| CERO GROUP LIMITED | Private company limited by shares | Dissolved |
| Cero Interiors Limited | Private company limited by shares | Live |
| CEROC Limited | Private company limited by shares | Live |
| CEROC ORGANISATION (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| CEROCK CO. LIMITED | Private company limited by shares | Live |
| CERODIK LIMITED | Private company limited by shares | Dissolved |
| LAM SOON CEROIL LIMITED | Private company limited by shares | Dissolved |
| CEROILFOOD ENTERPRISES LIMITED | Private company limited by shares | Live |
| CERONA LIMITED | Private company limited by shares | Dissolved |
| CERONE CHINA LIMITED | Private company limited by shares | Live |
| CERONE CHINA INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| CERONTEL LIMITED | | Live |
| CEROS TECHNOLOGY LIMITED | Private company limited by shares | Live |
| CEROSOFT HK LIMITED | Private company limited by shares | Dissolved |
| CEROUS HK LIMITED | Private company limited by shares | Live |