| PROFESSIONAL MEMORY EDUCATION LIMITED | Private company limited by shares | Live |
| Plug-In Professional Education Limited | Private company limited by shares | Dissolved |
| Professional Education Publishing Limited | Private company limited by shares | Live |
| WISE PROFESSIONAL EDUCATION LIMITED | Private company limited by shares | Live |
| EdUHK School of Continuing and Professional Education Limited -The- | Company limited by guarantee | Live |
| Professional EduTour Association Limited | Private company limited by shares | Live |
| Professional E-Group Limited | Private company limited by shares | Live |
| EIGHTEEN BEAUTY PROFESSIONAL PRODUCTS LIMITED | Private company limited by shares | Live |
| PROFESSIONAL ELECTRONIC LIMITED | Private company limited by shares | Dissolved |
| PROFESSIONAL ELECTRONIC LIMITED | Private company limited by shares | Live |
| ELECTRONIC PROFESSIONAL CORPORATION LIMITED | Private company limited by shares | Live |
| PROFESSIONAL ELECTRONICS LIMITED | Private company limited by shares | Live |
| TRI PROFESSIONAL ELECTRONICS CO., LIMITED | Private company limited by shares | Live |
| PROFESSIONAL ELECTRONICS MANUFACTURING SOLUTIONS LIMITED | Private company limited by shares | Live |
| PROFESSIONAL ELECTRONICS TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| PROFESSIONAL ELEMENT LIMITED | Private company limited by shares | Live |
| ELITE PROFESSIONAL LIMITED | Private company limited by shares | Live |
| Elite Professional Advisory Limited | Private company limited by shares | Live |
| EMERGINGTECH PROFESSIONAL SOLUTION LIMITED | Private company limited by shares | Dissolved |
| EMINENT PROFESSIONAL ENGINEERS LIMITED | Private company limited by shares | Dissolved |
| Emmaus Professional Therapy Limited | | Live |
| EMPIRE PROFESSIONAL MOTORS WORKSHOP LIMITED | Private company limited by shares | Dissolved |
| YAN YAN PROFESSIONAL EMPLOYMENT CENTRE LIMITED | Private company limited by shares | Dissolved |
| PROFESSIONAL ENGINEERING LIMITED | Private company limited by shares | Live |
| HIP LEE PROFESSIONAL ENGINEERING LIMITED | Private company limited by shares | Live |
| HOI TAT PROFESSIONAL ENGINEERING LIMITED | Private company limited by shares | Live |
| WAN MEI PROFESSIONAL ENGINEERING LIMITED | Private company limited by shares | Live |
| WAI YIU PROFESSIONAL ENGINEERING LIMITED | Private company limited by shares | Live |
| H&K Professional Engineering Limited | Private company limited by shares | Live |
| PROFESSIONAL ENGINEERING LIMITED | | Live |
| PROFESSIONAL ACOUSTICS ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| CHINA PROFESSIONAL AUDIO ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| Professional Automation Engineering Limited | Private company limited by shares | Live |
| WING FAT PROFESSIONAL ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| PROFESSIONAL CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| Professional Construction Engineering Limited | Private company limited by shares | Dissolved |
| PROFESSIONAL CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| HANG WO PROFESSIONAL CONSTRUCTION ENGINEERING LIMITED | Private company limited by shares | Live |
| HK Construction Professional Waterproof Engineering Limited | Private company limited by shares | Live |
| PROFESSIONAL ENGINEERING CONSULTANCY LIMITED | Private company limited by shares | Live |
| PROFESSIONAL ENGINEERING AND CONSULTANT LIMITED | Private company limited by shares | Live |
| PROFESSIONAL DEVELOP ENGINEERING LIMITED | Private company limited by shares | Live |
| Professional Drill & Cut Engineering Limited | Private company limited by shares | Live |
| Professional Electrical Engineering Company Limited | Private company limited by shares | Live |
| HO TIN PROFESSIONAL ELECTRICAL & AIR-CONDITION ENGINEERING LIMITED | | Live |
| ELITE PROFESSIONAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| Professional Environmental Engineering Limited | Private company limited by shares | Live |
| Wise & Farsighted Professional Engineering Limited | Private company limited by shares | Live |
| Professional Flooring Engineering Limited | Private company limited by shares | Live |
| GALAXY PROFESSIONAL ENGINEERING CO. LIMITED | Private company limited by shares | Live |
| GRAND PROFESSIONAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| HANG FAT (PROFESSIONAL ENGINEERING) CO., LIMITED | Private company limited by shares | Dissolved |
| TAI LEE HING PROFESSIONAL ENGINEERING LIMITED | Private company limited by shares | Live |
| HOP HING PROFESSIONAL WATERPROOF ENGINEERING LIMITED | Private company limited by shares | Live |
| PROFESSIONAL ENGINEERING (H.K.) LIMITED | Private company limited by shares | Dissolved |
| PROFESSIONAL (H.K.) ENGINEERING LIMITED | Private company limited by shares | Live |
| PROFESSIONAL ENGINEERING INTERNATIONAL (H.K.) LIMITED | Private company limited by shares | Dissolved |
| PROFESSIONAL ENGINEERING (HONG KONG) COMPANY LIMITED | Private company limited by shares | Live |
| Joyful Professional Engineering Company Limited | | Live |
| UNICORN PROFESSIONAL ENGINEERING HONG KONG LIMITED | Private company limited by shares | Live |
| Legacy Professional & Engineering Company Limited | Private company limited by shares | Live |
| PROFESSIONAL METAL AND GLASS ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| Professional Outdoor Furniture Engineering Limited | Private company limited by shares | Live |
| POWER PROFESSIONAL ENGINEERING LIMITED | Private company limited by shares | Live |
| PROFESSIONAL ENGINEERING PROJECTS LIMITED | Private company limited by shares | Live |
| Professional Repair Engineering Limited | Private company limited by shares | Live |
| Professional Safety Engineering Company Limited | Private company limited by shares | Live |
| PROFESSIONAL SCAFFOLDING ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| Professional System Engineering Limited | Private company limited by shares | Live |
| PROFESSIONAL TEAM ENGINEERING LIMITED | Private company limited by shares | Live |
| HI TECH PROFESSIONAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| Professional Software Engineering & Advanced Technologies Limited | Private company limited by shares | Live |
| TOPGLORY PROFESSIONAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| TAO WON PROFESSIONAL TREATMENT & ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| PROFESSIONAL WATERPROOFING ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| Professional Welding Engineering Limited | Private company limited by shares | Live |
| WINTEX PROFESSIONAL ENGINEERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| WINTEX PROFESSIONAL ENGINEERING LIMITED | | Live |
| CANADIAN WOOD FLOORING PROFESSIONAL ENGINEERING CO. LIMITED | Private company limited by shares | Dissolved |
| PROFESSIONAL ENGINEERINGS LIMITED | Private company limited by shares | Dissolved |
| Professional English and Contract Engineers Limited | Private company limited by shares | Live |
| ENTAR PROFESSIONAL LIMITED | Private company limited by shares | Live |
| PROFESSIONAL ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| NEW PROFESSIONAL ENTERPRISE LIMITED | Private company limited by shares | Live |
| PROFESSIONAL RESOURCES CENTRE (SOCIAL ENTERPRISES) LIMITED | Company limited by guarantee | Live |
| ENVIROSAFE PROFESSIONAL CONSULTANCY LIMITED | Private company limited by shares | Live |
| Epic Professional English Limited | Private company limited by shares | Live |
| PROFESSIONAL AV EQUIPMENT LIMITED | Private company limited by shares | Dissolved |
| PROFESSIONAL IN EQUIPMENT LIMITED | Private company limited by shares | Live |
| E-STAR PROFESSIONAL GROUP LIMITED | Private company limited by shares | Live |
| ET.Selth Professional Limited | Private company limited by shares | Live |
| EUROCONTEC PROFESSIONAL (HK) LIMITED | Private company limited by shares | Live |
| Ever Professional International Limited | | Live |
| PROFESSIONAL MOCK EXAMINATIONS ASSOCIATION LIMITED | | Live |
| PROFESSIONAL EXCEL CONSULTANTS LIMITED | Private company limited by shares | Live |
| PROFESSIONAL EXCHANGE COMPANY LIMITED | Private company limited by shares | Live |
| EXDAN PROFESSIONAL DANCEWEAR CO. LIMITED | Private company limited by shares | Dissolved |
| CHINA PROFESSIONAL EXECUTIVE SECRETARIES ASSOCIATION LIMITED | Company limited by guarantee | Live |
| PROFESSIONAL EXPERT LIMITED | Private company limited by shares | Live |
| PROFESSIONAL EXPERT INTERNATIONAL LIMITED | Private company limited by shares | Live |