Chicago investor is cofounder and 30% owner of the fastest-growing company ever, Web phenom Groupon, which updates its online audience about deep discounts on products and services. His venture fund, Lightbank, has stakes in 11 companies, including two now public ones: Innerworkings and Echo Global Logistics. As for being outed as an almost-billionaire: “It’s a good thing and a bad thing.”
Net Worth: $750 million
Eric Lefkofsky
