| H.Y.B. TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| HYBABA CO., LIMITED | Private company limited by shares | Live |
| HYBAL LIMITED | Private company limited by shares | Dissolved |
| Hyber Investment Co. Limited | Private company limited by shares | Live |
| Hyberlink Limited | | Live |
| Hybern Energy Hong Kong Limited | | Live |
| HYBERNIA INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| HONG KONG HYBEROCK TRADING LIMITED | Private company limited by shares | Live |
| HYBERPACK PRODUCTIONS LIMITED | Private company limited by shares | Live |
| HYBERTECH ENTERPRISE (HONG KONG) LIMITED | Private company limited by shares | Live |
| HYBERTONE TECH LIMITED | Private company limited by shares | Live |
| HYBERTONE TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| HYBEST INTERNATIONAL GROUP (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| HYBIRDFASHION LIMITED | Private company limited by shares | Live |
| Hyblo Limited | | Live |
| HYBO MARINE ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| Hybo Network Technology Co., Limited | | Live |
| HONGKONG HYBO PETROLEUM DEVELOPMENT CO., LIMITED | Private company limited by shares | Live |
| HYBO INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| Hybo Servicing Limited | Private company limited by shares | Live |
| HYBO SHIPPING LIMITED | Private company limited by shares | Live |
| HYBO TECHNOLOGIES LIMITED | Private company limited by shares | Dissolved |
| HYBONIA LIMITED | Private company limited by shares | Live |
| HYBORE (CHINA) LIMITED | Private company limited by shares | Live |
| HYBORE MARINE (CHINA) LIMITED | Private company limited by shares | Live |
| Hybotic Limited | Private company limited by shares | Live |
| HYBRIBIO LIMITED | Private company limited by shares | Live |
| HYBRIBIO GRACELAND BIOTECHNOLOGY CO LIMITED | Private company limited by shares | Live |
| Hong Kong Hybribio Limited | Private company limited by shares | Live |
| HYBRID LIMITED | Private company limited by shares | Live |
| HYBRID PTY LIMITED | Private company limited by shares | Live |
| PS HYBRID LIMITED | Private company limited by shares | Live |
| Hybrid Enterprise Limited | Private company limited by shares | Live |
| Hybrid Entertainment Company Limited | Private company limited by shares | Dissolved |
| Hybrid Fitness Limited | Private company limited by shares | Live |
| GREEN HYBRID CO., LIMITED | Private company limited by shares | Live |
| Hybrid Innovation Limited | Private company limited by shares | Live |
| HYBRID INVESTMENTS LIMITED | | Live |
| HYBRID LEARNING OCEAN LIMITED | | Live |
| KAM HYBRID POWER LIMITED | Private company limited by shares | Live |
| HYBRID RESEARCH COMPANY LIMITED | Private company limited by shares | Live |
| Hybrid Rider Asia Limited | Private company limited by shares | Live |
| WINDSOR HYBRID LIMITED | | Live |
| HybridBlock Limited | Private company limited by shares | Live |
| Hybrid-D Investment Company Limited | Private company limited by shares | Dissolved |
| HYBRIDEO LIMITED | Private company limited by shares | Dissolved |
| Hybridex Global Limited | Private company limited by shares | Live |
| HybridLab Limited | Private company limited by shares | Live |
| HybridRice Innovation Limited | | Live |
| HybridSec Limited | Private company limited by shares | Live |
| Hybridserver Limited | Private company limited by shares | Live |
| HybridTech Limited | Private company limited by shares | Live |
| HYBRINET LIMITED | Private company limited by shares | Live |
| THE HYBRIS COMPANY LIMITED | | Live |
| HYBRO INTERNATIONAL (H.K.) LIMITED | Private company limited by shares | Dissolved |
| HYBRON HOLDING LIMITED | Private company limited by shares | Live |
| HYBT PTE LIMITED | Private company limited by shares | Live |
| HYBY LIMITED | Private company limited by shares | Live |