15 of the companies on this year's list are also big enough to rank on the FORTUNE 500. (
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Texas is home to the most companies on this year's list. See the fastest-growing companies near you (including interactive maps). (
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Americans' bulging waistlines have helped push this 35-year-old diet company to the top of Fortune's list this year. (
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The firms listed here also appeared on Business 2.0's list of 100 Fastest-Growing Tech Companies. (
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