Grain Systems Inc

With only a 5,000-square-foot garage and three workers in 1972, GSI began manufacturing corrugated steel storage bins and selling them regionally. The company has since expanded its operations to become a single-source manufacturer of grain storage, drying and handling products in more than 70 countries worldwide. Its specialties include fabricating and distributing steel farm storage bins and silos, as well as advanced grain dryers and material handling systems, including portable augers, sweeps, scalpers, commercial bucket elevators and chain conveyors. GSI, a division of The GSI Group, maintains its headquarters in Assumption, Ill.