| Company Name | Type | Status |
|---|---|---|
| CO.OT COMPANY LIMITED | Private company limited by shares | Dissolved |
| COOTAG LIMITED | Private company limited by shares | Dissolved |
| COOTECH HK CO., LIMITED | Private company limited by shares | Live |
| COOTEHILL LIMITED | Private company limited by shares | Live |
| CooTek HongKong Limited | Private company limited by shares | Live |
| COOTE'S TRADING LIMITED | Private company limited by shares | Dissolved |
| Cootie Catcher Limited | Private company limited by shares | Live |