Harsco Corporation is a diversified, worldwide industrial company based in the United States. Harsco operates in 35 countries and employs approximately 12,300 people worldwide. The company provides industrial services and engineered products that serve large industries, including steel, railways, and energy. The 2013 revenues totaled $2.8 billion, 60% of which were generated internationally. Harsco is headquartered in Camp Hill, a suburb of Harrisburg, Pennsylvania. Harsco was founded in 1853 as The Harrisburg Car Manufacturing Company and became the Harrisburg Steel Corporation in 1935. Following a series of acquisitions, the company became Harsco Corporation in 1956. Harsco operates three primary businesses.