8. World Wide Technology (WWT)
2016 Rank: 12
Top Executive: James Kavanaugh, CEO
Location: Maryland Heights, Mo.
World Wide Technology, or WWT, is a $9-billion technology solution provider whose services business includes consulting lab, deployment, staffing, and lifecycle services along with supply chain management. Many of those services are based around its Advanced Technology Center, or ATC, which lets customers build a complete infrastructure for testing before cutting a purchase order.