| Train With Acton Limited | Private company limited by shares | Live |
| ACTONBRIDGE LIMITED | Private company limited by shares | Dissolved |
| ACTOP LIMITED | Private company limited by shares | Live |
| ACTOPLUS TT LIMITED | | Live |
| ACTOPLUS E-GOGO LIMITED | Private company limited by shares | Live |
| ACTOR LIMITED - THE - | Private company limited by shares | Dissolved |
| ACTOR LIMITED | Private company limited by shares | Dissolved |
| SKY ACTOR LIMITED | Private company limited by shares | Dissolved |
| DRAGON ACTOR LIMITED | Private company limited by shares | Live |
| PURE ACTOR LIMITED | Private company limited by shares | Dissolved |
| Actorbase Limited | | Live |
| ACTORS' FAMILY LIMITED | Private company limited by shares | Live |
| DRAGON STARS ACTORS LIMITED | Private company limited by shares | Dissolved |
| Actor's Vision Limited | Company limited by guarantee | Live |
| ACTPAK COMPANY LIMITED | Private company limited by shares | Live |
| ACTPRO LIMITED | Private company limited by shares | Live |
| ACTPRO AUDIO MANUFACTURER CO. LIMITED | Private company limited by shares | Live |
| ACTQC LIMITED | Private company limited by shares | Live |
| ACTRADE LIMITED | Private company limited by shares | Dissolved |
| ACTRADE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| ACTRAIN TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| ActRealTime Company Limited | Private company limited by shares | Dissolved |
| ACTRICH COMPANY LIMITED | Private company limited by shares | Dissolved |
| ACTRICH INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| ACTRISE COMPANY LIMITED | Private company limited by shares | Dissolved |
| ACTRIX LIMITED | Private company limited by shares | Dissolved |
| ACTRON LIMITED | Private company limited by shares | Dissolved |
| ACTRONICS COMPANY LIMITED | Private company limited by shares | Live |
| ACTRONTECH COMPANY LIMITED | Private company limited by shares | Live |
| ACTRUCY COMPANY LIMITED | Private company limited by shares | Dissolved |
| ACTRX LIMITED | Private company limited by shares | Live |
| ACTS LIMITED | Private company limited by shares | Dissolved |
| A.C.T.S. Limited | Private company limited by shares | Dissolved |
| ACTS HK Limited | Private company limited by shares | Live Commenced dormancy on 05-Dec-2014 |
| Acts 29 Limited | Company limited by guarantee | Live |
| ACTs and Associates Limited | Private company limited by shares | Live |
| CLASS ACTS LIMITED | Private company limited by shares | Dissolved |
| ACTS CO., LIMITED | Private company limited by shares | Live |
| ACTS CONCEPTS LIMITED | Private company limited by shares | Live Commenced dormancy on 09-Apr-2014 |
| CYBER ACTS LIMITED | Private company limited by shares | Dissolved |
| ACTS UNITED GROUP LIMITED | Private company limited by shares | Live |
| ACTS TECHNOLOGY LIMITED | Private company limited by shares | Live |
| ACTS TRADING COMPANY LIMITED | Private company limited by shares | Live |
| Get Your Acts Together Limited | Private company limited by shares | Live |
| ActsCode Limited | Private company limited by shares | Live |
| ACTSEEK CO., LIMITED | Private company limited by shares | Live |
| ACTSING LIMITED | Private company limited by shares | Dissolved |
| ACTSON LIMITED | Private company limited by shares | Dissolved |
| ACTSPORT ACTIVEWEAR CO., LIMITED | Private company limited by shares | Dissolved |
| ACTSTRONG LIMITED | Private company limited by shares | Live |
| ACTSUN LIMITED | Private company limited by shares | Dissolved |
| ACTSUN INTERNATIONAL LIMITED | Private company limited by shares | Live |
| ACTSUN INTERNATIONAL INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| ACTT LIMITED | Private company limited by shares | Live |
| Acttao Investment Holding Co., Limited | Private company limited by shares | Live |
| ACTUA RE LIMITED | Private company limited by shares | Live |
| ACTUAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| ACTUAL LIMITED | Private company limited by shares | Live |
| Asia Actual Limited | Private company limited by shares | Live |
| ACTUAL BEST LIMITED | Private company limited by shares | Live |
| Actual Business Limited | Private company limited by shares | Live |
| China Business Actual Combat Research Center Limited | Private company limited by shares | Live |
| Actual Fiction Limited | | Live |
| ACTUAL GAIN INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| ACTUAL GROW LIMITED | Private company limited by shares | Live |
| ACTUAL GROW INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| Actual Healthcare Limited | | Live |
| A Member of China Economy Actual Cultural Media Group Limited | Private company limited by shares | Dissolved |
| CHINA ACTUAL COMBAT PSYCHOLOGY RESEARCH INSTITUTE LIMITED | Private company limited by shares | Live |
| ACTUAL WEALTH LIMITED | Private company limited by shares | Live |
| Actualcolor Instruments HK Limited | Private company limited by shares | Live |
| ACTUALIZE COMPANY LIMITED | Private company limited by shares | Dissolved |
| Actualize Limited | Private company limited by shares | Live |
| ACTUALIZE ASIA LIMITED | Private company limited by shares | Live |
| ACTUALIZE EDUCATION LIMITED | | Live |
| Group Actualize Hong Kong Limited | Private company limited by shares | Live |
| Actualize Hong Kong Limited | Private company limited by shares | Live |
| Actually Limited | Private company limited by shares | Live |
| ART ACTUALLY LIMITED | Private company limited by shares | Live |
| ACTUALO LIMITED | Company limited by guarantee | Dissolved |
| ACTUAPLAST CHINA LIMITED | Private company limited by shares | Live |
| ACTUAPLAST RAPID PROTOTYPING LIMITED | Private company limited by shares | Live |
| PFH ACTUARIES LIMITED | | Live |
| NMG RISK MANAGERS & ACTUARIES (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| PRIVATE ACTUARY LIMITED | Private company limited by shares | Live |
| ACTUARYAPP LIMITED | Private company limited by shares | Live |
| Actuasia Limited | Private company limited by shares | Live |
| ACTUATE LIMITED | Private company limited by shares | Live |
| IDENTIFY & ACTUATE TECH (HK) LIMITED | Private company limited by shares | Live |
| Actuator Limited | Private company limited by shares | Live |
| MEMS Actuator Hong Kong Limited | | Live |
| GERMANY SIPOS ELECTRIC ACTUATOR LIMITED | Private company limited by shares | Live |
| ACTUATOR TECHNOLOGY LIMITED | Private company limited by shares | Live |
| CHINA ACTUATOR TECHNOLOGY GROUP SHARES LIMITED | Private company limited by shares | Live |
| HK TOMUU ACTUATOR TECHNOLOGY CO., LIMITED | | Live |
| X-ING Linear Actuator Co., Limited | Private company limited by shares | Live |
| ACTUATORS LIMITED | Private company limited by shares | Dissolved |
| BELIMO ACTUATORS LIMITED | Private company limited by shares | Live |
| ACTUED LIMITED | Private company limited by shares | Live |
| ACTUEL PUBLIC AFFAIRS CONSULTANTS LIMITED | Private company limited by shares | Dissolved |