Breakout Companies of 2010

Courtesy Company
1 of 11

Groupon
Chicago
Founded in 2008

Why they’re on the list: For turning down $6 billion from Google

Few start-ups have experienced the kind of immediate breakout success that Groupon has. Ever. In just two years, the company, which partners with businesses to offer deal-of-the-day coupons, has added some 2,700 employees and expanded into 29 different countries – while earning an estimated $2 billion in annual revenue – eye-popping statistics that have some calling Groupon the fastest-growing company of all time. The company recently earned even more notoriety after Google reportedly flirted with acquiring it for a price tag of some $6 billion. Perhaps even more impressively, Groupon turned the offer down, indicating that it has even bigger goals in mind.