| CO-EARN INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| Co-Earn Investment Limited | Private company limited by shares | Live |
| CO-EASE LIMITED | Private company limited by shares | Dissolved |
| COEASURE LIMITED | Private company limited by shares | Live |
| COMMON WEALTH EDUCATION CONSULTANCY (COEC) LIMITED | Private company limited by shares | Live |
| CO-ECHO COMPANY LIMITED | Private company limited by shares | Live |
| COED LIMITED | | Live |
| Coed Cadec Limited | Private company limited by shares | Dissolved |
| CoEditora Limited | Private company limited by shares | Live |
| TKO Co-Education Limited | Private company limited by shares | Live |
| CO-EDUCATIONAL COLLEGES COMPANY, LIMITED | Private company limited by shares | Dissolved |
| HONGKONG INTERNATIONAL COEFFICIENT ECO-INDUSTRIAL INVESTMENT CO., LIMITED | Private company limited by shares | Live |
| Coefficient Investment Co., Limited | Private company limited by shares | Live |
| CO-EFFICIENT FUTURETECH LIMITED | Private company limited by shares | Live |
| Coefficient HK Group Holding Limited | Private company limited by shares | Live |
| COEFFORT LIMITED | Private company limited by shares | Live |
| COEFFORT HOME PRODUCT CO., LIMITED | Private company limited by shares | Live |
| Coeffort Electronic Technology Co., Limited | Private company limited by shares | Live |
| Coei O Limited | Private company limited by shares | Live |
| COEI O STUDIO LIMITED | | Live |
| COEIA LIMITED | | Live |
| Coek Dak Technological Limited | Private company limited by shares | Live |
| COELACANTH LIMITED | Private company limited by shares | Dissolved |
| Coelacanth Limited | | Live |
| Coelacanths Limited | Private company limited by shares | Live |
| CO-ELECTRONIC COMPANY LIMITED | Private company limited by shares | Live |
| CO-ELEGANT LIMITED | Private company limited by shares | Dissolved |
| COELIPA LIMITED | Private company limited by shares | Live |
| Coelitus Education and Technology Company Limited | Private company limited by shares | Live |
| Coelom Company Limited | Private company limited by shares | Live |
| CO-EMPIRE LIMITED | Private company limited by shares | Live |
| Coenda Energy Company Limited | Private company limited by shares | Live |
| CO-ENERGY LIMITED | Private company limited by shares | Dissolved |
| WAA COENG LIMITED | Private company limited by shares | Live |
| KEI COENG LIMITED | | Live |
| Coeng Tec Co., Limited | | Live |
| GAM SING COENG (HONGKONG) INTERNATIONAL TRADING CO., LIMITED | Private company limited by shares | Live |
| Juk Coeng Holding Company Limited | Private company limited by shares | Live |
| TIN LUNG COENG COMPANY LIMITED | Private company limited by shares | Live |
| MING COENG TRADING COMPANY LIMITED | Private company limited by shares | Live |
| COENGIN EXPERTISE LIMITED | Private company limited by shares | Live |
| Coengine Limited | | Live |
| Win Coengl Sun Industrial Development Co., Limited | Private company limited by shares | Dissolved |
| Coenmn Company Limited | Private company limited by shares | Live |
| 168 CO-ENTERTAINMENT LIMITED | Company limited by guarantee | Dissolved |
| Coenwin Investment Co., Limited | Private company limited by shares | Live |
| Coeos Capital Limited | Private company limited by shares | Live |
| COEP HONG KONG CO., LIMITED | Private company limited by shares | Live |
| COEPTO (HongKong) Co., LIMITED | Private company limited by shares | Live |
| NOVI COEPTUS CONSULTANCY PTE LIMITED | Private company limited by shares | Live |
| Coesius Network Hong Kong Co., Limited | Private company limited by shares | Live |
| COESIUS Y NZBZ CO., LIMITED | Private company limited by shares | Live |
| Co-Esy Company Limited | Private company limited by shares | Live |
| Co-Etech Limited | Private company limited by shares | Live |
| COETERNAL INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| COETZE CONSULTANT LIMITED | | Live |
| CO-EURO LIMITED | Private company limited by shares | Dissolved |
| COEURS Limited | | Live |
| LES COEURS TRADING LIMITED | Private company limited by shares | Live |
| COEUS Limited | Private company limited by shares | Live |
| HONGKONG CO-EVER INVESTMENT GROUP LIMITED | Private company limited by shares | Dissolved |
| COEVER TECHNOLOGY (HONGKONG) CO., LIMITED | Private company limited by shares | Live |
| CO-EVER INTERNATIONAL CO., LIMITED | Private company limited by shares | Dissolved |
| COEVER INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| COEVERING LIMITED | Private company limited by shares | Live |
| COEX TECHNOLOGY LIMITED | Private company limited by shares | Live |
| COEXAF LIMITED | Private company limited by shares | Live |
| CO-EXCEL LIMITED | Private company limited by shares | Dissolved |
| Coexia Limited | Private company limited by shares | Live |
| SUN COEXIST INTERNATIONAL CO., LIMITED | Private company limited by shares | Dissolved |
| CO-EXIST Design Media and Exhibition Limited | Private company limited by shares | Live |
| Man Mo Coexist.edu Limited | Private company limited by shares | Live |
| Relax Free Coexistence Limited | | Live |
| CO-EXPRESS LIMITED | Private company limited by shares | Dissolved |
| CO-EXPRESS ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| Coey Holding Company Limited | Private company limited by shares | Live |