Printix - Printix is a cloud-based print management platform.
Lob - A simple API to integrate print & mail solutions into your applications.
directprint.io - Printer management for Chromebooks & Windows.
PostGrid - Transform your Offline Communications. Use our fully-documented REST API to send personalized letters, checks, postcards and improve address accuracy.
ezeep - ezeep provides managed cloud printing solutions for educational institutes and SMB's.
AmazingMail - Business print-mail solution