GATX Corporation leases, operates and manages long-lasting, widely used assets in rail, marine and industrial equipment markets. GATX also invests in joint ventures that complement existing business activities. The company is a leader in leasing transportation assets and controls a large railcar fleet. The company owns fleets in North America, Asia and Europe. The company also operates the largest fleet of U.S.-flagged vessels on the Great Lakes and, jointly with Rolls-Royce plc, is the owner of one of the largest aircraft spare engine lease portfolios globally.