| Chinese Society of Echocardiography Limited | | Live |
| Echocider Limited | Private company limited by shares | Live |
| ECHODYNE ELECTRONICS CORPORATION LIMITED | Private company limited by shares | Live |
| echoecho Limited | Private company limited by shares | Live |
| DRAGON ECHOES CO., LIMITED | | Live |
| ECHOES INTERNATIONAL CO., LIMITED | Private company limited by shares | Dissolved |
| Echoes Creative Limited | | Live |
| Delightful Echoes Investment Limited | Private company limited by shares | Live |
| ECHOES ON EARTH COMPANY LIMITED | Private company limited by shares | Live |
| ECHOES (HK) GROUP CO., LIMITED | Private company limited by shares | Dissolved |
| Hong Kong Echoes Technology Co., Limited | | Live |
| ECHOES TRADING CO., LIMITED | Private company limited by shares | Live |
| ECHOES90 LIMITED | Private company limited by shares | Live |
| Echofex Limited | Private company limited by shares | Live |
| ECHO-GREAT LIMITED | Private company limited by shares | Live |
| Echoha Limited | Private company limited by shares | Live |
| ECHOICE LIMITED | Private company limited by shares | Dissolved |
| E-CHOICE LIMITED | Private company limited by shares | Dissolved |
| E-Choice Company Limited | Private company limited by shares | Live |
| CAPITAL ECHOICE LIMITED | Private company limited by shares | Live |
| E-CHOIZ LIMITED | Private company limited by shares | Dissolved |
| Echolectric Co., Limited | | Live |
| ECHOLIDAY COMPANY LIMITED | Private company limited by shares | Dissolved |
| ECHOLIDAY (HK) COMPANY LIMITED | Private company limited by shares | Dissolved |
| ECHOLOGY LIMITED | Private company limited by shares | Live |
| ECHOMARKS LIMITED | Private company limited by shares | Dissolved |
| ECHOMAX COMPANY LIMITED | Private company limited by shares | Live |
| ECHOMAX INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SHENZHEN ECHON TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Echonix Limited | Private company limited by shares | Live |
| ECHONOX LIMITED | Private company limited by shares | Dissolved |
| Happiness Echoo Limited | | Live |
| Echoose Industry Limited | Private company limited by shares | Live |
| ECHOPANS HANDPAN LIMITED | | Live |
| Echopharm Co., Limited | | Live |
| EchoRoaster Limited | Private company limited by shares | Live |
| Echos Limited | Private company limited by shares | Live |
| ECHO-SILK (HONG KONG) COMPANY LIMITED | | Live |
| ECHOSOFT LIMITED | Private company limited by shares | Dissolved |
| ECHO-SOUND LIMITED | Private company limited by shares | Dissolved |
| ECHO-SOUND MANUFACTURING (CHINA) LIMITED | Private company limited by shares | Dissolved |
| ECHO-SOUND PLASTIC LIMITED | Private company limited by shares | Dissolved |
| Echospace Limited | Private company limited by shares | Live |
| EchoSphere Limited | | Live |
| ECHOSTOCK LIMITED | Private company limited by shares | Dissolved |
| ECHOSTONE JEWEL CO. LIMITED | | Live |
| ECHOSUN LIMITED | Private company limited by shares | Dissolved |
| HK CBS Echosun Chunhui Education Technology Limited | | Live |
| Echotech Limited | | Live |
| ECHOTIME LIMITED | Private company limited by shares | Live |
| EchoTraverse Technology Co., Limited | | Live |
| ECHOUSE HK LIMITED | Private company limited by shares | Live |
| Echovisual Limited | Private company limited by shares | Live |
| ECHOVIVO LIMITED | Private company limited by shares | Live |
| ECHOW INVESTMENT CO., LIMITED | | Live |
| Echowall Limited | Private company limited by shares | Live |
| ECHROMA TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| ECHS LIMITED | Private company limited by shares | Live |
| ECHT INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| Echuang Future Limited | | Live |
| E-CHUN IRON STEEL ENGINEERING LIMITED | Private company limited by shares | Live |
| ECHUN TUTORIAL LIMITED | Private company limited by shares | Dissolved |
| ECHUS LIMITED | Private company limited by shares | Dissolved |
| ECIA CHIP CO., LIMITED | Private company limited by shares | Live |
| ECIG ASIA LIMITED | Private company limited by shares | Live |
| ECIG FIEND LIMITED | Private company limited by shares | Live |
| Nic Hit eCigs Limited | Private company limited by shares | Live |
| SHENZHEN ECIGTECH LIMITED | Private company limited by shares | Live |
| ECIGWAREHOUSE LIMITED | Private company limited by shares | Live |
| ECIJA LIMITED | Private company limited by shares | Live |
| E.CINAMONROLL LIMITED | | Live |
| ECINREBUNIC COMPANY LIMITED | Private company limited by shares | Live |
| ECinteract Company Limited | Private company limited by shares | Live |
| ECINVEST.COM LIMITED | Private company limited by shares | Dissolved |
| ECIOT LIMITED | Private company limited by shares | Live |
| eCIRCLE HONG KONG LIMITED | Private company limited by shares | Live |
| ECIRCUIT HOLDING LIMITED | Private company limited by shares | Live |
| ECIS Advisory Limited | | Live |
| ECISION LIMITED | Private company limited by shares | Dissolved |
| ECISON INT'L TRADE LIMITED | Private company limited by shares | Live |
| ECITON INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| ECITY COMPANY LIMITED | Private company limited by shares | Dissolved |
| e-city EV Limited | Private company limited by shares | Dissolved |
| E-CITY LIMITED | Private company limited by shares | Dissolved |
| E-City Limited | Private company limited by shares | Live |
| Eciv Limited | Private company limited by shares | Live |
| ECJamboree Production Limited | Private company limited by shares | Live |
| ECJOBWAY LIMITED | Private company limited by shares | Live |
| ECKART ASIA LIMITED | Private company limited by shares | Live |
| ECKERSLEY LIMITED | Private company limited by shares | Dissolved |
| Eckersley O'Callaghan Asia Limited | Private company limited by shares | Live |
| ECKERT ASIA LIMITED | Private company limited by shares | Dissolved |
| ECKFORD LIMITED | Private company limited by shares | Live |
| CAMBRIDGE KENYON & ECKHARDT (TAIWAN) LIMITED | Private company limited by shares | Dissolved |
| ecki b. Hong Kong Limited | Private company limited by shares | Live |
| ECKINGTON LIMITED | Private company limited by shares | Live Ceased dormancy on 15-Dec-2005 |
| ECKLAM LIMITED | Private company limited by shares | Dissolved |
| ECKLESIA LIMITED | Private company limited by shares | Dissolved |
| ECKMAN TECHNOLOGY LIMITED | Private company limited by shares | Live |
| ECKMAR LIMITED | Private company limited by shares | Dissolved |