| ECO-TIGER POWER ENERGY LIMITED | Private company limited by shares | Live |
| Mars Energy Education Co., Limited | | Live |
| Edwel Energy Limited | Private company limited by shares | Live |
| EECO ENERGY SYSTEM LIMITED | Private company limited by shares | Live |
| Eest Energy Company Limited | | Live |
| Effective Energy Limited | Private company limited by shares | Live |
| ELCpower Energy Limited | Private company limited by shares | Live |
| Energy Electric Limited | Private company limited by shares | Live |
| Advanced Electric Energy Limited | Private company limited by shares | Live |
| HK SMART ELECTRIC INTEGRATED ENERGY LIMITED | Private company limited by shares | Dissolved |
| NEW ENERGY ELECTRONICS LIMITED | Private company limited by shares | Dissolved |
| ENERGY ELECTRONICS LIMITED | Private company limited by shares | Dissolved |
| HK Energy Electronics Limited | Private company limited by shares | Live |
| New Energy (Hong Kong) Electronics Limited | Private company limited by shares | Live |
| POWER ENERGY ELECTRONICS LIMITED | Private company limited by shares | Live |
| ENERGY ELEMENTS LIMITED | Private company limited by shares | Dissolved |
| ELERIS ENERGY LIMITED | Private company limited by shares | Live |
| ELITE ENERGY LIMITED | Private company limited by shares | Live |
| ENERGY ELITE LIMITED | Private company limited by shares | Live |
| ELITE ENERGY LIMITED | Private company limited by shares | Live |
| ELITE ENERGY INVESTMENTS LIMITED | Private company limited by shares | Live |
| ELIXIR ENERGY LIMITED | Private company limited by shares | Dissolved |
| ELLULE ENERGY LIMITED | Private company limited by shares | Dissolved |
| EMERALD ENERGY LIMITED | Private company limited by shares | Live |
| ENERGY EMPIRE LIMITED | Private company limited by shares | Live |
| Enerlution Energy Limited | | Live |
| ENERGY ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| ENERGY ENGINEERING LIMITED | Private company limited by shares | Live |
| TOP ENERGY ENGINEERING LIMITED | Private company limited by shares | Live |
| PAC ENERGY ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| ECO Energy Engineering Limited | Private company limited by shares | Live |
| SUN NIK KA ENERGY ENGINEERING LIMITED | Private company limited by shares | Live |
| Hop Fai Energy Engineering Limited | Private company limited by shares | Live |
| GRAND ENERGY (ASIA) ENGINEERING LIMITED | Private company limited by shares | Live |
| CHAMPION RENEWABLE ENERGY ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| GRAND ENERGY ENGINEERING LIMITED | Private company limited by shares | Live |
| RENEWABLE ENERGY ENGINEERING LIMITED | | Live |
| MingWai Renewable Energy Engineering Company Limited | Private company limited by shares | Live |
| SHENDI NEW ENERGY ENGINEERING SERVICE LIMITED | Private company limited by shares | Live |
| Kee See Solar Energy Engineering Co. Limited | Private company limited by shares | Live |
| Enovolt Energy Company Limited | | Live |
| ENPOWER ENERGY HK CO., LIMITED | Private company limited by shares | Live |
| ENPRO ENERGY LIMITED | Private company limited by shares | Live |
| G ENERGY ENTERPRISE LIMITED | Private company limited by shares | Live |
| New Energy Enterprise Co. Limited | Private company limited by shares | Live |
| HB Energy Enterprise Limited | | Live |
| ENERGY ENTERPRISES LIMITED | Private company limited by shares | Live |
| TOP ENERGY ENTERPRISES LIMITED | Private company limited by shares | Live |
| NEW ENERGY ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| 3A Energy Enterprises Limited | Private company limited by shares | Live Commenced dormancy on 07-Jul-2014 |
| ENERGY ENTERPRISES LIMITED | Private company limited by shares | Live |
| LAWRENCE AVENUE ENTERPRISES (ENERGY) LIMITED | Private company limited by shares | Live |
| CENTURY ENERGY ENTERPRISES LIMITED | Private company limited by shares | Live |
| EASTERN ENERGY ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| GRAND ENERGY ENTERPRISES LIMITED | Private company limited by shares | Live |
| ENTROPY ENERGY LIMITED | Private company limited by shares | Live |
| UK CONNAUGHT ENVIRONMENTAL PROTECTION ENERGY TECHNOLOGY (HOLDING) LIMITED | Private company limited by shares | Live |
| CHINA ENERGY AND ENVIRONMENTAL PROTECTION AND CAPITAL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| CHINA ENERGY ENVIRONMENTAL PROTECTION HIGH-TECH INDUSTRY ASSOCIATION LIMITED | Private company limited by shares | Live |
| HK JINJUE SAVE ENERGY ENVIRONMENTAL PROTECTION TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| HUNG SING SOLAR ENERGY ENVIRONMENTAL PROTECTION LIMITED | Private company limited by shares | Live |
| Envision Energy Company Limited | Private company limited by shares | Live |
| Envision Renewable Energy Bangladesh Limited | Private company limited by shares | Live |
| Envision Energy Smart Software Limited | Private company limited by shares | Live |
| ENERGY EQUITY LIMITED | Private company limited by shares | Dissolved |
| ERDOS MINERALS AND ENERGY LIMITED | Private company limited by shares | Dissolved |
| ETERNAL ENERGY LIMITED | Private company limited by shares | Dissolved |
| HK Eternal Up Energy Limited | Private company limited by shares | Live |
| ETERNAL ENERGY INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| Eternal Solar Energy Limited | Private company limited by shares | Live |
| Eternal Energy (Zhangzhou) Investments Company Limited | Private company limited by shares | Live |
| EEC EUROPEAN ENERGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| EVER ENERGY LIMITED | Private company limited by shares | Live |
| Everbright Energy Limited | Private company limited by shares | Live |
| EVEREST ENERGY LIMITED | Private company limited by shares | Live |
| EVERGRAND ENERGY GROUP LIMITED | Private company limited by shares | Live |
| EVERLASTING ENERGY LIMITED | | Live |
| Everlasting Energy Technology Company Limited | Private company limited by shares | Live |
| Everming Solar Energy Limited | Private company limited by shares | Live |
| EVERTOP ENERGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| Energy Evolution Asia Limited | Private company limited by shares | Live |
| EXCEL ENERGY LIMITED | Private company limited by shares | Dissolved |
| EXCEL ENERGY INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| POWER EXCEL ENERGY LIMITED | Private company limited by shares | Live |
| EXCELLENT ENERGY LIMITED | Private company limited by shares | Dissolved |
| EXCELLENT ENERGY LIMITED | Private company limited by shares | Live |
| Exigo Energy Limited | Private company limited by shares | Live |
| Exmar Energy Hong Kong Limited | Private company limited by shares | Live |
| ASIA RENEWABLE ENERGY EXPERTS COMMITTEE LIMITED | Private company limited by shares | Dissolved |
| Export Energy Limited | Private company limited by shares | Live |
| APM Energy Export Limited | | Live |
| EXPORT ENERGY TRADE LIMITED | Private company limited by shares | Live |
| ENERGY EXPRESS LIMITED | Private company limited by shares | Dissolved |
| EXPRESS ENERGY LIMITED | Private company limited by shares | Live |
| ENERGY EXPRESS LIMITED | Private company limited by shares | Live |
| ENERGY EXPRESS CO., LIMITED | Private company limited by shares | Dissolved |
| ORIENT EXPRESS ENERGY SUPPLY CO., LIMITED | Private company limited by shares | Live |
| EXTRA ENERGY LIMITED | Private company limited by shares | Dissolved |
| Menar Energy Exxon Limited | Private company limited by shares | Live |
| EYEN ENERGY LIMITED | Private company limited by shares | Live |