| Company Name | Type | Status |
|---|---|---|
| UNIPHON INVESTMENT CO., LIMITED | Live | |
| UNIPHON INDUSTRIAL CO., LIMITED | Live | |
| UNIPHONE COMPANY LIMITED | Private company limited by shares | Dissolved |
| UNIPHONE LIMITED | Private company limited by shares | Live |
| UNI-PHONE MANUFACTURING LIMITED | Private company limited by shares | Dissolved |