Operational since 1965, United Printing & Mailing is one of Arizona s leading direct mail manufacturers. Based in Phoenix, Ariz., the company offers customers a wide array of mailing services, such as data acquisition, data management, variable data printing and on-site USPS MERLIN mail verification. In addition, it provides graphic design and in-house web, sheet-fed/digital printing. Some of United Printing & Mailing s products include postcards, letters and envelopes, self/snappak mailers as well as other type of mailers, such as trifold brochures, envelope invitations and flyers.