Bellevue-based OfferUp, with 35 million users, is a Gold Award-winner. Plus: Silver Award-winner Vicis.

Location: Seattle | Employees: 385

OfferUp cofounders Nick Huzar, left, and Arean Van Veelen.

We all know the mother of invention. Nick Huzar’s necessity was finding a way to clear out a room for his soon-to-arrive baby girl. “My wife and I were at a spot where we wanted to have kids and when she said she was expecting, I kind of went into dad mode,” Huzar explains. “I remember standing in the doorway of this room, which was about to be my daughter’s room. It was just full of stuff and I’m thinking, ‘There’s got to be a better way to sell this stuff.’ It would take forever to sell it through existing channels.”