| Company Name | Type | Status |
|---|---|---|
| QUERCUS COMPANY LIMITED | Private company limited by shares | Dissolved |
| QUERCUS LIMITED | Private company limited by shares | Dissolved |
| QUERCUS LIMITED | Private company limited by shares | Live |
| Quercus Limited | Live | |
| QUERCUS PARTNERS CO., LIMITED | Private company limited by shares | Live |
| Quercus Landscape Limited | Private company limited by shares | Live |
| Quercus Sales Limited | Live |