NCO Group, Inc., based in Horsham, Pennsylvania, United States, is a business process outsourcing company and collection agency that provides accounts receivable management, customer relationship management and back office solutions for its clients. Founded in 1926, it was a publicly traded company from 1996 through 2006, when it was purchased by One Equity Partners (OEP), the private investment arm of JP Morgan Chase & Co., and other co-investors.