| HK.DNA DIAGNOSTICS CENTRE LABORATORY LIMITED | Private company limited by shares | Live |
| HK.DNA Diagnostics Laboratory Limited | | Live |
| DIAMOND GRADING LABORATORY LIMITED | Private company limited by shares | Dissolved |
| Diem Laboratory Limited | | Live |
| Drip Birds Laboratory Limited | | Live |
| DUCHEM LABORATORY TOPS AND ACCESSORIES LIMITED | Private company limited by shares | Live |
| DUSTIN'S LABORATORY LIMITED | Private company limited by shares | Live |
| EAST ASIA LABORATORY SUPPLIES LIMITED | Private company limited by shares | Live |
| EMISSION LABORATORY (H. K.) LIMITED | Private company limited by shares | Dissolved |
| EMPIRE VIDEO AND FILM LABORATORY LIMITED | Private company limited by shares | Dissolved |
| SUN TAC LABORATORY FURNITURE ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| ENVIRO-CHEM ENGINEERING AND LABORATORY COMPANY LIMITED | Private company limited by shares | Live |
| GAMMA LABORATORY (ENGINEERING) LIMITED | Private company limited by shares | Live |
| ENZYMATIC LABORATORY SUPPLY LIMITED | Private company limited by shares | Dissolved |
| Ethics Medical Laboratory Limited | Private company limited by shares | Live |
| HONG KONG EXHAUST EMISSION LABORATORY LIMITED | Private company limited by shares | Live |
| Pretty Eyes Laboratory Limited | Private company limited by shares | Live |
| FILM LABORATORY LIMITED | Private company limited by shares | Live |
| S & P FILM LABORATORY LIMITED | Private company limited by shares | Dissolved |
| 16MM FILM LABORATORY LIMITED | Private company limited by shares | Dissolved |
| FlamingGO Laboratory Limited | Private company limited by shares | Live |
| FREE-RADICAL LABORATORY LIMITED | Private company limited by shares | Dissolved |
| Friction Laboratory Company Limited | Private company limited by shares | Live |
| FUTURE SOLUTIONS LABORATORY LIMITED | Private company limited by shares | Live |
| Net Games Laboratory Limited | Private company limited by shares | Live |
| GAMMA LABORATORY LIMITED | Private company limited by shares | Live |
| GAMMA LABORATORY INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| Asia Gemological Laboratory (Hong Kong) Limited | Private company limited by shares | Live |
| GEMOLOGICAL LABORATORY OF HONG KONG LIMITED | Private company limited by shares | Dissolved |
| GENEPRO LABORATORY LIMITED | Private company limited by shares | Dissolved |
| GENETICS BIOMEDICAL LABORATORY LIMITED | Private company limited by shares | Live |
| LABORATORY GENETICS AND GENOMICS LIMITED | Private company limited by shares | Live |
| GENIQE LABORATORY COMPANY LIMITED | Private company limited by shares | Live |
| S. HUI GEOLOGICAL RESEARCH LABORATORY, LIMITED | Private company limited by shares | Live |
| GERICOM LABORATORY LIMITED | Private company limited by shares | Dissolved |
| THK Global Genetics Laboratory Limited | | Live |
| Global Mobility Laboratory (HK) Limited | Private company limited by shares | Live |
| LYNX LABORATORY GLOBAL HK LIMITED | Private company limited by shares | Live |
| GLOBAL GEM TESTING LABORATORY LIMITED | Private company limited by shares | Live |
| GLOBE TAOISM GEOMANCY LABORATORY (CHINA) LIMITED | Private company limited by shares | Live |
| GOLF LABORATORY LIMITED | Private company limited by shares | Live |
| GREAT EASTERN CLINICAL LABORATORY LIMITED | Private company limited by shares | Dissolved |
| GREEN LABORATORY CO., LIMITED | Private company limited by shares | Dissolved |
| Green Laboratory Equipment Co., Limited | Private company limited by shares | Live |
| Guangzhou LuMi Laboratory Co., Limited | Private company limited by shares | Live |
| GUY'S TOYS LABORATORY LIMITED | Private company limited by shares | Live |
| 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 |