| HIEARN LIMITED | Private company limited by shares | Dissolved |
| Hi-earns International Limited | | Live |
| Hieason AR Limited | Private company limited by shares | Live |
| HK HIEASY LETTER INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| Hieasy Technology HongKong Co., Limited | Private company limited by shares | Live |
| Hiebike Limited | Private company limited by shares | Live |
| HIECO Group Limited | Private company limited by shares | Live |
| HIEEY (HK) AUTOMOTIVE LAMP CO., LIMITED | Private company limited by shares | Live |
| HIEFCA CO., LIMITED | Private company limited by shares | Live |
| HI-EFFICIENCY TECHNOLOGY (ASIA) LIMITED | Private company limited by shares | Dissolved |
| H.I.E.K. COMPANY LIMITED | Private company limited by shares | Dissolved |
| HIEMERS GROUP LIMITED | Private company limited by shares | Live |
| HIEMERS GROUP LIMITED | | Live |
| KO HIEN COMPANY LIMITED | Private company limited by shares | Dissolved |
| CHUA HIEN HO COMPANY LIMITED | Private company limited by shares | Dissolved |
| HIEN TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| HIEN LEE CONSTRUCTION CO., LIMITED | Private company limited by shares | Live |
| Hien Lee Development Group Limited | | Live |
| Hien Lee Development Holdings Limited | | Live |
| Hien Lee Investment & Development Limited | | Live |
| HIEN LEE ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| HIEN TUNG F.S. ENGINEERING LIMITED | Private company limited by shares | Live |
| Hien Lee Investment (HK) Company Limited | | Live |
| CONG TY TNHH HIEN HUNG CO., LIMITED | Private company limited by shares | Live |
| Hien Lee Interior Contracting Co., Limited | Private company limited by shares | Live |
| Hien go PR International (HongKong) Co., Limited | Private company limited by shares | Live |
| HIEN INTERNATIONAL (HONGKONG) LIMITED | Private company limited by shares | Live |
| HI-EN LED LIGHTING LIMITED | Private company limited by shares | Dissolved |
| KAY HIEN NOMINEES LIMITED | Private company limited by shares | Dissolved |
| HIEN LEE REAL ESTATE DEVELOPMENT CO., LIMITED | Private company limited by shares | Live |
| HIEN TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| YOENG NAM HIEN & COMPANY, LIMITED | Private company limited by shares | Dissolved |
| YOENG NAM HIEN & COMPANY LIMITED | Private company limited by shares | Dissolved |
| HIENAN LIMITED | Private company limited by shares | Dissolved |
| HIENDTOWER LIMITED | Private company limited by shares | Live |
| Hiepshing Company Limited | Private company limited by shares | Live |
| HIERARCHY COMPUTER TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| HIERARCHY HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| HIERARCHY DESIGN STUDIO LIMITED | Private company limited by shares | Live |
| HIERAX COMPANY LIMITED | Private company limited by shares | Dissolved |
| HIERN INVESTMENTS LIMITED | Public company limited by shares | Dissolved |
| HIERO COMPANY LIMITED | Private company limited by shares | Live |
| HIEROPHANT LIMITED | | Live |
| HIEROPHANT.FEI TRADING LIMITED | Private company limited by shares | Live |
| Chinese Iching Hierophants Association Limited | Private company limited by shares | Live |
| HIEROPHAT CORPORATION LIMITED | Private company limited by shares | Dissolved |
| HIEROPHAT MUSIC LIMITED | Private company limited by shares | Dissolved |
| HIEROPHAT PRODUCTION LIMITED | Private company limited by shares | Dissolved |
| HIERQ ENTERPRISES LIMITED | Private company limited by shares | Live |
| HIERSTAR LIMITED | Private company limited by shares | Live |
| HIERTECH HK LIMITED | | Live |
| HIEW SANG ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| HIEYES CORPORATION LIMITED | Private company limited by shares | Dissolved |