Vice chairman, executive committee, office of the chairman Johnson & Johnson 2010 rank: 12 Age: 52
In December longtime J&J pharmaceuticals chief McCoy took on the health giantís troubled consumer business, along with corporate affairs. She oversees 60,000 employees. CEO
Bill Weldon also named her vice chair, fueling fresh speculation that sheís his likely successor.
The list is compiled by FORTUNE editors, who consider four criteria: the size and importance of the womanís business in the global economy, the health and direction of the
business, the arc of the womanís career (resume and runway ahead), and societal and cultural influence.