Walmart topped Fortune's list of the United States' 500 largest corporations by revenue for the seventh year in a row, as online rival Amazon cracked the top five for the first time.
The annual list ranked companies by their revenue in the 2018 fiscal year.
"FORTUNE 500 companies represent two-thirds of the U.S. GDP with $13.7 trillion in revenues, $1.1 trillion in profits, $22.6 trillion in market value, and employ 28.7 million people worldwide," the company said in a statement.