RingCentral - RingCentral is the leading provider of cloud-based communications and collaboration solutions for small business and enterprise companies
Freshservice - Freshservice: the one-stop cloud solution for all your IT management needs.
Dialpad - Switch is a cloud-based phone system built for Google Apps users.
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
Aircall - Aircall is a call center software of a new generation designed for fast growing companies. Setup instantly and integrates to your CRMs
Zendesk - Zendesk is a beautiful, lightweight help-desk solution.