Martin Marietta Corporation

American corporation

Written and fact-checked byThe Editors of Encyclopaedia Britannica

Updated: Nov. 14, 2026

Date:: 1961 - 1995

Areas Of Involvement:: aerospace industry

Ticker:: LMT

Share price:: $596.04 (mkt close, Nov. 13, 2026)

Market cap:: $137.69 bil.

Annual revenue:: $79.12 bil.

Earnings per share (prev. year):: $28.16

CEO:: Mr. James D. Taiclet Jr.

Sector:: Industrials

Industry:: Aerospace & Defense

Martin Marietta Corporation, diversified American corporation (incorporated 1961) that was primarily involved in the production of aerospace equipment and defense systems for the U.S. government. In 1995 it merged with another major aerospace firm, the Lockheed Corporation, to form the Lockheed Martin Corporation.

This article was most recently revised and updated by The Editors of Encyclopaedia Britannica