| MATHEMATICS LIMITED | Private company limited by shares | Live |
| A.I Mathematics Limited | Private company limited by shares | Live |
| ES Mathematics Limited | Private company limited by shares | Live |
| Mr Mathematics Limited | Private company limited by shares | Live |
| Business Mathematics Limited | Private company limited by shares | Live |
| CHINA MATHEMATICS ASSOCIATION LIMITED | Private company limited by shares | Live |
| Craftsman Mathematics Limited | | Live |
| Mathematics Education Limited | Private company limited by shares | Live |
| To Jai Mathematics Education Limited | | Live |
| HIGHER MATHEMATICS EDUCATION COMPANY LIMITED | Private company limited by shares | Dissolved |
| CHINA MATHEMATICS EDUCATIONAL TECHNIQUE ASSOCIATION LIMITED | Private company limited by shares | Live |
| Interactive Mathematics Foundation Limited | Private company limited by shares | Live |
| Hong Kong Dongqi Mathematics Co., Limited | | Live |
| HONG KONG GIFTED MATHEMATICS ASSOCIATION LIMITED | Private company limited by shares | Live |
| Mobius Mathematics Limited | Private company limited by shares | Live |
| HON LAM MATHEMATICS & MUSIC STUDIO LIMITED | Private company limited by shares | Live |
| Peking University Mathematics Foundation Limited | Company limited by guarantee | Live |
| Pure Mathematics Olympiad Company Limited | Private company limited by shares | Live |
| Shengang Zhongke Mathematics Research Association Company Limited | Private company limited by shares | Live |
| HK MATHEMATICS OLYMPICS SCHOOL LIMITED | Private company limited by shares | Dissolved |