KNAUER ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| Environmental Solutions Far East Limited | Private company limited by shares | Live |
| Up Energy Finance Limited | Private company limited by shares | Live |
| KP ENERGY CO., LIMITED | Private company limited by shares | Live |
| Quark Enterprise Company Limited | Private company limited by shares | Live |
| SCAN ENGINEERING PRIVATE LIMITED | Private company limited by shares | Live |
| TIM LEE ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| Energetic Energy Technologies Limited | Private company limited by shares | Live |
| Energy Resources Technology Limited | Private company limited by shares | Live |
| CALLY ENGINEERING LIMITED | Private company limited by shares | Live |
| OK ELECTRIC ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| GRAND SOLAR ENERGY LIMITED | Private company limited by shares | Live |
| Kash Events and Entertainment Limited | Private company limited by shares | Live |
| EXA Global Engineering Co., Limited | Private company limited by shares | Live |
| LEI TAT GAS ENGINEERING LIMITED | Private company limited by shares | Live |
| ENVIRONMENTAL SOLUTIONS CHINA LIMITED | Private company limited by shares | Live |
| MOTT ENERGIES CO., LIMITED | Private company limited by shares | Live |
| REICS POWDER ENGINEERING CO., LIMITED | Private company limited by shares | Dissolved |
| ENOTE TRADE ELECTRONICS TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| ATOM ENTERPRISE LIMITED | Private company limited by shares | Live |
| ENCHANTED CITY LIMITED | Private company limited by shares | Live |
| ADVANCED ENVIRONMENTAL ASIA COMPANY LIMITED | Private company limited by shares | Dissolved |
| ADVANCED ENERGY TECHNOLOGIES COMPANY LIMITED | Private company limited by shares | Live |
| MR ENTERPRISES LIMITED | Private company limited by shares | Live |
| RICHUP CONSTRUCTION ENGINEERING TRANSPORTATION LIMITED | Private company limited by shares | Live |
| ASIA ENERGY RESOURCES LIMITED | Private company limited by shares | Live |
| Handsome Engineering Limited | Private company limited by shares | Live |
| Lee Yun Engineering Limited | Private company limited by shares | Live |
| ZONHR ENVIRONMENTAL PROTECTION STOCK CO., LIMITED | Private company limited by shares | Live |
| GUANG KE ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| ENERSTAR TECHNOLOGIES LIMITED | Private company limited by shares | Live |
| New Smart Energy Group Limited | Private company limited by shares | Live |