Martin Marietta Materials (NYSE:MLM) is a leading supplier of aggregates and heavy building materials in the United States. The company mines, produces, and distributes essential construction materials including crushed stone, sand, gravel, ready-mixed concrete, and asphalt. Its products are used in a wide range of infrastructure projects such as highways, bridges, airports, and commercial developments, as well as in residential construction and environmental restoration.
In addition to its core aggregates business, Martin Marietta offers a variety of cementitious and performance materials tailored to specific project requirements. These include specialty cements, recycled concrete products, and value-added services like material testing and technical support. The company’s integrated operations enable it to serve customers with consistent quality, reliable delivery, and technical expertise throughout the construction lifecycle.
Martin Marietta Materials operates an extensive network of quarries, sand pits, distribution terminals, and ready-mix plants across more than 30 U.S. states, as well as selected sites in Canada and the Caribbean. Its geographically diversified footprint allows the company to support regional construction markets, optimize logistics, and respond to local regulatory requirements and environmental standards.
Headquartered in Raleigh, North Carolina, Martin Marietta Materials was established as a spin-off from Martin Marietta Corporation in 1993. Since its inception, the company has grown through strategic acquisitions and organic expansions, positioning itself as a key supplier to public agencies, contractors, and private developers throughout North America.
