| PROTEC LIMITED | Private company limited by shares | Dissolved |
| PROTEC T&C LIMITED | | Live |
| PROTEC ASIA COMPANY LIMITED | Private company limited by shares | Live |
| PROTEC ENTERPRISES LIMITED | Private company limited by shares | Live |
| PROTEC HOLDING LIMITED | Private company limited by shares | Live |
| PRO-TEC INVESTMENT LIMITED | Private company limited by shares | Live |
| PROTEC MARITIME LIMITED | Private company limited by shares | Dissolved |
| PROTECALL INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| PROTECALL GROUP CO., LIMITED | Private company limited by shares | Live |
| PROTECH COMPANY LIMITED | Private company limited by shares | Dissolved |
| IT PRO-TECH LIMITED | Private company limited by shares | Dissolved |
| Protech Limited | Private company limited by shares | Live |
| TOP PROTECH CO LIMITED | Private company limited by shares | Live |
| PROTECH CENTURY LIMITED | Private company limited by shares | Live |
| PRO-TECH ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| PROTECH HEALTHCARE LIMITED | Private company limited by shares | Dissolved |
| INGRAM PROTECH LIMITED | Private company limited by shares | Live |
| PRO-TECH INNOVATION COMPANY LIMITED | Private company limited by shares | Dissolved |
| SALEMAY PRO-TECH LIMITED | Private company limited by shares | Live |
| Skyware ProTech Limited | Private company limited by shares | Live |
| Protech Sports Limited | Private company limited by shares | Live |
| PRO-TECHNIC COMPANY LIMITED | Private company limited by shares | Live |
| PRO-TECHNIC MACHINERY LIMITED | Private company limited by shares | Live |
| ProTechnology Limited | Private company limited by shares | Live |
| Protechssor Limited | Private company limited by shares | Live |
| GENERAL PROTECHT GROUP LIMITED | Private company limited by shares | Live |
| PROTECK LIMITED | Private company limited by shares | Live |
| Proteco Security Management Limited | Private company limited by shares | Live |
| PROTECO INTERNATIONAL TRADE CO., LIMITED | Private company limited by shares | Live |
| PROTECOAT COMPANY LIMITED | Private company limited by shares | Live |
| PROTECSEA Limited | Private company limited by shares | Live |
| UV SUN PROTECT COMPANY LIMITED | Private company limited by shares | Dissolved |
| PROTECT LIMITED | Private company limited by shares | Live |
| Protect IT Limited | Private company limited by shares | Live |
| Pet Protect Limited | | Live |
| APOLLON PROTECT ADMINISTRATION LIMITED | Private company limited by shares | Dissolved |
| ALFA PROTECT LIMITED | Private company limited by shares | Live |
| Protect Hong Kong Alliance Limited | Company limited by guarantee | Live |
| CHINA PROTECT ANCIENT TEA TREES ASSOCIATION LIMITED | Private company limited by shares | Live |
| USA AOMANSEN PLANT PROTECT LIMITED | Private company limited by shares | Live |
| CHINA PROTECT LAW LIMITED | Private company limited by shares | Live |
| PROTECT FOREIGN INVESTMENT IN CHINA LIMITED | Private company limited by shares | Dissolved |
| P2P PROTECT CO., LIMITED | Private company limited by shares | Live |
| DM PROTECT CO., LIMITED | Private company limited by shares | Live |
| GAOMI GANGSHENG LABOR PROTECT PRODUCTS CO., LIMITED | Private company limited by shares | Live |
| TAIWAN HEIMAO PROTECT ENVIRONMENT EQUIPMENTS CO., LIMITED | Private company limited by shares | Live |
| TAIWAN HEIMAO PROTECT ENVIRONMENT TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| KIMBAR PROTECT CO., LIMITED | Private company limited by shares | Live |
| TAIWEI ENVIRONMENT PROTECT TECHNOLOGY (HONGKONG) CO., LIMITED | Private company limited by shares | Dissolved |
| Shanghai XuanAn Environment Protect Technical (HongKong) Co., Limited | Private company limited by shares | Live |
| Protect Construction Engineering Co. Limited | Private company limited by shares | Live |
| PROTECT WATERPROOFING CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| DATA PROTECT LIMITED | Private company limited by shares | Live |
| E.C.Z PROTECT LIMITED | Private company limited by shares | Dissolved |
| PROTECT LOCKSMITH & ENGINEERING CO. LIMITED | Private company limited by shares | Live |
| PROTECT WATER-PROOF ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| PROTECT WATER-PROOF ENGINEERING CO. LIMITED | Private company limited by shares | Dissolved |
| PROTECT ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| Family Protect Company Limited | Private company limited by shares | Live |
| AXA Global Protect (Hong Kong) Limited | Private company limited by shares | Live |
| EVONEX GOLD PROTECT LIMITED | Private company limited by shares | Live |
| Granada Protect Company Limited | | Live |
| World Old Trees Protect Research Center (Asia) Group Limited | Private company limited by shares | Live |
| ML.ROLAN MEDICINE PROTECT SKIN RESEARCH CENTER (H.K.) BOHUI INTERNATIONAL GROUP LIMITED | Private company limited by shares | Dissolved |
| HONGKONG GREEN PROTECT CHEMICAL INT'L GROUP CO., LIMITED | Private company limited by shares | Dissolved |
| Protect Hairologist Company Limited | Private company limited by shares | Live |
| Protect Health Company Limited | Private company limited by shares | Live |
| HEALTH PROTECT HONG KONG LIMITED | Private company limited by shares | Dissolved |
| HONG KONG JIAJIE SHI ORAL PROTECT LIMITED | Private company limited by shares | Dissolved |
| JUST PROTECT INDUSTRY LIMITED | Private company limited by shares | Live |
| GERMANY AINONG INT'L CROP SCIENCE PROTECT LIMITED | Private company limited by shares | Live |
| PROTECT INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| PROTECT LINK LIMITED | Private company limited by shares | Live |
| JAPAN MAGIC MEDICINE PROTECT SKIN RESEARCH CENTER (H.K.) FANKAIR INT'L GROUP LIMITED | Private company limited by shares | Live |
| CHINA NINGBO FENGHUA XISHAN TEMPLE PROTECT RE-DEVELOPMENT MANAGEMENT GROUP LIMITED | Private company limited by shares | Dissolved |
| PROTECT MEDICAL CENTRE LIMITED | Private company limited by shares | Live |
| PROTECT REMEDIAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| RIGHT PASS PROTECT & CLEAN CO., LIMITED | Private company limited by shares | Live |
| CHINA PROTECT INTERNATIONAL GUARANTEE AND SECURITIES (H.K.) LIMITED | Private company limited by shares | Dissolved |
| PROTECT SECURITY LIMITED | Private company limited by shares | Live |
| PROTECT SERVICE COMPANY LIMITED | Private company limited by shares | Live |
| Protect Power Systems Limited | | Live |
| PROTECT TECHNOLOGIES LIMITED | Private company limited by shares | Live |
| PROTECT SKY TECHNOLOGY LIMITED | Private company limited by shares | Live |
| PROTECT TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| PROTECT TRADING LIMITED | Private company limited by shares | Live |
| Protect Skin Trading Company Limited | Private company limited by shares | Live |
| CHINA PROTECT CONSUMER INTEREST UNION ASSOCIATION LIMITED | Private company limited by shares | Dissolved |
| WELL PROTECT LIMITED | Private company limited by shares | Dissolved |
| WELL PROTECT (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| Well Protect Hong Kong Limited | Private company limited by shares | Live |
| WISE PROTECT COMPANY LIMITED | Private company limited by shares | Live |
| TAIWAN ZHONGRUN GROUP CROP PROTECT ENGINEERING SHARES CO., LIMITED | Private company limited by shares | Dissolved |
| JAPAN SUYAN PROTECT SKIN (ZHU) HONGKONG LIMITED | Private company limited by shares | Dissolved |
| PROTECTAS SERVICES LIMITED | Private company limited by shares | Live |
| ProtectBox HK Limited | | Live |
| PROTECT-EASY GROUP LIMITED | Private company limited by shares | Dissolved |
| WELL PROTECTED LIMITED | Private company limited by shares | Dissolved |
| PROTECTER LIMITED | Private company limited by shares | Dissolved |
| Protecting Jackie Chan Culture Limited | Private company limited by shares | Live |