Electro-Motive Diesel

Electro-Motive Diesel
Formerly	Electro-Motive Engineering Corporation (1922); Electro-Motive Company (1922–30); Electro-Motive Corporation (1930-1940); Electro-Motive Division (1941-2004);
Company type	Subsidiary
Industry	Transport
Founded	August 31, 1922, in Cleveland, Ohio, United States
Founder	Harold L. Hamilton; Paul Turner;
Headquarters	La Grange, Illinois, United States
Products	Locomotives
Number of employees	3,260 (2008)
Parent	Progress Rail; (2010–present); Berkshire Partners; (2005–2010); General Motors; (1930–2005);

Electro-Motive Diesel (abbreviated EMD) is a brand of diesel-electric locomotives, locomotive products and diesel engines for the rail industry. Formerly a division of General Motors, EMD has been owned by Progress Rail since 2010.

Electro-Motive Diesel traces its roots to the Electro-Motive Engineering Corporation, founded in 1922 and purchased by General Motors in 1930. After purchase by GM, the company was known as GM's Electro-Motive Division. In 2005, GM sold EMD to Greenbriar Equity Group and Berkshire Partners and, in 2010, EMD was sold to Progress Rail, a subsidiary of the heavy equipment manufacturer Caterpillar. After the 2005 sale, the company was renamed to Electro-Motive Diesel.

EMD's headquarters and engineering facilities are based in McCook, Illinois, while its final locomotive assembly line is located in Muncie, Indiana. EMD also operates a traction motor maintenance, rebuild, and overhaul facility in San Luis Potosí, Mexico.

As of 2008, EMD employed approximately 3,260 people, and in 2010 it held approximately 30% of the market for diesel-electric locomotives in North America. Its only significant competitor is Wabtec-owned GE Transportation, which held up to 70% market share of the North American market in 2007.