| Company Name | Type | Status |
|---|---|---|
| AMTECH LIMITED | Private company limited by shares | Live |
| AMTECH LLC LIMITED | Private company limited by shares | Live |
| AMTECH ASIA LIMITED | Private company limited by shares | Dissolved |
| AMTECH ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| Hong Kong AmTech International Trading and Investment Company Limited | Private company limited by shares | Live |
| AMTECH INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| AmTechProject Limited | Private company limited by shares | Live |