Google App Engine - A powerful platform to build web and mobile apps that scale automatically.
Heroku - Agile deployment platform for Ruby, Node.js, Clojure, Java, Python, and Scala. Setup takes only minutes and deploys are instant through git. Leave tedious server maintenance to Heroku and focus on your code.
DigitalOcean - Simplifying cloud hosting. Deploy an SSD cloud server in 55 seconds.
Dokku - Docker powered mini-Heroku in around 100 lines of Bash
Cloudways - Cloudways is a managed hosting platform for PHP based application including WordPress, Magento, WooCommerce or a custom-built site.Experience fast performance, reliability, security with 24/7 support.
Pivotal - Pivotal Software provides enterprise PaaS-based solutions.