| M Concept Education Limited | Private company limited by shares | Live |
| EDUCATION CONCEPT LIMITED | Private company limited by shares | Live |
| CONCEPT EDUCATION SERVICE LIMITED | Private company limited by shares | Dissolved |
| STEAM Concept Education Limited | Private company limited by shares | Live |
| Edvantic Concept Limited | Private company limited by shares | Live |
| E-ING Concept Limited | | Live |
| NEW CONCEPT ELECTRIC COMPANY LIMITED | Private company limited by shares | Live |
| SMART CONCEPT ELECTRONIC LIMITED | Private company limited by shares | Dissolved |
| ALLIED CONCEPT ELECTRONICS TECHNOLOGY LIMITED | Private company limited by shares | Live |
| GLOBAL CONCEPT ELECTRONICS LIMITED | Private company limited by shares | Live |
| ELEMENT CONCEPT LIMITED | Private company limited by shares | Dissolved |
| Elish Concept Limited | Private company limited by shares | Live |
| CONCEPT ELITE LIMITED | Private company limited by shares | Live |
| ELITE CONCEPT COMPANY LIMITED | Private company limited by shares | Live |
| ELITE CONCEPT INC LIMITED | Private company limited by shares | Live |
| ELITE CONCEPT HK LIMITED | Private company limited by shares | Live |
| ELITE CONCEPT ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| ELITE CONCEPT INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| ELIXIR CONCEPT LIMITED | Private company limited by shares | Dissolved |
| ELLEN'S CONCEPT MANUFACTURING COMPANY LIMITED | Private company limited by shares | Dissolved |
| E-MAN CONCEPT LIMITED | Private company limited by shares | Live |
| Endymion Concept Limited | Private company limited by shares | Live |
| ALLIED CONCEPT ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| ALLIED CONCEPT ENGINEERING LIMITED | Private company limited by shares | Live |
| CREATION CONCEPT ENGINEERING LIMITED | Private company limited by shares | Live |
| GOOD CONCEPT ENGINEERING LIMITED | Private company limited by shares | Live |
| MODERN CONCEPT ENGINEERING LIMITED | Private company limited by shares | Live |
| RIGHT CONCEPT ENGINEERING LIMITED | Private company limited by shares | Live |
| UNITED CONCEPT ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| ENLIGHTENMENT CONCEPT GROUP LIMITED | Private company limited by shares | Live |
| ENSON CONCEPT LIMITED | Private company limited by shares | Live |
| ENTER CONCEPT LIMITED | Private company limited by shares | Live |
| ART CONCEPT ENTERPRISE LIMITED | Private company limited by shares | Live |
| WIN CONCEPT ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| SKY CONCEPT ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| NEW CONCEPT ENTERPRISE LIMITED | Private company limited by shares | Live |
| ERA CONCEPT ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| SUN CONCEPT ENTERPRISE LIMITED | Private company limited by shares | Live |
| MKH Concept Enterprise Limited | Private company limited by shares | Live |
| Concept Enterprise Limited | | Live |
| CREATIVE CONCEPT ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| DRAGON CONCEPT ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| FIRST CONCEPT ENTERPRISE LIMITED | Private company limited by shares | Live |
| TRADE CONCEPT ENTERPRISE LIMITED | Private company limited by shares | Live |
| ENTERPRISER CONCEPT LIMITED | Private company limited by shares | Dissolved |
| NEW CONCEPT ENTERPRISES COMPANY LIMITED | Private company limited by shares | Live |
| CONCEPT ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SKY CONCEPT ENTERPRISES LIMITED | Private company limited by shares | Live |
| TOP CONCEPT ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| X CONCEPT ENTERPRISES COMPANY LIMITED | Private company limited by shares | Live |
| IN CONCEPT ENTERPRISES LIMITED | Private company limited by shares | Live |
| MAX CONCEPT ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| WIN CONCEPT ENTERPRISES LIMITED | Private company limited by shares | Live |
| GO CONCEPT ENTERPRISES LIMITED | Private company limited by shares | Live |
| MAX CONCEPT ENTERPRISES LIMITED | Private company limited by shares | Live |
| TOP CONCEPT ENTERPRISES LIMITED | Private company limited by shares | Live |
| WIN CONCEPT ENTERPRISES LIMITED | Private company limited by shares | Live |
| E'S CONCEPT ENTERTAINMENT LIMITED | Private company limited by shares | Live |
| NIU CONCEPT HK ENTERTAINMENT LIMITED | Private company limited by shares | Live |
| ENVISION CONCEPT COMPANY LIMITED | Private company limited by shares | Dissolved |
| L' EQUINOXE CONCEPT LIMITED | Private company limited by shares | Live |
| EQUITY CONCEPT LIMITED | Private company limited by shares | Live |
| E-SMART CONCEPT LIMITED | Private company limited by shares | Dissolved |
| ESPRESSO CONCEPT LIMITED | Private company limited by shares | Live |
| Essenso Concept Limited | Private company limited by shares | Dissolved |
| ETERNAL CONCEPT LIMITED | Private company limited by shares | Dissolved |
| ETERNAL CONCEPT LIMITED | Private company limited by shares | Live |
| ETERNAL CONCEPT ENTERPRISE LIMITED | Private company limited by shares | Live |
| ETERNAL CONCEPT INVESTMENT LIMITED | Private company limited by shares | Live |
| Eunoia Concept Limited | | Live |
| EURASIA Global Concept Limited | Private company limited by shares | Live |
| EURO CONCEPT LIMITED | Private company limited by shares | Dissolved |
| EURO CONCEPT LIMITED | Private company limited by shares | Live |
| EVER CONCEPT LIMITED | Private company limited by shares | Dissolved |
| EVER CONCEPT LIMITED | Private company limited by shares | Dissolved |
| EVER CONCEPT LIMITED | Private company limited by shares | Dissolved |
| EVER CONCEPT LIMITED | Private company limited by shares | Live |
| EVER CONCEPT (ASIA) LIMITED | Private company limited by shares | Dissolved |
| EVER CONCEPT ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| EVER CONCEPT INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| EVER CONCEPT INVESTMENTS LIMITED | Private company limited by shares | Live |
| EVER CONCEPT JEWELRY LIMITED | Private company limited by shares | Dissolved |
| EVER CONCEPT ASIA PACIFIC LIMITED | Private company limited by shares | Live |
| EVERTEK CONCEPT LIMITED | Private company limited by shares | Dissolved |
| EVERVEST CONCEPT LIMITED | Private company limited by shares | Dissolved |
| EXCEL CONCEPT LIMITED | Private company limited by shares | Dissolved |
| EXCEL CONCEPT LIMITED | Private company limited by shares | Dissolved |
| EXCEL CONCEPT LIMITED | Private company limited by shares | Live |
| EXCEL CONCEPT (ASIA) LIMITED | Private company limited by shares | Dissolved |
| EXCEL CONCEPT AUDIO LIMITED | Private company limited by shares | Live |
| EXCEL CONCEPT ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| EXCEL CONCEPT ENTERPRISES LIMITED | Private company limited by shares | Live |
| EXCEL CONCEPT INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| EXCEL CONCEPT INVESTMENT LIMITED | Private company limited by shares | Live |
| EXCELLENCE CONCEPT LIMITED | Private company limited by shares | Live |
| EXCELLENT CONCEPT LIMITED | Private company limited by shares | Dissolved |
| EXCELLENT CONCEPT LIMITED | Private company limited by shares | Live |
| A CONCEPT EXHIBITION LIMITED | Private company limited by shares | Dissolved |
| EXPERT CONCEPT LIMITED | Private company limited by shares | Live |
| EXPO CONCEPT COMPANY LIMITED | Private company limited by shares | Dissolved |