Docsmit Mail VS Ballantine

Lob - A simple API to integrate print & mail solutions into your applications.

Every Door Direct Mail - Every Door Direct Mail is a Marketing Resource Management Service from Vya that enables you to provide customized and meaningful direct mail campaigns each time.

Stannp - Stannp helps to create and send postal Direct Mail campaigns: letters or postcards.

Mail Shark - Mail Shark is one of the leading platforms that offer Marketing Programs, Printing, and Direct Mail Advertising services to customers all across the globe.

PostGrid - Transform your Offline Communications. Use our fully-documented REST API to send personalized letters, checks, postcards and improve address accuracy.

PostcardMania - PostcardMania specializes in results-driven multichannel marketing, offering simple and streamlined solutions that include everything from custom campaigns to plug-and-play automations that trigger highly personalized mail pieces.