Ellen Siminoff

President & CEO, Efficient Frontier
Ellen Siminoff was a founding member of the executive team at Yahoo! and retired in 2002 after six adventurous years. During her tenure, she led business development (VP, Business Development and Planning), corporate development (SVP, Corporate Development) and eventually ran the small business and entertainment business units, representing approximately 25% of Yahoo’s revenue (SVP, Entertainment and Small Business).
Before Yahoo!, Mrs. Siminoff worked for the Los Angeles Times as electronic classifieds manager, where she developed strategy and implemented the newspaper’s own on-line businesses as well as a joint venture of Career Path with 5 newspaper companies.
With her husband, David, Mrs. Siminoff founded EastNet, a global syndicate barter company distributing television programming to 14 emerging market countries in exchange for advertising time.
She graduated Stanford's Graduate School of Business with an MBA in 1993 after having completed a summer in corporate finance at Salomon Brothers.
Mrs. Siminoff worked as a human resources management consultant in New York after graduating from Princeton University with a bachelor's degree in Economics.
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