PubNub is a global Data Stream Network and realtime infrastructure-as-a-service company.
Slack brings all your communication together in one place. It's real-time messaging, archiving and search for modern teams.
Cloud communications platform for building SMS, Voice & Messaging applications on an API built for global scale.
Sigfox builds wireless networks to connect low-energy objects such as electricity meters, smartwatches, and washing machines.
Twitter is an online news and social networking service where users post and interact with messages.