Confluence - Confluence is content collaboration software that changes how modern teams work
Twilio - Brings voice and messaging to your web and mobile applications.
Slack - A messaging app for teams who see through the Earth!
MessageBird - Reach 7 billion phones in seconds via SMS, Chat & Voice. Try it for free and improve your communication.
Yammer - Yammer is a leading enterprise social network used by more than 200,000 companies worldwide, including 85% of the Fortune 500, to get work done smarter and faster. Sign Up Today.
Nexmo - Nexmo is a simple two way SMS API with global reach and wholesale rates