| Company Name | Type | Status |
|---|---|---|
| Kuroi Limited | Private company limited by shares | Live |
| KUROI CO., LIMITED | Private company limited by shares | Dissolved |
| KUROISHI IMPORT AND EXPORT TRADING CO., LIMITED | Private company limited by shares | Live |
| KUROIWA DESIGN HONG KONG LIMITED | Private company limited by shares | Dissolved |
| KUROIWA HONGKONG LIMITED | Private company limited by shares | Dissolved |
| KUROIWA RAMEN LIMITED | Private company limited by shares | Live |