| HORIZON RUN LIMITED | | Live |
| HORIZON JET LIMITED | | Live |
| Sky Horizon Company Limited | | Live |
| TEG HORIZON LIMITED | | Live |
| FLS Horizon Limited | | Live |
| Red Sea Horizon Limited | | Live |
| ACME HORIZON LIMITED | Private company limited by shares | Live |
| Ample Horizon Limited | Private company limited by shares | Live |
| ASIA HORIZON LIMITED | Private company limited by shares | Dissolved |
| ASIA HORIZON LIMITED | Private company limited by shares | Dissolved |
| NEW ASIA HORIZON LIMITED | Private company limited by shares | Live |
| ASIA HORIZON LIMITED | Private company limited by shares | Live |
| Asia Horizon HK Limited | Private company limited by shares | Live |
| ASIA HORIZON HOLDING LIMITED | Private company limited by shares | Live |
| ASTUTE HORIZON LIMITED | Private company limited by shares | Live |
| Athena Horizon Limited | Private company limited by shares | Live |
| BEAUTY HORIZON LIMITED | Private company limited by shares | Live |
| BEST HORIZON LIMITED | Private company limited by shares | Live |
| HORIZON CAPITAL LIMITED | Private company limited by shares | Live |
| CAPITAL HORIZON LIMITED | Private company limited by shares | Dissolved |
| CAPITAL HORIZON LIMITED | Private company limited by shares | Live |
| NEW HORIZON CAPITAL LIMITED | Private company limited by shares | Live |
| HORIZON CENTURY LIMITED | Private company limited by shares | Live |
| CENTURY HORIZON LIMITED | Private company limited by shares | Live |
| CHINESE HORIZON LIMITED | Private company limited by shares | Dissolved |
| CLOUD HORIZON INVESTMENTS LIMITED | Private company limited by shares | Live |
| HORIZON COAST LIMITED | Private company limited by shares | Live |
| COLORFUL HORIZON LIMITED | Private company limited by shares | Live |
| CONCORD HORIZON LIMITED | Private company limited by shares | Dissolved |
| CREATIVE HORIZON LIMITED | Private company limited by shares | Live |
| HORIZON CREATIVE LIMITED | Private company limited by shares | Dissolved |
| Horizon Creative Limited | Private company limited by shares | Live |
| DEFINE HORIZON LIMITED | Private company limited by shares | Live |
| Delta Horizon Limited | Private company limited by shares | Live |
| DIGITAL HORIZON LIMITED | Private company limited by shares | Dissolved |
| DRAGON HORIZON LIMITED | Private company limited by shares | Live |
| Eastern Horizon Limited | Private company limited by shares | Live |
| HORIZON ENTERPRISE LIMITED | Private company limited by shares | Live |
| HORIZON 360 ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| NEW HORIZON ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| HORIZON ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| WIN HORIZON ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| Horizon Enterprises Limited | Private company limited by shares | Live |
| New Horizon Enterprises Limited | Private company limited by shares | Live |
| ESTATE HORIZON LIMITED | Private company limited by shares | Live |
| FIRST HORIZON LIMITED | Private company limited by shares | Live |
| HORIZON FURNITURE COMPANY LIMITED | Private company limited by shares | Live |
| GIFT HORIZON LIMITED | Private company limited by shares | Live |
| Glorious Horizon Limited | Private company limited by shares | Live |
| Horizon Glow Limited | Private company limited by shares | Live |
| GOLD HORIZON LIMITED | Private company limited by shares | Dissolved |
| GOLD HORIZON LIMITED | Private company limited by shares | Live |
| GOLD HORIZON ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| GOLD HORIZON ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| GOLD HORIZON INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| GOLD HORIZON INVESTMENTS LIMITED | Private company limited by shares | Live |
| GRAND HORIZON LIMITED | Private company limited by shares | Live |
| GRANT HORIZON LIMITED | Private company limited by shares | Live |
| HAPPY HORIZON LIMITED | Private company limited by shares | Live |
| Harbour Horizon Limited | Private company limited by shares | Live |
| Horizon Healthcare Limited | | Live |
| HORIZON HOLIDAYS LIMITED | Private company limited by shares | Live |
| Horizon Hybrid Venture Capital Investment (HK) Limited | Private company limited by shares | Live |
| Horizon Innovation Limited | | Live |
| Horizon Innovations Limited | Private company limited by shares | Live |
| Horizon Innovations Limited | Private company limited by shares | Live |
| LEARNING HORIZON LIMITED | Private company limited by shares | Dissolved |
| Horizon Levelling Company Limited | Private company limited by shares | Live |
| LIQUID HORIZON LIMITED | Private company limited by shares | Dissolved |
| Lost Horizon Limited | Private company limited by shares | Live |
| Horizon Manpower Limited | | Live |
| HORIZON MARK LIMITED | Private company limited by shares | Live |
| METRO HORIZON LIMITED | Private company limited by shares | Live |
| Horizon Moon Limited | Private company limited by shares | Live |
| NATION HORIZON LIMITED | Private company limited by shares | Live |
| NATION HORIZON LIMITED | Private company limited by shares | Live |
| NEXT HORIZON COMPANY LIMITED | Private company limited by shares | Live |
| Next Horizon HK Limited | Private company limited by shares | Live |
| NORTHERN HORIZON LIMITED | Private company limited by shares | Dissolved |
| Nova Horizon Limited | | Live |
| OCEAN HORIZON LIMITED | Private company limited by shares | Dissolved |
| Ocean Horizon Limited | Private company limited by shares | Live |
| PACIFIC HORIZON LIMITED | Private company limited by shares | Dissolved |
| PACIFIC HORIZON LIMITED | Private company limited by shares | Live |
| Pacific Bay Horizon Limited | Private company limited by shares | Live |
| PHOENIX HORIZON LIMITED | Private company limited by shares | Dissolved |
| Horizon Point Limited | Private company limited by shares | Live |
| POWER HORIZON INVESTMENTS LIMITED | Private company limited by shares | Live |
| RESEARCH HORIZON LIMITED | Private company limited by shares | Dissolved |
| RICH HORIZON LIMITED | Private company limited by shares | Live |
| RICH HORIZON LIMITED | | Live |
| RICH HORIZON INVESTMENTS LIMITED | Private company limited by shares | Live |
| RICH HORIZON (SSP) LIMITED | Private company limited by shares | Live |
| SMART HORIZON LIMITED | Private company limited by shares | Live |
| Smart Horizon Holding Limited | Private company limited by shares | Live |
| SOUTH HORIZON LIMITED | Private company limited by shares | Live |
| SOUTH HORIZON INC LIMITED | Private company limited by shares | Live |
| SOUTH HORIZON ENTERPRISES LIMITED | Private company limited by shares | Live |
| SOUTH HORIZON INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| HORIZON STAGE LIMITED | Private company limited by shares | Live |