Company Story
1939 - Martin Marietta Materials, Inc. was founded as a subsidiary of the Glenn L. Martin Company, a leading aircraft manufacturer.
1956 - The company went public with an initial public offering (IPO) of common stock.
1961 - Martin Marietta Materials, Inc. began to expand its operations through acquisitions and internal growth.
1982 - The company changed its name to Martin Marietta Aggregates, Inc. to reflect its focus on the aggregates business.
1993 - The company merged with the materials operations of American Cement Corporation.
1996 - Martin Marietta Aggregates, Inc. changed its name to Martin Marietta Materials, Inc. to reflect its expanded product line.
2009 - The company acquired the quarry and asphalt operations of Florida Rock Industries, Inc.
2014 - Martin Marietta Materials, Inc. acquired the Texas Industries, Inc. (TXI) operations, expanding its presence in Texas and the Southwest.
2018 - The company acquired the Bluegrass Materials Company, expanding its presence in the Southeast and Mid-Atlantic regions.