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

YUNO - YUNO is a web data driven company focussed on solving customer challenges in web data discovery and extraction space.

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

Avaya one-X Agent - Other Customer Service

Zoho Desk - Industry's first context-aware Helpdesk Software

statuspage - A simple self-hosted status page site with an API written in Django under the BSD license.