Largest US Auto Insurance Companies by Market Share

The largest auto insurance companies in the U.S. by market share in 2015 were:

  • State Farm, 18.3%
  • Berkshire Hathaway, Inc. (Geico), 11.4%
  • Allstate, 10%
  • Progressive, 8.8%
  • Farmers Insurance, 5.3%
  • USAA Insurance, 5%
  • Liberty Mutual, 5%
  • Nationwide, 3.7%
  • American Family, 1.9%
  • Travelers, 1.7%

Source: SNL Financial, Insurance Information Institute