| MONOC GROUP LIMITED | Private company limited by shares | Live |
| MONOCA LIMITED | Private company limited by shares | Live |
| MONOCEAN COMPANY LIMITED | Private company limited by shares | Dissolved |
| Monoceros Limited | Private company limited by shares | Live |
| Monocerus Consulting Limited | Private company limited by shares | Live |
| MONOCHAMP COMPANY LIMITED | Private company limited by shares | Live |
| MONOCHROME LIMITED | Private company limited by shares | Dissolved |
| Monochrome Coffee Limited | Private company limited by shares | Live |
| Monochrome Group Hong Kong Limited | Private company limited by shares | Live |
| MONOCLE COMPANY LIMITED | Private company limited by shares | Live |
| MonocleCap Limited | Private company limited by shares | Live |
| MONOCON DEVELOPMENT LIMITED | Private company limited by shares | Live |
| MONOCON ELECTRONICS COMPANY LIMITED | Private company limited by shares | Dissolved |
| MONOCON INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| MONOCON TRADING LIMITED | Private company limited by shares | Dissolved |
| MONOCORD LIMITED | Private company limited by shares | Dissolved |
| MONOCOSMIC LIMITED | Private company limited by shares | Live |
| MONOCOZZI LIMITED | Private company limited by shares | Live |
| MONOCROFT LIMITED | Private company limited by shares | Dissolved |