Bio-Techne Corp. engages in the development, manufacture and sale of biotechnology products and clinical diagnostic controls. It operates through three segments include: Biotechnology, Clinical Controls and Protein Platforms. The Biotechnology segment is a suppliers of specialized proteins, such as cytokines, growth factors, immunoassays, antibodies and related reagents, to the biotechnology research community. The Clinical Controls segment develops and manufactures controls and calibrators for instruments in the global clinical market. The Protein Platforms segment develops, manufactures and sells tools to make protein analysis simpler, more quantitative and reproduceable. The company was founded on July 17, 1981 and is headquartered in Minneapolis, MN.