| SmartN Limited | Private company limited by shares | Live |
| SMARTNAM TECHNOLOGY (HK) LIMITED | Private company limited by shares | Live |
| SMARTNESS LIMITED | Private company limited by shares | Live |
| SMARTNET LIMITED | Private company limited by shares | Live |
| Neo Smart-net Limited | Private company limited by shares | Live |
| Octopus SmartNet Global Company Limited | Private company limited by shares | Live |
| ITECH SMARTNET LIMITED | Private company limited by shares | Live |
| SMARTNET SYSTEM LIMITED | Private company limited by shares | Dissolved |
| SMARTNICE GROUP LIMITED | Private company limited by shares | Dissolved |
| SMARTNICE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SMARTNICE TRADING LIMITED | Private company limited by shares | Live |
| SMARTNLINK INDUSTRY HONG KONG LIMITED | Private company limited by shares | Live |