Small businesses are increasingly having to pay more for their loans, according to a new survey that examines credit constraints for more moderate ventures across the U.S. and Europe.

Only 48 percent of small- and medium-sized businesses said they can get financing at rates below 8 percent, according to a new survey from C2FO, a financial technology startup that has created a marketplace where small- and medium-sized businesses can get paid early by the large companies they supply. The inaugural such survey, released last year, showed nearly 60 percent of respondents were able to secure funding at rates below 8 percent.