Microsoft is a worldwide software corporation and creator of essential computer products such as the Microsoft Windows operating system and Microsoft Office.

Oracle is the world’s largest enterprise application company, offering technology solutions for every tier of business, including database, middleware, and applications.

Novell is a leading provider of infrastructure software that helps people and technology work better together by reduced complexity across diverse computing platforms.

Intel is the world’s largest chipmaker and a leader in developing, manufacturing and marketing microcomputer components for desktop and server systems.

EMC is the world's leading developer and provider of information infrastructure technology and solutions that help organizations create value from their information.

Dell offers a range of technology product categories, including mobility products, desktop PCs, software and peripherals, servers and networking products, services, and storage.

AT&T Inc. provides telecommunication products and services to consumers, businesses, and other telecommunication service providers.

Level 3 Communications is a leading international provider of fiber-based communications services. The company ranks as one of world's most connected Service Providers.