Who was the backing for us steel?

U.S. Steel, officially known as the United States Steel Corporation, was founded in 1901 through the merger of several steel companies, including Andrew Carnegie's Carnegie Steel Company and the Federal Steel Company. The backing for U.S. Steel primarily came from J.P. Morgan, a prominent banker and financier, who played a crucial role in orchestrating the merger and providing financial support. This made U.S. Steel the first billion-dollar corporation in American history.