Client Services: 102 Client Services Inc.

2015 revenue: $176 million -3.8% As the economy improves, credit delinquency rates fall. That's good for the economy at large, and for individuals who are paying on loans and other bills, but it slows growth at receivables and collections firms such as Client Services, where revenue dipped almost 4 percent in 2015. Nonetheless, CEO Brad Franta said, "Our margins improved versus fiscal 2014 through technology advances which improved efficiencies." What's more, borrowing on credit cards...