AECOM
American multinational engineering firm

AECOM (, ay-ee-KOM; formerly AECOM Technology Corporation) is an American multinational infrastructure consulting firm headquartered in Dallas, Texas.
The company's official name from 1990 to 2015 was AECOM Technology Corporation, and is now AECOM. The company is listed on the New York Stock Exchange (NYSE) under the ticker symbol ACM.
As of 2023, AECOM had approximately 51,000 employees, and was number 291 on the 2023 Fortune 500 list.
History
1910–1990
AECOM traces its origins to Kentucky-based Ashland Oil & Refining Company, which in turn grew out of Swiss Drilling Company, founded in Oklahoma in 1910 by J. Fred Miles. He gained control of some 200,000 acres and formed Swiss Oil Company in Lexington. In 1924, Miles launched a refining operation called Ashland Refining Company, headed by Paul Blazer. While the parent company struggled, leading to the ouster of Miles, Ashland prospered under Blazer's leadership, and in 1936, he was named chief executive officer of the reorganized company, Ashland Oil & Refining Company. In 1966, Ashland acquired Warren Brothers and became involved in highway construction and construction materials. The company was able to take advantage of refinery byproducts to produce asphalt. Ashland grew into one of the nation's major road-construction firms, and laid a foundation for AECOM. Through a series of acquisitions and technological developments, Ashland grew to include chemical, petrochemical, highway construction, and construction materials firms within its realm, laying the groundwork for a management buyout of Ashland Technology in 1985.
In the 1970s, Ashland Oil & Refining became Ashland Oil, Inc.
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