B. Kuppenheimer & Co., or simply Kuppenheimer, was a men's clothing manufacturing and retail operation based in Chicago, Illinois and later Atlanta, Georgia.

Hart Schaffner Marx is an American manufacturer of ready-to-wear menswear owned by New York–based Authentic Brands Group. With origins dating to a family business in 1872 Chicago and incorporated in 1911 as "Hart Schaffner & Marx", the company is now located in Des Plaines, Illinois.