Clever Cloud - Clever Cloud helps developers deploy and run their apps with bulletproof infrastructure, automatic scaling, fair pricing and other cool features.
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.
Google App Engine - A powerful platform to build web and mobile apps that scale automatically.
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.
Dokku - Docker powered mini-Heroku in around 100 lines of Bash
Pivotal - Pivotal Software provides enterprise PaaS-based solutions.