SD Biosensor, Inc. is an in-vitro diagnostics company based in Suwon-si, South Korea, founded in 1999. Together with its subsidiaries, it operates across South Korea, India, Asia, Europe, the Americas, and Africa, and exports its products. Its offerings include the STANDARD Q rapid diagnostic products, the STANDARD F fluorescence immunodiagnostic system, the STANDARD E enzyme immunoassay for large-volume tests, and the STANDARD M field molecular diagnostic system for infectious disease, drug resistance, and genetic testing. It also provides the STANDARD i chemiluminescence immunoassay analyzer for clinical biomarkers such as hormones, tumor markers, and infectious diseases, along with blood glucose meters and other products including transport medium, the d-BLOCK incubator, G6PD analyzer, LipidoCare analyzer, MultiCare analyzer, and the Pilot COVID-19 at-home test.