|Industry:||Banking / Financial Services|
Ally Financial Inc. , previously known as GMAC Inc. , is a bank holding company headquartered in Detroit, Michigan, United States at Tower 200 of the Renaissance Center. With more than 15 million customers worldwide, Ally Financial provides a range of financial services including auto financing, insurance, mortgage services, and online banking. In 2009, Ally employed 18,900 people. In 2008, the firm provided financing to 75% of the 6,450 GM dealers.