About Martin Marietta

A member of the S&P 500 Index, Martin Marietta is an American-based company and a leading supplier of building materials - including aggregates, cement, ready mixed concrete and asphalt. Through a network of operations spanning 28 states, Canada and the Bahamas, dedicated Martin Marietta teams supply the resources necessary for building the solid foundations on which our communities thrive.

Martin Marietta's Magnesia Specialties business produces high-purity magnesia and dolomitic lime products used worldwide in environmental, industrial, agricultural and specialty applications.

Our Mission

To become a true WORLD-CLASS ORGANIZATION, we must move forward with a clear, unified MISSION, VISION and VALUES.



At Martin Marietta, we are dedicated to doing business the right way. Our employees hold themselves, and each other, to the utmost standard of integrity. Our business ethics allow us to maintain our strong commitment to honesty, integrity and accountability.


Inclusion & Diversity

At Martin Marietta, inclusion is a commitment, renewed each day, to show up with heart for our co-workers, customers, communities and loved ones to enable and ensure a sense of belonging, safety, and well-being - in body and in mind. There is strength in what makes each of us different, and in what we have in common. Regardless of position, we all have a unique combination of traits, backgrounds, skills and ideas. Those diverse perspectives are what inspire growth at all levels, both inside and outside of the organization.



We are dedicated to our employees, customers, communities, shareholders and suppliers. This has always been, and continues to be, the cornerstone of our business.


Operating Divisions

  • Central
  • East
  • Southwest
  • West
  • Magnesia Specialties
West Central Central Southwest East East Magnesia Specialties Magnesia Specialties

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