Martin Marietta Employee Directory
MiningNorth Carolina, United States1001-5000 Employees
Martin Marietta operates as a leading supplier of aggregates and heavy building materials, providing the foundational resources that support infrastructure and development. The company’s Specialties unit also produces high-purity magnesia and dolomitic lime for environmental, industrial, agricultural, and specialty applications. With a network spanning 28 states, Canada, and the Bahamas, it serves a wide geographic footprint from its base in Raleigh, North Carolina. It serves public and private construction, infrastructure, and industrial customers, aiming to be a good neighbor in roughly 500 communities where it operates and to contribute to long-term community well-being. As a member of the S&P 500, Martin Marietta positions itself as a large, multi-region player in the mining and construction materials industry, with cross-border operations in North America. In February 2026, the company completed an asset exchange with Quikrete Holdings, expanding its aggregates footprint with operations producing about 20 million tons annually across Virginia, Missouri, Kansas, and Vancouver, British Columbia.
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