The 10 biggest property and casualty insurance companies in 2026

What are the biggest property and casualty insurance companies in the U.S.?

State Farm is the biggest P&C insurance company in the U.S., with more than 10% of the market share. It's followed by Progressive, Berkshire Hathaway and Allstate.

The full list of the top 10 biggest property and casualty insurers by size, along with the dollar amount of direct premiums written in 2024, is below. New market share numbers for premiums written in 2025 are expected in the spring of 2026.

Rank	Company	Premium written (billions)	Market Share
1	State Farm	$109.0	10.30%
2	Progressive	$75.9	7.18%
3	Berkshire Hathaway	$63.3	5.98%
4	Allstate	$55.9	5.28%
5	Liberty Mutual	$44.1	4.17%
6	Travelers	$42.0	3.96%
7	USAA	$36.1	3.42%
8	Chubb	$33.3	3.15%
9	Farmers	$28.3	2.67%
10	Zurich Insurance Group	$18.6	1.76%

Property and casualty insurance includes auto, homeowners and commercial insurance. The NAIC report includes market share data for these and several other lines of insurance, including:

Personal auto
Commercial auto
Homeowners
Workers' compensation
Medical professional liability
Other liability, excluding auto liability

Here’s a breakdown of the major insurance companies:

1. State Farm

The nation's biggest insurance company has a market share of 10.3%. State Farm offers many types of insurance, including:

Home and property
Small business
Life
Health
Disability
Liability
Pet medical

State Farm is based in Bloomington, Illinois. The company has been in business for more than 100 years and has been the largest property and casualty insurer in the U.S. for many years.

2. Progressive

Progressive wrote more than $75 billion in premiums in 2024 and had a 7.18 % market share. It offers several types of insurance, including:

Vehicle
Homeowners
Business

3. Berkshire Hathaway

Berkshire Hathaway, including notable subsidiary GEICO, holds 5.98% of the market share. Other insurance companies in Berkshire's orbit include

Berkshire Hathaway Specialty Insurance
biBERK Business Insurance
Berkshire Hathaway GUARD Insurance Companies

3. Allstate

Allstate claimed 5.28% of the P&C market share in 2024. Based in Northbrook, Illinois, it primarily sells auto and homeowners insurance.

Subsidiaries of Allstate include Esurance and Encompass.

Allstate Financial also offers life insurance, retirement and investment products, as well as voluntary accident and health insurance products. The company sells other types of insurance ranging from business insurance to specialty politics for things like motorcycles and boats.

4. Liberty Mutual

Liberty Mutual wrote $44.1 billion in premiums during 2024 and captured 4.17% of the market share.

Based in Boston, Liberty Mutual sells auto and vehicle, property and business insurance. It also offers other types of coverage ranging from critical illness insurance to tuition insurance.

Liberty Mutual's major subsidiary, Safeco, is being rebranded under the Liberty Mutual name in 2026.

5. Travelers

Travelers wrote more than $42 billion in premiums during 2024, gaining 3.96% of the market share. The New York-based company sells auto and home insurance, as well as specialty insurance, such as wedding and event coverage, pet insurance and travel insurance.

6. United Service Automobile Association (USAA)

United Service Automobile Association wrote $36 billion in premiums in 2024, taking 3.42% of the market share.

The San Antonio-based company auto and vehicle, home and property, small business, and life and health insurance. It also offers other types of coverage, ranging from aviation to special events and mobile phone protection insurance. The insurer serves military members and their families.

7. Chubb

Chubb wrote $33.3 billion in premiums during 2024 and claimed 3.15% of the market share.

Chubb sells home and auto insurance, as well as products targeted to special types of needs, such as cyber coverage and bespoke services that offer "a level of service tailored to your lifestyle." The company's U.S. headquarters are in Warren, New Jersey.

8. Farmers Insurance

Farmers wrote $28.3 billion in premiums in 2024 and netted a 2.67% market share. Based in Woodland Hills, California, Farmers sells vehicle, home, life and business insurance policies, as well as specialty products such as rideshare coverage.

9. Zurich Insurance Group

Zurich Insurance Group wrote $18.6 billion in premiums in 2024 and holds 1.76% of the market share.

Zurich is a global insurance group that owns Farmers Insurance Group, although the NAIC lists it and its market share separately,

While you can count on the biggest insurance companies for financial stability, comprehensive coverage and a pleasant customer service experience, the right insurance company for you will vary on your own insurance needs. Make sure to shop around to find the best policy.

FAQ: Biggest property & casualty insurance companies

What is property and casualty insurance?

Often known as P&C insurance, this is a blanket term for all types of insurance plans that cover the things you own -- including homes and cars -- as well as offering liability coverage that protects you from the damages you cause to others and their property.

The "property" part of this coverage protects the things you own in the event of damage, while the "casualty" part protects you from damages you cause.

What are the different types of property and casualty insurance?

The three primary types of property and casualty insurance are auto, homeowners and commercial insurance.

What should you consider when buying P&C insurance?

There are many things to consider when buying P&C insurance. First and foremost, you want to make sure you have enough coverage to protect you in the event of damages. That means purchasing enough insurance to cover any damages to your own property and any liabilities you might face should you be responsible for damages to others.

Other factors to consider when buying this type of insurance are:

The reputation of the insurance company, particularly in terms of customer service
The financial strength of the insurance company
The cost of coverage
Any discounts that may be available

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