The Enduring Legacy of Jantzen Company: From Swimsuits to American Iconography Jantzen Company, more than just a brand name, represents a vibrant slice of 20th-century American culture. While perhaps best known for its iconic swimsuits, the company’s story is one of innovation in sportswear, masterful marketing, and a keen understanding of the evolving leisure lifestyle. Founded in Portland, Oregon, in 1907 by Carl Jantzen, the busine…