They came to the U.S. from China, Grenada, India, Haiti, Nigeria and the former Soviet Union. Now they own businesses in food service and product sales -- and helping other startups. See how they landed launch capital and met challenges.
Caterina Fake, the serial entrepreneur behind Flickr, Hunch and Findery talks about the pain of hiring the wrong people, being surrounded by others smarter than you and always needing to be on your toes.
There's a lot of focus on people who start their own businesses in college, but many successful entrepreneurs start their own businesses after years of work experience. Check out these blockbuster entrepreneurs who struck out on their own in their 30s, 40s and 50s.