AirHelp - Get paid when you're delayed!

HelpScout - Help Scout is a simple, straightforward way to provide excellent support

Service - Customer service issues solved for you, on demand, for free.

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

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

AirAdvisor - AirAdvisor is an airline compensation company advocating for air passenger rights