| Black-M Machinery (China) Limited | Private company limited by shares | Live |
| Blackmagic Design H.K. Limited | Private company limited by shares | Live |
| BlackMarble Capital Limited | Private company limited by shares | Live |
| BlackMarble Asset Management Limited | Private company limited by shares | Live |
| Black.Mask Limited | Private company limited by shares | Live |
| BLACKMINE (HK) LIMITED | Private company limited by shares | Live |
| Blackmine (HK) Limited | Private company limited by shares | Live |
| Blackmo Company Limited | Private company limited by shares | Live |
| BLACKMOON LIMITED | Private company limited by shares | Live |
| E. W. BLACKMORE, LTD. | Private company limited by shares | Dissolved |
| BLACKMORE COMPANY LIMITED | Private company limited by shares | Dissolved |