| Acadia Capital Limited | Private company limited by shares | Live |
| ACADIA INVESTMENT COMPANY LIMITED | Private company limited by shares | Live |
| Acadia Pharm Limited | Private company limited by shares | Live |
| Acadia Trading Limited | | Live |
| ACADIMA LIMITED | Private company limited by shares | Live |
| Acadini Limited | | Live |
| ACADON LIMITED | Private company limited by shares | Dissolved |
| ACADSOC LIMITED | Private company limited by shares | Live |
| ACAEDL LIMITED | Private company limited by shares | Dissolved |
| ACAER DT CENTER LIMITED | Private company limited by shares | Live |
| ACAF PRODUCTS LIMITED | Private company limited by shares | Live |
| Acaga Group Company Limited | Private company limited by shares | Live |
| ACAI LIMITED | Private company limited by shares | Live |
| Acal Asia Limited | Private company limited by shares | Live |
| ACALA CO., LIMITED | Private company limited by shares | Live |
| Acala Culture Limited | Private company limited by shares | Live |
| ACALA GAME CO., LIMITED | Private company limited by shares | Live |
| Acala International Co Limited | Private company limited by shares | Dissolved |
| ACAMAR LIMITED | Private company limited by shares | Dissolved |
| ACAMAR LIMITED | Private company limited by shares | Live |
| ACAMAS HOLDING LIMITED | | Live |
| ACAMPLUS LIMITED | Private company limited by shares | Live |
| ACAMPO LIMITED | Private company limited by shares | Dissolved |
| ACAMPORA CONSULTING LIMITED | Private company limited by shares | Dissolved |
| ACAMPORA ASSET MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| ACAN ENGINEERING LIMITED | | Live |
| Acana Investments Limited | Private company limited by shares | Live |
| Acanics Limited | Private company limited by shares | Live |
| ACANTHA LIMITED | Private company limited by shares | Live |
| ACANTHURUS LIMITED | Private company limited by shares | Live |
| ACANTHUS HANDICRAFTS (H.K.) LIMITED | Private company limited by shares | Live |
| ACANTHUS INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| ACANTHUS MINT LIMITED | Private company limited by shares | Dissolved |
| ACANTHUS SOLUTIONS LIMITED | Private company limited by shares | Live |
| ACANTIC COMPANY LIMITED | Private company limited by shares | Live |
| Acao (HK) Limited | Private company limited by shares | Live |
| ACAPBIO LIMITED | Private company limited by shares | Live |
| ACAPELLA LIMITED | Private company limited by shares | Dissolved |
| ACAPELLA BUSINESS LIMITED | Private company limited by shares | Live |
| Acaplat International Limited | Private company limited by shares | Live |
| ACAPO LIMITED | Private company limited by shares | Live |
| Acapro Academic Production Limited | Private company limited by shares | Live |
| Acapture APAC Limited | Private company limited by shares | Live |
| Acapulco Limited | Private company limited by shares | Live |
| ACAR COMPANY LIMITED | Private company limited by shares | Dissolved |
| ACAR COMPANY LIMITED | Private company limited by shares | Live |
| ACARA LIMITED | Private company limited by shares | Live |
| Rio ACARAY Co., Limited | | Live |
| ACARDI LIMITED | Private company limited by shares | Live |
| ACARDIAN COMPANY LIMITED | Private company limited by shares | Live |
| Acargotrade Limited | | Live |
| Acarman (Hong Kong) Limited | | Live |
| ACARME CO., LIMITED | Private company limited by shares | Live |
| ACARS LIMITED | Private company limited by shares | Dissolved |
| Acarway Digital Co., Limited | Private company limited by shares | Live |
| MAHA ACARYA YANG FO XING FOUNDATION LIMITED | Company limited by guarantee | Live |
| ACASA LIMITED | Private company limited by shares | Live |
| Acaserse Limited | | Live |
| ACASIA-GGH MALTINGS LIMITED | Private company limited by shares | Dissolved |
| ACASS-SYSTEMS HK LIMITED | Private company limited by shares | Live |
| ACASTE LIMITED | Private company limited by shares | Dissolved |
| ACASTRO COMPANY LIMITED | Private company limited by shares | Dissolved |
| A-Casual Company Limited | Private company limited by shares | Live |
| ACASUS LIMITED | Private company limited by shares | Live |
| Acat Trade Limited | Private company limited by shares | Live |
| Acatris Hong Kong Limited | Private company limited by shares | Live |
| ACATUS LIMITED | Private company limited by shares | Live |
| Acatva Co. Limited | Private company limited by shares | Live |
| AcbaT Limited | Private company limited by shares | Live |
| ACBC LIMITED | Private company limited by shares | Live |
| ACBC Asia (HK) Limited | | Live |
| ACBC Investment Limited | | Live |
| ACBD HK LIMITED | Private company limited by shares | Live |
| ACBEAULION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| ACBEL (H.K.) TECHNOLOGIES LIMITED | Private company limited by shares | Dissolved |
| A.C.C. ADVISORS LIMITED | Private company limited by shares | Live |
| VENUS BRIALE GOWN AND ACC. CO., LIMITED | Private company limited by shares | Live |
| COLORFUL GROUP ACC. CO., LIMITED | Private company limited by shares | Live |
| A.C.C. SOLUTIONS CO., LIMITED | Private company limited by shares | Live |
| YILIN ACC. CO., LIMITED | Private company limited by shares | Live |
| BACKER (ACC) BUSINESS CONSULTANCY LIMITED | Private company limited by shares | Live |
| A.C.C. Fashion Limited | Private company limited by shares | Live |
| GLOBAL ACC. LIMITED | Private company limited by shares | Live |
| HongKong Best Garden Acc. Limited | Private company limited by shares | Live |
| Top Honour (Acc & Tax) Limited | Private company limited by shares | Live |
| Leading Acc. Manufacture Co., Limited | Private company limited by shares | Live |
| WIN MOST INTERNATIONAL (ACC) LIMITED | Private company limited by shares | Live |
| XIAMEN A.C.C., A.G.M.S., & NO. 2 MIDDLE SCHOOL (HK) ALUMNI ASSOCIATION LIMITED | Company limited by guarantee | Dissolved |
| AC&C SOLUTIONS LIMITED | Private company limited by shares | Live |
| Fuzhou Yida Auto Parts & Acc. Co., Limited | Private company limited by shares | Live |
| ACC1O Hong Kong Catalonia Competitiveness Agency Limited | Private company limited by shares | Live |
| ACC4S TECHNOLOGY LIMITED | Private company limited by shares | Live |
| ACCA LIMITED | Private company limited by shares | Dissolved |
| ACCA LIMITED | Private company limited by shares | Dissolved |
| ACCA LIMITED | Private company limited by shares | Live |
| ACCA ENTERPRISE LIMITED | Private company limited by shares | Live |
| ACCA ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| ACCA HANDBAGS LIMITED | Private company limited by shares | Dissolved |
| ACCA INVESTMENT LIMITED | Private company limited by shares | Live |
| ACCA JEWELRY LIMITED | Private company limited by shares | Live |