In just five years, Matt Rinka has built his firm, Rinka Chung Architecture Inc., into one of the hottest architectural firms in the area.

The Milwaukee firm is working on two major downtown projects — the Moderne apartment high-rise in the former Park East freeway corridor and Washington Square, which could be the first new downtown Milwaukee office building in years if it moves according to plan.

The firm has grown from a half-dozen people in its first three years to 17 and growing this year, increasing revenue by 50 percent or more each year.