| CATO LIMITED | Private company limited by shares | Live |
| CATOCON LIMITED | Private company limited by shares | Dissolved |
| CATON ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| CATON GROUP LIMITED | Private company limited by shares | Live |
| CATON ADV (HONG KONG) LIMITED | Private company limited by shares | Live |
| Caton Networks Limited | Private company limited by shares | Live |
| Caton Technology (Asia) Limited | Private company limited by shares | Live |
| Catone Company Limited | Private company limited by shares | Dissolved |
| HONG KONG CATONGLOBAL TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| Catonic Limited | Private company limited by shares | Live |
| CATOO HOLDING LIMITED | | Live |
| Catoonizer Limited | Private company limited by shares | Live |
| Catopia Limited | | Live |
| Catopia Cattery and Trading Company Limited | | Live |
| CATOREX COMPANY LIMITED | Private company limited by shares | Dissolved |
| CATOSA INTERNATIONAL LIMITED | Private company limited by shares | Live |
| CATOSON COMPANY , LIMITED -THE- | Private company limited by shares | Live |
| CATOSPACE LIMITED | Private company limited by shares | Live |