OpenShift - OpenShift gives you all the tools you need to develop, host and scale your apps in the public or private cloud. Get started today.
Socket.io - Realtime application framework (Node.JS server)
Docker - Docker is an open platform that enables developers and system administrators to create distributed applications.
Pusher - Pusher is a hosted API for quickly, easily and securely adding scalable realtime functionality via WebSockets to web and mobile apps.
Plesk - Plesk puts all the automation, security, and technical tools an IT professional needs in one simple and easy to use dashboard.
Ably - Serious realtime infrastructure