| Fourdesire H.K. Limited | Private company limited by shares | Live |
| FOURDIGIT CO., LIMITED | Private company limited by shares | Dissolved |
| USA FOURDIM BIOTECH LIMITED | Private company limited by shares | Live |
| FourDimensional Limited | | Live |
| China Brain Four-dimensional Education Co., Limited | Private company limited by shares | Live |
| Four-dimensional Culture Technology Co., Limited | | Live |
| FourDimensional International Limited | Private company limited by shares | Live |
| FOSHAN FOUR-DIMENSIONAL SANITARY WARE LIMITED | Private company limited by shares | Dissolved |
| FOUR-DIMENSIONAL STONE INVESTMENTS LIMITED | Private company limited by shares | Live |
| FOURDY LIMITED | Private company limited by shares | Live |