Waupaca Foundry, Inc., North America's leading supplier of iron castings to the automotive, commercial vehicle, agriculture, construction, and industrial markets, produces gray iron and ductile iron castings using state-of-the-art processes and technology. The manufacturer also specializes in precision machining and assembly. Waupaca Foundry is Headquartered in Waupaca, Wisconsin and operates five iron foundries located in Waupaca, Wisconsin, Marinette, Wisconsin, and Tell City, Indiana. The company operates braking component machining and assembly in Waupaca, Wisconsin. Waupaca employs approximately 4,000 people.