American Locomotive Company

The American Locomotive Company (Alco), founded in 1901, was a major American manufacturer of steam and early diesel-electric locomotives. Based in Schenectady, New York, it supplied trains for freight and passenger services across North America. Known for innovation and quality, Alco's locomotives were widely used until the mid-20th century when the industry shifted toward diesel power, leading to the company's decline. Today, Alco is remembered for its significant role in railroad history, producing durable and reliable machines that helped shape modern freight and passenger transportation.