| ASTRO WIRELESS LIMITED | Private company limited by shares | Live |
| ASTRO DIGITAL WIRELESS LIMITED | Private company limited by shares | Live |
| Astro World Limited | Private company limited by shares | Live |
| ASTRO WORLDWIDE COMMUNICATIONS LIMITED | Private company limited by shares | Live Commenced dormancy on 23-Jul-1998 |
| Astroamber Limited | Private company limited by shares | Dissolved |
| AstroAsia Limited | Private company limited by shares | Live |
| ASTROB RESEARCH COMPANY LIMITED | Private company limited by shares | Dissolved |
| AstroBlue Limited | | Live |
| AstroClipper Limited | Private company limited by shares | Live |
| ASTROCOMP LIMITED | Private company limited by shares | Dissolved |
| ASTROCORD LIMITED | Private company limited by shares | Dissolved |
| ASTRODIVINA COMPANY LIMITED | Private company limited by shares | Live |
| ASTRODOLLAR INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| ASTROFLEX LIMITED | Private company limited by shares | Dissolved |
| Astro-Fly LED Limited | Private company limited by shares | Live |
| Astrofortune Jinzhenmen (Hongkong) Co., Limited | Private company limited by shares | Live |
| ASTROFORUM LIMITED | Private company limited by shares | Live |
| ASTROGEAR LIMITED | Private company limited by shares | Dissolved |
| Astrogeodetic Engineering & Surveys Company Limited | Private company limited by shares | Live |
| ASTROGON COMPANY LIMITED | Private company limited by shares | Dissolved |
| ASTROGROUP HK LIMITED | Private company limited by shares | Dissolved |
| Astrohealer Technology Co., Limited | Private company limited by shares | Live |
| ASTRO-HOLDINGS LIMITED | Private company limited by shares | Live |
| ASTROID LIMITED | Private company limited by shares | Live |
| ASTROID TECHNOLOGY (HONGKONG) LIMITED | Private company limited by shares | Live |
| ASTROIDS INTERNATIONAL LIMITED | Private company limited by shares | Live |
| ASTROL TRADE LIMITED | Private company limited by shares | Dissolved |
| ASTROLABIO LIMITED | Private company limited by shares | Live |
| ASTROLINK LIMITED | Private company limited by shares | Dissolved |
| AstroLink Company Limited | Private company limited by shares | Live |
| ASTROLITE LIMITED | Private company limited by shares | Dissolved |
| ASTROLITE TECHNOLOGY (H.K.) LIMITED | Private company limited by shares | Dissolved |
| ASTROLITE INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| Astroll Management Limited | | Live |
| ASTROLUCK LIMITED | Private company limited by shares | Dissolved |
| ASTROMAX LIMITED | Private company limited by shares | Live |
| ASTROMEGA MEDICAL LIMITED | Private company limited by shares | Live |
| AstroMotion Limited | Private company limited by shares | Live |
| ASTRON LIMITED | Private company limited by shares | Dissolved |
| ASTRON LIMITED | Private company limited by shares | Live |
| Astronaut Limited | Private company limited by shares | Live |
| Astronaut Motor Limited | Private company limited by shares | Live |
| ASTRONAUTICS OF ASIA COMPANY LIMITED | Private company limited by shares | Dissolved |
| CHINA ASTRONAUTICS SCIENCE & TECHNOLOGY (H.K.) COMPANY LIMITED | Private company limited by shares | Dissolved |
| 88 Astronauts Limited | Private company limited by shares | Live |
| Astrong Capital Limited | Private company limited by shares | Live |
| ASTRONG PROPERTIES (CHINA) LIMITED | Private company limited by shares | Live |
| ASTRONG GROUP LIMITED | Private company limited by shares | Live |
| ASTRONG MICROELECTRONICS LIMITED | Private company limited by shares | Dissolved |
| AstrongTechnology Limited | Private company limited by shares | Live |
| ASTRONIC LIMITED | Private company limited by shares | Live |
| Astronique Limited | Private company limited by shares | Live |
| AstronLab Limited | Private company limited by shares | Live |
| ASTRONOM INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| Mindset Astronomer Limited | Private company limited by shares | Live |
| Astronomical industry co., Limited | Private company limited by shares | Live |
| ASTRONORTH LIMITED | Private company limited by shares | Dissolved |
| AstroNova Limited | Private company limited by shares | Live |
| Astropapa Company Limited | Private company limited by shares | Live |
| ASTROPARK LIMITED | Private company limited by shares | Live |
| ASTROPHYSICS INTERNATIONAL LIMITED | Private company limited by shares | Live |
| ASTROS (BOOK STORE) COMPANY LIMITED | Private company limited by shares | Dissolved |
| ASTROS PRINTING LIMITED | Private company limited by shares | Dissolved |
| Global Astroservice Limited | Private company limited by shares | Live |
| ASTRO-STAR TECHNOLOGY HONGKONG CO., LIMITED | Private company limited by shares | Dissolved |
| Astrostar Trading Limited | Private company limited by shares | Live |
| ASTROTEC COMPANY LIMITED | Private company limited by shares | Live |
| ASTROTECH LIMITED | Private company limited by shares | Dissolved |
| ASTRO-TEL TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| Ace Astrou Limited | Private company limited by shares | Live |
| HK ASTRO-UP INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| ASTROWAY LIMITED | Private company limited by shares | Live |
| AstroWing Information Technology Limited | | Live |
| ASTROY TIRE CO., LIMITED | Private company limited by shares | Live |