The company was founded as Atlantic Seaboard Dispatch in
Chicago,
Illinois, in 1898 by
Max Epstein to ship beer in refrigerated railcars for
Duquesne Brewing Company. In 1902, the company was renamed German-American Car Co. In 1916, it changed its name to General American Tank Car Corp. and became a
public company via an
initial public offering, and in 1933, it was renamed General American Transportation Corp. Effective January 1, 2000, General American Transportation Corporation was renamed GATX Rail Corporation, a unit of GATX Corporation. In 2004, the company sold its technology-leasing unit to
CIT Group for about $200 million in cash. In September 2013, the company sold its 37.5% interest in AAE Ahaus Alstätter Eisenbahn Cargo AG to its partner, AAE Ahaus Alstätter Eisenbahn, for €84.5 million. In March 2014, the company acquired the North American per diem boxcar fleet of
GE Capital Rail Services, consisting of more than 18,500 boxcars. In November 2018, the company announced an agreement to acquire up to 3,100 railcars from
ECN Capital for up to $229 million. In May 2020, the company sold
American Steamship Company, its dry bulk vessel business, to Rand Logistics for $260 million. In December 2020, the company acquired Trifleet Leasing Holding B.V., the fourth largest global
tank container lessor. In 2025, GATX partnered with
Brookfield Infrastructure Partners to acquire
Wells Fargo's $4.4 billion railcar portfolio. The deal is expected to close in early 2026. ==Reporting marks==