| Cathay Consolidated Limited | Private company limited by shares | Live |
| CATHAY CONSTRUCTION COMPANY LIMITED | Private company limited by shares | Live |
| CATHAY CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| Cathay HungKai (China) Engineering Consultants Limited | Private company limited by shares | Live |
| CATHAY INSURANCE CONSULTANTS LIMITED | Private company limited by shares | Live |
| CATHAY CONSULTING LIMITED | Private company limited by shares | Dissolved |
| CATHAY CONSULTING LIMITED | Private company limited by shares | Dissolved |
| Cathay Capital Investment Consulting Co., Limited | Private company limited by shares | Live |
| FORTUNE CATHAY CONSULTING LIMITED | Private company limited by shares | Live |
| CATHAY CONSULTING GROUP LIMITED | Private company limited by shares | Live Commenced dormancy on 23-Jun-2016 |
| Cathay Enterprise Management Consulting Limited | Private company limited by shares | Live |
| CATHAY PERFORMA CONSULTING LIMITED | Private company limited by shares | Dissolved |
| Cathay Continental Biotech Limited | Private company limited by shares | Live |
| Cathay Continental Holdings Limited | Private company limited by shares | Live |
| CATHAY TEA CORPORATION, LIMITED -THE- | Private company limited by shares | Dissolved |
| CATHAY GEM CORPORATION LIMITED | Private company limited by shares | Live |
| Cathay Sunrise Corporation Limited | Private company limited by shares | Live |
| CATHAY COTTON LIMITED | Private company limited by shares | Dissolved |
| CATHAY CRAFTS LIMITED | Private company limited by shares | Dissolved |
| Cathay Credit & Finance (Hong Kong) Limited | Private company limited by shares | Live |
| CATHAY CULTURAL PUBLICATION LIMITED | Private company limited by shares | Dissolved |
| CATHAY DECORATION LIMITED | Private company limited by shares | Live |
| CATHAY WAY DEVELOPMENT LIMITED | Private company limited by shares | Live |
| CATHAY DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| CATHAY DEVELOPMENT COMPANY LIMITED | Private company limited by shares | Live |
| CATHAY SUB DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| Cathay IC Development Limited | Private company limited by shares | Live |
| CATHAY PACIFIC AIRPORT DEVELOPMENT AND SERVICES LIMITED | Private company limited by shares | Dissolved |
| CENTRAL CATHAY DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| CONGHUA CATHAY DEVELOPMENT LIMITED | Private company limited by shares | Live |
| Cathay Energy Development Limited | Private company limited by shares | Live |
| CATHAY DESIGN ENGINEERING & DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| PACIFIC CATHAY INVESTMENT & DEVELOPMENT GROUP LIMITED | Private company limited by shares | Dissolved |
| CATHAY PROPERTY DEVELOPMENT LIMITED | Private company limited by shares | Live |
| STAR CATHAY DEVELOPMENT LIMITED | Private company limited by shares | Live |
| CATHAY DEVELOPMENT AND TRADING COMPANY LIMITED -THE- | Private company limited by shares | Dissolved |
| CATHAY TRADING AND DEVELOPMENT CORPORATION LIMITED | Private company limited by shares | Dissolved |
| CATHAY DIAMOND LIMITED | Private company limited by shares | Dissolved |
| Cathay Digital Company Limited | Private company limited by shares | Live |
| CATHAY DRAGON LIMITED | Private company limited by shares | Dissolved |
| CATHAY DRAGON LIMITED | Private company limited by shares | Live |
| CATHAY DRUGSTORE LIMITED | Private company limited by shares | Dissolved |
| CATHAY DUPONT LIMITED | Private company limited by shares | Live |
| CATHAY ELECTRONICS LIMITED | Private company limited by shares | Dissolved |
| CATHAY ELECTRONICS COMPANY LIMITED | Private company limited by shares | Dissolved |
| CATHAY ELECTRONICS LIMITED | Private company limited by shares | Live |
| CATHAY ELECTRONICS (CHINA) COMPANY LIMITED | Private company limited by shares | Live |
| CATHAY CHINA ELECTRONICS AND COMPUTER SYSTEMS LIMITED | Private company limited by shares | Live |
| Cathay Elite Investment Limited | Private company limited by shares | Live |
| Cathay New Energy Investment Limited | Private company limited by shares | Dissolved |
| CATHAY ENERGY & MINING LIMITED | Private company limited by shares | Live |
| CATHAY ENGINE AND ELECTRONICS LIMITED | | Live |
| CATHAY ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| MAK'S (CATHAY) ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| CATHAY & H ENTERPRISE COMPANY LIMITED | Private company limited by shares | Dissolved |
| CATHAY ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| CATHAY ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| CATHAY ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| CATHAY ENTERTAINMENT, LIMITED | Private company limited by shares | Dissolved |
| Cathay Entrepreneurs Limited | Private company limited by shares | Live |
| Cathay Environmental Capital Limited | Private company limited by shares | Live |
| CATHAY EQUIPMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| CATHAY MACHINERY & EQUIPMENT LIMITED | Private company limited by shares | Live |
| CATHAY EQUITY LIMITED | Private company limited by shares | Dissolved |
| CATHAY ESTATES LIMITED | Private company limited by shares | Dissolved |
| ETERNA (CATHAY) LIMITED | Private company limited by shares | Dissolved |
| CATHAY ETERNITY INTERNATIONAL TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| ETHER CATHAY COMPANY LIMITED | Private company limited by shares | Dissolved |
| Cathay Experience Limited | Private company limited by shares | Dissolved |
| CATHAY ASSOCIATED EXPORTERS LIMITED | Private company limited by shares | Dissolved |
| UNITED CATHAY EXPORTERS LIMITED | Private company limited by shares | Dissolved |
| CATHAY EXPORTS COMPANY LIMITED | Private company limited by shares | Live |
| CATHAY EXPRESS LIMITED | Private company limited by shares | Dissolved |
| CATHAY EMBROIDERY FACTORY LIMITED | Private company limited by shares | Dissolved |
| CATHAY ENAMEL FACTORY LIMITED | Private company limited by shares | Dissolved |
| CATHAY PLASTIC FACTORY LIMITED | Private company limited by shares | Dissolved |
| CATHAY PLASTIC FACTORY LIMITED | Private company limited by shares | Live |
| CATHAY FALCONS GROUP LIMITED | Private company limited by shares | Dissolved |
| CATHAY PLASTIC (FAR EAST) FACTORY LIMITED | Private company limited by shares | Dissolved |
| Cathay Farm Stock Company Limited | Private company limited by shares | Live |
| Cathay Farm Stock Company Limited | Private company limited by shares | Live |
| CATHAY FIBREGLASS COMPANY LIMITED | Private company limited by shares | Dissolved |
| CATHAY FILM COMPANY LIMITED | Private company limited by shares | Dissolved |
| CATHAY FILMS (ASIA) LIMITED | Private company limited by shares | Dissolved |
| CATHAY FILMS DISTRIBUTION COMPANY LIMITED | Private company limited by shares | Dissolved |
| Cathay Finance Limited | Private company limited by shares | Live |
| CATHAY FINANCE AND INVESTMENT COMPANY LIMITED | Company limited by guarantee | Dissolved |
| CATHAY PACIFIC FINANCE LIMITED | Private company limited by shares | Live |
| Cathay Pacific Finance II Limited | Private company limited by shares | Live |
| Cathay Yantra Financing Service Limited | Private company limited by shares | Live |
| CATHAY FIRSTRADE LIMITED | Private company limited by shares | Live |
| CATHAY FOOD COMPANY LIMITED | Private company limited by shares | Live |
| CATHAY FOODS LIMITED | Private company limited by shares | Dissolved |
| Cathay Pet Foods Limited | Private company limited by shares | Live |
| Cathay Euro Force Limited | Private company limited by shares | Live |
| Cathay Forever Limited | Private company limited by shares | Live |
| FORTUNE CATHAY LIMITED | Private company limited by shares | Dissolved |
| FORTUNE CATHAY LIMITED | | Live |
| CATHAY FORTUNE CAPITAL HOLDING LIMITED | Private company limited by shares | Live |
| CATHAY FORTUNE INVESTMENT LIMITED | Private company limited by shares | Live |