Detroit, Michigan United States
Quicken Loans is the fourth largest retail mortgage lender in America and the largest one online. Originally called Rock Financial Corporation, the company was founded by Dan Gilbert, Gary Gilbert, and Lindsay Gross. Based in Detroit, Michigan, the company includes QuickenLoans.com, Rock Financial, One Reverse Mortgage, and Title Source. In 2010, Quicken Loans handled nearly $29 billion in residential mortgage loans. It quickly became one of the largest mortgage businesses in the nation.