http://www.ceo.com/news_and_insights/which-schools-produce-the-most-ceos-infographic/#ceoid=arky996
Thanks for sharing blue85. There is Harvard, and then there is everybody else! Nobody comes close really.
Sadly, you are correct. Harvard, Penn and Columbia, on the business side, stand out. A few of the smaller schools like Dartmouth also have great networks.
Note the article refers to grad school alumni.