| ATOP EYEWEAR CO. LIMITED | Private company limited by shares | Live |
| A-Top Global Trading Limited | Private company limited by shares | Live |
| A-TOP INNOVATION GROUP LIMITED | Private company limited by shares | Live |
| A-TOP MEDICAL GROUP LIMITED | Private company limited by shares | Live |
| ATOP Health Limited | Private company limited by shares | Live |
| A-TOP INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| ATOP INDUSTRIAL GROUP LIMITED | Private company limited by shares | Live |
| ATOP ALL INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| ATOP Technologies (Hong Kong) Limited | Private company limited by shares | Live |
| Atop Limulus Limited | Private company limited by shares | Live |
| ATOP MANAGEMENT & CONSULTING CO., LIMITED | Private company limited by shares | Dissolved |
| A-TOP NETWORKING LIMITED | Private company limited by shares | Dissolved |
| Atop Yi Pain Rehabilitation Center Limited | Private company limited by shares | Live |
| ATOP RESOURCES LIMITED | Private company limited by shares | Live |
| Atop Slim Beauty Limited | Private company limited by shares | Live |
| SUCCESS ATOP LIMITED | Private company limited by shares | Live |
| A-TOP TECHNOLOGIES LIMITED | Private company limited by shares | Dissolved |
| ATOP NANO TECHNOLOGY LIMITED | Private company limited by shares | Live |
| A-TOP TRADING LIMITED | Private company limited by shares | Dissolved |
| ATOP (TRADING) LIMITED | Private company limited by shares | Live |
| Atop1 Limited | | Live |
| ATOPCO LIMITED | Private company limited by shares | Dissolved |
| ATOPGOLD GROUP CO., LIMITED | Private company limited by shares | Live |
| ATOPIA LIMITED | Private company limited by shares | Live |
| ATOPRINTING COMPANY LIMITED | Private company limited by shares | Live |
| ATOPRO LIMITED | Private company limited by shares | Live |
| ATOPRO GROUP LIMITED | Private company limited by shares | Live |
| Atopt Limited | Private company limited by shares | Live |
| ATOPTEX CO., LIMITED | Private company limited by shares | Live |
| ATOR CONSULTANT LIMITED | Private company limited by shares | Live |
| ATOR ELECTRONICS LIMITED | Private company limited by shares | Live |
| ATOR FURNITURES (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| ATOR FURNITURE (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| Ator Import&Export Limited | Private company limited by shares | Live |
| ATOR INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| ATOR INTERNATIONAL LIMITED | Private company limited by shares | Live |
| HONG KONG ATOR INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| ATORA INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| A-TORCHMOULD LIMITED | Private company limited by shares | Live |
| Atorex Limited | Private company limited by shares | Dissolved |
| ATORIENT LIMITED | Private company limited by shares | Dissolved |
| ATORUM HONG KONG CO., LIMITED | Private company limited by shares | Live |
| Atos HK Limited | Private company limited by shares | Dissolved |
| ATOS ELECTROHYDRAULICS HK LIMITED | Private company limited by shares | Dissolved |
| Atos Holding Hong Kong 1 Limited | | Live |
| Atos Credit System Limited | Private company limited by shares | Live |
| ATOS INFORMATION TECHNOLOGY HK LIMITED | Private company limited by shares | Live |
| ATOS H.K. TRADING LIMITED | Private company limited by shares | Live |
| ATOSHI LIMITED | Private company limited by shares | Live |
| ATOSS ASIA LIMITED | Private company limited by shares | Live |
| ATO-SYSTEM LIMITED | Private company limited by shares | Live |
| ATOTA COMPANY LIMITED | Private company limited by shares | Live |
| ATOTECH ELECTRIC GROUP (H.K.) HOLDING COMPANY LIMITED | Private company limited by shares | Dissolved |
| ATOTECH ASIA PACIFIC LIMITED | Private company limited by shares | Live |
| ATOTEMZ INDUSTRY LIMITED | Private company limited by shares | Live |
| ATOUBA LIMITED | Private company limited by shares | Dissolved |
| A-TOUCH AUTO PARTS CO., LIMITED | Private company limited by shares | Live |
| A-TOUCH TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| HK A-Touch Technology Co., Limited | Private company limited by shares | Live |
| Shenzhen A-Touch Technology Co., Limited | Private company limited by shares | Live |
| HONGKONG ATOUCH CO., LIMITED | Private company limited by shares | Live |
| Atouchat Limited | | Live |
| ATOUVI LIMITED | Private company limited by shares | Live |
| AToxford Limited | Private company limited by shares | Live |
| ATOY COMPANY LIMITED | Private company limited by shares | Live |
| ATOYA LIMITED | Private company limited by shares | Dissolved |
| ATOYOTA MANUFACTURING COMPANY LIMITED | Private company limited by shares | Dissolved |
| ATOZ LIMITED | Private company limited by shares | Dissolved |
| ATOZ LIMITED | Private company limited by shares | Dissolved |
| ATOZ LIMITED | Private company limited by shares | Live |
| ATOZ HK CPA LIMITED | Private company limited by shares | Live |
| AtoZ Analytics Limited | | Live |
| Atoz China Supply Service Limited | | Live |
| HONGKONG ATOZ HOMEWARE INTERNATIONAL GROUP CO., LIMITED | Private company limited by shares | Dissolved |
| ATOZ COMPUNET LIMITED | Private company limited by shares | Dissolved |
| ATOZ BUSINESS CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| ATOZ HK CONSULTING LIMITED | Private company limited by shares | Live |
| ATOZ DESIGN AND DECORATORS LIMITED | Private company limited by shares | Dissolved |
| ATOZ DESIGN LIMITED | Private company limited by shares | Live |
| ATOZ DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| ATOZ ENERGY LIMITED | Private company limited by shares | Live |
| AtoZ Holding Limited | Private company limited by shares | Live |
| HONG KONG ATOZ HOMEWARE CO., LIMITED | Private company limited by shares | Dissolved |
| ATOZ GROUP (HONG KONG) LIMITED | | Live |
| ATOZ (HONG KONG) LIMITED | Private company limited by shares | Live |
| HONG KONG ATOZ POWER LIMITED | Private company limited by shares | Live |
| ATOZ INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| ATOZ INDUSTRIAL LIMITED | Private company limited by shares | Live |
| ATOZ INTERNATIONAL LIMITED | Private company limited by shares | Live |
| ATOZ INTERNATIONAL HONG KONG COMPANY LIMITED | Private company limited by shares | Dissolved |
| ATOZ INTERNATIONAL TRADING CO., LIMITED | Private company limited by shares | Live |
| ATOZ INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| ATOZ HK INVESTMENT LIMITED | | Live |
| ATOZ DESIGN LABS CO., LIMITED | Private company limited by shares | Live |
| ATOZ MARINE LIMITED | Private company limited by shares | Live |
| ATOZ NOMINEES LIMITED | Private company limited by shares | Live |
| ATOZ PETRO-CHEMICALS LIMITED | Private company limited by shares | Dissolved |
| Atoz Pharmaceutical (HK) Limited | Private company limited by shares | Live |
| ATOZ PRIME TRADE LIMITED | Private company limited by shares | Live |
| NEW ATOZ GRAPHIC & PRINTING LIMITED | Private company limited by shares | Dissolved |