| Advance Clinical Laboratory |
| Asian Medical Diagnostic Centre (Founding Member) |
| Bio-Technology Ltd |
| Bright Growth Medical Laboratory Limited (Founding Member) |
| Central Diagnostic Clinic |
| Chan & Hou Medical Laboratories Ltd (Founding Member) |
| DeNovo Service Limited |
| Diagnostix Medical Centre Ltd |
| Ethics Medical Laboratory Ltd |
| Exact Medical Laboratory & X-Ray Services (Founding Member) |
| HealthBaby Biotech (Hong Kong) Co., Ltd. |
| Health-Tech Medical Laboratory Limited (Founding Member) |
| Hong Kong Health Check & Medical Diagnostic Group Limited - Hong Kong Health Check Medical Laboratory |
| Hong Kong Molecular Pathology Diagnostic Centre Ltd. |
| Hong's Laboratory Services Ltd |
| LSM Laboratory Limited |
| MDL Micron Diagnostic Laboratory Limited |
| New Life Laboratory Testing Limited |
| Onco Medical Laboratory Limited |
| PathLab Medical Laboratory Ltd (Founding Member) |
| PHC Medical Diagnostic Centre Limited |
| Quality HealthCare Medical Services Limited |
| The Giant Medical Lab & X-Ray Service Ltd (Founding Member) |
| Thomas Medical Laboratory (Founding Member) |
| Uni-Lab Limited (Founding Member) |
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| V Medical Lab Limited |
| Xcelom Limited |
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