
Age: 55
A tough business climate sent Xerox's stock back to its 2006 levels, but Mulcahy is widely lauded for pulling off a full-scale turnaround since taking over in 2001. Xerox ranks No. 3 on the Fortune 500 in terms of profit growth over five years. Ursula Burns, No. 10, is Mulcahy's heir apparent.
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Last updated October 16 2008: 10:16 AM ET