| Company Name | Type | Status |
|---|---|---|
| PIEZ ACCELERATE LIMITED | Private company limited by shares | Live |
| PIEZO DRIVER LIMITED | Private company limited by shares | Live |
| PiezoHK Limited | Live | |
| PIEZOTEC LIMITED | Private company limited by shares | Live |
| PIEZOTEC PRODUCTS LIMITED | Private company limited by shares | Live |
| PIEZZA COMPANY LIMITED | Private company limited by shares | Dissolved |