Amazon EC2
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.
Amazon EC2’s simple web service interface allows you to obtain and configure capacity with minimal friction. It provides you with complete control of your computing resources and lets you run on Amazon’s proven computing environment. Amazon EC2 reduces the time required to obtain and boot new server instances to minutes, allowing you to quickly scale capacity, both up and down, as your computing requirements change. Amazon EC2 changes the economics of computing by allowing you to pay only for capacity that you actually use. Amazon EC2 provides developers the tools to build failure resilient applications and isolate themselves from common failure scenarios.
Terremark / vCloud Express
Terremark brings the power of the cloud to the enterprise with solutions built to integrate seamlessly into your existing I.T. infrastructure, compatible with your existing applications, and conforming to your policies and compliance needs, helping you move faster, respond quicker, and accelerate innovation. Terremark’s Enterprise Cloud gives you precise, dynamic allocation of computing resources with the scale, performance and security to handle enterprise-wide applications. Large organizations, IT executives and multi-site teams will appreciate the robust solution for its multi-user capacity, dedicated resource pool architecture and role-based security model as well as private network connectivity and physical device integration.
http://vcloudexpress.terremark.com/
Eucalyptus
Eucalyptus is the world’s most widely deployed cloud computing software platform for on-premise (private) Infrastructure as a Service clouds. It uses existing infrastructure to create scalable and secure AWS-compatible cloud resources for compute, network and storage.
Slicehost / Rackspace
Create Cloud Virtual Servers in minutes and pay per usage. Get a Windows or Linux Cloud Server with root access. 1 to 50 servers in minutes. Choose a server size and pay for what you use. Accessible via online control panel and open API. Easily Control Your DNS. Fully customizable with root access. Fanatical Support always included. No long-term contracts, pay for what you use. Up to 30 GB servers.
DuraCloud
DuraCloud makes it easy to store and do more in the cloud. Our service makes the preservation of your content simple and cost effective. DuraCloud is the only service that makes it easy to move copies of your content into the cloud and store them with several different providers, all with just one click. We eliminate the risk of storing content with a single cloud provider by making it easy to move and copy files of any shape or size.
SoftLayer
Deployed in hours, not days, each dedicated server comes with the industry’s most complete selection of services with the opportunity to choose additional hardware upgrades and service options.
http://www.softlayer.com/cloudlayer/computing/
MediaTemple
Media Temple hosts web sites. Big and Small. For years we’ve taken complex technology and simplified it for the everyday web site owner. Our products are designed to be powerful, affordable and relevant. Please take a look around; perhaps (mt) is a good choice for your next project.
http://mediatemple.net/webhosting/dv/pricing.php
GoGrid
GoGrid cloud hosting allows you to build scalable cloud infrastructure in multiple data centers using dedicated and cloud servers, elastic F5 hardware load balancing, and cloud storage with total control through automation and self-service.
http://www.gogrid.com/cloud-hosting/cloud-hosting-pricing.php
JoyentCloud
The Fastest and Easiest Way to Deploy and Scale Node.js Apps in the Cloud
http://www.joyentcloud.com/lpages/node/
AT&T Cloud Architech
Now, complicated configurations are a thing of the past. With AT&T Cloud Architect, there’s an automated, standardized and fast way to pick, provision and deploy servers over the web within minutes or hours, not days. There’s no need to buy or build out your own on-premises infrastructure.
IBM Cloud Computing
More for companies than individuals, IBM offers a cloud “IBM SmartCloud is our family of enterprise-class cloud computing technologies and services for securely building and using private, public and hybrid clouds.”
http://www.ibm.com/cloud-computing/
IBM Cloud Pricing Calculator: http://www-935.ibm.com/services/us/en/cloud-enterprise/tab-pricing-licensing.html
Windows Azure
Windows Azure is an open and flexible cloud platform built for you.
Earthlink Cloud
Cloud computing company powering today’s IT with cloud hosting, dedicated server, cloud server backup, hosted exchange & other cloud IT services.
http://www.earthlinkcloud.com/
LeaseWeb
LeaseWeb is an industry leader in hosted IT infrastructure, specialized in dedicated servers, colocation, cloud hosting and custom solutions.
Google Storage
More of an S3 alternative than an EC2 alternative, there is Google Storage. “Google Storage is based on the company’s own infrastructure. Pricing is calculated on usage of space and bandwidth.”
https://developers.google.com/storage/
Nirvanix
Nirvanix offers a fully managed cloud storage service designed from the ground up for the enterprise.
http://www.nirvanix.com
PSSC Labs
PSSC Labs has delivered over 1500 High Performance Computing or HPC clusters, Linux clusters and clouds on high density, eco friendly and energy efficient platforms.