Denka Seiken

Denka (formerly Denka Seiken) is a prominent Japanese life sciences company specializing in the development and manufacture of vaccines and diagnostic reagents. As a core part of Denka Company Limited's Life Innovation segment, the company is a leading provider of influenza vaccines in Japan and a global developer of rapid diagnostic test kits. Their product portfolio includes the widely used QuickNavi series for infectious diseases such as COVID-19, influenza, and norovirus. Beyond diagnostics, the company produces high-quality clinical chemistry reagents for monitoring cardiovascular health and other chronic conditions. Headquartered in Tokyo with major production facilities in Niigata, Denka continues to expand its global footprint in the healthcare sector through advanced biotechnology and chemical expertise.