Sukup Manufacturing Co. is the world's largest family-owned and operated manufacturer of grain storage, drying and handling equipment. The company is headquartered in America's heartland - Sheffield, Iowa - and covers one million square feet of office, manufacturing and warehouse space. The company employs more than 600 people, making it one of the largest employers in North Central Iowa. Three generations of the family are active in the business.Sukup's product line includes on-farm and commercial grain bins; portable, mixed-flow and tower dryers; centrifugal and axial fans and heaters; stirring machines; bin unloading equipment and bin floors and supports. Sukup also manufactures material handling equipment including bucket elevators, conveyors and support structures. Sukup has six distribution centers in the Midwest. Sukup products are sold throughout the U.S. and Canada, and in more than 80 other countries.