Microsoft ... Microsoft Corporation is the worldwide leader in software, services, and Internet technologies for personal and business computing.

CBeyond ... CBeyond provides local and long distance telephony services, high-speed, T-1 Internet access and Internet-based applications.

3CX ... 3CX is a worldwide leader in IP PBX software for Windows.

Dell ... Dell is a leading global computer systems and services company.

Symantec ... Symantec Corp. delivers software and services that help customers protect their infrastructure, information and interactions.