| QU LABORATORY LIMITED | Private company limited by shares | Dissolved |
| CT Laboratory Limited | Private company limited by shares | Live |
| HK LABORATORY LIMITED | Private company limited by shares | Dissolved |
| ACT LABORATORY LIMITED | Private company limited by shares | Dissolved |
| LABORATORY LIMITED -THE- | Private company limited by shares | Dissolved |
| CEL LABORATORY LIMITED | Private company limited by shares | Dissolved |
| Z LABORATORY LIMITED | Private company limited by shares | Live |
| YIP LABORATORY COMPANY LIMITED | Private company limited by shares | Live |
| CSG Laboratory Company Limited | Private company limited by shares | Dissolved |
| ST LABORATORY COMPANY LIMITED | Private company limited by shares | Live |
| CGS Laboratory Company Limited | Private company limited by shares | Live |
| GSA Laboratory Limited | Private company limited by shares | Live |
| IAQ LABORATORY LIMITED | Private company limited by shares | Live |
| DNA Laboratory Limited | Private company limited by shares | Live |
| ART LABORATORY LIMITED | Private company limited by shares | Live |
| TSK Laboratory, HK Limited | Private company limited by shares | Live |
| RF LABORATORY LIMITED | Private company limited by shares | Live |
| V&R Laboratory Limited | Private company limited by shares | Live |
| LSM Laboratory Limited | Private company limited by shares | Live |
| ALT LABORATORY LIMITED | Private company limited by shares | Live |
| JOE LAW LABORATORY LIMITED | Private company limited by shares | Live |
| Be Laboratory Limited | Private company limited by shares | Live |
| 463 Laboratory Limited | Private company limited by shares | Live |
| RK LABORATORY LIMITED | Private company limited by shares | Live |
| HIS ART LABORATORY LIMITED | Private company limited by shares | Live |
| QFR Laboratory Limited | | Live |
| TBD Laboratory LIMITED | | Live |
| ACCUHEALTH LABORATORY LIMITED | Private company limited by shares | Live |
| AUDIO SPACE ACOUSTIC LABORATORY LIMITED | Private company limited by shares | Live |
| A-DIAGNOSTIC LABORATORY LIMITED | Private company limited by shares | Live |
| ADVANCE MESSAGING LABORATORY LIMITED | Private company limited by shares | Dissolved |
| Alice Theatre Laboratory Limited | Company limited by guarantee | Live |
| AMBERLEY LABORATORY EQUIPMENT LIMITED | Private company limited by shares | Live |
| APPLEONE CALIBRATION LABORATORY LIMITED | Private company limited by shares | Live |
| Bay Area Laboratory Limited | Private company limited by shares | Live |
| VICTORY "ART" LABORATORY LIMITED | Private company limited by shares | Live |
| NOVAE ARTES LABORATORY LIMITED | Private company limited by shares | Dissolved |
| KTS LABORATORY (ASIA) LIMITED | Private company limited by shares | Dissolved |
| METALS ASSURANCE LABORATORY (HK) LIMITED | Private company limited by shares | Dissolved |
| ASUN LABORATORY LIMITED | | Live |
| WOW AUDIO LABORATORY LIMITED | Private company limited by shares | Live |
| ANN DIGITAL AUDIO LABORATORY LIMITED | Private company limited by shares | Dissolved |
| C & C AUTHENTICATION LABORATORY LIMITED | Private company limited by shares | Dissolved |
| AVALON-CENTER LABORATORY LIMITED | Private company limited by shares | Dissolved |
| BEAUTY LABORATORY LIMITED | Private company limited by shares | Dissolved |
| BELLING TESTING LABORATORY (HK) CO., LIMITED | Private company limited by shares | Live |
| BERWICK MEDICAL LABORATORY LIMITED | Private company limited by shares | Dissolved |
| BETA LABORATORY COMPANY LIMITED | Private company limited by shares | Live |
| BICKLER YE LABORATORY LIMITED | Private company limited by shares | Live |
| BioFortune Laboratory Limited | Private company limited by shares | Live |
| BioMed Laboratory Company Limited | Private company limited by shares | Live |
| Laboratory for Advanced Biomedical Instrumentation Limited | Company limited by guarantee | Live |
| HONG KONG BIOTECH LABORATORY LIMITED | Private company limited by shares | Live |
| ASIA PACIFIC BLOCKCHAIN LABORATORY HOLDING LIMITED | Private company limited by shares | Live |
| BODYGUARD LABORATORY LIMITED | Private company limited by shares | Dissolved |
| BODYGUARD LABORATORY LIMITED | Private company limited by shares | Live |
| B.R.C. LABORATORY (H.K.) LIMITED | Private company limited by shares | Dissolved |
| BRIGHT GROWTH MEDICAL LABORATORY LIMITED | Private company limited by shares | Live |
| CAINOZOIC SKIN LABORATORY LIMITED | Private company limited by shares | Live |
| Cairns Solution Laboratory Limited | Private company limited by shares | Live |
| CANTOPOP LABORATORY LIMITED | Company limited by guarantee | Live |
| Captain Laboratory Limited | Private company limited by shares | Live |
| CELLUWARE RESEARCH LABORATORY LIMITED | Private company limited by shares | Live |
| VERTITECH CERTIFICATION & TESTING LABORATORY CO., LIMITED | Private company limited by shares | Live |
| MU CHARM LABORATORY LIMITED | Private company limited by shares | Live |
| CheeseLion Laboratory Limited | Private company limited by shares | Live |
| CHEMLAB LABORATORY INSTRUMENT (CHINA) CO., LIMITED | Private company limited by shares | Live |
| CHEUK YUET LABORATORY LIMITED | Private company limited by shares | Dissolved |
| CLD LABORATORY (CHINA) LIMITED | Private company limited by shares | Dissolved |
| CHINA LABORATORY LIMITED | Private company limited by shares | Live |
| Chinese Laboratory Fedration Limited | Private company limited by shares | Live |
| Chocolate Laboratory Limited | | Live |
| TOKYO CATHODE LABORATORY (H.K.) CO., LIMITED | Private company limited by shares | Live |
| GALAXY LABORATORY STOCK CO., LIMITED | Private company limited by shares | Dissolved |
| LABORATORY SPECIALIST CO., LIMITED | Private company limited by shares | Live |
| STANFORD LABORATORY CO., LIMITED | Private company limited by shares | Live |
| XIANGYUN LABORATORY EQUIPMENT CO., LIMITED | Private company limited by shares | Live Commenced dormancy on 10-Jan-2012 |
| DR. COACH LABORATORY COMPANY LIMITED | Private company limited by shares | Dissolved |
| COMPLEX LABORATORY LIMITED | Private company limited by shares | Live |
| Bay Area Compliance Laboratory Corp. Limited | Private company limited by shares | Dissolved |
| Bey Area Compliance Laboratory Corp Limited | Private company limited by shares | Live |
| HK LCS Compliance Testing Laboratory Limited | Private company limited by shares | Live |
| COMPUTER SYSTEM LABORATORY HONGKONG LIMITED | Private company limited by shares | Dissolved |
| The Art Laboratory Concept Limited | | Live |
| Green Concept Laboratory Limited | Private company limited by shares | Live |
| HANLUN CONSTRUCTION MATERIALS TESTING LABORATORY LIMITED | | Live |
| SMART CONSTRUCTION LABORATORY LIMITED | | Live |
| VANNY CONTRACTED RESEARCH LABORATORY LIMITED | Private company limited by shares | Live |
| COOP COMPUTER GRAPHICS LABORATORY LIMITED | Private company limited by shares | Dissolved |
| CORETECH LABORATORY CO. LIMITED | Private company limited by shares | Live |
| Create Laboratory Limited | Private company limited by shares | Dissolved |
| C-TECH LABORATORY EQUIPMENT CO., LIMITED | Private company limited by shares | Live |
| CVLAB CARDIOVASCULAR LABORATORY LIMITED | Private company limited by shares | Live |
| ONCO CYTOLOGY LABORATORY LIMITED | Private company limited by shares | Dissolved |
| Datian Laboratory Limited | | Live |
| I - DENT LABORATORY LIMITED | Private company limited by shares | Dissolved |
| ABC DENTAL LABORATORY LIMITED | Private company limited by shares | Dissolved |
| DENTAL ART LABORATORY COMPANY LIMITED | Private company limited by shares | Live |
| LEO DENTAL LABORATORY LIMITED | Private company limited by shares | Dissolved |
| HKT DENTAL LABORATORY LIMITED | Private company limited by shares | Dissolved |