| STRING ART LABORATORY LIMITED | Private company limited by shares | Live |
| Suhada Laboratory Co. Limited | Private company limited by shares | Live |
| SUNNET LABORATORY COMPANY LIMITED | Private company limited by shares | Dissolved |
| SST SURFACE-STRENGTHENING-TECHNOLOGY LABORATORY (HK) LIMITED | Private company limited by shares | Live |
| SWASH LABORATORY LIMITED | Private company limited by shares | Live |
| 3D Synthesis Laboratory Limited | Private company limited by shares | Live |
| INET SYSTEM LABORATORY LIMITED | Private company limited by shares | Dissolved |
| MONADIC SYSTEM RESEARCH LABORATORY LIMITED | Private company limited by shares | Dissolved |
| LABORATORY SYSTEMS CONSULTANTS LIMITED | Private company limited by shares | Live |
| Lab-Plus Laboratory Systems Limited | Private company limited by shares | Dissolved |
| Income Team Laboratory Limited | Private company limited by shares | Live |
| Laboratory for AI-Powered Financial Technologies Limited | Company limited by guarantee | Live |
| MTI TECHNOLOGY LABORATORY LIMITED | Private company limited by shares | Dissolved |
| DISK FW LABORATORY ELECTRONIC TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| WISDOM TECHNOLOGY NETWORK LABORATORY LIMITED | Private company limited by shares | Dissolved |
| WINCAS TECHNOLOGY LABORATORY LIMITED | Private company limited by shares | Dissolved |
| HKIB TECHPOOL RESEARCH LABORATORY LIMITED | Private company limited by shares | Dissolved |
| TECHRAY LABORATORY INSTRUMENTS CO., LIMITED | Private company limited by shares | Live |
| WARTTYER TELELIFE LABORATORY LIMITED | Private company limited by shares | Dissolved |
| ASIA TESTING LABORATORY LIMITED | Private company limited by shares | Live |
| ASIA TESTING CENTRE LABORATORY LIMITED | Private company limited by shares | Dissolved |
| TCM Testing & Calibration Laboratory Limited | Private company limited by shares | Live |
| Bell Laboratory Testing Service Co., Limited | Private company limited by shares | Live |
| E-inhealth Testing Laboratory Limited | | Live |
| Promet Metals Testing Laboratory Limited | Private company limited by shares | Live |
| SPECTRUM RESEARCH AND TESTING LABORATORY LIMITED | Private company limited by shares | Live |
| SUNNIC RESEARCH & TESTING LABORATORY LIMITED | Private company limited by shares | Dissolved |
| WASSERBEL TESTING LABORATORY LIMITED | Private company limited by shares | Live |
| THEMIS LABORATORY CO., LIMITED | Private company limited by shares | Dissolved |
| THING-ING LABORATORY LIMITED | Company limited by guarantee | Live |
| THIZLINUX LABORATORY LIMITED | Private company limited by shares | Live |
| Toda Research Laboratory (HK) Limited | Private company limited by shares | Live |
| TOEI GENERAL LABORATORY (H.K.) CO., LIMITED | Private company limited by shares | Dissolved |
| TOPDENT INTERNATIONAL DENTAL LABORATORY LIMITED | Private company limited by shares | Live |
| BUSINESS TRAINING LEARNING LABORATORY LIMITED | Private company limited by shares | Dissolved |
| TWIN WAY RESEARCH & LABORATORY LIMITED | Private company limited by shares | Dissolved |
| UCOSME Asia Skin Scientific Laboratory Limited | Private company limited by shares | Dissolved |
| Unbelievable Testing Laboratory Limited | Private company limited by shares | Live |
| UNITED COMPUTING LABORATORY LIMITED | Private company limited by shares | Dissolved |
| UNITED STANDARD TESTING LABORATORY LIMITED | Private company limited by shares | Live |
| UNIVERSAL LABORATORY LIMITED | Private company limited by shares | Dissolved |
| Universal Laboratory Limited | Private company limited by shares | Live |
| UNIVERSAL DENTAL LABORATORY LIMITED | Private company limited by shares | Live |
| URBAN FITNESS MEDICAL LABORATORY SERVICES LIMITED | Private company limited by shares | Live |
| VANGUARD COMPUTER ASSISTED LABORATORY LIMITED | Private company limited by shares | Live |
| CityU Veterinary Diagnostic Laboratory Company Limited | Private company limited by shares | Live |
| PHC Veterinary Laboratory Management Limited | Private company limited by shares | Dissolved |
| LAVA LABORATORY FOR VISIONARY ARCHITECTURE LIMITED | Private company limited by shares | Live |
| VITA GREEN LABORATORY (AP LEI CHAU) LIMITED | Private company limited by shares | Live |
| VITA24 DENTAL LABORATORY LIMITED | Private company limited by shares | Live |
| VOLENT LABORATORY LIMITED | Private company limited by shares | Live |
| WARTTYER LABORATORY LIMITED | Private company limited by shares | Dissolved |
| GUANGZHOU WILSON LABORATORY EQUIPMENT CO., LIMITED | Private company limited by shares | Live |
| Yosakura Laboratory Limited | Private company limited by shares | Live |
| Zeta Laboratory Limited | Private company limited by shares | Dissolved |
| GERMANY LABORCOSTPLUS INT'L LIMITED | Private company limited by shares | Live |
| LABORDETTE COMPANY LIMITED | Private company limited by shares | Dissolved |
| LABOREMO LIMITED | | Live |
| LA-BORSA MILANO LIMITED | Private company limited by shares | Dissolved |
| COLENTA LABORTECHNIK GROUP CO., LIMITED | | Live |
| HERMLE LABORTECHNIK (HONG KONG) LIMITED | Private company limited by shares | Live |
| Shenzhen Labory Technology Co., Limited | | Live |
| LABOSA LIMITED | Private company limited by shares | Dissolved |
| LABOSERV DIAGNOSTICS LIMITED | Private company limited by shares | Dissolved |
| LABOSTER COMPANY LIMITED | Private company limited by shares | Live |
| GERMANY LABOT GROUP LIMITED | Private company limited by shares | Live |
| LABOTECH CO., LIMITED | Private company limited by shares | Live |
| LABOTECH DENTAL LIMITED | Private company limited by shares | Live |
| LABOTECH (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| LABOTRIX GROUP LIMITED | Private company limited by shares | Live |
| LABOULE LIMITED | Private company limited by shares | Dissolved |
| Labour Relationship Coordinating Centre Limited | Private company limited by shares | Live |
| CHINA FLOOR LABOUR SERVICE LIMITED | Private company limited by shares | Live |
| CHRISTIAN LABOUR CHURCH LIMITED | Company limited by guarantee | Dissolved |
| XUN JIE LABOUR PROTECTION TRADE CO., LIMITED | Private company limited by shares | Live |
| Labour Education and Service Network Limited | Company limited by guarantee | Live |
| FUJIAN EXTERNAL LABOUR SERVICE COMPANY LIMITED | Private company limited by shares | Live |
| LABOUR FORCE INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| Labour Guru Limited | Private company limited by shares | Live |
| TBXL LABOUR PROTECTION PRODUCTS LIMITED | Private company limited by shares | Live |
| DongGuan Labour Reunion Association Limited | Company limited by guarantee | Live |
| JIANGXI LABOUR REUNION ASSOCIATION LIMITED | | Live |
| LABOUR SUPPLY COMPANY LIMITED | Private company limited by shares | Dissolved |
| Love's Labour's Lost Limited | | Live |
| LABOUSSOLE SEON LIMITED | Private company limited by shares | Live |
| LABOV FINANCE COMPANY LIMITED | Private company limited by shares | Live |
| LABPOINT COMPANY LIMITED | Private company limited by shares | Dissolved |
| LabPRIG Limited | Private company limited by shares | Live |
| Shenzhen Labra Tech Limited | Private company limited by shares | Live |
| LABRADOR INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| LABRADOR NETWORKS LIMITED | Private company limited by shares | Live |
| LABRADOR SPORTSWEAR LIMITED | Private company limited by shares | Dissolved |
| Labrary Limited | Private company limited by shares | Live |
| Labratrade Consulting Limited | Private company limited by shares | Live |
| Labridge Limited | | Live |
| LABRO LIMITED | Private company limited by shares | Dissolved |
| LABRON COMPANY LIMITED | Private company limited by shares | Dissolved |
| LABROYE LIMITED | Private company limited by shares | Dissolved |
| LABRUM & HO LIMITED | Private company limited by shares | Dissolved |
| LABRUP MANUFACTURING LIMITED | Private company limited by shares | Dissolved |