Ellen Siminoff (born 1967,
Milwaukee,
Wisconsin) is an entrepreneur and investor. Frequently quoted in The New York Times as an Internet industry commentator,[2][3][4][5] Siminoff was named one of Forbes magazine's Masters of Information in 2005.[6]
Along with her husband,
David Siminoff, Ellen is co-founder and former chief executive officer of
Shmoop.[7]
Siminoff was a founding executive at
Yahoo!,[10] working at the company from 1996 to 2002.[11] She started by running corporate and business development, running mergers and acquisitions after the departure of J. J. Healy.[12] Later Siminoff moved to Senior Vice President of Entertainment and Small Business, with Toby Coppel and
Jeff Weiner taking over corporate development.[13] Six months later, Yahoo announced on April 13, 2002, that Siminoff decided to leave the company in order to spend more time with family, and would stay through until the end of the year.[14][12] Her departure was part of a high-profile exodus of Yahoo executives, including CEO
Timothy Koogle, CFO Gary Valenzuela, sales chief Anil Singh, head of international operations Heather Killen, and marketing head Karen Edwards.[14]
Efficient Frontier
Siminoff was former chairman and CEO of Efficient Frontier.[15] In July 2006
Bloomberg Businessweek noted that Efficient Frontier was the largest buyer of search advertising keywords on
Google,[16] and in March 2008 Silicon Alley Insider named Efficient Frontier one of the 25 most valuable privately held companies in Silicon Valley, valued at an estimated $275 million.[17]Adobe Inc. bought Efficient Frontier for $400 million in 2012.[18][19]
^Journal, Kara SwisherStaff Reporter of The Wall Street (6 January 1999).
"The Couple of Silicon Valley: They Are Definitely Connected". Wall Street Journal. Retrieved 27 May 2020. They met at Stanford Business School in 1991 and fell in love while making a killing.
^Bloom, Jeremy (2015).
Fueled By Failure: Using Detours and Defeats to Power Progress. Entrepreneur Press. p. 74.
ISBN978-1-61308-307-9. [David Karnstedt] later went on to run North American sales for Yahoo! And became CEO of a unified software advertising platform called Efficient Frontier, a company that would later sell to Adobe for $400 million.
^"Adobe Completes Acquisition of Efficient Frontier". Adobe. 2012-01-16. Retrieved 27 May 2020. Adobe Systems Incorporated (Nasdaq:ADBE) today announced the completion of its acquisition of privately held Efficient Frontier
^Anderson, Will.
"SolarWinds' board transformed in wake of private equity buyout". Austin Business Journal. Retrieved 27 May 2020. Former board members who are no longer directors include: [...] Ellen Siminoff, president and CEO of California educational website Shmoop University