QuantaMatrix (주식회사 퀀타매트릭스) is an in-vitro diagnostics company that develops optical devices for microbiological and molecular diagnostics. Its products include dRAST, an antimicrobial susceptibility test for treating sepsis that provides phenotypic antimicrobial susceptibility testing directly from positive blood culture; QDST, a phenotypic drug susceptibility testing system for tuberculosis; QPLEX Alz plus assay, a diagnosis kit for Alzheimer's disease; and Quanti9 and QuantiGal, a prognostic prediction kit for cardiovascular diseases.