| SELF MASTERY ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| Mastery Consultancy Service Co. Limited | | Live |
| MASTERY SERVICES LIMITED | Private company limited by shares | Live |
| MASTERY SHIPPING LIMITED | Private company limited by shares | Live |
| MASTERY STRAIGHT LIMITED | Private company limited by shares | Live |
| MASTERY EDUCATION CENTRE (SUNNINGDALE) LIMITED | Private company limited by shares | Live |
| MASTERY SPEECH AND SWALLOWING CLINIC LIMITED | Private company limited by shares | Live |
| MASTERY TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| MASTERY QUALITY TECHNOLOGY LIMITED | Private company limited by shares | Live |
| MASTERY EDUCATION CENTRE (HO MAN TIN) LIMITED | Private company limited by shares | Live |
| Mastery Toys Limited | | Live |
| MASTERY TRADING LIMITED | Private company limited by shares | Dissolved |
| MASTERY TRAVEL LIMITED | Private company limited by shares | Dissolved |
| Mastery Trust Limited | | Live |
| MASTERY UNION INTERNATIONAL LIMITED | Private company limited by shares | Live |
| MASTERY EDUCATION CENTRE (TO KWA WAN) LIMITED | Private company limited by shares | Live |
| Wealth Mastery Co. Limited | Private company limited by shares | Live |
| WORLD MASTERY LIMITED | Private company limited by shares | Live |
| WORLD MASTERY TECHNOLOGY LIMITED | Private company limited by shares | Live |
| MASTERYEAR LIMITED | Private company limited by shares | Live |
| MASTERYOUTH LIMITED | Private company limited by shares | Dissolved |