| YAMADA COMPANY LIMITED | Private company limited by shares | Dissolved |
| YAMADA YA LIMITED | Private company limited by shares | Live |
| AJI YAMADA COMPANY LIMITED | Private company limited by shares | Live |
| YAMADA LIMITED | Private company limited by shares | Live |
| YAMADA AMUSEMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| YAMADA MIN CO., LIMITED | | Live |
| YAMADA COMPONENT LIMITED | Private company limited by shares | Dissolved |
| YAMADA DISPLAY COMPANY LIMITED | Private company limited by shares | Live |
| YAMADA ELECTRICAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| YAMADA GROUP LIMITED | Private company limited by shares | Live |
| YAMADA INVESTMENT LIMITED | Private company limited by shares | Live |
| YAMADA PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| Yamada Research Limited | | Live |
| YAMADA UNITEC COMPANY LIMITED | Private company limited by shares | Live |
| YAMADAKOKI LIMITED | | Live |