| CLEARS LIMITED | Private company limited by shares | Live |
| CLEARSIGHT LIMITED | Private company limited by shares | Dissolved |
| CLEARSIGHT GLOBAL LIMITED | | Live |
| Clearsight International Limited | | Live |
| ClearSign Asia Limited | Private company limited by shares | Live |
| CLEARSKIES LIMITED | Private company limited by shares | Dissolved |
| Clearskies Production Company Limited | Private company limited by shares | Dissolved |
| USA MIAMI CLEARSKY INT'L (H.K.) PURGE ALCOHOLISM INVESTIGATE CENTER CO., LIMITED | Private company limited by shares | Dissolved |
| Clearsky Electronics Limited | Private company limited by shares | Live |
| Clearsky Solutions Limited | Private company limited by shares | Live |
| Clearstate Limited | Private company limited by shares | Dissolved |
| CLEARSTATE 88 LIMITED | Private company limited by shares | Live |
| CLEARSTONE LIMITED | Private company limited by shares | Dissolved |
| CLEARSTONE COMPANY LIMITED | Private company limited by shares | Dissolved |
| Clearstreams Capital Limited | | Live |
| Clearstyle Hong Kong Limited | Private company limited by shares | Live |
| ClearSun Limited | | Live |