Zoom - Equip your team with tools designed to collaborate, connect, and engage with teammates and customers, no matter where you’re located, all in one platform.
Nexmo - Nexmo is a simple two way SMS API with global reach and wholesale rates
Whereby (formerly appear.in) - Collaborate from anywhere - video meetings with no downloads
MessageBird - Reach 7 billion phones in seconds via SMS, Chat & Voice. Try it for free and improve your communication.
DISQUS - Disqus is a global comment system that improves discussion on websites and connects conversations across the web.
Plivo - Plivo simplifies your customer engagement.