| Company Name | Type | Status |
|---|---|---|
| SUMIT LIMITED | Private company limited by shares | Live |
| SumiTech Company Limited | Private company limited by shares | Dissolved |
| SUMITOMO LIMITED | Private company limited by shares | Dissolved |
| SUMITOMO ELECTRIC ASIA, LIMITED | Private company limited by shares | Live |
| SUMITON COMPANY LIMITED | Private company limited by shares | Dissolved |
| Sumitpo Limited | Live | |
| SUMITRA LIMITED | Private company limited by shares | Dissolved |