Stronghaven Incorporated is one of the largest non-integrated manufacturers of corrugated containers in the United States. The company s network of four corrugated container plants help Stronghaven to focus on serving industrial and consumer products customers. Its primary customers demand short-run, customized corrugated products with graphics-intensive, value-added features. The company s container plants are located in Greensboro and Charlotte, N.C., Jacksonville, Fla., and Atlanta. Headquartered in Atlanta, Stronghaven is a privately owned company that employs nearly 300 people.