Sallie Mae is the nation's leader in offering private loans. It is a private student loan company that provides loans to full-time and part-time students. It was established in 1972 and is headquartered in Newark, Delaware. Apart from student loans, it also offers credit cards, college planning tools, retail banking, etc. The best thing about Sallie Mae is that it provides loans for part-time and non-U.S. citizens, which most lenders don't.