| Hanamigawa Laboratory Limited | Private company limited by shares | Live |
| Laboratory of Data Discovery for Health Limited | Company limited by guarantee | Live |
| FZ Public Health Laboratory Company Limited | Private company limited by shares | Live |
| HEEP SUN MEDICAL LABORATORY CO., LIMITED | Private company limited by shares | Dissolved |
| Hercules Laboratory Group Asia Holding Limited | Private company limited by shares | Live |
| CHINA TELECOMMUNICATION (HK) TELECOMMUNICATION SOFTWARE LABORATORY LIMITED | Private company limited by shares | Dissolved |
| CLASSIC LABORATORY (HK) LIMITED | Private company limited by shares | Live |
| Luminence Laboratory (HK) Limited | Private company limited by shares | Dissolved |
| AXE HOMECARE LABORATORY COMPANY LIMITED | Private company limited by shares | Dissolved |
| HONG KONG ALLERGY LABORATORY LIMITED | Private company limited by shares | Dissolved |
| HONG KONG AVALON LABORATORY LIMITED | Private company limited by shares | Dissolved |
| HONG KONG GENESIS LABORATORY CENTRE LIMITED | Private company limited by shares | Live |
| Hong Kong Laboratory Centre Limited | Private company limited by shares | Live |
| HONG KONG MEDICAL LABORATORY CENTRE LIMITED | Private company limited by shares | Live |
| Hong Kong Dental Laboratory (China) Limited | Private company limited by shares | Live |
| Hong Kong Android Laboratory Co., Limited | | Live |
| LSS LABORATORY HONG KONG CO., LIMITED | Private company limited by shares | Live |
| Hong Kong Laboratory Co., Limited | Private company limited by shares | Live |
| Hong Kong Mayo laboratory Co., Limited | | Live |
| HONG KONG CYTOPATHOLOGY LABORATORY LIMITED | Private company limited by shares | Dissolved |
| Hong Kong AI & Data Laboratory Limited | Private company limited by shares | Live |
| HONG KONG DENTAL LABORATORY LIMITED | Private company limited by shares | Live |
| Hong Kong DiagCor Laboratory Limited | Private company limited by shares | Live |
| Hong Kong Royal Diagnostic Laboratory Limited | Private company limited by shares | Live |
| HONG KONG ACCREDITED DIAMOND LABORATORY LIMITED | Private company limited by shares | Live |
| DIAMOND FEDERATION OF HONG KONG LABORATORY LIMITED | Private company limited by shares | Live |
| HONG KONG DIGITEK LABORATORY LIMITED | Private company limited by shares | Dissolved |
| HONG KONG GUANGYANG LABORATORY ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| Hong Kong First Medical Laboratory Limited | | Live |
| HONG KONG STR GENE LABORATORY LIMITED | Private company limited by shares | Live |
| Hong Kong Global Dental Laboratory Limited | Private company limited by shares | Live |
| HONG KONG HEEP WO LABORATORY LIMITED | Private company limited by shares | Live |
| HONG KONG PRECISION INJECTION LABORATORY LIMITED -THE- | Private company limited by shares | Live |
| Hong Kong Laboratory Instrument Limited | | Live |
| HONG KONG JEWELRY LABORATORY COMPANY LIMITED | Private company limited by shares | Live |
| HONG KONG LABORATORY LIMITED -THE- | Private company limited by shares | Dissolved |
| GIA Hong Kong Laboratory Limited | Private company limited by shares | Live |
| HONG KONG DNA LABORATORY LIMITED | Private company limited by shares | Live |
| 01 COMMUNIQUE LABORATORY HONG KONG LIMITED | Private company limited by shares | Live |
| LUMINSONIC LABORATORY (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| HONG KONG MEDTIMES MEDICAL LABORATORY LIMITED | Private company limited by shares | Live |
| Hong Kong Biomedical Metacare Laboratory Limited | | Live |
| Hong Kong Molecular Bioscience Laboratory Limited | Private company limited by shares | Live |
| HONG KONG LABORATORY NETWORK LIMITED | Private company limited by shares | Dissolved |
| HONG KONG NON-INVASIVE PULMONARY LABORATORY LIMITED | Private company limited by shares | Dissolved |
| HONG KONG ROAD RESEARCH LABORATORY LIMITED | Private company limited by shares | Live |
| HONG KONG ROYAL LABORATORY LIMITED | Private company limited by shares | Live |
| Hong Kong DNA Tech Laboratory Limited | Private company limited by shares | Live |
| Hong Kong United Laboratory Co., Limited | Private company limited by shares | Live |
| HONG KONG VEHICLE TESTING LABORATORY LIMITED | Private company limited by shares | Dissolved |
| HONGKONG MANLIX BIOMEDICAL LABORATORY CENTRE LIMITED | Private company limited by shares | Live |
| Hongkong Lujiao Lane Tea Research Laboratory Limited | Private company limited by shares | Live |
| IMAGE LABORATORY LIMITED | Private company limited by shares | Live |
| INDUSTRIAL LABORATORY ACCESSORY COMPANY LIMITED | Private company limited by shares | Dissolved |
| Emirates Industrial Laboratory Limited | Private company limited by shares | Live |
| HONG KONG ARTIFICIAL INTELLIGENCE LABORATORY COMPANY LIMITED | Private company limited by shares | Live |
| HUA CE INTERNATIONAL FINANCE RESEARCH LABORATORY LIMITED | Private company limited by shares | Live |
| Asia Investment Laboratory Limited | Private company limited by shares | Live |
| LABORATORY OF JEWELLERY LIMITED | Private company limited by shares | Dissolved |
| JEWELLERY TRADE LABORATORY LIMITED | Private company limited by shares | Live |
| Jiabin Science Laboratory Limited | Private company limited by shares | Live |
| Jiangsu Agrochem Laboratory Co., Limited | Private company limited by shares | Live |
| JIANGSU JIAHONG LABORATORY EQUIPMENT CO., LIMITED | Private company limited by shares | Live |
| JIREH LABORATORY LIMITED | Private company limited by shares | Dissolved |
| JOBS LABORATORY LIMITED -THE- | Private company limited by shares | Live |
| KARLY MEDICAL DIAGNOSTIC & LABORATORY LIMITED | Private company limited by shares | Live |
| AUT Lamp Testing Laboratory Limited | Private company limited by shares | Live |
| LANYA DENTAL LABORATORY LIMITED | Private company limited by shares | Dissolved |
| Dr. Life Laboratory Limited | Private company limited by shares | Dissolved |
| PARTICLE LIFE MEDICAL LABORATORY CO., LIMITED | Private company limited by shares | Live |
| GREEN LIFE LABORATORY LIMITED | Private company limited by shares | Live |
| Life Healthcare Medical Laboratory Limited | | Live |
| New Life Laboratory Testing Limited | Private company limited by shares | Live |
| Little Mouse Laboratory Limited | | Live |
| TCM Laboratory Supplies (London) Limited | Private company limited by shares | Live |
| Smart Materials Laboratory Limited | Private company limited by shares | Live |
| MEDI LABORATORY LIMITED | Private company limited by shares | Live |
| ACME MEDICAL LABORATORY LIMITED | Private company limited by shares | Live |
| DNC MEDICAL RESEARCH & LABORATORY ASIA LIMITED | Private company limited by shares | Live |
| CENTRAL MEDICAL LABORATORY LIMITED | Private company limited by shares | Dissolved |
| LOK FU MEDICAL LABORATORY CENTRE LIMITED | Private company limited by shares | Dissolved |
| CHINA MEDICAL LABORATORY LIMITED | Private company limited by shares | Dissolved |
| CLINTEC MEDICAL LABORATORY LIMITED | Private company limited by shares | Live |
| DISCOVERY MEDICAL LABORATORY LIMITED | Private company limited by shares | Dissolved |
| MEDICAL GENETIC LABORATORY LIMITED | Private company limited by shares | Dissolved |
| GERMANY MEDICAL LABORATORY LIMITED | Private company limited by shares | Dissolved |
| HANG SENG MEDICAL LABORATORY COMPANY LIMITED | Private company limited by shares | Dissolved |
| HEALTH-TECH MEDICAL LABORATORY LIMITED | Private company limited by shares | Live |
| HERCULES MEDICAL LABORATORY LIMITED | Private company limited by shares | Live |
| HERCULES MEDICAL DIAGNOSTIC & LABORATORY GROUP LIMITED | Private company limited by shares | Live |
| HONG KONG HEEP WO MEDICAL LABORATORY LIMITED | Private company limited by shares | Dissolved |
| LAMY Medical Laboratory Limited | Private company limited by shares | Live |
| Medisun Medical Laboratory Limited | Private company limited by shares | Live |
| MedTec Medical Laboratory Centre Limited | Private company limited by shares | Live |
| MID-SOUTH MEDICAL LABORATORY LIMITED | Private company limited by shares | Dissolved |
| ON KIN (OK) MEDICAL LABORATORY LIMITED | Private company limited by shares | Live |
| ONCO MEDICAL LABORATORY LIMITED | Private company limited by shares | Live |
| ONWARD MEDICAL LABORATORY LIMITED | Private company limited by shares | Live |
| PRECISION MEDICAL LABORATORY LIMITED | Private company limited by shares | Live |
| SCIENMEDIC LABORATORY AND MEDICAL SUPPLIES LIMITED | Private company limited by shares | Dissolved |