In 2008, when many small-business owners were struggling to survive, Barb Rogers and Kathy Zent swam against the current of the economic downturn and bought a portable restroom business in the booming oil fields of North Dakota. A decade later, the pair has grown the business from 250 restrooms and one truck to 3,500 units and 15 trucks covering western North Dakota and eastern Montana.
“At first, we thought it was just a sideline thing,” says Rogers, who was working as a dental hygienist at the time. “But then it just progressed, and we hired more people and bought more trucks.
