| ECOS LIMITED | Private company limited by shares | Dissolved |
| ECOS ECOS LIMITED | Private company limited by shares | Dissolved |
| E.C.O.S Limited | Private company limited by shares | Live |
| Ecosafe Asia Limited | Private company limited by shares | Live |
| ECOSAGE LIMITED | Private company limited by shares | Live |
| LED EcoSave Limited | Private company limited by shares | Live |
| NIPOVIO Eco-Science & Technology (Hong Kong) Limited | Private company limited by shares | Live |
| Ecosea Oil Limited | Private company limited by shares | Live |
| ECOSEB LIMITED | Private company limited by shares | Live |
| ECOSEC LIMITED | Private company limited by shares | Dissolved |
| ECOSEL HK LIMITED | | Live |
| ECOSELECTS LIMITED | Private company limited by shares | Dissolved |
| Ecosen Tech Industrial Co., Limited | | Live |
| ECOSERVE LIMITED | Private company limited by shares | Live |
| ECO-SERVE.COM LIMITED | Private company limited by shares | Dissolved |
| Special Trillions Eco-Service Engineering Limited | Private company limited by shares | Live |
| ECOSFERA LIMITED | Private company limited by shares | Dissolved |
| ECOSHINE LIGHTING COMPANY LIMITED | Private company limited by shares | Live |
| ECOSHINE TRADING LIMITED | | Live |
| ECO-SHOP LIMITED | Private company limited by shares | Dissolved |
| ECOSHOPPINGNET LIMITED | Private company limited by shares | Dissolved |
| ECOSI TECHNOLOGY LIMITED | | Live |
| ECO-SKY TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| Ecosky Engineering Limited | Private company limited by shares | Live |
| Ecosky International Limited | Private company limited by shares | Live |
| ECOSLAMP INTERNATIONAL LIMITED | Private company limited by shares | Live |
| ecoSmart Limited | Private company limited by shares | Live |
| ECO-SMART GARDEN CO., LIMITED | Private company limited by shares | Dissolved |
| NEW ECO-Smart Machinery Co., Limited | Private company limited by shares | Live |
| EcoSmart Energy Investment Limited | Private company limited by shares | Live |
| EcoSmart Solar Engineering Limited | | Live |
| EcoSmart Green Charging Limited | | Live |
| EcoSmart Energy Group Limited | Private company limited by shares | Live |
| Eco-Smart Innovation Company Limited | Private company limited by shares | Live |
| EcoSmart Solar Investment Limited | Private company limited by shares | Live |
| EcoSmart Energy Management Limited | Private company limited by shares | Live |
| EcoSmart Renewable Energy Management Company Limited | Private company limited by shares | Live |
| EcoSmart Solar Management Limited | Private company limited by shares | Live |
| EcoSmart Solar Power Limited | Private company limited by shares | Live |
| EcoSmart Solar One Limited | | Live |
| ECO-SMART TECHNOLOGY LIMITED | Private company limited by shares | Live |
| ECOSMARTER TECHNOLOGY LIMITED | Private company limited by shares | Live |
| ECOSMEDIC COMPANY LIMITED | Private company limited by shares | Live |
| E.COSMETICS LIMITED | Private company limited by shares | Dissolved |
| ECOSOFT SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| ECOSOFT SYSTEMS HK LIMITED | Private company limited by shares | Live |
| ECOSOFT SYSTEMS INC. ASIA LIMITED | Private company limited by shares | Dissolved |
| ECOSOFT SYSTEMS INC. (PRC) LIMITED | Private company limited by shares | Dissolved |
| EcoSol Energy Tech Co., Limited | Private company limited by shares | Live |
| EcoSol Global Limited | Private company limited by shares | Live |
| ECOSOL PV TECH CO., LIMITED | Private company limited by shares | Live |
| ECO-Solar Limited | Private company limited by shares | Dissolved |
| ECOSOLTHERM Limited | Private company limited by shares | Dissolved |
| LED & ECO-SOLUTIONS LIMITED | Private company limited by shares | Live |
| EcoSolutions Asia Limited | Private company limited by shares | Live |
| WAVE Eco-Solutions Limited | Private company limited by shares | Live |
| ECOSOLUXNS LIMITED | Private company limited by shares | Dissolved |
| ECOSOURCE LIMITED | Private company limited by shares | Live |
| ECO-SOURCES HK LIMITED | Private company limited by shares | Live |
| ECOSPACE LIMITED | Private company limited by shares | Live |
| EcoSpan Company Limited | Private company limited by shares | Live |
| EcoSpan Holdings Limited | Private company limited by shares | Live |
| ECOSPARKS COMPANY LIMITED | Private company limited by shares | Live |
| ECOSPECTRUM CHINA LIMITED | Private company limited by shares | Live |
| Ecospore Limited | Private company limited by shares | Live |
| ECOSPORT ENTERPRISE LIMITED | Private company limited by shares | Live |
| Ecospring Company Limited | Private company limited by shares | Live |
| ECOSR CO., LIMITED | Private company limited by shares | Live |
| ECOSS INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| ECOSTA HK LIMITED | Company limited by guarantee | Live |
| ECOSTAR LIMITED | Private company limited by shares | Dissolved |
| EcoStar Limited | Private company limited by shares | Live |
| ECOSTAR (ASIA) CO., LIMITED | Private company limited by shares | Dissolved |
| QINGDAO ECOSTAR TIRE CO., LIMITED | Private company limited by shares | Live |
| HONGKONG ECOSTAR RESOURCE LIMITED | Private company limited by shares | Live |
| EcoStar Xing Yao International Trade co., Limited | Private company limited by shares | Live |
| Ecostar Products Trading Limited | Private company limited by shares | Live |
| ECO-STREAM LIMITED | Private company limited by shares | Live |
| ECOSTRUITI LIMITED | Private company limited by shares | Dissolved |
| EcoStyle Limited | Private company limited by shares | Dissolved |
| ECOSUE GROUP LIMITED | Private company limited by shares | Live |
| Zhejiang Ecosun Solar Technology And Trading Co., Limited | Private company limited by shares | Live |
| ECOSUN LIGHTING CO., LIMITED | Private company limited by shares | Live |
| Ecosun LED Lighting Co., Limited | Private company limited by shares | Live |
| ECOSUN TECHNOLOGY GROUP CO., LIMITED | Private company limited by shares | Live |
| ECOSUN ELECTRONIC TECHNOLOGY LIMITED | Private company limited by shares | Live |
| ECOSUPPLIER ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| RICICLARE ECO-SUSTAIN ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| Ecosustainable Group Limited | Private company limited by shares | Live |
| YONG XU DAO ECO-SUSTAINABLE SOLUTIONS LIMITED | Private company limited by shares | Live |
| ECOSWAY GREEN LIMITED | Private company limited by shares | Dissolved |
| eCosway.com (HK) Limited | Private company limited by shares | Live |
| WI ECOSYS CO LIMITED | Private company limited by shares | Live |
| Eco-Sys Action Foundation Limited | Company limited by guarantee | Live |
| ECO-SYS BIOLOGY SCI-TEC COMPANY LIMITED | Private company limited by shares | Live |
| HMB ECOSYS, CO., LIMITED | Private company limited by shares | Live |
| Ecosys Technology Limited | Private company limited by shares | Live |
| CCE ECOSYSTEM LIMITED | Private company limited by shares | Live |
| COL ECOSYSTEM LIMITED | Private company limited by shares | Live |
| ARM Innovation Ecosystem Accelerator Limited | Private company limited by shares | Live |