| ONSTAR COMPANY LIMITED | Private company limited by shares | Dissolved |
| ONSTAR (ASIA) LIMITED | Private company limited by shares | Live |
| Onstar (Asia) Limited | Private company limited by shares | Live |
| ONSTAR (CHINA) LIMITED | Private company limited by shares | Dissolved |
| ONSTAR CORPORATION LIMITED | Private company limited by shares | Live |
| ONSTAR ELECTRONICS LIMITED | Private company limited by shares | Dissolved |
| ONSTAR ELECTRONICS CO., LIMITED | Private company limited by shares | Live |
| ONSTAR ELECTRONICS GROUP CO., LIMITED | | Live |
| ONSTAR ENGINEERING LIMITED | Private company limited by shares | Live |
| ONSTAR ENTERPRISES LIMITED | Private company limited by shares | Live |
| ONSTAR ESTATE LIMITED | Private company limited by shares | Dissolved |
| ONSTAR INTERNATIONAL EXPRESS LIMITED | Private company limited by shares | Dissolved |
| ONSTAR GROUP LIMITED | Private company limited by shares | Dissolved |
| OnStar Advisory Group Limited | Private company limited by shares | Live |
| ONSTAR (H.K.) LIMITED | Private company limited by shares | Live |
| ONSTAR GARMENT H.K. LIMITED | Private company limited by shares | Dissolved |
| ONSTAR INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| ONSTAR INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| ONSTAR INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| ONSTAR INVESTMENTS LIMITED | Private company limited by shares | Live |
| ONSTAR (OVERSEAS) LIMITED | Private company limited by shares | Dissolved |
| ONSTAR INTERNATIONAL TECH LIMITED | | Live |
| ONSTAR TECHNOLOGY LIMITED | Private company limited by shares | Live |