VK Live - VK Live is a Live Streaming application by VK for Android and iOS devices.
Twilio - Brings voice and messaging to your web and mobile applications.
Nonolive - Broadcasting app for game live streaming.
Plivo - Plivo simplifies your customer engagement.
ringID - RingID is the new Snapchat with extra secret features
Nexmo - Nexmo is a simple two way SMS API with global reach and wholesale rates