| E-TECH MANAGEMENT CONSULTANTS LIMITED | Private company limited by shares | Live |
| E-TECH SYSTEM CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| ETECH CONTROL COMPANY LIMITED | Private company limited by shares | Live |
| ETECH CONTROL (ASIA) COMPANY LIMITED | Private company limited by shares | Live |
| ETECH CORE COMPANY LIMITED | Private company limited by shares | Dissolved |
| ETECH CORPORATION LIMITED | Private company limited by shares | Live |
| E-TECH CORPORATION LIMITED | Private company limited by shares | Live |
| E-TECH TRADING DEVELOP LIMITED | Private company limited by shares | Live |
| E-TECH DEVELOPMENT LIMITED | Private company limited by shares | Live |
| ETECH (ASIA) DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| E-TECH Electronics Development Limited | Private company limited by shares | Live |
| ETECH INDUSTRIAL DEVELOPMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| E-TECH INDUSTRIAL DEVELOPMENT LIMITED | Private company limited by shares | Live |
| VCWT E-Tech Development Co., Limited | Private company limited by shares | Dissolved |
| DiDo (Ningbo) E-Tech Co., Limited | Private company limited by shares | Live |
| E-TECH DIGITAL LIMITED | Private company limited by shares | Live |
| E-TECH EDUCATION I T LIMITED | Private company limited by shares | Live |
| E-Tech Electrical Company Limited | Private company limited by shares | Live |
| E-TECH ELECTRICAL & ELECTRONIC CO., LIMITED | Private company limited by shares | Live |
| E-TECH ELECTRONICS LIMITED | Private company limited by shares | Live |
| E-TECH ELECTRONICS (ASIA) LIMITED | Private company limited by shares | Live |
| ETECH ELECTRONICS (HONG KONG) LIMITED | Private company limited by shares | Live |
| E-TECH ELEX LIMITED | Private company limited by shares | Dissolved |
| E-TECH ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| GAP E-Tech Engineering Limited | Private company limited by shares | Live |
| e-Tech Engineering Company Limited | Private company limited by shares | Live |
| E-TECH CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| E-TECH ENGINEERING ELECTRON LIMITED | Private company limited by shares | Dissolved |
| E-Tech Heating Engineering Limited | Private company limited by shares | Live |
| E-Tech Hotel Engineering Limited | Private company limited by shares | Live |
| E-TECH REFRIGERATING ENGINEERING LIMITED | Private company limited by shares | Live |
| E-TECH ENVIRONMENTAL ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| ETECH PORT EQUIPMENT (CHINA) LIMITED | Private company limited by shares | Live |
| E-TECH MARINE EQUIPMENT SERVICE CO., LIMITED | Private company limited by shares | Live |
| E-TECH ELECTRICAL EQUIPMENT SUPPLIERS COMPANY LIMITED | Private company limited by shares | Live |
| E-TECH FINANCE COMPANY LIMITED | Private company limited by shares | Live Ceased dormancy on 19-May-2016 |
| ETECH FIRE LIMITED | Private company limited by shares | Live |
| FLYING E-TECH CO., LIMITED | Private company limited by shares | Dissolved |
| ETECH GARMENT LIMITED | Private company limited by shares | Dissolved |
| E-TECH GLOBAL LIMITED | Private company limited by shares | Live |
| GOOD LUCK ETECH LIMITED | | Live |
| Great E-Tech Service Limited | Private company limited by shares | Live |
| E-TECH GROUP LIMITED | Private company limited by shares | Live |
| ETech ASIC Group (Hong Kong) Limited | | Live |
| ETECH TECHNOLOGY GROUP (HONGKONG) CO., LIMITED | Private company limited by shares | Live |
| E-TECH HEAT PUMPS LIMITED | Private company limited by shares | Live |
| Yu Qiu Etech (HK) Co., Limited | Private company limited by shares | Live |
| E-TECH MICROELECTRONICS (HK) CO., LIMITED | Private company limited by shares | Dissolved |
| E-tech (HK) Engineering Limited | Private company limited by shares | Live |
| E-TECH GROUP (HK) LIMITED | Private company limited by shares | Live |
| ETECH TECHNOLOGIES (HK) LIMITED | Private company limited by shares | Live |
| E-TECH TECHNOLOGIES INDUSTRIAL (HK) CO., LIMITED | Private company limited by shares | Live |
| E-TECH TECHNOLOGY (HK) LIMITED | Private company limited by shares | Live |
| ETECH (HK) TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| E-TECH TIANCHANG (HK) LIMITED | Private company limited by shares | Live |
| ETECH TRADING (H.K.) CO. LIMITED | Private company limited by shares | Dissolved |
| ETECH HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| E-Tech Holdings Limited | Private company limited by shares | Live |
| E-TECH CYBERNET HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| HK Hong Yu E-Tech Co., Limited | Private company limited by shares | Live |
| CHENG HONG E-TECH CO., LIMITED | Private company limited by shares | Live |
| Hong Kong ETECH Co., Limited | | Live |
| HONG KONG E-TECH COMPONENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| HONG KONG ETECH ELECTRONICS CORP LIMITED | Private company limited by shares | Live |
| Wai ETech Group ( Hong Kong) Limited | Private company limited by shares | Live |
| E-TECH HONG KONG LIMITED | Private company limited by shares | Dissolved |
| HONG KONG ETECH LIMITED | Private company limited by shares | Dissolved |
| E-Tech Hong Kong Limited | Private company limited by shares | Live |
| E-TECH SPORT (HONG KONG) LIMITED | Private company limited by shares | Live |
| HONG KONG ETECH SERVICE & TECHNOLOGY LIMITED | Private company limited by shares | Live |
| HONGKONG ETECH INTERNATIONAL INVESTMENT CO., LIMITED | Private company limited by shares | Live |
| HONGKONG E-TECH INDUSTRIAL CO., LIMITED | Private company limited by shares | Dissolved |
| HongKong eTech Integration Limited | Private company limited by shares | Dissolved |
| E-TECH LIGHTING (HONGKONG) LIMITED | Private company limited by shares | Live |
| HongKong ETECH Technology Co., Limited | Private company limited by shares | Live |
| E-tech Industrial Co., LIMITED | Private company limited by shares | Live |
| E-TECH ELECTRONIC INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Live |
| ETECH INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| E-Tech Industries Limited | Private company limited by shares | Live |
| E-TECH INDUSTRY CO., LIMITED | Private company limited by shares | Live |
| ETECH INFORMATION TECHNOLOGY (HK) COMPANY LIMITED | Private company limited by shares | Live |
| E-TECH INTERNATIONAL LIMITED | Private company limited by shares | Live |
| BYZO E-TECH INTERNATIONAL CO., LIMITED | Private company limited by shares | Dissolved |
| E-TECH INTERNATIONAL (H.K) CO., LIMITED | Private company limited by shares | Dissolved |
| ETECH ELECTRONIC INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| E-TECH ELECTRONICS INTERNATIONAL LIMITED | Private company limited by shares | Live |
| E-TECH GROUP (INTERNATIONAL) COMPANY LIMITED | Private company limited by shares | Live |
| eTech International Holding Group Limited | Private company limited by shares | Dissolved |
| 3W ETECH INTERNATIONAL INCORPORATED COMPANY LIMITED | Private company limited by shares | Live |
| E-TECH INDUSTRIAL (INTERNATIONAL) LIMITED | Private company limited by shares | Dissolved |
| E-TECH INTERNATIONAL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| Etech Parts International Limited | Private company limited by shares | Live |
| ETECH PLUS INTERNATIONAL LIMITED | Private company limited by shares | Live |
| E-TECH TECHNOLOGY INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| E-TECH INTERNATIONAL TRADING CO. LIMITED | Private company limited by shares | Dissolved |
| E-TECH INTERNATIONAL TRADING LIMITED | Private company limited by shares | Live |
| USA APPLE E-TECH GROUP INT'L DEVELOPMENT LIMITED | Private company limited by shares | Live |
| E-TECH INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| E-TECH INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| ZHONGSHAN INYAN E-TECH CO., LIMITED | Private company limited by shares | Live |