| CALLIS COMPANY LIMITED | Private company limited by shares | Dissolved |
| CALLISIA COMPANY LIMITED | Private company limited by shares | Live |
| CALLISON ARCHITECTURE (ASIA) LIMITED | Private company limited by shares | Dissolved |
| CallisonRTKL Asia Limited | Private company limited by shares | Live |
| CALLISTEMON LIMITED | Private company limited by shares | Dissolved |
| CALLISTO LIMITED | Private company limited by shares | Live |
| Callisto Company Limited | | Live |
| Callisto Enterprises Limited | Private company limited by shares | Live |
| CALLISTO HOLDING LIMITED | Private company limited by shares | Live |
| Callisto Investment Company Limited | Private company limited by shares | Live |
| CALLISTO INVESTMENTS LIMITED | Private company limited by shares | Live |
| Jiuding Callisto Limited | Private company limited by shares | Live |
| CALLISTO TECHNOLOGY LIMITED | Private company limited by shares | Live |