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15. Wendy Clark
Senior vice president, integrated marketing and communications, Coca-Cola
Age: 39
Rank change: Up
Industry: Consumer products

Two years into the job (she reports to Coke CMO Joe Tripodi), Clark orchestrated Coca-Cola's sponsorship of the 2010 Winter Olympics and the FIFA World Cup. The latter was Coke's biggest integrated marketing campaign ever, spanning 160 countries and a budget in the hundreds of millions. Meanwhile, she continues to oversee messaging for 500 brands in 200 countries and is gearing up for the next big event: the 2012 London Olympics.

Comfort clothes: Clark travels for business in jeans and flip-flops. "Really, who wants to travel in a suit?"

NEXT: 16. Elon Musk
Last updated October 14 2010: 1:25 PM ET
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