5 Biggest Steel Companies in the US

2. Steel Dynamics, Inc. (NASDAQ:STLD)

Market Capitalization ($): 21.81 billion

Steel Dynamics, Inc., commonly referred to as “SDI,” is a prominent American steel producer headquartered in Fort Wayne, Indiana, with a production capacity of 13 million tons of steel. As the third largest producer of carbon steel products in the United States, the company reported significant achievements in its 2023 annual performance.

These achievements include record steel shipments of 12.8 million tons, net sales of $18.8 billion, operating income of $3.2 billion, and net income of $2.5 billion. Additionally, the company showcased an adjusted EBITDA of $3.7 billion and strong cash flow from operations totaling $3.5 billion. These impressive metrics reflect Steel Dynamics, Inc.’s solid financial performance and notable position in the steel industry.