| HYPERTEXT TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| Hongkong Hyper-Threading Technology Limited | | Live |
| HYPERTRADE LIMITED | Private company limited by shares | Dissolved |
| HyperTrans Limited | | Live |
| HYPERTREE LIMITED | | Live |
| HYPERTRONICES LIMITED | Private company limited by shares | Dissolved |
| HYPERVALU LIMITED | Private company limited by shares | Dissolved |
| HYPERVAST LIMITED | Private company limited by shares | Dissolved |
| AMERICA HYPERVAST DEVELOPMENTS LIMITED | Private company limited by shares | Dissolved |
| HYPERVAST DEVELOPMENTS LIMITED | Private company limited by shares | Dissolved |
| HYPERVAST INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| HyperView Global Limited | Private company limited by shares | Live |
| HYPERVIEW (H.K.) CO., LIMITED | Private company limited by shares | Dissolved |
| CYL HYPERWARE LIMITED | Private company limited by shares | Live |
| Hyperwarp International Trading Co., Limited | Private company limited by shares | Live |
| Hyperway Limited | Private company limited by shares | Live |
| HYPERWEALTH LIMITED | Private company limited by shares | Dissolved |
| HYPERWIZ TECHNOLOGY (HONG KONG) CO., LIMITED | Private company limited by shares | Live |
| HYPERWSN CO., LIMITED | Private company limited by shares | Live |
| HyperX Limited | Private company limited by shares | Live |
| HYPERYON LIMITED | Private company limited by shares | Live |
| Hypesaints Network Limited | | Live |
| Hypetec Limited | Private company limited by shares | Live |
| HYPE-TECH LIMITED | Private company limited by shares | Dissolved |
| HYPEVENOM LIMITED | | Live |
| Hypeworks Limited | | Live |
| HYPEX INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| Hypharma Co., Limited | Private company limited by shares | Live |
| Hyphecan Care Limited | Private company limited by shares | Live |
| Hyphegesis Limited | Private company limited by shares | Live |
| HYPHEN LIMITED | Private company limited by shares | Dissolved |
| HYPHEN ASIA LIMITED | Private company limited by shares | Live |
| HYPHEN CAPITAL LIMITED | Private company limited by shares | Dissolved |
| HYPHEN CHEMICALS LIMITED | Private company limited by shares | Live |
| Hyphen Connect Limited | | Live |
| Hyphen Consulting Limited | Private company limited by shares | Live |
| Hyphen Education HK Limited | Private company limited by shares | Live |
| Hyphen Asia (Hong Kong) Limited | Private company limited by shares | Live |
| Hyphen Networks Limited | Private company limited by shares | Live |
| HYPHEN ASIA TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| Hyphenea HK Limited | Private company limited by shares | Live |
| HYPHENS MARKETING & TECHNICAL SERVICES LIMITED | Private company limited by shares | Dissolved |
| HYPHIL SHIPPING COMPANY LIMITED | Private company limited by shares | Dissolved |
| HYPNOS LIMITED | Private company limited by shares | Dissolved |
| HYPNOS LIMITED | Private company limited by shares | Dissolved |
| HYPNOS LIMITED | | Live |
| CHINA HYPNOSIS RESEARCH ACADEMY LIMITED | Private company limited by shares | Live |
| CHINA HYPNOSIS ASSOCIATION LIMITED | Private company limited by shares | Live |
| CHINA HYPNOSIS ASSOCIATION LIMITED | Private company limited by shares | Live |
| HYPNOSIS TRANSFORMATION PRODUCTION LIMITED | Private company limited by shares | Live |
| China Hypnosis Technology Co., Limited | Private company limited by shares | Live |
| Hypnosis Training Academy Limited | Private company limited by shares | Live |
| HYPNOTEK CO., LIMITED | Private company limited by shares | Live |
| CONTINUING EDUCATION FOR HYPNOTHERAPISTS CO. LIMITED | Private company limited by shares | Live |
| ASIA PRACTICING HYPNOTHERAPISTS ASSOCIATION LIMITED | Private company limited by shares | Live |
| HYPNOTHERAPY ACADEMY LIMITED | | Live |
| HYPNOTHERAPY AND COUNSELING ASSOCIATION OF ASIA LIMITED | Company limited by guarantee | Live |
| Hypnotherapy and Holistic Healing (H.K.) Center Limited | Private company limited by shares | Live |
| Serenity Hypnotherapy and Wellness Clinic Limited | | Live |
| Hong Kong Hypnotherapy Association Limited | Private company limited by shares | Live |
| Hong Kong Hypnotherapy Association Limited | | Live |
| Hong Kong Clinical Hypnotherapy & Psychotherapy Limited | Private company limited by shares | Dissolved |
| Hong Kong Hypnotherapy Limited | | Live |
| HYPNOTHERAPY AND COUNSELING CENTER OF HONG KONG LIMITED | Private company limited by shares | Live |
| HONG KONG SPIRITUAL HYPNOTHERAPY COMPANY LIMITED | | Live |
| Living Strength Tarot & Hypnotherapy Consultancy Limited -The- | Private company limited by shares | Live |
| HYPO PLUS MINING AND RESOURCES LIMITED | Private company limited by shares | Dissolved |
| SHANTOU HYPO SEAFOOD LIMITED | Private company limited by shares | Live |
| HYPO TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| Hypogravity Limited | Private company limited by shares | Live |
| OPS HYPOID LIMITED | Private company limited by shares | Dissolved |
| HYPOL (ASIA) COMPANY LIMITED | Private company limited by shares | Live |
| HYPOTEC LIMITED | Private company limited by shares | Live |
| HYPOTEK COMPANY LIMITED | Private company limited by shares | Dissolved |
| Vincy's Hypotherapy Centre Limited | | Live |
| A HYPOTHESIS LIMITED | Private company limited by shares | Live |
| Hypothesis Limited | | Live |
| Hypothesis & Idea Business Solution Limited | Private company limited by shares | Live |
| JH Hypower HK Limited | Private company limited by shares | Live |
| Hypower (Asia) Limited | Private company limited by shares | Live |
| HYPOWER DEVELOPMENTS LIMITED | Private company limited by shares | Dissolved |
| HYPOWER INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| Hyppy Fun Limited | Private company limited by shares | Live |
| HYPRED LIMITED | Private company limited by shares | Dissolved |
| HY-PRO ASIA LIMITED | Private company limited by shares | Live |
| Hyproto Technology Limited | Private company limited by shares | Live |
| Hypsmall Technology Co., Limited | Private company limited by shares | Live |
| HYPT INDUSTRIAL HOLDING CO., LIMITED | Private company limited by shares | Live |
| SHENZHEN HYPT INDUSTRIAL LIMITED | Private company limited by shares | Live |
| Hypuree Limited | | Live |