Den Hartog Industries, Inc. operates four manufacturing divisions including Rotational Molding, Blow Molding, Injection Molding, and Metal Fabrication. Custom and proprietary products that serve the agricultural, industrial, medical, marine, and consumer markets are manufactured at the Hospers, Iowa based manufacturing facility. Ace Roto-Mold polyethylene tanks, Ace Float Drums, Ace Dock Accessories, and Sowjoy hog confinement equipment are proprietary brands manufactured by Den Hartog Industries.
