| Smart-G Learning Centre Limited | Private company limited by shares | Live |
| SMARTGA LIMITED | Private company limited by shares | Live Commenced dormancy on 15-Oct-2001 |
| SmartGames Limited | Private company limited by shares | Live |
| WAH TAT SMARTGAS CO., LIMITED | Private company limited by shares | Dissolved |
| SMARTGE ENGINEERING LIMITED | | Live |
| SMARTGEM LIMITED | Private company limited by shares | Live |
| Smartgen Motors Company Limited | | Live |
| SmartGini Limited | Private company limited by shares | Live |
| Smartgizmoworld Limited | | Live |
| SMARTGLOBE LIMITED | Private company limited by shares | Dissolved |
| SmartGo Company Limited | Private company limited by shares | Dissolved |
| SMARTGO LIMITED | Private company limited by shares | Live |
| SMARTGO TECHNOLOGY LIMITED | Private company limited by shares | Live |
| SMARTGOAL LIMITED | Private company limited by shares | Live |
| SMARTGOLD LIMITED | Private company limited by shares | Dissolved |
| SMARTGOLD LIMITED | Private company limited by shares | Live |
| HK SMARTGOLD SHIPPING LIMITED | Private company limited by shares | Dissolved |
| SMARTGOOD INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SMARTGREEN LIMITED | Private company limited by shares | Live |
| SMARTGROUP MANUFACTURING LIMITED | Private company limited by shares | Live |
| SMARTGROUP TECHNOLOGIES LIMITED | Private company limited by shares | Live |
| Smartgroups Limited | Private company limited by shares | Live |
| SMART-GUIDE CO. LIMITED | Private company limited by shares | Dissolved |
| SmartGuru Limited | | Live |