9. Nationwide $1.504 billion
Nationwide and its affiliated companies are a group of large U.S. insurance and financial services companies based in Columbus, Ohio. It began in 1926 as Farm Bureau Mutual Automobile Insurance Company and changed its name in 1955. The company also operates regional headquarters in Scottsdale, Ariz.; Des Moines, Iowa; San Antonio; Sacramento, Calif.; and Westerville, Ohio.