ACE Rent a Car is a privately held business founded in 1966 by Robert Sorenson. Originally, Sorenson owned two car washes in Indianapolis and added 10 Volkswagens to meet the rental needs of the surrounding neighborhoods. The rental business grew organically. Soon he found himself operating at the Indianapolis International Airport, renting vehicles as part of the now defunct American International franchise system.^{[citation needed]}

By 1986, the operation had grown to multiple locations throughout Indiana and the Chicago area. Sorenson left the American International system and formed the ACE Rent a Car chain. A primary motivation for this change was the need to be represented on the emerging Global Distribution Systems (GDS), such as Sabre, PARS, and Apollo. Although ACE was a relatively small company, it became a leading adopter of GDS technology.

Today, the ACE car rental chain consists of 10 company-owned outlets and over 200 affiliated locations worldwide.^[1] The company offices are located in Indiana (Indianapolis, Bloomington, Greenwood and Lafayette) and Illinois (Chicago O'Hare and Elmhurst). The affiliated locations include 70 airports. In addition to serving the major US and Canadian airports, the ACE system has a concentration on leisure destinations in the Caribbean, Mexico, and Central America.

In 2011, ACE was ranked highest in customer satisfaction in the J.D. Power & Associates annual industry consumer survey. ^{[2] [3] [4]}

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• Auto Rental News