SolusVM - Solus Virtual Manager (SolusVM) is a powerful GUI based VPS management system with full OpenVZ...
Google App Engine - A powerful platform to build web and mobile apps that scale automatically.
VMmanager - VMmanager is a QEMU/KVM server virtualization management software, which presents perfect tools for creating virtual machines, providing VPS services, and building cloud infrastructure.
Dokku - Docker powered mini-Heroku in around 100 lines of Bash
Xen Orchestra - A complete web UI for controlling a XenServer or Xen infrastructure.
Google Cloud Functions - A serverless platform for building event-based microservices.