| ALPHATEC HK LIMITED | Private company limited by shares | Live |
| ALPHATEC LIMITED | Private company limited by shares | Live |
| ALPHATEC CONNEX LIMITED | Private company limited by shares | Live |
| ALPHATEC MACHINERY LIMITED | Private company limited by shares | Live |
| Alphatech Pro Limited | Private company limited by shares | Live |
| Alphatech Limited | Private company limited by shares | Live |
| AlphaTech Limited | Private company limited by shares | Live |
| AJS AlphaTech Limited | Private company limited by shares | Live |
| ALPHA&TECH COMPANY LIMITED | Private company limited by shares | Live |
| AlphaTech Business Connect Company Limited | | Live |
| ALPHA-TECH ENTERPRISE LIMITED | Private company limited by shares | Live |
| ALPHA-TECH INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| AlphaTech Projects Limited | Private company limited by shares | Live |
| ALPHATECH SOLUTIONS LIMITED | Private company limited by shares | Dissolved |
| Alphatech Systems Limited | Private company limited by shares | Live |
| ALPHATECHNIC COMPANY LIMITED | Private company limited by shares | Dissolved |
| ALPHATECHNIK ENGINEERING & CONSULTANCY LIMITED | Private company limited by shares | Dissolved |