| Company Name | Type | Status |
|---|---|---|
| ALTEN COMPANY LIMITED | Private company limited by shares | Live |
| ALTEN DAN LIMITED | Live | |
| Alten Expertise Co., Limited | Live | |
| Alten Garments Limited | Private company limited by shares | Live |
| ALTEN INTERNATIONAL LIMITED | Private company limited by shares | Live |
| ALTEN TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Altenberger Consulting Services Limited | Live | |
| Altenburger& Haskard Limited | Live | |
| ALTENFIELD INVESTMENTS LIMITED | Private company limited by shares | Dissolved |