Welcome to the National Postal Forum Exhibitor Portal!
The Exhibitor Portal is a new online tool for:
If your company is new to the National Postal Forum and you would like to request exhibit space please choose "Buy a Booth" from the menu on the right and then follow the instructions to "create your account" that appear below.
If you are returning to make a payment or to edit your Online Booth information, select "Exhibitor Login" and enter the Passcode you received after creating your account.
Need more information?
Your Partner in Mailing and Packaging Solutions since 1930.
Back in 1930, Calumet Carton started as a small, family-owned manufacturer of folding cartons and rigid mailing envelopes selling to Chicago area companies. 85 years and four generations later, Calumet is still owned by the Inwood family, but is known in the industry as the inventor of the Stayflats® Mailers and has grown into a leading producer of stock and custom mailers and folding cartons, serving customers worldwide.
Brands: Stayflats® Mailers
Stayflats Plus® Mailers
Stayflats Lite® Mailers
Stayflats Utility® Mailers
NEW! Stayflats Fit™ Mailers
Express Pouch Mailers