| Aico Alpha Limited | | Live |
| ALPHA HOUSE AIR-CONDITION MANAGEMENT CO., LIMITED | Private company limited by shares | Dissolved |
| ALPHA AIRLINE LIMITED | Private company limited by shares | Live |
| Alpha Aletheia Limited | Private company limited by shares | Live |
| ALPHA ALLIANCE LIMITED | Private company limited by shares | Dissolved |
| ALPHA ALLIANCE LIMITED | | Live |
| ALPHA ALLIANCE CAPITAL LIMITED | Private company limited by shares | Live |
| ALPHA ALLIANCE FINANCE LIMITED | Private company limited by shares | Dissolved |
| Alpha Alliance Trading Limited | | Live |
| ALPHA ALLIANCE INTERNATIONAL TRADING LIMITED | Private company limited by shares | Live |
| ALLIED ALPHA LIMITED | Private company limited by shares | Dissolved |
| ALPHA ALLIED LIMITED | Private company limited by shares | Dissolved |
| ALLIED ALPHA LIMITED | | Live |
| ALPHA ALLIED INVESTMENTS LIMITED | Private company limited by shares | Live |
| ASIA ALPHA ALTERNATIVES LIMITED | Private company limited by shares | Live |
| ANALOGUE ALPHA ASIA LIMITED | Private company limited by shares | Live |
| ALPHA PACIFIC APPARELS (HK) LIMITED | Private company limited by shares | Dissolved |
| ALPHA APPLIANCES LIMITED | Private company limited by shares | Live |
| ALPHA AQUA LIMITED | Private company limited by shares | Live |
| Alpha Aquila Limited | Private company limited by shares | Live |
| Alpha Arrow Limited | | Live |
| ALPHA WEALTH ARTHUR LAU TEAM LIMITED | Private company limited by shares | Live |
| ALPHA ARTIS LIMITED | Private company limited by shares | Live |
| ALPHA ARTS LIMITED | Private company limited by shares | Live |
| Alpha and Omega Arts Management Limited | Private company limited by shares | Live |
| Alpha Ashfield Resources Company Limited | Private company limited by shares | Live |
| ALPHA (ASIA) LIMITED | Private company limited by shares | Live |
| ALPHA 3 ASIA LIMITED | Private company limited by shares | Live |
| ALPHA WIN ASIA LIMITED | Private company limited by shares | Live |
| Alpha Lab Asia Limited | Private company limited by shares | Live |
| ALPHA BEST (ASIA) LIMITED | Private company limited by shares | Dissolved |
| ALPHA CAPITAL ASIA LIMITED | Private company limited by shares | Live |
| ALPHA CAPITAL ASIA LIMITED | Private company limited by shares | Live |
| ALPHA CREDIT (ASIA) LIMITED | Private company limited by shares | Live |
| ALPHA EQUIPMENT (ASIA) LIMITED | Private company limited by shares | Dissolved |
| Alpha Asia Invest Limited | Private company limited by shares | Live |
| Alpha Logica (Asia) Limited | Private company limited by shares | Dissolved |
| ALPHA MEDIA (ASIA) LIMITED | Private company limited by shares | Live |
| ALPHA MEGA INTERNATIONAL (ASIA) LIMITED | Private company limited by shares | Dissolved |
| ALPHA RESOURCES (ASIA) LIMITED | Private company limited by shares | Dissolved |
| ALPHA TRADE ASIA LIMITED | Private company limited by shares | Dissolved |
| ASIAN ALPHA LIMITED | Private company limited by shares | Live Commenced dormancy on 29-Jan-2013 |
| ALPHA ASSEMBLY LIMITED | Company limited by guarantee | Live |
| Alpha Asset Holding Limited | Private company limited by shares | Live |
| Assetclass Alpha Limited | | Live |
| ALPHA & LEADER RISKS AND ASSETS MANAGEMENT COMPANY LIMITED | Private company limited by shares | Live |
| Alpha & Associates Limited | Private company limited by shares | Live |
| 6 Alpha Associates Limited | Private company limited by shares | Live |
| ALPHA & LEADER ASSOCIATES LIMITED | Private company limited by shares | Live |
| ALPHA SPORTS ASSOCIATION LIMITED | Company limited by guarantee | Live |
| Astrend IV (Hong Kong) Alpha Limited | Private company limited by shares | Live |
| Astrend V (Hong Kong) Alpha Limited | Private company limited by shares | Live |
| Astrend Opportunity IV (Hong Kong) Alpha Limited | Private company limited by shares | Live |
| Aurora Alpha Limited | Private company limited by shares | Live |
| ALPHA AUTOMATION LIMITED | | Live |
| Alpha One Aviation Limited | Private company limited by shares | Live |
| Alpha Ballet Limited | Private company limited by shares | Live |
| Alpha Balloon Limited | Private company limited by shares | Live |
| ALPHA BASE LIMITED | Private company limited by shares | Dissolved |
| Alpha Base Limited | Private company limited by shares | Live |
| ALPHA BASE LIMITED | Private company limited by shares | Live |
| Alpha Base Trading Limited | | Live |
| Alpha Bees Biotechnology Limited | Private company limited by shares | Live |
| Alpha Bellz Limited | Private company limited by shares | Live |
| ALPHA BENEFIT LIMITED | Private company limited by shares | Live |
| ALPHA BENSON LIMITED | Private company limited by shares | Dissolved |
| Alpha & Berkley Limited | Private company limited by shares | Live |
| ALPHA BEST LIMITED | Private company limited by shares | Dissolved |
| ALPHA BEST LIMITED | Private company limited by shares | Dissolved |
| BEST ALPHA LIMITED | Private company limited by shares | Live |
| ALPHA BEST LIMITED | | Live |
| ALPHA BEST CREATIVE LIMITED | Private company limited by shares | Live |
| ALPHA BEST ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| ALPHA BEST ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| ALPHA BEST INTERNATIONAL LIMITED | Private company limited by shares | Live |
| BESTLUCK ALPHA ENTERPRISE LIMITED | Private company limited by shares | Live |
| ALPHA BETA LIMITED | Private company limited by shares | Live |
| ALPHA & BETA LIMITED | Private company limited by shares | Live |
| ALPHA BETA CAPITAL LIMITED | Private company limited by shares | Live |
| Alpha and Beta Computers Limited | Private company limited by shares | Live |
| ALPHA BETA CORPORATION LIMITED | Private company limited by shares | Dissolved |
| Alpha Beta Corporation Limited | Private company limited by shares | Live |
| ALPHA & BETA ENTERPRISE LIMITED | Private company limited by shares | Live |
| ALPHA & BETA GROUP LIMITED | Private company limited by shares | Live |
| ALPHA BETA WAVE (HOLDING) LIMITED | Private company limited by shares | Dissolved |
| Alpha Beta Hong Kong Limited | Private company limited by shares | Live |
| ALPHA & BETA INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| ALPHA BETA INTERNATIONAL (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| ALPHA BETA OFFICE FURNITURE LIMITED | Private company limited by shares | Dissolved |
| ALPHA BETA TRADING LIMITED | Private company limited by shares | Live |
| ALPHA BIOGREEN LIMITED | Private company limited by shares | Live |
| Alpha Biomeals HK Limited | Private company limited by shares | Live |
| Alpha Biomed Limited | Private company limited by shares | Live |
| ALPHA BIOMEDICAL CENTRE LIMITED | Private company limited by shares | Live |
| ALPHA BIO-NANO COMPANY LIMITED | Private company limited by shares | Live |
| ALPHA BIOTECH LIMITED | Private company limited by shares | Dissolved |
| Alpha Biotechnology Co. Limited | Private company limited by shares | Live |
| BLACK ALPHA CAPITAL LIMITED | Private company limited by shares | Live |
| BLESSED ALPHA CO LIMITED | Private company limited by shares | Live |
| Alpha Blockchain Group Limited | Private company limited by shares | Live |