Since its launch in 2009, Motiv Power Systems has grown 50x--and it isn't slowing down. Co-founder Jim Castelaz talks about the grind, hustle, and payoff of transforming gas-powered vehicles into clean tech.
Ever since Greg Pekarsky and Brad Robins founded Vesta Preferred Realty, the two have been working nonstop. Finding balance and a strong support network has helped them keep growing their Chicago-based start-up.
Lara Miller started her women's clothing business in 2005. Her sophisticated, symmetrical designs are now sold in more than 50 stores around the world. But she faced plenty of ups and downs along the way.