| MANTENNA WISI ENGINEERING COMPANY, LIMITED | Private company limited by shares | Live |
| WISI INTERNATIONAL HOLDING LIMITED | Private company limited by shares | Dissolved |
| WISI MANUFACTURING COMPANY LIMITED | Private company limited by shares | Live |
| WiSilica Hong Kong Limited | Private company limited by shares | Live |
| WISIM COMPANY LIMITED | Private company limited by shares | Dissolved |
| WISING COMPANY LIMITED | Private company limited by shares | Dissolved |
| WISING COMPANY LIMITED | Private company limited by shares | Live |
| Wision Association Limited | Company limited by guarantee | Live |
| WISION LIGHT CO., LIMITED | Private company limited by shares | Live |
| Wision (HK) Limited | Private company limited by shares | Live |
| HONG KONG WISION COMPANY LIMITED | Private company limited by shares | Live |
| Wision Sci&Tech Group Hong Kong Limited | | Live |
| WISION INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |