| COGNIMEM LIMITED | Private company limited by shares | Dissolved |
| COGNINSIGHT LIMITED | | Live |
| Cognis Limited | Private company limited by shares | Live |
| COGNISANT LIMITED | Private company limited by shares | Live |
| Cogniscent (Pacific) Limited | Private company limited by shares | Live Commenced dormancy on 28-Feb-2014 |
| Cogniser Enterprise Limited | Private company limited by shares | Live |
| TERRA COGNITA WINES LIMITED | Private company limited by shares | Live |
| Cognitact Limited | Private company limited by shares | Live |
| COGNITEC SYSTEMS LIMITED | Private company limited by shares | Live |
| COGNITELL PRIVATE LIMITED | Private company limited by shares | Live |
| COGNITIME LIMITED | Private company limited by shares | Live |
| Cognitio Consulting Limited | Private company limited by shares | Live |
| Dawn Cognition Holding Limited | | Live |
| CENTURY GREAT DAO COGNITION COMMUNICATIONS, LIMITED | Private company limited by shares | Live |
| Hong Kong Cognition Limited | Private company limited by shares | Dissolved |
| Cognition International Limited | Private company limited by shares | Live |
| Cognitive Limited | Private company limited by shares | Live |
| EDVARD INTERNATIONAL INSTITUTE OF THE BRAIN AND COGNITIVE SCIENCES LIMITED | Private company limited by shares | Live |
| CHINESE ASSOCIATION OF COGNITIVE BEHAVIOUR THERAPY (HK) LIMITED | Company limited by guarantee | Live |
| Cognitive Enterprises Limited | Private company limited by shares | Live Commenced dormancy on 15-Oct-2018 |
| COGNITO LIMITED | Private company limited by shares | Dissolved |
| Cognito Hub Limited | Private company limited by shares | Live |
| COGNIVAL LIMITED | Private company limited by shares | Live |
| COGNIX LIMITED | Private company limited by shares | Live |
| Cognix Technology Limited | | Live |
| COGNIXON DATA SCIENCE & TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Cognizantec (Hong Kong) Limited | Private company limited by shares | Dissolved |
| Cognizeme Limited | Private company limited by shares | Live |
| Cognizyr Limited | Private company limited by shares | Live |
| Cognoa HK Limited | Private company limited by shares | Live |
| COGNOS HONG KONG LIMITED | Private company limited by shares | Dissolved |
| COGNOSC GROUP CO., LIMITED | Private company limited by shares | Live |
| Cognoscenti Limited | Private company limited by shares | Live |
| COGNOSOL LIMITED | Private company limited by shares | Live |
| COGNYS LIMITED | Private company limited by shares | Live |
| COGO FREIGHT LIMITED | Private company limited by shares | Dissolved |
| COGO TOYS LIMITED | Private company limited by shares | Live |
| CoGoBloom Limited | | Live |
| COGOBUY LIMITED | Private company limited by shares | Live |
| CoGoLinks Global Limited | | Live |
| CoGoLinks Hong Kong Limited | | Live |
| Cogoport Hong Kong Limited | | Live |
| Cogotec Limited | | Live |
| CO-GRAND LIMITED | Private company limited by shares | Dissolved |
| HK CO-GROW ELECTRONICS LIMITED | Private company limited by shares | Live |
| CO-GROWING TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| CO-GROWING FITNESS LIMITED | Private company limited by shares | Dissolved |
| Cogry Heritage Developments Limited | Private company limited by shares | Live |
| Cogs Agency (Hong Kong) Limited | Private company limited by shares | Live |
| Cogsgo Limited | Private company limited by shares | Live |
| CogSmart Asia Limited | Private company limited by shares | Live |
| Cogtu HONGKONG Limited | Private company limited by shares | Live |
| COGWHEEL LIMITED | Private company limited by shares | Live |
| CoGyn Bio-Pharmaceutical Holding Group Limited | Private company limited by shares | Dissolved |