Dovetail - Mobile Cloud-Based Dental Software
Zendesk - Zendesk is a beautiful, lightweight help-desk solution.
Slack - A messaging app for teams who see through the Earth!
Freshdesk - Freshdesk is a cloud-based customer support software that lets you support customers through traditional channels like phone and email, social channels like Facebook and Twitter, and your own branded community
Lookback - See how people really use your app
HelpScout - Help Scout is a simple, straightforward way to provide excellent support