| MASTERY LIMITED | Private company limited by shares | Live |
| TOP MASTERY LIMITED | Private company limited by shares | Dissolved |
| MD MASTERY LIMITED | Private company limited by shares | Live |
| Tai Xia Mastery Limited | | Live |
| ACADEMY OF IMAGE MASTERY (GREATER CHINA) LIMITED | Private company limited by shares | Live |
| ALPHA MASTERY LIMITED | Private company limited by shares | Live |
| MASTERY APPAREL LIMITED | Private company limited by shares | Live |
| MASTERY ASIA LIMITED | Private company limited by shares | Dissolved |
| Mastery Asia Limited | Private company limited by shares | Live |
| MASTERY FLOWERS AND BAGS INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| Mastery Education Centre (Kowloon Bay) Limited | Private company limited by shares | Live |
| BRIGHTEN MASTERY LIMITED | Private company limited by shares | Dissolved |
| MASTERY CAPITAL LIMITED | Private company limited by shares | Dissolved |
| Mastery Education (Chi Lok) Limited | Private company limited by shares | Live |
| best mastery capital co., Limited | Private company limited by shares | Live |
| MASTERY COMMERCIAL CO., LIMITED | Private company limited by shares | Live |
| Mastery High-Tech (Hong Kong) Co., Limited | Private company limited by shares | Live |
| HONG KONG MASTERY TRADING CO., LIMITED | Private company limited by shares | Live |
| Mastery Innovations Co., Limited | | Live |
| MASTERY JEWELLERY CO., LIMITED | Private company limited by shares | Live |
| MASTERY COMPUTER LIMITED | Private company limited by shares | Dissolved |
| MASTERY CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| MASTERY CONSULTANTS (ASIA) CO. LIMITED | Private company limited by shares | Dissolved |
| MASTERY CORPORATE LIMITED | Private company limited by shares | Live |
| YIHAI MASTERY CULTURE AND ART LIMITED | Private company limited by shares | Live |
| MASTERY DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| Mastery Development Consulting Co., Limited | | Live |
| Glow Mastery Development Limited | Private company limited by shares | Live |
| MASTERY SOFTWARE DEVELOPMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| LOG IN MASTERY EDUCATION LIMITED | Private company limited by shares | Live |
| MASTERY EDUCATION CENTRE LIMITED | Private company limited by shares | Live Commenced dormancy on 02-Mar-2016 |
| MASTERY GALAXY EDUCATION LIMITED | Private company limited by shares | Live |
| Mastery Glory Education Limited | Private company limited by shares | Live |
| Mastery Education Group Limited | Private company limited by shares | Live |
| Mastery Education Centre (Marble 33) Limited | | Live |
| Mastery Education (North Point) Limited | Private company limited by shares | Live |
| Mastery Education (Quarry Bay) Limited | Private company limited by shares | Live |
| Mastery Education (San Po Kong) Limited | Private company limited by shares | Live |
| CHIN KWAN & MASTERY ELECTRICAL ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| MASTERY ELECTRONICS LIMITED | Private company limited by shares | Live Commenced dormancy on 05-Jul-2013 |
| MASTERY ENGINEERING LIMITED | Private company limited by shares | Live |
| MASTERY ENGINEERING HONG KONG LIMITED | Private company limited by shares | Live |
| MASTERY ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| ESSENTIAL MASTERY ASIA LIMITED | Private company limited by shares | Live |
| FELIX MASTERY CO., LIMITED | Private company limited by shares | Dissolved |
| Freedom Mastery Limited | Private company limited by shares | Live |
| MASTERY GAIN LIMITED | Private company limited by shares | Live |
| MASTERY GARMENT ACCESSORIES LIMITED | Private company limited by shares | Live |
| GOLD MASTERY LIMITED | Private company limited by shares | Dissolved |
| GOLDEN MASTERY LIMITED | Private company limited by shares | Live |
| GOLDEN MASTERY (HOLDINGS) LIMITED | Private company limited by shares | Live |
| GRAND MASTERY LIMITED | Private company limited by shares | Dissolved |
| Mastery Group Limited | Private company limited by shares | Dissolved |
| SHOW DEEP MASTERY (HK) LIMITED | Private company limited by shares | Dissolved |
| Ease Mastery (HK) Investment Limited | Private company limited by shares | Live |
| MASTERY (HK) TECHNOLOGY LIMITED | Private company limited by shares | Live |
| MASTERY HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| Sheng Mastery (Hong Kong) Co., Limited | Private company limited by shares | Dissolved |
| Mastery Tech (Hong Kong) Limited | | Live |
| MASTERY (HONG KONG) TRAVEL LIMITED | Private company limited by shares | Dissolved |
| HONGKONG FORTUNE MASTERY INTERNATIONAL LIMITED | Private company limited by shares | Live |
| HONGKONG MASTERY IMPORT&EXPORT LIMITED | Private company limited by shares | Live |
| MASTERY INDUSTRIAL LIMITED | Private company limited by shares | Live |
| MASTERY INDUSTRIES LIMITED | Private company limited by shares | Dissolved |
| Mastery Information Consulting Development Co., Limited | Private company limited by shares | Live |
| MASTERY INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| TOP MASTERY INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| MASTERY INTERNATIONAL ASSOCIATES LIMITED | Private company limited by shares | Dissolved |
| Mastery International Co., Limited | Private company limited by shares | Live |
| HK MASTERY INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| DESTINATION MASTERY INTERNATIONAL LIMITED | | Live |
| HK GLOBAL MASTERY INTERNATIONAL EXPRESS LIMITED | Private company limited by shares | Live |
| HK GLOBAL MASTERY INTERNATIONAL EXPRESS LIMITED | | Live |
| Mastery Global International Limited | Private company limited by shares | Live |
| MASTERY INTERNATIONAL HOLDINGS LIMITED | Private company limited by shares | Live |
| MASTERY INVESTMENT LIMITED | Private company limited by shares | Live |
| NEW MASTERY INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| KINGSWAY TRAINING MASTERY LIMITED | Private company limited by shares | Dissolved |
| Mastery Labs Limited | Private company limited by shares | Live |
| Mastery Education Centre (Hiu Lai) Limited | Private company limited by shares | Live |
| Mastery In Languages Limited | Private company limited by shares | Live |
| MASTERY (L&C) HK LIMITED | Private company limited by shares | Live |
| LIFE MASTERY LEAGUE LIMITED | Private company limited by shares | Live |
| MASTERY MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| MASTERY MANAGEMENT CONSULTANCY LIMITED | Private company limited by shares | Dissolved |
| Mastery Data Center Investment Management Company Limited | | Live |
| MASTERY MANOR LIMITED | Private company limited by shares | Live |
| MASTERY MANUFACTORY COMPANY LIMITED | Private company limited by shares | Live |
| Mastery Mart Co., Limited | Private company limited by shares | Live |
| MAXLINK MASTERY LIMITED | Private company limited by shares | Live |
| MASTERY CLEANING & MICE KILLER LIMITED | Private company limited by shares | Live |
| Mastery Mould (HK) Industrial Co., Limited | Private company limited by shares | Dissolved |
| MASTERY ORIENT LIMITED | Private company limited by shares | Live |
| MASTERY (NFK) PLASTERING COMPANY LIMITED | Private company limited by shares | Dissolved |
| Mastery Education Centre (Nan Hai Plaza) Limited | Private company limited by shares | Live |
| MASTERY EDUCATION AND TRAINING PROFESSIONALS LIMITED | Private company limited by shares | Live |
| MASTERY PROFITS LIMITED | Private company limited by shares | Live |
| MASTERY QUALITY LIMITED | Private company limited by shares | Live |
| ROSY MASTERY LIMITED | Private company limited by shares | Live |
| Mastery Schools and Services (Hong Kong) Limited | Private company limited by shares | Live |