Each Spring, the National Association of Insurance Commissioners (NAIC) releases its analysis of the top property and casualty insurers of the year. With nearly 98% of insurers reporting, the NAIC determined the industry recorded around $1.06 trillion in direct written premium in 2024, with the top ten P&C insurers accounting for about 51% of the total market share.

The largest line of business remains personal passenger auto, with an estimated $344.11 billion in written premium, which makes up about 35% of the overall market.

How did insurers rank in 2024?

As of March 2024, NAIC’s rankings for the top P&C insurers were as follows:

  1. State Farm (9.82% market share)
  2. Progressive (6.57%)
  3. Berkshire Hathaway (6.25%)
  4. Allstate (5.24%)
  5. Liberty Mutual (4.56%)
  6. Travelers (4.04%)
  7. USAA (3.35%)
  8. Chubb (3.32%)
  9. Farmers (2.85%)
  10. Nationwide (2.07%)

How have things in the market shifted over the last year? Check out the slideshow above to see the NAIC’s rankings for the top P&C insurers of 2025.

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