| EcoMat Applied Innovation Limited | | Live |
| APPLIED EDUCATION PSYCHOLOGY ASSOCIATION LIMITED | Company limited by guarantee | Dissolved |
| Applied Electronic Publishing Limited | Private company limited by shares | Live |
| APPLIED ELECTRONICS LIMITED | Private company limited by shares | Live |
| Full Rich Applied Energy Technologies Limited | Private company limited by shares | Live |
| APPLIED ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| APPLIED ENGINEERING STANDARDS LIMITED | Private company limited by shares | Live |
| APPLIED ENTERPRISES LIMITED | Private company limited by shares | Live |
| APPLIED EQUIPMENT (HONG KONG) LIMITED | Private company limited by shares | Live |
| Applied Mechatronic Equipment Limited | Private company limited by shares | Live |
| Zhongke Carbon Fibre Composite (HK) Applied Technology Research Institute Limited | | Live |
| APPLIED FILMS ASIA PACIFIC LIMITED | Private company limited by shares | Dissolved |
| CHINA FINANCIAL MANAGEMENT APPLIED RESEARCH LIMITED | Private company limited by shares | Dissolved |
| Applied Finery Limited | Private company limited by shares | Live |
| Flint Applied Math Limited | Private company limited by shares | Live |
| May Flower Applied Materials Co., Limited | Private company limited by shares | Live |
| APPLIED BUSINESS FORMS LIMITED | Private company limited by shares | Dissolved |
| FOUNDATION APPLIED TECHNOLOGY LIMITED | Private company limited by shares | Live |
| FRESH APPLIED PROVISIONS TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| GEMCH APPLIED MATERIALS CO., LIMITED | Private company limited by shares | Live |
| Global Nuojiang Gainer Scientists Applied Institute Limited | Private company limited by shares | Live |
| GLOBAL APPLIED TECHNOLOGY LIMITED | Private company limited by shares | Live |
| CHINA APPLIED PSYCHOLOGY RESEARCH GROUP LIMITED | Private company limited by shares | Dissolved |
| CHINA APPLIED PSYCHOLOGY EDUCATION GROUP CO., LIMITED | Private company limited by shares | Live |
| ZhongKe Space-tec Applied Develop Group Limited | Private company limited by shares | Live |
| APPLIED TECHNOLOGY GROUP LIMITED | Private company limited by shares | Live |
| HANRICH APPLIED SOLUTIONS LIMITED | Private company limited by shares | Live |
| HEAT APPLIED TECHNOLOGY LIMITED | Private company limited by shares | Live |
| GREENWAY HERB APPLIED SCIENCE LIMITED | Private company limited by shares | Live |
| APPLIED INVESTMENT (HK) LIMITED | Private company limited by shares | Dissolved |
| FUBANG APPLIED MATERIALS (HK) LIMITED | Private company limited by shares | Dissolved |
| Innovative Applied Materials (H.K.) Limited | | Live |
| KASTEN CHASE APPLIED RESEARCH (H.K.) LIMITED | Private company limited by shares | Dissolved |
| APPLIED DATA TECHNOLOGIES (HK), LIMITED | Private company limited by shares | Dissolved |
| APPLIED TECHNOLOGY (H.K.) LIMITED | Private company limited by shares | Live |
| H.K. APPLIED TECHNOLOGY HOLDINGS LIMITED | Private company limited by shares | Live |
| KOKON APPLIED MICROELECTRONICS TECHNOLOGY (HK) COMPANY LIMITED | Private company limited by shares | Dissolved |
| APPLIED SURFACE TECHNOLOGY (HK) COMPANY LIMITED | Private company limited by shares | Live |
| APPLIED INNOVATIONS (HOLDINGS) LIMITED | Private company limited by shares | Dissolved |
| Applied Wine Holdings Company Limited | Private company limited by shares | Live |
| Hong Kong International Board Academy of Applied Capital Science Limited | Private company limited by shares | Live |
| APPLIED CHEMISTRY (HONG KONG) LIMITED | Private company limited by shares | Live |
| RONGKE NEW MATERIAL APPLIED (HONG KONG) CO., LIMITED | Private company limited by shares | Live |
| Hong Kong Institute Of Applied Research On Infant And Adolescent Mental Health Co., Limited | | Live |
| HONG KONG COYEE APPLIED SCIENCE TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| HONG KONG BAPTIST UNIVERSITY MSC IN APPLIED ACCOUNTING AND FINANCE ALUMNI ASSOCIATION LIMITED | Company limited by guarantee | Live |
| Hong Kong Modern Agriculture Applied Science And Technology Research Group Limited | Private company limited by shares | Live |
| Hong Kong Society for Industrial and Applied Mathematics Limited | Company limited by guarantee | Live |
| CHT (HONG KONG) YIJING APPLIED JOINT RESEARCH INSTITUTE COMPANY LIMITED | Private company limited by shares | Dissolved |
| Hong Kong Mathmatics and Physics Applied Research Institute Limited | | Live |
| HONG KONG APPLIED SCIENCE AND TECHNOLOGY RESEARCH INSTITUTE COMPANY LIMITED | Private company limited by shares | Live |
| Hong Kong Applied Intelligent Technologies Limited | Private company limited by shares | Live |
| Applied Ceramics (Hong Kong) Limited | Private company limited by shares | Live |
| HONG KONG (INTERNATIONAL) CIMS APPLIED ENGINEERING CO. LIMITED | Private company limited by shares | Dissolved |
| APPLIED COMPUTING (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| APPLIED ELECTROLESS CONCEPTS (HONG KONG) LIMITED | Private company limited by shares | Live |
| SOLAR APPLIED MATERIALS TECHNOLOGY (HONG KONG) LIMITED | Private company limited by shares | Ceased to exist as a separate entity |
| Applied Wine Hong Kong Limited | Private company limited by shares | Live |
| APPLIED MATERIALS HONG KONG LIMITED | Private company limited by shares | Live |
| APPLIED HONG KONG PROPERTIES LIMITED | Private company limited by shares | Live |
| HONG KONG COLLEGE OF APPLIED SCIENCE AND TECHNOLOGY LIMITED | | Live |
| APPLIED TECH SYSTEMS HONG KONG LIMITED | Private company limited by shares | Live |
| APPLIED VALUE HONG KONG LIMITED | Private company limited by shares | Live |
| APPLIED WEATHER TECHNOLOGY (HONG KONG) LIMITED | Private company limited by shares | Live |
| HONGKONG DDQ APPLIED MATERIALS CO., LIMITED | Private company limited by shares | Dissolved |
| HongKong Triumph Applied Materials Co., Limited | | Live |
| APPLIED SOFTWARE HONGKONG LIMITED | Private company limited by shares | Dissolved |
| HongKong Microwind Applied Instrument System Limited | Private company limited by shares | Live |
| APPLIED INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Live |
| APPLIED CHEMICALS INDUSTRIES HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| APPLIED PRECIOUS METAL INDUSTRIES COMPANY LIMITED | Private company limited by shares | Dissolved |
| APPLIED INFORMATION DIGITAL TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| AEROSPACE (INT'L) APPLIED TECH RESEARCH INSTITUTE LIMITED | Private company limited by shares | Live |
| Asia Applied Psychology Institute Limited | Private company limited by shares | Live |
| HumanEnhancement Applied Technology Research Institute Limited | Private company limited by shares | Live |
| CHINA APPLIED SCIENCE AND TECHNOLOGY RESEARCH INSTITUTE COMPANY LIMITED | Private company limited by shares | Live |
| CHINA LIGHTING APPLIED SCIENCE RESEARCH INSTITUTE LIMITED | Private company limited by shares | Dissolved |
| APPLIED SCIENTIFIC INSTRUMENT (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| APPLIED INSTRUMENTATION LIMITED | Private company limited by shares | Live |
| Applied Artificial Intelligence Laboratory Limited | Private company limited by shares | Live |
| Applied International Limited | | Live |
| APPLIED ANTIBODY CENTRES INTERNATIONAL CO., LIMITED | Private company limited by shares | Dissolved |
| International Digital Asset Applied Limited | Private company limited by shares | Live |
| INTERNATIONAL APPLIED INTELLIGENCE CONSULTANCY LIMITED -THE- | Private company limited by shares | Dissolved |
| INTERNATIONAL APPLIED EDUCATION GROUP (ASIA) LIMITED | Private company limited by shares | Live |
| STANFORD APPLIED ENGINEERING INTERNATIONAL (HK) LIMITED | Private company limited by shares | Dissolved |
| APPLIED INTERNATIONAL HOLDINGS LIMITED | Private company limited by shares | Live |
| INTERNATIONAL APPLIED PSYCHOLOGY CERTIFICATION INSTITUTE LIMITED | Private company limited by shares | Dissolved |
| APPLIED MATERIAL INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| Applied Material International Limited | Private company limited by shares | Live |
| ARKONIC APPLIED MATERIALS INTERNATIONAL LIMITED | Private company limited by shares | Live |
| APPLIED INVESTMENT (ASIA) LIMITED | Private company limited by shares | Live |
| KEWELL APPLIED TECHNOLOGY LIMITED | Private company limited by shares | Live |
| APPLIED RESEARCH LABORATIES (FAR EAST) LIMITED | Private company limited by shares | Dissolved |
| Applied Laboratories Limited | Private company limited by shares | Live |
| Applied Blockchain & Crypto Labs Limited | Company limited by guarantee | Live |
| APPLIED MICROANALYSIS LABS LIMITED | Private company limited by shares | Dissolved |
| Master Link Applied Technology (HK) Company Limited | Private company limited by shares | Live |
| APPLIED MACHINERY LIMITED | Private company limited by shares | Dissolved |
| APPLIED MAINTENANCE LIMITED | Private company limited by shares | Dissolved |