Biesanz Stone was formed in 1875. The company has, for more than a century, provided natural stone products for both residential and commercial applications. These include floor tile, sills, coping, wall panels, split face veneer as well as other applications. It has also developed a prefabricated insulated stone panel, which the company has successfully produced for more than 20 years. Biesanz Stone is headquartered in Winona, Minn.