| SIREALTON LIMITED | Private company limited by shares | Dissolved |
| SIRED TRADE COMPANY LIMITED | Private company limited by shares | Live |
| SIREDA LIMITED | Private company limited by shares | Live |
| Sireda Technology Co., Limited | Private company limited by shares | Live |
| SIREDA TECHNOLOGIES (HONG KONG) CO., LIMITED | Private company limited by shares | Live |
| SIREE HONGKONG CO., LIMITED | Private company limited by shares | Live |
| SIREGRAND INDUSTRIAL LIMITED | Private company limited by shares | Live |
| SIREN LIMITED | Private company limited by shares | Live |
| SIREN E&P LIMITED | Private company limited by shares | Live |
| Siren Limited | | Live |
| SIREN KOREAN CLOTHING COMPANY LIMITED | Private company limited by shares | Dissolved |
| Siren Engineering Company Limited | | Live |
| SIREN FASHION LIMITED | Private company limited by shares | Dissolved |
| FIJI SIREN LIMITED | Private company limited by shares | Live |
| SIREN BEAUTY GROUP LIMITED | Private company limited by shares | Dissolved |
| ITALY COLYRONA (SINGAPORE SIREN) INTERNATIONAL GROUP LIMITED | Private company limited by shares | Dissolved |
| SIRENA LIMITED | Private company limited by shares | Live |
| SIRENA (TAIWAN) MFG. CO., LIMITED | Private company limited by shares | Live |
| Guangzhou Sirena Co., Limited | Private company limited by shares | Live |
| GUANGZHOU SIRENA SHOES CO., LIMITED | Private company limited by shares | Live |
| SIRENE FASHIONS LIMITED | Private company limited by shares | Dissolved |
| SIRENE STRATEGY LIMITED | Private company limited by shares | Live |
| SIRENS PRODUCTIONS LIMITED | Private company limited by shares | Live |
| SIRENSENSE COMPANY LIMITED | Private company limited by shares | Dissolved |
| SIREPE INTERNATIONAL TRADING CO., LIMITED | Private company limited by shares | Dissolved |
| sirerwin Limited | Private company limited by shares | Live |
| SIRESOFT TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Dissolved |
| SIRET Systems Limited | | Live |
| Sirex Limited | | Live |
| SIREY FANDA LIMITED | Private company limited by shares | Live |