Zendesk - Zendesk is a beautiful, lightweight help-desk solution.

Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.

Froged - One click solution providing easy-to-use marketing, sales and support services to turn website visitors into happy customers.

HelpSpace - The team inbox with super powers

Drift - A messaging app that helps you grow your business.

HootSuite - Enhance your social media management with Hootsuite, the leading social media dashboard. Manage multiple networks and profiles and measure your campaign results.