Chief Financial Officer, JPMorgan Chase
Few banking executives in the country have as much on their plates these days as Marianne Lake. Apart from her primary duties of overseeing the company's financial matters, its investor relations and its capital strategy, Lake has taken it upon herself to manage the stress-testing process, a duty many bank CFOs have handed off to subordinates. Since taking over as CFO in 2013, she's also had to deal with myriad regulatory issues, including last year's $13 billion mortgage settlement.
Yet amid all that she has to contend with in the present, Lake is constantly looking toward the future. With the blessing of the board and CEO Jamie Dimon, she is overseeing the development of a new financial infrastructure that would better integrate the finance and risk functions and give the company more accurate views of customer relationships. It's an expensive, multiyear endeavor, but one she insists is crucial to improving its modeling and risk management.
Lake is the highest-ranking woman at JPMorgan Chase and is actively engaged in helping other women there get ahead. Last year she co-founded Women on the Move, a program within the company that aims to help remove common barriers that prevent women from moving up the ladder.