Which company became the world's first billion-dollar corporation at its formation in 1901?

United States Steel Corporation became the world’s first billion-dollar corporation at its formation in 1901.

Financier J. P. Morgan assembled the company by combining Andrew Carnegie’s Carnegie Steel with Federal Steel, National Steel, and several other steel, wire, tube, bridge, and iron-ore businesses. The corporation was incorporated in February 1901 and publicly organized in March. Its authorized capitalization was approximately $1.4 billion, an extraordinary figure for the era.

“Carnegie Steel” is a tempting answer because it formed the core of the merger, but Carnegie’s company was absorbed into the new corporation rather than becoming the billion-dollar corporation itself. General Electric and Standard Oil were also major industrial giants, yet neither is the standard answer to this specific 1901 milestone.

U.S. Steel was not merely large on paper: it became the dominant force in American steelmaking. In its first full year of operations, it produced roughly two-thirds of U.S. steel. Its creation illustrated the era’s merger wave, vertical integration, and the growing influence of investment bankers over industrial corporations.