| LMK ALTITUDE LIMITED | Private company limited by shares | Live |
| Red Altitude Limited | Private company limited by shares | Live |
| Altitude Limited | Private company limited by shares | Live |
| ALTITUDE JET LIMITED | | Live |
| ALTITUDE and APTITUDE LIMITED | Private company limited by shares | Live |
| ALTITUDE CAPITAL LIMITED | Private company limited by shares | Live |
| ALTITUDE CONSTRUCTION & ENGINEERING LIMITED | | Live |
| Altitude Consulting Limited | Private company limited by shares | Live |
| EDTITIONS ALTITUDE Limited | Private company limited by shares | Live |
| ALTITUDE EDUCATION LIMITED | Private company limited by shares | Live |
| Altitude Entertainment Limited | Private company limited by shares | Live |
| Altitude Group Limited | Private company limited by shares | Live |
| ALTITUDE CONSULTING GROUP LIMITED | Private company limited by shares | Live |
| CHINA HIGH ALTITUDE WIND ENERGY TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| Altitude Holding Limited | Private company limited by shares | Live |
| Altitude Investments Limited | Private company limited by shares | Live |
| ALTITUDE SOFTWARE (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| ALTITUDE TRADING COMPANY LIMITED | Private company limited by shares | Live |
| HK Altitude Trading Limited | | Live |
| Altitude22 Limited | Private company limited by shares | Live |