| Reason Developments Co., Limited | Private company limited by shares | Live |
| Reason Enterprise Co., Limited | Private company limited by shares | Live |
| REASON INDUSTRY CO., LIMITED | Private company limited by shares | Dissolved |
| Reason Consulting Limited | Private company limited by shares | Live |
| REASON GROUP ENTERPRISES LIMITED | Private company limited by shares | Live |
| REASON (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| Reason Industrial Limited | Private company limited by shares | Live |
| REASON INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| Jamie Reason Limited | Private company limited by shares | Live |
| KEEP REASON LIMITED | Private company limited by shares | Dissolved |
| REASON INVESTMENT GROUP (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| REASON LASTING (HONG KONG) JEWELLERY COMPANY LIMITED | Private company limited by shares | Dissolved |
| LEAD REASON LIMITED | Private company limited by shares | Dissolved |
| LUCKY REASON INVESTMENTS LIMITED | Private company limited by shares | Live |
| Reason Eco Resources Limited | Private company limited by shares | Live |
| REASON STRONG LIMITED | Private company limited by shares | Dissolved |
| Reason Technologies Limited | Private company limited by shares | Live |
| REASON TECHNOLOGY LIMITED | Private company limited by shares | Live |
| REASON WASHING FACTORY LIMITED | Private company limited by shares | Dissolved |
| WELL REASON INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| WHOLE REASON LIMITED | Private company limited by shares | Dissolved |
| REASON ELECTRIC WIRE AND CABLE TRADING LIMITED | Private company limited by shares | Live |
| Reasonable Internet Limited | Private company limited by shares | Live |
| REASONHURST LIMITED | Private company limited by shares | Dissolved |
| Best Reasons Company Limited | Private company limited by shares | Live |
| SUNSARA REASONS LIMITED | Private company limited by shares | Live |
| Reassen International Trading Co., Limited | Private company limited by shares | Live |
| R-EAST INTERNATIONAL LIMITED | Private company limited by shares | Live |
| REAT INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| REAT INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| REATA (HONG KONG) COMPANY LIMITED | Private company limited by shares | Dissolved |
| REATA INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| REAthree Production Limited | | Live |
| Reatiger Limited | | Live |
| Reatix Limited | Private company limited by shares | Live |
| REATON LIMITED | Private company limited by shares | Dissolved |
| REATON LIMITED | Private company limited by shares | Live |
| REATON CONSULTANTS LIMITED | Private company limited by shares | Live |
| REATON (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| REATON INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| REATON PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| REATON TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| REATOP LIMITED | Private company limited by shares | Dissolved |
| HONGKONG REATY NETWORK TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Reau Tech Co., Limited | | Live |
| REAVIN INT'L TRADING LIMITED | Private company limited by shares | Live |
| Reavision Electronics Co., Limited | Private company limited by shares | Live |
| REAWICK ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| REAXT (H.K.) LIMITED | Private company limited by shares | Live |
| Reaying global Co., Limited | Private company limited by shares | Live |
| REAYON SOLAR COMPANY LIMITED | | Live |
| REAYOU COMPANY LIMITED | Private company limited by shares | Live |
| STANDARD REAYOU TECHNOLOGY LIMITED | | Live |
| Reayoung Trading Co., Limited | Private company limited by shares | Live |
| Reayoung (HK) International Trade Co., Limited | | Live |
| Reayu Trading Limited | Private company limited by shares | Live |
| REAYXENOR TECHNOLOGY LIMITED | Private company limited by shares | Live |