24. Franz Koch
Franz Koch
CEO, Puma
Age: 32
Industry: Apparel

Koch beat out a field of 100 candidates to become CEO of the iconic German sportswear brand. If he seems young for the job, consider this: His predecessor, Jochen Zeitz, became CEO when he was just 30. Zeitz, who went on to lead Puma for 18 years, says he picked Koch, previously the head of global strategy at the business, because of his "exceptionally analytical yet most pragmatic mind" (yes, they're both German). Koch has the right credentials to lead the business: A former professional field hockey player, he's a surfing, biking, and skiing enthusiast.


Last updated October 25 2011: 5:11 PM ET
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Ones to watch

In addition to Fortune's 40 Under 40 list, we're also keeping our eye on these 20 innovators, young guns from a wide range of industries and backgrounds.

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