| Company Name | Type | Status |
|---|---|---|
| KARSTADT INTERNATIONAL TRADE LIMITED | Private company limited by shares | Live |
| KARSTAR COMPANY LIMITED | Private company limited by shares | Dissolved |
| KARSTEN LIMITED | Private company limited by shares | Live |
| KARSTEN ENTERPRISES LIMITED | Private company limited by shares | Live |
| Hong Kong Karstone Technology Co., Limited | Private company limited by shares | Live |