Sukup Manufacturing Co. is a family-owned manufacturer of grain bins, grain dryers, material handling equipment and pre-engineered metal buildings. The world's fastest growing bin company and largest family-owned, full-line grain drying and storage equipment manufacturer, Sukup Manufacturing Co. is located in the heart of rich, Midwestern farmland. Since the introduction of our first stirring machine in 1963, we have been manufacturing products to make grain production more efficient for farmers.