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Companies

A large group of employees posing for an outdoor photo in front of their building
Littleton Coin Company

The mailing industry consists of all the organizations and companies that communicate with customers and constituents through the U.S. Mail on a large scale — from direct marketers, to publishers, to nonprofits, to public entities — as well as all the businesses that help prepare mail, such as ad agencies, print shops, software vendors and transportation providers.

The following companies have joined the National Postal Museum to help tell the story of America’s Mailing Industry.

America’s Mailing Industry