Sioux Corporation designs and manufactures industrial cleaning, water heating, and steam generating equipment. It offers a standard line of pressure washers, steam cleaners, combination units, steam generators, water heaters, water chillers, and custom equipment. Sioux focuses on all-electric cleaners that do not use fuel and produce no fumes. It also offers explosion-proof equipment for hazardous environments. Other products include engine-driven hot water washers, cold water washers, steam generators, and water heaters. Sioux prides itself on its engineering capabilities and provides custom equipment for unique applications.