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

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

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

AirHelp - Get paid when you're delayed!

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

CashBackAir Bot - Chatbot gets compensations in case of a flight delay