SLM Corporation, also known as Sallie Mae, is engaged in education finance. SLM Corporation is a holding company that operates through a number of subsidiaries. The Company's primary business is to originate and hold student loans. The Company provides funding, delivery and servicing support for education loans in the United States through its participation in the Federal Family Education Loan Program (FFELP) and through offering non-federally guaranteed Private Education Loans. Sallie Mae primarily markets its FFELP Stafford and Private Education Loans through on-campus financial aid offices. The Company provides an array of credit products and related services to the higher education and consumer credit communities and others through two primary business segments: Lending business segment and Asset Performance Group Business Segment (APG) business segment.