10. Eric Lefkofsky
« 9. Grant Achatz11. Andrew Mason » AGE: 42 OCCUPATION: Cofounder and chairman, Groupon; tech investor If you listen to the skeptics, Groupon’s business is bound to slow; the deals are crummy; the stock is going nowhere. But let’s not forget that Lefkofsky and cofounders Andrew Mason (No. 11) and Brad Keywell (No. 21) pulled … Read more
