| SPEEDWELL LIMITED | Private company limited by shares | Dissolved |
| SPEEDWELL COMPANY LIMITED | Private company limited by shares | Live |
| SPEEDWELL AUTOMOBILE COMPANY LIMITED | Private company limited by shares | Live |
| SPEEDWELL CORPORATION LIMITED | Private company limited by shares | Dissolved |
| SPEEDWELL DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| SPEEDWELL ELECTRICAL ENGINEERING LIMITED | Private company limited by shares | Live |
| SPEEDWELL ENGINEERING (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| SPEEDWELL ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SPEEDWELL (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| SPEEDWELL INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| SPEEDWELL INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SPEEDWELL INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SPEEDWELL (INTERNATIONAL) HOLDING CO. LIMITED | Private company limited by shares | Dissolved |
| SPEEDWELL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SPEEDWELL INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| SPEEDWELL (ASIA) PRINTING LIMITED | Private company limited by shares | Live |
| SPEEDWELL PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| SPEEDWELL SERVICES LIMITED | Private company limited by shares | Dissolved |