DigitalOcean - Simplifying cloud hosting. Deploy an SSD cloud server in 55 seconds.
Google App Engine - A powerful platform to build web and mobile apps that scale automatically.
CloudVPS - VPS Hosting in a reliable, scalable and fast cloud | CloudVPS
Dokku - Docker powered mini-Heroku in around 100 lines of Bash
Microsoft Azure - Windows Azure and SQL Azure enable you to build, host and scale applications in Microsoft datacenters.
Google Cloud Functions - A serverless platform for building event-based microservices.