Carnegie Steel Company

Carnegie Steel Company was a major American steel manufacturer founded by Andrew Carnegie in the late 19th century. It revolutionized steel production by adopting efficient processes like the Bessemer method, enabling mass production of high-quality steel at lower costs. This allowed the company to supply steel for railroads, buildings, and bridges, fueling America’s rapid industrial growth. Carnegie Steel became one of the largest and most profitable steel companies globally, eventually merging with others to form U.S. Steel in 1901. It played a key role in shaping America’s infrastructure and industrial economy during that era.