GATX Corporation, founded in 1898, is the leading global railcar lessor. GATX own railcar fleets in North America, Europe, and Asia. GATX jointly own one of the largest aircraft spare engine lease portfolios in the world. GATX operate through three business segments: Rail North America, Rail International, and Portfolio Management. In the North American rail market, GATX has a fleet of more than 108,000 railcars railcars, and also owns a fleet of 601 four-axle and 28 six-axle locomotives.