| Company Name | Type | Status |
|---|---|---|
| MAINTECH LIMITED | Private company limited by shares | Dissolved |
| MAINTECH LIMITED | Private company limited by shares | Live |
| MAINTECH ELECTRICAL & MECHANICAL CO LIMITED | Private company limited by shares | Live |
| MAINTECH ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| MAINTECH ENTERPRISES LIMITED | Private company limited by shares | Live |
| MAINTECH INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| Maintech System HK Limited | Private company limited by shares | Live |