FORTUNE's annual ranking of America's leading businesswomen

This year's list features seven newcomers hailing from a broad swath of industries.
Rank ▾ Name Company Age
21 Gisel Ruiz Wal-Mart Stores 42
22 Carrie Tolstedt Wells Fargo 52
27 Mary Barra GM 50
40 Karen Licitra Johnson & Johnson 53
45 Gracia Martore Gannett Co. 61
46 Laura Lang Time Inc. 56
47 Heather Bresch Mylan 43
From the October 8, 2012 issue
How we pick the Power 50
The list is compiled by FORTUNE editors, who consider four criteria: the size and importance of the woman's business in the global economy, the health and direction of the business, the arc of the woman's career (resume and runway ahead), and societal and cultural influence.