With Catz in charge of M&A, the tech company has completed 80-plus deals valued at more than $43 billion in the past six years. Recently sheís pushed to grow the hardware
business (think Sun Microsystems). In April she added the CFO title, and reported the companyís first $10 billion quarter two months later.
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.