| Company Name | Type | Status |
|---|---|---|
| SUMTO LIMITED | Private company limited by shares | Dissolved |
| SUMTON LIMITED | Private company limited by shares | Live |
| SUMTONG INDUSTRY CO., LIMITED | Private company limited by shares | Live |
| Sumtop Trade Co., Limited | Private company limited by shares | Live |
| Sumtop Hong Kong Limited | Private company limited by shares | Live |
| SUMTOP FINISHING MACHINE CO., LIMITED | Private company limited by shares | Live |
| SumTotal Systems Limited | Private company limited by shares | Live |