| HK ACT! LIMITED | Private company limited by shares | Live |
| ACT1 ALLSOURCE . HONG KONG LIMITED | Private company limited by shares | Live |
| ACT2 ASSOCIATES LIMITED | Private company limited by shares | Live |
| ACT3 LIMITED | Private company limited by shares | Live |
| ACT6 LIMITED | Private company limited by shares | Live |
| ACTA LIMITED | Private company limited by shares | Dissolved |
| Acta Limited | | Live |
| Hi ACTA Limited | | Live |
| ACTA INTERNATIONAL BUSINESS COMPANY LIMITED | Private company limited by shares | Dissolved |
| ACTA (CHINA) LIMITED | Private company limited by shares | Dissolved |
| ACTA CONCEPT HK LIMITED | Private company limited by shares | Live |
| Acta Creation Limited | | Live |
| ACTA ENTERPRISES FAR EAST LIMITED | Private company limited by shares | Dissolved |
| ACTA (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| ACTA INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| ACTA TIMBER PRODUCTS LIMITED | Private company limited by shares | Dissolved |
| ACTA TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| ACTA TRADING LIMITED | Private company limited by shares | Dissolved |
| ACTACTION CO., LIMITED | Private company limited by shares | Dissolved |
| ACTAGO HONG KONG LIMITED | Private company limited by shares | Dissolved |
| ACTAK LIMITED | Private company limited by shares | Live |
| Actamid Limited | | Live |
| ACTANOR LIMITED | Private company limited by shares | Live |
| ACTAR COMPANY LIMITED | Private company limited by shares | Dissolved |
| ACTAR TECHNOLOGY (HK) CO., LIMITED | Private company limited by shares | Dissolved |
| ACTARUS LIMITED | Private company limited by shares | Live |
| ACTAS TRADING LIMITED | Private company limited by shares | Dissolved |
| ACTATEK LIMITED | Private company limited by shares | Live |
| ACTAVIS HONG KONG LIMITED | Private company limited by shares | Live |
| ACTAX LIMITED | Private company limited by shares | Live |
| ACTAX CONSULTANCY LIMITED | Private company limited by shares | Live |
| ACTAX CONSULTING LIMITED | Private company limited by shares | Live |
| Actbest Engineering Co. Limited | Private company limited by shares | Live |
| ACTBOURNE COMPANY LIMITED | Private company limited by shares | Dissolved |
| ACTC LIMITED | Private company limited by shares | Live |
| ACTCHIEF LIMITED | Private company limited by shares | Dissolved |
| ACTCO LIMITED | Private company limited by shares | Live |
| ACTCOM LIMITED | Private company limited by shares | Dissolved |
| Actcor Limited | Private company limited by shares | Live |
| ACTCORP INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| ACTCOS TRADING LIMITED | Private company limited by shares | Dissolved |
| ACTEC LIMITED | Private company limited by shares | Dissolved |
| ACTECH LIMITED | Private company limited by shares | Live |
| ActEco Limited | Private company limited by shares | Live |
| ACTECO (HK) SUPPLYCHAIN MANAGEMENT LIMITED | Private company limited by shares | Live |
| ACT-Education Consultancy Limited | Private company limited by shares | Live |
| ACTEL LIMITED | Private company limited by shares | Live |
| Actelligent Company Limited | Private company limited by shares | Live |
| ACTEM LIMITED | Private company limited by shares | Dissolved |
| CRMC ACTEM LIMITED | Private company limited by shares | Dissolved |
| ACTEN LIMITED | Private company limited by shares | Dissolved |
| ACTEN COMPANY LIMITED | Private company limited by shares | Dissolved |
| ACTEN LIMITED | Private company limited by shares | Live |
| ACTEV MOBILITY LIMITED | Private company limited by shares | Live |
| ACTEVER ENTERPRISES LIMITED | Private company limited by shares | Live |
| ACTEX LIMITED | Private company limited by shares | Dissolved |
| ACTEX ENTERPRISES LIMITED | Private company limited by shares | Live |
| ACTEZ LIMITED | Private company limited by shares | Dissolved |
| ACTFAIR LIMITED | Private company limited by shares | Live |
| ACTFAIR LIMITED | Private company limited by shares | Live |
| ACTFAST INVESTMENTS COMPANY LIMITED | Private company limited by shares | Live |
| ACTFIELD LIMITED | Private company limited by shares | Live |
| ACTFIELD ENTERPRISES LIMITED | Private company limited by shares | Live |
| ACTFIRM LIMITED | Private company limited by shares | Dissolved |
| ACTFORD LIMITED | Private company limited by shares | Dissolved |
| ACTFORD GLOBAL LIMITED | Private company limited by shares | Dissolved |
| ACTFORD HOLDINGS LIMITED | Private company limited by shares | Live |
| ACTFORD INTERNATIONAL LIMITED | Private company limited by shares | Live |
| ACTFORM LIMITED | Private company limited by shares | Dissolved |
| ACTGAIN COMPANY LIMITED | Private company limited by shares | Dissolved |
| ACTGENESIS LIMITED | Private company limited by shares | Dissolved |
| ACTGOLD GLOBAL LIMITED | Private company limited by shares | Dissolved |
| ACTGOLD INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| ACTGOLD TRADING LIMITED | Private company limited by shares | Dissolved |
| ACTGOLD TRADING LIMITED | Private company limited by shares | Live |
| ACTGREAT LIMITED | Private company limited by shares | Live |
| ACTH INTERNATIONAL TRADING LIMITED | Private company limited by shares | Live |
| ACTH TRADING COMPANY LIMITED | | Live |
| ACTHERM COMPANY LIMITED | Private company limited by shares | Live |
| Acthink Limited | | Live |
| ACTHOPE LIMITED | Private company limited by shares | Dissolved |
| ACTI HOLDING LIMITED | Private company limited by shares | Dissolved |
| ACTIAS COMPANY LIMITED | Private company limited by shares | Live |
| ACTIC ELECTRONICS CO., LIMITED | Private company limited by shares | Live |
| Actic Innovation Limited | Private company limited by shares | Live |
| ACTIC OFFICE SUPPLIES COMPANY LIMITED | Private company limited by shares | Dissolved |
| ACTICO LIMITED | Private company limited by shares | Live |
| ACTICO TOYS LIMITED | Private company limited by shares | Dissolved |
| Acticule Life Sciences (Hong Kong) Limited | Private company limited by shares | Live |
| CHINA ACTIF LIMITED | Private company limited by shares | Live |
| China ACTIF Limited | Private company limited by shares | Live |
| Actifon Limited | Private company limited by shares | Live |
| Actify Limited | | Live |
| Actigen Limited | Private company limited by shares | Live |
| Actik Trading Co., Limited | Private company limited by shares | Live |
| ACTIM LIMITED | Private company limited by shares | Dissolved |
| ACTIMA COMPUTER LIMITED | Private company limited by shares | Dissolved |
| Actin Limited | Private company limited by shares | Live |
| ACTIN PACIFIC LIMITED | Private company limited by shares | Live |
| ACTIN PACIFIC HK LIMITED | Private company limited by shares | Live |