CloudStack!

OpenShift is Red Hat's free, auto-scaling Platform as a Service (PaaS) for applications. As an application platform in the cloud, OpenShift manages the stack so you can focus on your code.

Google App Engine is a free* platform for developing and hosting web applications in Google-managed data centers. App Engine offers fast development and deployment; simple administration, with no need to worry about hardware, patches or backups; and effortless scalability.

OpenStack OpenStack is a global collaboration of developers and cloud computing technologists producing the ubiquitous open source cloud computing platform for public and private clouds. The project aims to deliver solutions for all types of clouds by being simple to implement, massively scalable, and feature rich. The technology consists of a series of interrelated projects delivering various components for a cloud infrastructure solution.

Amazon Elastic Compute Cloud (Amazon EC2) is a web service that provides resizable compute capacity in the cloud. It is designed to make web-scale computing easier for developers.

Google Compute Engine is not just fast. It’s Google fast. In fact, it’s a class of fast that enables new service architectures entirely..

Exoscale is an IaaS cloud platform for individuals, developers and businesses worldwide.Launched in 2011, it is headquartered in Switzerland, with several availability zones across Europe: * Genva* Zurich* Frankfurt* Vienna

Virtkick makes VPS hosting easy for your clients with the lightweight and user-friendly approach. Whether you're a small data center, a game hosting company or a huge enterprise, Virtkick is easy to plug-in and make the most of your hardware without extra costs.

With the CoreCluster you can create private clouds, like Amazon’s EC2, but based on your own hardware. All what is necessary is some hardware with Ubuntu or Debian operating systems. Users can create theirs own virtual machine instances and manage whole virtual environment, without any hardware reconfiguration. Software supports many additional modules, which extends its base functionality.

CloudVPS is the number one cloud provider in the Netherlands. Whether you need a single machine or a complex load-balanced cluster, our flexible cloud lets you create the Virtual Private Servers (VPSes) and Cloud Storage you need quickly and securely. We are leading the market with our implementation of the revolutionary OpenStack technology and in the area of cloud certification.

Eucalyptus is open source cloud software for building AWS-compatible private and hybrid clouds.

Rackspace US, Inc. (NYSE: RAX) is an IT hosting company based in San Antonio, Texas. The company also has offices in Australia, the United Kingdom and The Netherlands[2] and data centers operating in Texas, Illinois, Virginia, the United Kingdom, and Hong Kong in late 2008. The company's email and apps division operates in Blacksburg, VA.

Vmango is a virtual machines management web interface written using Go.The main goal of project is not to provide a hypervisor configuration tool, because that problem already solved by many configuration management systems like Ansible or Puppet, but provide a convenient way to manage virtual machines on existing hypervisors.

Built from the ground up by geeks for geek, ServerBeach delivers powerful dedicated servers, convenient server management tools, and 24x7x365 LifeGuard Support™ all on our rock-solid SuperNetwork™ backbone. If you want complete control and root access to your dedicated server without any managed support services, ServerBeach is right for you. Customers include Wordpress.com, Dogster, and Urban Spoon.

V2 Cloud lets you rent virtual desktops online in minutes.