| Catalyn (Hongkong) Medical Technology Co., Limited | Private company limited by shares | Live |
| Catalyscity Design Limited | Private company limited by shares | Live |
| CATALYSIS LIMITED | Private company limited by shares | Dissolved |
| CATALYSIS AUTONOMOUS SYSTEMS LIMITED | Private company limited by shares | Live |
| Catalysm Limited | | Live |
| CATALYST COMPANY LIMITED | Private company limited by shares | Dissolved |
| CATALYST LIMITED -THE- | Private company limited by shares | Live |
| NEW CATALYST LIMITED | Private company limited by shares | Live |
| CCB Catalyst Limited | Private company limited by shares | Live |
| CATALYST I LIMITED | Private company limited by shares | Live |
| AB Catalyst Limited | Private company limited by shares | Live |
| HK CATALYST LIMITED | | Live |
| CATALYST ADVERTISING LIMITED | Private company limited by shares | Dissolved |
| CATALYST ASIA HOLDING LIMITED | | Live |
| BEAUTY CATALYST CO LIMITED | Private company limited by shares | Live |
| CATALYST CAPITAL LIMITED | Private company limited by shares | Live |
| Catalyst Concepts Limited | Private company limited by shares | Dissolved |
| CATALYST ENTERPRISES LIMITED | Private company limited by shares | Live |
| Catalyst Innovations Limited | | Live |
| Catalyst Investment Company Limited | | Live |
| Market Catalyst Limited | | Live |
| Nobel Catalyst 68 Limited | Private company limited by shares | Live |
| CATALYST PACIFIC LIMITED | Private company limited by shares | Dissolved |
| CATALYST RESOURCES LIMITED | Private company limited by shares | Dissolved |
| CATALYST SOLUTIONS LIMITED | Private company limited by shares | Live |
| VENTURE CATALYST LIMITED | | Live |
| CATALYSTA LIMITED | Private company limited by shares | Live |
| POLESTAR CATALYSTS LIMITED | Private company limited by shares | Live |
| Catalysts Solutions Limited | Private company limited by shares | Live |
| CATALYSTX LIMITED | | Live |
| Catalytic & Co. Limited | Private company limited by shares | Live |
| CATALYTIC DIGITAL LIMITED | Private company limited by shares | Dissolved |
| CATALYXT Limited | | Live |
| Catalyze Limited | | Live |
| CATALYZER LIMITED | Private company limited by shares | Dissolved |