| I-SMART LIMITED | Private company limited by shares | Live |
| KS iSmart Limited | Private company limited by shares | Live |
| I-SMART INC LIMITED | Private company limited by shares | Live |
| iSMART SRO LIMITED | Private company limited by shares | Live |
| ISMART ALLIANCE LIMITED | Private company limited by shares | Dissolved |
| I-SMART ASIA LIMITED | Private company limited by shares | Dissolved |
| I-SMART ELECTRONICS CO., LIMITED | Private company limited by shares | Live |
| ISMART OUTDOORS CO., LIMITED | Private company limited by shares | Live |
| iSmart Creation Limited | Private company limited by shares | Live |
| I-SMART DEVELOP LIMITED | Private company limited by shares | Dissolved |
| I-Smart Education Limited | Private company limited by shares | Live |
| ISMART ENGINEERING LIMITED | Private company limited by shares | Live |
| ISMART ENTERPRISES LIMITED | Private company limited by shares | Live |
| iSMART FUTURE TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Ismart Global Trading Limited | | Live |
| ISMART GROUP LIMITED | Private company limited by shares | Live |
| ISMART INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Live |
| iSmart Learning Limited | Private company limited by shares | Live |
| ISMART MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| iSmart Outdoor Advertising Limited | Private company limited by shares | Live |
| ISMART OVERSEAS LIMITED | Private company limited by shares | Live |
| I-SMART PRODUCTION LIMITED | | Live |
| ISMART SOLUTION LIMITED | Private company limited by shares | Live |
| iSmart Business Solution Limited | Private company limited by shares | Dissolved |
| iSmart Solutions Limited | Private company limited by shares | Live |
| I-SMART SYSTEM LIMITED | Private company limited by shares | Dissolved |
| I.SMART TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| ISMART TECHNOLOGY LIMITED | Private company limited by shares | Live |
| ISMARTA LIMITED | Private company limited by shares | Live |
| ISMARTCLUB.COM LIMITED | Private company limited by shares | Dissolved |
| iSmartCorp Limited | Private company limited by shares | Live |
| ISMARTDIGI LIMITED | Private company limited by shares | Live |
| i-smartech Limited | Private company limited by shares | Live |
| ismartek Co., Limited | Private company limited by shares | Live |
| ISMARTEK TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| ISMARTER TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| iSmartInfo Technology Hong Kong Limited | Private company limited by shares | Live |
| HONG KONG ISMARTS TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| ISMARTSEARCH TELECOMMUNICATIONS LIMITED | Private company limited by shares | Live |
| iSMART-Trend INTELLIGENT LIMITED | Private company limited by shares | Live |