Quicken Loans Inc., headquartered in Detroit, Michigan was, as of 2012, the largest online retail mortgage lender (NMLS #3030) and the second largest overall retail lender in the United States. The company consists of Quicken Loans, One Reverse Mortgage, and Title Source, a mortgage settlement service provider. Quicken Loans closed more than $70 billion in home loan volume in 2012, a 133 percent increase over the previous record of $30 billion set in 2011. The company also doubled its growth.

The company employs 10,000 people, with more than 8,000 now working in the city of Detroit and has been listed for ten consecutive years as one of the top-30 companies on Fortune magazine's annual "100 Best Companies to Work For" list.