The Power 50

Business has its ups and downs, and so, naturally, do women in business. (Bye-bye, Martha!) But the story of this list is one of achievement: The credentials of these women, including the 13 newcomers, are the strongest yet.

Diane Greene
22. Diane Greene
CEO
VMware (VMW)
2006 rank:  New
Age: 51

Greene has run VMware since founding it in 1998 with her husband, Mendel Rosenblum. She sold the company to EMC in 2004 for $625 million, then stayed on to continue running it. Still majority-owned by EMC but spun off in an August IPO, VMware is the fastest-growing and most influential enterprise software company Silicon Valley has seen in a decade - and worth a cool $26 billion.

Indra Nooyi

Anne Mulcahy

Meg Whitman

Angela Braly

Irene Rosenfeld

Pat Woertz

Susan Arnold

Oprah Winfrey

Andrea Jung

Brenda Barnes

Ursula Burns

Sallie Krawcheck

Ann Livermore

Christine Poon

Anne Sweeney

Zoe Cruz

Ginni Rometty

Judy McGrath

Ann Moore

Sue Decker

Susan Desmond-Hellmann

Diane Greene

Amy Brinkley

Susan Ivey

Ellen Kullman

Charlene Begley

Heidi Miller

Cece Sutton

Sheryl Sandberg

Abigail Johnson

Carol Meyrowitz

Carrie Cox

Linda Dillman

Shelly Lazarus

Mary Sammons

Lisa Weber

Claire Babrowski

Joanne Maguire

Colleen Goggins

Kathleen Murphy

Dawn Hudson

Liz Smith

Cathleen Black

Pam Nicholson

Melanie Healey

Amy Pascal

Deirdre Connelly

Jan Fields

Julia Stewart

Cathie Lesjak
25 Highest-paid women Which corporate women raked it in last year - and how much did they earn? (more)
50 Global leaders See which women executives are on top of the world. (more)
6 CEOs-to-be These executives, all on this year's Powerful Women list, are clearly capable of leading a major company someday. (more)