Houseparty - Brining empathy to online communication.
Zendesk - Zendesk is a beautiful, lightweight help-desk solution.
Google Duo - Google's answer to Facetime, high-quality video calling on iOS and Android.
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
Tribe - Create highly targeted Twitter ad campaigns in 5 mins
HelpScout - Help Scout is a simple, straightforward way to provide excellent support