| HARM INTERNATIONAL FITNESS COACH TRAINING ASSOCIATION CO., LIMITED | Private company limited by shares | Live |
| Harm Kin Industrial Limited | Private company limited by shares | Live |
| HONGKONG NATURAL FREE FROM PUBLIC HARM FERTILIZER LIMITED | Private company limited by shares | Dissolved |
| HARMAN LIMITED | Private company limited by shares | Dissolved |
| HARMAN LIMITED | Private company limited by shares | Live |
| HARMAN MARITIME AGENCIES (H.K.) LIMITED | Private company limited by shares | Dissolved |
| HARMAN CHINA LIMITED | Private company limited by shares | Dissolved |
| Harman Trade Co., Limited | Private company limited by shares | Live |
| HARMAN INTERNATIONAL SOUTH EAST ASIA LIMITED | Private company limited by shares | Dissolved |
| HARMAN ELECTRONICS CO., LIMITED | Private company limited by shares | Live Commenced dormancy on 26-Jan-2010 |
| Harman Global Limited | Private company limited by shares | Live |
| Harman Group Limited | | Live |
| Harman Furnishing International Group Limited | | Live |
| USA HARMAN INT'L GROUP COMPANY LIMITED | Private company limited by shares | Live |
| HARMAN HALL LIMITED | Private company limited by shares | Dissolved |
| HANDY & HARMAN (H.K.) LIMITED | Private company limited by shares | Live Commenced dormancy on 30-Nov-2015 |
| HANDY & HARMAN RESOURCES LIMITED | Private company limited by shares | Live |
| HARMAN HOLDING LIMITED | Private company limited by shares | Live |
| HARMAN (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| HARMAN INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| Harman Products Limited | Private company limited by shares | Live |
| Harman Recruitment Limited | Private company limited by shares | Live |
| Harman Search Company Limited | Private company limited by shares | Live |
| HARMAN TAADA COMPANY (H.K.) LIMITED | Private company limited by shares | Live |
| Harman Technology Company Limited | Private company limited by shares | Live |
| HARMANWELL TECH CO., LIMITED | Private company limited by shares | Live |
| HARMAR ESTATE LIMITED | Private company limited by shares | Dissolved |
| HARMARCO COMPANY LIMITED | Private company limited by shares | Live |
| HARMAX LIMITED | Private company limited by shares | Dissolved |
| HARMAX LIMITED | Private company limited by shares | Live |
| HARMEN LIMITED | Private company limited by shares | Dissolved |
| HARMER EQUIPMENT LIMITED | Private company limited by shares | Dissolved |
| Harmerti Technology Limited | | Live |
| HONGKONG HARMES CO., LIMITED | | Live |
| HARMIN LIMITED | Private company limited by shares | Live |
| HARMINTERNORG LIMITED | Private company limited by shares | Dissolved |
| HARMIX LIMITED | Private company limited by shares | Dissolved |
| HARMLESS COMPANY (H.K.) LIMITED -THE- | Private company limited by shares | Live |
| Mostly Harmless Limited | | Live |
| HONG KONG HARMOCELL BIOTECH LIMITED | | Live |
| HONG KONG HARMOCELL BUSINESS MANAGEMENT LIMITED | | Live |
| Harmolands Capital Limited | | Live |
| Harmolands Holding Limited | | Live |
| HARMON LIMITED | Private company limited by shares | Dissolved |
| HARMON LIMITED | Private company limited by shares | Live |
| SHENZHEN HARMON TECHNOLOGY LIMITED | Private company limited by shares | Live |
| HARMOND LIMITED | Private company limited by shares | Dissolved |
| HARMOND ESTATES LIMITED | Private company limited by shares | Dissolved |
| HARMOND HOLDINGS (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| HARMOND INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| HARMOND TRADE INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| HARMONDSWORTH COMPANY LIMITED | Private company limited by shares | Dissolved |
| HARMONEVERGREEN SERVICE ASSOCIATION LIMITED | Company limited by guarantee | Live |
| HARMONEY LIMITED | Private company limited by shares | Live |
| Harmong Well Company Limited | Private company limited by shares | Live |
| HARMONGAINS GOLD LIMITED | Private company limited by shares | Dissolved |
| HARMONGAINS HOLDING LIMITED | Private company limited by shares | Dissolved |
| HARMONGAINS INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| Harmoni Limited | Private company limited by shares | Dissolved |
| HARMONI FURNITURE LIMITED | Private company limited by shares | Dissolved |
| Harmonia Limited | Private company limited by shares | Dissolved |
| Harmonia HK Limited | Private company limited by shares | Live |
| New Harmonia Company Limited | | Live |
| HARMONIC LIMITED | Private company limited by shares | Live |
| JJ HARMONIC LIMITED | Private company limited by shares | Live |
| NEW HARMONIC LIMITED | | Live |
| HARMONIC ENTERPRISES LIMITED | Private company limited by shares | Live |
| Harmonic Higgs Limited | Private company limited by shares | Live |
| MEGA HARMONIC ENTERTAINMENT LIMITED | Private company limited by shares | Dissolved |
| HARMONIC PACIFIC COMPANY LIMITED | Private company limited by shares | Live |
| Harmonic Paradise Limited | Private company limited by shares | Live |
| POWER HARMONIC LIMITED | Private company limited by shares | Live |
| HARMONIC SCENE LIMITED | Private company limited by shares | Live |
| HARMONIC OCEAN SHIPPING LIMITED | Private company limited by shares | Live |
| HARMONIC THEATRE COMPANY LIMITED | Company limited by guarantee | Live |
| Harmonic Victory Limited | Private company limited by shares | Live |
| HARMONICA COMPANY LIMITED | Private company limited by shares | Dissolved |
| Harmonica Limited | | Live |
| MUSAPHONE HARMONICA COMPANY LIMITED | Private company limited by shares | Live |
| CHEERUP ROUND HARMONICA COMPANY LIMITED | Private company limited by shares | Dissolved |
| HARMONICE ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| HARMONIE LIMITED | Private company limited by shares | Dissolved |
| GP HARMONIE LIMITED | Private company limited by shares | Dissolved |
| HARMONIE LIMITED | Private company limited by shares | Live |
| ME Harmonie Company Limited | Private company limited by shares | Live |
| HARMONIE LIMITED | | Live |
| Harmonie CPA Limited | | Live |
| HARMONIE ACCESSORIES CO., LIMITED | Private company limited by shares | Live |
| HARMONIE DESIGN LIMITED | Private company limited by shares | Dissolved |
| HARMONIE GROUP LIMITED | Private company limited by shares | Live |
| Harmonie Music HK Limited | | Live |
| HARMONIE HARP MUSIC & ART CENTRE LIMITED | Private company limited by shares | Live |
| HARMONIE TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| Six Harmonies Limited | | Live |
| Harmonigain Trading Co, Limited | Private company limited by shares | Dissolved |
| HARMONIOUS SUN LIMITED | Private company limited by shares | Dissolved |
| HARMONIOUS LIMITED | Private company limited by shares | Live |
| HARMONIOUS SKY LIMITED | Private company limited by shares | Live |
| Harmonious Win Limited | Private company limited by shares | Live |
| CHINA HARMONIOUS LIMITED | Private company limited by shares | Live |