The United States is home to some of the largest global companies. Of the world’s 50 largest public companies by revenue, 21 are based in the United States, including five of the top 10.

Many of the largest American companies are headquartered in the country’s major economic capitals, including New York, Los Angeles, Detroit, Dallas, Houston, and the D.C. metropolitan area. New York City alone is home to the headquarters of dozens of the world’s largest public companies, the most of any city in the United States. Some companies can be found in somewhat smaller, but still substantial business hubs such as California’s Silicon Valley.

38. Pennsylvania
> Largest company: AmerisourceBergen Corporation (NYSE: ABC)
> Revenue: $146.8 billion
> Headquarters: Chesterbrook, PA
> Industry: Pharmaceutical distribution

AmeriSourceBergen, a health care supply company, is one of the largest of its kind in the United States — and the largest company of any kind in Pennsylvania. The company employs about 19,000 people and owns 30 distribution centers around the country.

Still, most states, even those that are less populous and lacking a major city, are home to at least one company with $10 billion or more in sales. In fact, many of the largest companies in the country are based in small states such as Nebraska and Arkansas. Based on company filings and estimates of private company figures, as provided by S&P Capital IQ, these are the largest companies in every state.

Click here to see the largest company in every state.
Click here to see our detailed findings and methodology.