| Company Name | Type | Status |
|---|---|---|
| SYSO ENTERPRISES & CO LIMITED | Private company limited by shares | Dissolved |
| SYSOFT LIMITED | Private company limited by shares | Dissolved |
| SYS-OLOGY HONG KONG LIMITED | Private company limited by shares | Live |
| Sylvie & Syson Limited | Live | |
| SysOp Limited | Private company limited by shares | Live |