| SICO LIMITED | Private company limited by shares | Dissolved |
| SICO LIMITED | Private company limited by shares | Live |
| SICO INC LIMITED | Private company limited by shares | Live |
| SICO INDUSTRY CO., LIMITED | Private company limited by shares | Live |
| SICO OFFICE FURNITURE AND DESIGN COMPANY LIMITED | Private company limited by shares | Dissolved |
| SICO ELECTRONIC LIMITED | Private company limited by shares | Live |
| SICO ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SICO ENTERPRISES LIMITED | Private company limited by shares | Live |
| SICO GLOBAL LIMITED | Private company limited by shares | Live |
| SICO (Hong Kong) Limited | Private company limited by shares | Dissolved |
| SICO (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| SICO INDUSTRIAL LIMITED | Private company limited by shares | Live |
| SICO INNOVATION LIMITED | Private company limited by shares | Live |
| SICO INVESTMENT LIMITED | Private company limited by shares | Live |
| SICO MATERIAL TECHNOLOGY LIMITED | Private company limited by shares | Live |
| SICO SOLUTIONS LIMITED | Private company limited by shares | Live |
| SICO TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| SICO TRADING COMPANY LIMITED | Private company limited by shares | Live |
| SICOL LIMITED | Private company limited by shares | Live |
| SICOL ENTERPRISE CO., LIMITED | Private company limited by shares | Live |
| SICOLAND INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| SICOLE SHOES INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| Sicolinx Limited | Private company limited by shares | Live |
| SICOM LIMITED | Private company limited by shares | Dissolved |
| SICOM ELECTRONICS HONG KONG CO. LIMITED | Private company limited by shares | Live |
| SICOM TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| SICON LIMITED | Private company limited by shares | Live |
| SICON CORPORATION LIMITED | Private company limited by shares | Live |
| N. SICON ELECTRONICS (HK) LIMITED | Private company limited by shares | Dissolved |
| Sicon Electronics (Hong Kong) Limited | Private company limited by shares | Live |
| SICON ENGINEERING LIMITED | Private company limited by shares | Live |
| SICON ENTERPRISE LIMITED | Private company limited by shares | Live |
| SICON IMPORT AND EXPORT CO., LIMITED | Private company limited by shares | Live |
| SICON EXPRESS (HK) LIMITED | Private company limited by shares | Live |
| SICON GROUP S.R.L LIMITED | | Live |
| SOCOMEC SICON HONG KONG LIMITED | Private company limited by shares | Dissolved |
| SICON ENTERPRISE (HONGKONG) LIMITED | Private company limited by shares | Live |
| SICON INTERNATIONAL LIMITED | Private company limited by shares | Live |
| Sicon Life Limited | Private company limited by shares | Dissolved |
| SICON EXPRESS LINE LIMITED | Private company limited by shares | Live |
| SICON PAPER CO., LIMITED | | Live |
| SICON TECHNOLOGY (HK) CO., LIMITED | | Live |
| SICON TRADE LIMITED | Private company limited by shares | Dissolved |
| SICON INTERNATIONAL TRADE CO., LIMITED | Private company limited by shares | Live |
| SICON TRADING CO., LIMITED | Private company limited by shares | Dissolved |
| SICONA SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| Siconi Limited | Private company limited by shares | Live |
| Sicoo Co., Limited | Private company limited by shares | Live |
| SICOO (HK) INDUSTRIAL CO., LIMITED | Private company limited by shares | Dissolved |
| SICORE LIMITED | Private company limited by shares | Dissolved |
| SICORE CORP LIMITED | Private company limited by shares | Live |
| SICORE TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| Sicore Technology Company Limited | | Live |
| SICOSYN LIMITED | Private company limited by shares | Live |
| Sicovay Technology Company Limited | Private company limited by shares | Live |