| SIRO LIMITED | Private company limited by shares | Dissolved |
| SAN SIRO LIMITED | Private company limited by shares | Live |
| SIROCCO COMPANY LIMITED | Private company limited by shares | Dissolved |
| SIROCCO LIMITED | Private company limited by shares | Dissolved |
| SIROCCO COMPANY LIMITED | Private company limited by shares | Dissolved |
| SIROCCO CAPITAL LIMITED | Private company limited by shares | Live |
| SIROCCO GROUP LIMITED | Private company limited by shares | Dissolved |
| Sirocco Service Group Limited | | Live |
| SIROCCO INVESTMENTS LIMITED | Private company limited by shares | Live |
| SIROCCO TECHNOLOGIES (HK) GROUP LIMITED | Private company limited by shares | Dissolved |
| SIROCCO TRADING COMPANY LIMITED | Private company limited by shares | Live |
| Siroccoworld Enterprise Company Limited | Private company limited by shares | Live |
| SIROFIL HONG KONG LIMITED | Private company limited by shares | Dissolved |
| VIBAR DOO SIROKI BRIJEG LIMITED | Private company limited by shares | Live |
| Sirolink Limited | Private company limited by shares | Live |
| Sirom Plastic Limited | Private company limited by shares | Live |
| SIRON (H.K) CO., LIMITED | Private company limited by shares | Dissolved |
| SIRON INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| Sirona Limited | Private company limited by shares | Dissolved |
| Sirona Capital Limited | Private company limited by shares | Live |
| Dentsply Sirona Limited | Private company limited by shares | Live |
| Sirona Dental Systems (HK) Limited | Private company limited by shares | Live |
| SIRONI C.I.S. LIMITED | Private company limited by shares | Live |
| SIROYA COLLECTIONS (HK) LIMITED | Private company limited by shares | Live |