Founders: Siamak Taghaddos, 29; David Hauser, 29
Year founded: 2003
Location: Needham, Massachusettes
2010 Revenue: $15 million
2011 Projected Revenue: Undisclosed
Siamak Taghaddos and David Hauser, met as undergrads at Babson College while both were managing businesses they started in high school. One of their biggest challenges was how to answer work calls while in class. "If a customer wanted to place an order for a product, the only number I could give them was my house line," says Taghaddos. "I had my mom picking it up, and you could hear my sisters yelling in the background."