Company: Archer Daniels Midland
Fortune 500 rank: 39
First year as CEO: 2006
Most Powerful Women rank: 3
The processor of agricultural commodities like oil seeds, corn, and wheat boosted fiscal 2011 sales thanks to increased demand. The onetime accountant and former oil executive has pushed into developing regions such as South America, with plans to build a biodiesel plant in Brazil and a soybean facility in Paraguay.
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