EasyChannel - Simplify your multichannel eCommerce with EasyChannel.
Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
eDesk - Business Tools, Support, Sales, and Marketing, and Help Desk
HelpSpace - The team inbox with super powers
Zendesk - Zendesk is a beautiful, lightweight help-desk solution.
Drift - A messaging app that helps you grow your business.