Back in 1930, Calumet Carton was created as a small, family-owned manufacturer of folding cartons and rigid mailing envelopes to Chicago area companies. 80 years and four generations later, Calumet is still owned by the Inwood family, but has grown into the leading producer of mailers and packaging products, serving customers from coast to coast. Whether it's a Stayflats® mailer to send important documents, a folding carton to ship parts to a dealership, or a custom printed direct mail envelope, we are your partner and packaging source. Our goal is to supply the best packaging solution while providing the best customer service. So your next order, be it 500 or 500,000... trust Calumet Carton to be your partner.