Chairman, president, and CEO Wellpoint 2010 rank: 4 Age: 50
Bralyís reach is unquestionable: With 34 million members, health insurer WellPoint touches one in nine Americans covered. Now sheís tapping into the Medicare market with the
purchase of senior health care provider CareMore. Her challenge: translating customer growth into higher profits.
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.