President and CEO The Guardian Life Insurance Company of America 2010 rank: New Age: 48
Mulligan joined the insurer as executive vice president in 2008, then quickly got promoted twice before moving into the CEO spot in July, making her one of 15 women to lead a Fortune 500
company. The fourth-largest mutual life insurer in the U.S. manages $33 billion in assets.
Network with The Guardian Life Insurance Company of America
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.