No. 23: AT&T

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No. 23: AT&T

With its Apple iPhone deal, AT&T is the envy of wireless telecom. A Starbucks venture makes it the biggest U.S. provider of Wi-Fi hotspots. Its focus now: smartphones, digital cameras, and netbooks to link the Web to mobile users anywhere. (AT&T CEO, Randall Stephenson, pictured here.)

Company Info on AT&T