| TOP HORN COMPANY LIMITED | Private company limited by shares | Live |
| N. HORN LIMITED | Private company limited by shares | Dissolved |
| HORN TOP LIMITED | Private company limited by shares | Live |
| Sun Horn Limited | Private company limited by shares | Live |
| HORN COMPANY LIMITED -THE- | Private company limited by shares | Live |
| NEW HORN LIMITED | Private company limited by shares | Live |
| CAPITAL HORN LIMITED | Private company limited by shares | Live |
| CHASE HORN LIMITED | Private company limited by shares | Dissolved |
| JOYCE HORN COSMETIC LIMITED | Private company limited by shares | Dissolved |
| DRAGON HORN LIMITED | Private company limited by shares | Live |
| EASTERN HORN LIMITED | Private company limited by shares | Dissolved |
| JOYCE HORN FASHION LIMITED | Private company limited by shares | Live |
| FIRST HORN LIMITED | Private company limited by shares | Dissolved |
| HAPPY HORN LIMITED | Private company limited by shares | Live |
| HONEST HORN LIMITED | Private company limited by shares | Dissolved |
| DRAGON HORN INVESTMENT LIMITED | Private company limited by shares | Live |
| GRANT HORN INVESTMENT LIMITED | Private company limited by shares | Live |
| TEAM HORN INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| JOYCE HORN LIMITED | Private company limited by shares | Live |
| JOYCE HORN KNITTING FACTORY LIMITED | Private company limited by shares | Live |
| JOYCE HORN (MERCHANDISE) LIMITED | Private company limited by shares | Live |
| SHINING HORN LIMITED | Private company limited by shares | Dissolved |
| TEAM HORN LIMITED | Private company limited by shares | Dissolved |
| JOYCE HORN TEXTILES LIMITED | Private company limited by shares | Dissolved |
| Horna Limited | | Live |
| HORNABBOT LIMITED | Private company limited by shares | Dissolved |
| HORNBACH Asia Limited | Private company limited by shares | Live |
| HORNBEAM COMPANY LIMITED | Private company limited by shares | Dissolved |
| HORNBERG HK LIMITED | Private company limited by shares | Live |
| HORNBILL COMPANY LIMITED | Private company limited by shares | Dissolved |
| HORNBILL LIMITED | Private company limited by shares | Live |
| HORNBILL FFA LIMITED | | Live |
| HORNBILL CORPORATION LIMITED | Private company limited by shares | Live |
| Alibaba Hornbill Holding Limited | Private company limited by shares | Live |
| HORNBILL HOLDINGS HK PTE LIMITED | Private company limited by shares | Live |
| BLACK HORNBILL (HOLDINGS) COMPANY LIMITED | Private company limited by shares | Live |
| Hornbill Investment Limited | Private company limited by shares | Live |
| Hornbill Privatebanque Limited | Private company limited by shares | Live |
| HORNBILL TELECOMMUNICATIONS LIMITED | Private company limited by shares | Live |
| Hornbird Technology Limited | Private company limited by shares | Live |
| HORNBLENDE LIMITED | Private company limited by shares | Dissolved |
| HORNBLOWER BOSWORTH INC LIMITED | Private company limited by shares | Dissolved |
| LOEB RHOADES, HORNBLOWER HONG KONG LIMITED | Private company limited by shares | Dissolved |
| HORNBY LIMITED | Private company limited by shares | Live |
| HORNBY ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| HornbyChapman Limited | Private company limited by shares | Live |
| HORNCHAT INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| HORNCHURCH LIMITED | Private company limited by shares | Dissolved |
| HORNCHURCH INVESTMENTS COMPANY LIMITED | Private company limited by shares | Dissolved |
| HORNCO LIMITED | Private company limited by shares | Dissolved |
| Hornda (HK) Optics Co., Limited | Private company limited by shares | Live |
| HORNDEAN ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| HORNDER SIGHTSEEING LIMITED | Private company limited by shares | Dissolved |
| HORNDER TRADING LIMITED | Private company limited by shares | Dissolved |
| Horndren Paper Products Industrial Limited | Private company limited by shares | Live |
| HORNDY LIMITED | Private company limited by shares | Dissolved |
| HORNE & ASSOCIATES LIMITED | Private company limited by shares | Live |
| COLVIN & HORNE LIMITED | Private company limited by shares | Live |
| RAINE & HORNE PROJECTS HONG KONG LIMITED | Private company limited by shares | Dissolved |
| COLVIN & HORNE ASSETS MANAGEMENT LIMITED | Private company limited by shares | Live |
| N.C. HORNE AND COMPANY, LIMITED | Private company limited by shares | Dissolved |
| HORNE WOOD (INT'L) CO., LIMITED | Private company limited by shares | Dissolved |
| HORNEASE LIMITED | Private company limited by shares | Dissolved |
| Horned Limited | | Live |
| HKU HORNELL HALL ALUMNI ASSOCIATION LIMITED | Company limited by guarantee | Dissolved |
| HORNELL INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| HORNEMAN CHEMPLAS (FAR EAST) LIMITED | Private company limited by shares | Live |
| HORNEMAN RESOURCES LIMITED | Private company limited by shares | Dissolved |
| HORNER APG ASIA LIMITED | Private company limited by shares | Live |
| HORNER FLOORING (CHINA) COMPANY LIMITED | Private company limited by shares | Dissolved |
| HORNER ELECTRONIC CO., LIMITED | Private company limited by shares | Dissolved |
| Colin Horner Global Limited | | Live |
| Horner International Limited | Private company limited by shares | Live |
| Horner and Roberts Limited | Private company limited by shares | Live |
| HORNET COMPANY LIMITED | Private company limited by shares | Dissolved |
| Hornet Company Limited | Private company limited by shares | Dissolved |
| HORNET HK LIMITED | Private company limited by shares | Live |
| Hornet Limited | Private company limited by shares | Live |
| HORNET ENTERPRISE LIMITED | Private company limited by shares | Live |
| HORNFIELD LIMITED | Private company limited by shares | Dissolved |
| HORNFIELD ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| HORNFIELD HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| HORNFUL INVESTMENT LIMITED | Private company limited by shares | Live |
| HORNFULL DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| HORNFULL INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| JIN HORNG (AGENT) COMPANY LIMITED | Private company limited by shares | Live |
| HORNG CHII INVESTMENT COMPANY LIMITED | Private company limited by shares | Live |
| CHIN TSAE HORNG COMPANY LIMITED | Private company limited by shares | Dissolved |
| BIN HORNG CO., LIMITED | Private company limited by shares | Dissolved |
| JIHN HORNG CO., LIMITED | Private company limited by shares | Dissolved |
| YA HORNG ELECTRONIC COMPANY LIMITED | Private company limited by shares | Dissolved |
| HORNG JAW ENTERPRISES COMPANY LIMITED | Private company limited by shares | Dissolved |
| EAST HORNG INDUSTRIAL CO., LIMITED | Private company limited by shares | Dissolved |
| HORNGCOM TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| HORNGJAAN TRADE CO., LIMITED | Private company limited by shares | Live |
| HORNG-KAO ENTERPRISE (HONG KONG) COMPANY LIMITED | Private company limited by shares | Dissolved |
| HORN-I (ASIA) LIMITED | Private company limited by shares | Live |
| HORNIN ENTERPRISES LIMITED | Private company limited by shares | Live |
| HORNIN INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| HORNING LIMITED | Private company limited by shares | Dissolved |