| 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 |
| AGRIAQUA ECOSYSTEM BIOTEC CHINA COMPANY LIMITED | Private company limited by shares | Dissolved |
| Artistic Ecosystem Limited | | Live |
| Beauty EcoSystem HK Limited | Private company limited by shares | Live |
| Blueshark Ecosystem Limited | | Live |
| Fingers Encrypto Ecosystem Limited | Private company limited by shares | Live |
| HK ECOSYSTEM FISH FARMING LIMITED | Private company limited by shares | Live |
| GLOBE ENERGY ECO-SYSTEM (ASIA) LIMITED | Private company limited by shares | Dissolved |
| HK RAISING HEALTH ECOSYSTEM & RESEARCH ASSOCIATION LIMITED | Private company limited by shares | Dissolved |
| ECOSYSTEM (H.K.) LIMITED | Private company limited by shares | Dissolved |
| UFO Eco-system (Hong Kong) Limited | Private company limited by shares | Live |
| iAuto Ecosystem Limited | Private company limited by shares | Live |
| FIRST ECOSYSTEM BIOTEC INT'L GROUP LIMITED | Private company limited by shares | Dissolved |
| Makers Ecosystem Limited | Private company limited by shares | Live |
| Ecosystem Management Limited | Private company limited by shares | Live |
| China Ecosystem New Material Co., Limited | Private company limited by shares | Live |
| Hash Rate Ecosystem Limited | Private company limited by shares | Live |
| ROBOTOU ECOSYSTEM COMPANY LIMITED | Private company limited by shares | Live |
| Shunwei Ecosystem (Hong Kong) Limited | Private company limited by shares | Live |
| ETH Smart Contract Tech Ecosystem Limited | Private company limited by shares | Live |
| BIA ECOSYSTEM TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Static Valley Ecosystem Limited | | Live |
| WEALTH ECOSYSTEM LIMITED | | Live |
| ECOSYSTEMS LIMITED | Private company limited by shares | Live |
| LED ECOSYSTEMS LIMITED | Private company limited by shares | Dissolved |
| Digital Ecosystems Group Limited | | Live |
| HDDE Health Devices & Data Ecosystems Limited | Private company limited by shares | Live |
| HONG KONG CLEANTECH ECOSYSTEMS GROUP LIMITED | Private company limited by shares | Live |
| Idea Ecosystems Limited | Private company limited by shares | Live |
| Signature EcoSystems Technologies Limited | Private company limited by shares | Live |
| Tektos Ecosystems Limited | Private company limited by shares | Live |
| AUSTRALIA ECOT GROUP (CHINA) HOLDING LIMITED | Private company limited by shares | Dissolved |
| ECOT Technology Inc. Limited | Private company limited by shares | Live |
| ECOTEC LIMITED | Private company limited by shares | Dissolved |
| ECOTEC LIMITED | Private company limited by shares | Live |
| ECOTEC HK LIMITED | Private company limited by shares | Live |
| ECOTEC ASIA LIMITED | Private company limited by shares | Dissolved |
| ECO-TEC NONWOVEN LIMITED | Private company limited by shares | Live |
| EcoTec Projects Limited | Private company limited by shares | Live |
| Ecotec Resources Limited | | Live |
| ECOTEC TECHNOLOGY LIMITED | Private company limited by shares | Live |