HeidelbergCement is a German multinational building materials company headquartered in Heidelberg, Germany. It is currently (as of 2010) the world's third largest cement producer, the market leader in aggregates and fourth in ready-mix concrete. In 2010 the company produced around 78 million tonnes of cement. The company employs some 53,000 people at 2,500 locations in more than 40 countries with an annual turnover of approximately EUR 11 billion.

The company was founded on 5 June 1874 by Johann Philipp Schifferdecker, at Heidelberg, Baden-Württemberg, Germany. It was making 80,000 tonnes per annum of Portland cement in 1896. Numerous other small companies were taken over from 1914 onwards, and by 1936 it was making one million tonnes per annum. Activities abroad began with the acquisition of part of Vicat Cement, France. Shipments reached 8.3 million tonnes in 1972. In 1977, a massive program of purchases in North America began with the acquisition of Lehigh Cement. In 1990, expansion in eastern Europe began. In 1993, it acquired part of SA Cimenteries CBR of Belgium which already had a major multinational operation. Since then it has continued to expand, with complete buy-out of CBR, and purchases in eastern Europe and Asia. A major step was the acquisition of Scancem in 1999, with operations in Northern Europe as well as Africa. Indocement in Indonesia was included in 2001. In 2007 the British company Hanson was acquired, a transaction worth 7.85 million pounds (15,8 million $), which gave the company a stronger market position in UK and US, and turned HeidelbergCement into the world's leading producer of aggregates.