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10. Qualcomm
10. Qualcomm
Fortune 500 rank: 222
2010 profit: $3.2 billion

While mobile carriers look to the future with faster 4G networks, smart phones with 3G compatibility still rule today's mobile market -- in fact, the industry crossed the 1 billion mark in terms of 3G connected devices last year. Which is why Qualcomm remains king, more than doubling the previous year's profit, mainly by making the chips that are embedded in many smartphones, including this year's iPhone 4 on the Verizon network.

NEXT: 11. Texas Instruments
Last updated May 05 2011: 2:53 PM ET
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