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The top five insurance companies in the ranking had an average property and casualty market share of 6.61% as of December 31, 2024. The combined direct premiums written by the top five was more than $69 billion.
The insurance companies saw little year-over-year change, with Progressive seeing the largest change, at an increase of 0.67%.
Scroll through to see which P&C insurance companies are in the top 20 and how they fared through the end of December 2024.
Source: National Association of Insurance Commissioners
| Rank | Company | Market
share | YoY
change | Direct premiums
written | Direct premiums
earned |
| 20 | Berkley | 1.04% | -0.01% | $10,995,656,633 | $10,549,382,326 |
| 19 | Fairfax
Financial | 1.10% | -0.08% | $11,596,650,477 | $11,566,290,523 |
| 18 | Erie
Insurance | 1.13% | 0.08% | $11,950,796,642 | $11,014,624,651 |
| 17 | Tokio
Marine | 1.20% | -0.04% | $12,660,220,589 | $12,288,113,199 |
| 16 | CNA | 1.36% | -0.07% | $14,392,563,725 | $13,909,679,014 |
| 15 | Auto-Owners
Insurance | 1.51% | 0.15% | $15,891,440,266 | $14,580,491,589 |
| 14 | AIG | 1.53% | -0.13% | $16,115,151,961 | $15,851,267,968 |
| 13 | The Hartford | 1.65% | -0.01% | $17,421,661,903 | $16,723,338,752 |
| 12 | American Family
Insurance | 1.67% | -0.06% | $17,618,189,874 | $16,757,353,609 |
| 11 | Nationwide | 1.68% | -0.38% | $17,693,030,666 | $18,467,969,533 |
| 10 | Zurich | 1.76% | -0.17% | $18,565,276,991 | $18,212,721,720 |
| 9 | Farmers | 2.68% | -0.15% | $28,288,708,813 | $27,915,125,163 |
| 8 | Chubb | 3.14% | -0.16% | $33,114,493,397 | $32,293,373,770 |
| 7 | USAA | 3.43% | 0.10% | $36,134,505,514 | $34,866,623,107 |
| 6 | Travelers | 3.98% | -0.04% | $41,921,555,049 | $40,529,337,004 |
| 5 | Liberty Mutual | 4.19% | -0.58% | $44,138,829,399 | $44,986,697,372 |
| 4 | Allstate | 5.30% | 0.09% | $55,859,006,450 | $53,787,917,843 |
| 3 | Berkshire
Hathaway | 6.00% | -0.21% | $63,279,826,760 | $62,597,109,078 |
| 2 | Progressive | 7.20% | 0.67% | $75,884,809,416 | $72,159,533,561 |
| 1 | State Farm | 10.34% | 0.58% | $108,982,080,437 | $104,207,362,749 |
