AECOM is an American multinational infrastructure consulting firm headquartered in Dallas, Texas. The company's official name from 1990–2015 was AECOM Technology Corporation, and is now AECOM. The company is listed on the New York Stock Exchange under the ticker symbol ACM and on the Frankfurt Stock Exchange under the ticker symbol E6Z. In 2018 AECOM along with 91 additional Fortune 500 companies had "paid an effective federal tax rate of 0% or less" as a result of Donald Trump´s Tax Cuts and Jobs Act of 2017. As of 2023 AECOM had approximately 51,000 employees, and was number 291 on the 2023 Fortune 500 list. Wikipedia