CTK Biotech, Inc.

Medical Equipment ManufacturingCalifornia, United States51-200 Employees

In 2020, CTK Biotech was acquired by SSI Diagnostica Group. Today, CTK Biotech functions as a brand under SSI Diagnostica Group.
About SSI Diagnostica Group: SSI Diagnostica Group is a global in vitro diagnostics (IVD) company, specializing in infectious disease diagnostics. We employ staff and operate offices in Denmark, the United States, and China, with a total of eleven sites across three different continents. Each year, we deliver diagnostic solutions in more than 130 countries and manufacture more than 60 million diagnostic tests – helping people receive the right diagnosis and, ultimately, the right treatment as quickly as possible. Operating as one company today, SSI Diagnostica Group is historically the result of a series of acquisitions: SSI Diagnostica (2016), CTK Biotech (2020), Beijing Genesee Biotech (2020), Techlab (2022), Gulf Coast Scientific (2025), and InDevR (2026). Each brand has brought unique expertise and experience to the group, and as a combined company we offer more than 200 years of combined scientific expertise. SSID Group’s mission is to empower healthcare professionals to prevent, monitor, and diagnose infectious diseases – enabling better treatment outcomes for patients worldwide. SSI Diagnostica group has four disease focus areas: Gastric, Respiratory, Bloodborne, and general microbiology.

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