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A powerhouse of American industry, this company helped supply the cement that built parts of the Panama Canal and some of the country’s best-known early skyscrapers. Its story connects big engineering projects with the rise of manufacturing in Pennsylvania.

by Atlas Portland Cement Company
Atlas Portland Cement Company was one of the major American cement manufacturers of the late 19th and 20th centuries. Founded in Northampton, Pennsylvania, it became especially well known for producing Portland cement at a massive scale during a period when the United States was rapidly expanding its cities, factories, bridges, and public works.
The company is most often remembered for its role in landmark construction. Reliable sources describe Atlas cement as a major material in the building of the Panama Canal, and also note its use in prominent New York projects such as the Singer Building. That reputation helped make Atlas one of the best-known names in the cement business.
Its legacy is closely tied to the industrial history of eastern Pennsylvania, where cement production shaped local communities and employment for generations. Although the company itself no longer stands in the same form, Atlas Portland Cement remains an important name in the story of American construction and infrastructure.