Red Hat
Mark Enzweiler
Senior Vice President of Global Channel Sales and Alliances

Red Hat is quickly becoming a force in the market, not just with its open-source Linux, but also with its middleware, data storage, virtualization and cloud computing software. And it's also becoming a force in the channel, which now accounts for about 70 percent of Red Hat's sales (up from 53 percent in fiscal 2008).

Enzweiler is the top channel exec at Red Hat: The company is searching for a replacement for Roger Egan, vice president of North America channel sales, who left the company in January. Enzweiler, meanwhile, has focused on bolstering the company's partner enablement offerings, including free training and certification, and growing channel investments around storage and cloud technologies.