| Smartron Limited | | Live |
| TECHEL SMARTRONICS LIMITED | Private company limited by shares | Live |
| SMARTROY LIMITED | Private company limited by shares | Dissolved |
| SMARTRTOYS LIMITED | Private company limited by shares | Dissolved |
| Smartrtoys Limited | Private company limited by shares | Live |
| Smartrue Limited | | Live |
| SMARTS COMPANY LIMITED | Private company limited by shares | Dissolved |
| Dog Smarts Limited | Private company limited by shares | Dissolved |
| SMARTS (ASIA) LIMITED | Private company limited by shares | Live |
| SMARTS CONSULTANCY LIMITED | Private company limited by shares | Live |
| SMARTS TRADE CO LIMITED | | Live |
| SMARTSCORE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SMARTSEA INTERNATIONAL (HK) CO., LIMITED | Private company limited by shares | Live |
| SMART-SECURITY LIMITED | Private company limited by shares | Dissolved |
| Smartshop Limited | Private company limited by shares | Live |
| SmartShopping Limited | Private company limited by shares | Live |
| Smartsila Limited | | Live |
| SMARTSILK GARMENTS LIMITED | Private company limited by shares | Dissolved |
| SMARTSINO LIMITED | Private company limited by shares | Live |
| SmartSkill Limited | Private company limited by shares | Dissolved |
| Smartsku Limited | | Live |
| SMARTSOAR LIMITED | Private company limited by shares | Dissolved |
| ASIA SMARTSOFT COMPANY LIMITED | Private company limited by shares | Live |
| SMARTSOFT CO., LIMITED | Private company limited by shares | Live |
| SMARTSOFT ENTERPRISES LIMITED | Private company limited by shares | Live |
| SMARTSOFT SYSTEM COMPANY LIMITED | Private company limited by shares | Live |
| SMARTSOFT TECHNOLOGY LIMITED | Private company limited by shares | Live |
| SMART-SOLUTION GROUP LIMITED | Private company limited by shares | Live |
| SMARTSOME LIMITED | Private company limited by shares | Dissolved |
| SMARTSON ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SMARTSON INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| SMARTSON PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| SMARTSONIC LIMITED | Private company limited by shares | Live |
| SMARTSONIC HK LIMITED | Private company limited by shares | Live |
| Smartsourcing Holdings Limited | Private company limited by shares | Live |
| SmartSpace Limited | Private company limited by shares | Live |
| SmartSpace Systems Limited | Private company limited by shares | Live |
| SmartSphere Limited | | Live |
| SMARTSQUARE.COM LIMITED | Private company limited by shares | Dissolved |
| SMARTSTATION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| Smartstone Minerals Limited | | Live |
| SmartStone Systems Limited | Private company limited by shares | Live |
| WORKABLE SMARTSTORE LIMITED | Private company limited by shares | Live |
| SmartStream Technologies (Hong Kong) Limited | Private company limited by shares | Live |
| SMARTSTRONG INDUSTRIAL (HK) CO., LIMITED | Private company limited by shares | Live |
| SmartStyle Limited | Private company limited by shares | Live |
| SMARTSURE LIMITED | Private company limited by shares | Dissolved |
| SMARTSURE LIMITED | Private company limited by shares | Live |
| SmartSyn Technology Limited | | Live |
| SMARTSYS LIMITED | Private company limited by shares | Live |
| SMARTTA TRADE CO., LIMITED | Private company limited by shares | Live |
| Smarttax Consulting Limited | | Live |
| Global Smart-Team Company Limited | Private company limited by shares | Live |
| Smartteam Pacific Limited | | Live |
| Smart-Tec Company Limited | Private company limited by shares | Live |
| SMART-TECH COMPANY LIMITED | Private company limited by shares | Live |
| SMARTTECH BUY LIMITED | Private company limited by shares | Live |
| SMARTTECH HK PTE LIMITED | | Live |
| SmartTech Creative Limited | Private company limited by shares | Live |
| eCare SmartTech Limited | Private company limited by shares | Dissolved |
| SmartTech Innovations Limited | | Live |
| SMARTTEK LIMITED | Private company limited by shares | Live |
| U.S. SMART-TEL (CHINA) LIMITED | Private company limited by shares | Dissolved |
| SMARTTEL (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| SMART-TEX COMPANY LIMITED | Private company limited by shares | Dissolved |
| SMARTTIME INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| SMARTTIMES TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Hong Kong SmartTop Technology Co., Limited | Private company limited by shares | Live |
| SMARTTOP OPTICAL LIMITED | Private company limited by shares | Live |
| SmartTrak Solar Systems HongKong Limited | Private company limited by shares | Live |
| SmartTravel Limited | Private company limited by shares | Live |
| SMART-TRONICS COMPANY LIMITED | Private company limited by shares | Live |
| SMARTTRUST LIMITED | Private company limited by shares | Dissolved |
| Smartu Technology Limited | | Live |
| SMARTUK HOLDINGS LIMITED | Private company limited by shares | Live |
| SMARTUNE LIMITED | Private company limited by shares | Dissolved |
| SMARTUNIT LIMITED | Private company limited by shares | Dissolved |
| SMARTUP CHINA LIMITED | Private company limited by shares | Live |
| SMARTUP INVESTMENT LIMITED | Private company limited by shares | Live |
| SMARTURN LIMITED | Private company limited by shares | Dissolved |
| SMARTUTORIAL LIMITED | Private company limited by shares | Live |
| SMARTV LIMITED | Private company limited by shares | Live |
| SmarTV Technologies Limited | Private company limited by shares | Dissolved |
| SMARTV TECHNOLOGIES (HK) LIMITED | Private company limited by shares | Dissolved |
| SmartVapor Technology Co., Limited | | Live |
| Smartvend Limited | | Live |
| SMART-VIET Enterprise Limited | Private company limited by shares | Live |
| SMARTVIEW HOLDING LIMITED | Private company limited by shares | Dissolved |
| SMARTVIEW HOLDING LIMITED | Private company limited by shares | Live |
| SMARTVIEWER TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| SMARTVILLE LIMITED | Private company limited by shares | Dissolved |
| Smartvin Technology Limited | | Live |
| SmartViser Consultancy Limited | | Live |
| SMARTVISION LIMITED | Private company limited by shares | Live |
| SMARTVISION SOLUTION LIMITED | | Live |
| Smartvisit Limited | Private company limited by shares | Live |
| SmartVoice Systems Limited | Private company limited by shares | Live |
| SMARTVOTE LIMITED | Private company limited by shares | Live |
| SmartVPS Limited | Private company limited by shares | Live |
| SMARTWALL ELECTRONICS COMPANY LIMITED | Private company limited by shares | Dissolved |