Atlanta-based Equifax rode the mortgage refinance boom and businesses looking to identify new customers to post a 14 percent increase in operating revenue in second quarter.

Revenue from Equifax's mortgage business, which banks use for credit verification and risk management, grew 51 percent compared to second quarter 2011.

The information firm said its U.S. Consumer Information Solutions business was up 19 percent, as companies turned to Equifax for more information about current and potential customers.

Equifax Chairman and CEO Rick Smith said in a news release mortgage activity remains strong, but the company expects it to slow later this year.

Jeff Dodge,Equifax's head of investor relations, said the company is not seeing broad growth in consumer spending, but the company is seeing revenue increase aggressive selling of products to consumers and corporate clients. Sales of personal identity protection and other products helped Equifax see a 12 percent increase in its North American Personal Solutions business.

Net operating income, not including operations Equifax once counted in Brazil, was $76.4 million, up 23 percent over a year ago. Earnings per share were 74 cents, up 21 percent. The company said earnings per share on an operating basis is expected to be 71 to 74 cents in third quarter.