| TCL TESTING LIMITED | Private company limited by shares | Live |
| API LAB TESTING LIMITED | Private company limited by shares | Live |
| SgT Lab Testing Limited | Private company limited by shares | Live |
| TE TESTING LIMITED | Private company limited by shares | Live |
| L. A. B. Testing Company Limited | Private company limited by shares | Live |
| Allian Testing Limited | Private company limited by shares | Live |
| AT ARCHITECTURAL TESTING CO LIMITED | Private company limited by shares | Live |
| ASIA TESTING AND CERTIFICATION LIMITED | Private company limited by shares | Live |
| SIS Asian Testing Limited | Private company limited by shares | Dissolved |
| B.B.K. TESTING MACHINERY COMPANY LIMITED | Private company limited by shares | Live |
| CASTCO TESTING CENTRE LIMITED | Private company limited by shares | Live |
| IPS Testing Center Limited | | Live |
| HK Chinese Treasure Cultural Relics Identification Testing Research Center Limited | Private company limited by shares | Live |
| QA TESTING CENTRE LIMITED | Private company limited by shares | Dissolved |
| 3A Testing Centre Limited | Private company limited by shares | Live |
| ITL Testing and Certification Limited | Private company limited by shares | Live |
| E&M Testing & Certification Limited | | Live |
| CHINA ELECTRIC TESTING CENTRE LIMITED | Private company limited by shares | Live |
| ADVANCED TESTING MACHINES (CHINA) LIMITED | Private company limited by shares | Live |
| AccuService Testing Co., Limited | Private company limited by shares | Dissolved |
| Global International Standard Testing and Certification Center Co., Limited | Private company limited by shares | Live |
| New Testing Centre Co., Limited | Private company limited by shares | Dissolved |
| SG TESTING & CERTIFICATION CO., LIMITED | Private company limited by shares | Dissolved |
| QTC Certification & Testing Co., Limited | Private company limited by shares | Live |
| TUV CERTIFICATION AND TESTING CO., LIMITED | | Live |
| ELEMENT TESTING CO., LIMITED | Private company limited by shares | Live |
| CHINA INDOOR ENVIRONMENTAL QUALITY TESTING CO., LIMITED | Private company limited by shares | Live |
| Ntree Testing Lab Co., Limited | Private company limited by shares | Live |
| OSETS Language Testing Center CO., Limited | Private company limited by shares | Live |
| STS TESTING SERVICE CO., LIMITED | Private company limited by shares | Dissolved |
| JAS (TESTING SERVICE) CO., LIMITED | Private company limited by shares | Live |
| An-Teng Testing Service Co., Limited | Private company limited by shares | Live |
| CETC TESTING SERVICE CO., LIMITED | Private company limited by shares | Live |
| Global Standard Testing Service (HK) Co., Limited | Private company limited by shares | Live |
| NATION TESTING SERVICE CO., LIMITED | Private company limited by shares | Live |
| STD STANDARDS AND TESTING CO., LIMITED | Private company limited by shares | Live |
| ULAB TESTING CO., LIMITED | Private company limited by shares | Live |
| MANON CONSUMER TESTING SERVICES & CONSULTANCY (HK) LIMITED | Private company limited by shares | Live |
| Zenith Testing & Consultancy Limited | Private company limited by shares | Live |
| DATA CENTRE TESTING CONSULTANCY ASIA LIMITED | Private company limited by shares | Live |
| Explora Testing Limited | Private company limited by shares | Live |
| FOCALPOINT TESTING LIMITED | Private company limited by shares | Dissolved |
| Fortest Testing Limited | Private company limited by shares | Live |
| GENERAL TESTING LIMITED | Private company limited by shares | Live |
| Global-Standard Testing Service Company Limited | Private company limited by shares | Live |
| WS TESTING & CERTIFICATION (ASIA) GROUP LIMITED | Private company limited by shares | Dissolved |
| HIBOND TESTING LIMITED | Private company limited by shares | Dissolved |
| EUROPEAN TESTING AUTHORITY HOLDING LIMITED | Private company limited by shares | Dissolved |
| JAS (INSPECTION & TESTING) LIMITED | Private company limited by shares | Live |
| TCK Testing & Inspection Limited | Private company limited by shares | Live |
| JFC TESTING AND INSPECTION COMPANY LIMITED | Private company limited by shares | Live |
| SY Inspection and Testing Limited | Private company limited by shares | Live |
| MINERAL INSPECTION & TESTING RESEARCH ASSOCIATION LIMITED | Private company limited by shares | Dissolved |
| INTEGRITY TESTING LIMITED | Private company limited by shares | Dissolved |
| LIANXIN TESTING LIMITED | Private company limited by shares | Live |
| OriGene DNA Testing Company Limited | Private company limited by shares | Live |
| ASIA PACIFIC TESTING & CERTIFICATION LIMITED | Private company limited by shares | Live |
| Pharmacogenomic Testing Limited | Private company limited by shares | Live |
| Pilot Testing Limited | Private company limited by shares | Live |
| Testing Reconditioning Limited | Private company limited by shares | Live |
| Senergy Testing Solutions Limited | Private company limited by shares | Live |
| ETS TESTING SERVICE LIMITED | Private company limited by shares | Dissolved |
| TCA Testing Service Limited | Private company limited by shares | Dissolved |
| AYT TESTING SERVICE COMPANY LIMITED | Private company limited by shares | Live |
| TMC TESTING SERVICE LIMITED | Private company limited by shares | Live |
| BVS TESTING AND SERVICE CO. LIMITED | Private company limited by shares | Live |
| RELIANCE TESTING SERVICE LIMITED | Private company limited by shares | Live |
| VSCB Testing & Certification Service HK Limited | Private company limited by shares | Live |
| VSCB HK Testing & Certification Service Limited | Private company limited by shares | Live |
| SOCOMAT TESTING LIMITED | Private company limited by shares | Live |
| Standard Testing Limited | Private company limited by shares | Live |
| GST STANDARDS AND TESTING LIMITED | Private company limited by shares | Live |
| ETA TESTING TECHNOLOGY LIMITED | Private company limited by shares | Live |
| NSF HK Testing Technology Company Limited | Private company limited by shares | Live |
| HOS TESTING TECHNOLOGY LIMITED | Private company limited by shares | Live |
| ADVANCED TESTING TECHNOLOGY LIMITED | Private company limited by shares | Live |
| SHENZHEN MINGJI TESTING TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| TECHNOLOGY SOLUTION TESTING LIMITED | Private company limited by shares | Live |
| MC WELL TESTING LIMITED | Private company limited by shares | Live |
| CN WELL TESTING LIMITED | Private company limited by shares | Live |
| XIATEK TESTING AND CERTIFICATION LIMITED | Private company limited by shares | Dissolved |
| HK JEWELLERY ADVANCED TESTING&TRANING CENTER LIMITED | Private company limited by shares | Live |
| AGRADE TESTINSPECT LIMITED | Private company limited by shares | Live |
| TESTLA Limited | | Live |
| Testlake Limited | Private company limited by shares | Live |
| Testlee-Intelligent Co., Limited | Private company limited by shares | Live |
| TESTLINE ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| Remer Testmachine (HK) Co., Limited | Private company limited by shares | Live |
| TESTNOLOGIES LIMITED | Private company limited by shares | Live |
| TESTO LIMITED | Private company limited by shares | Live |
| TESTON TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| TESTONI (FRANCE) DRESS LIMITED | Private company limited by shares | Live |
| TESTONI KNITTING FACTORY LIMITED | Private company limited by shares | Dissolved |
| TestPlan Limited | Private company limited by shares | Live |
| TESTRA LIMITED | Private company limited by shares | Live |
| TESTRAN INDUSTRIES CO., LIMITED | Private company limited by shares | Live |
| TEST-RITE PRODUCTS (HONG KONG) LIMITED | Private company limited by shares | Live |
| TESTRONG TOYS LIMITED | Private company limited by shares | Live |
| GLOBAL TESTS LIMITED | Private company limited by shares | Live |
| TESTSVYAZ IT LIMITED | Private company limited by shares | Live |