What is the third largest insurance company in USA?

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The third-largest insurance company in the U.S. depends on the sector you look at, with Berkshire Hathaway (parent of GEICO) ranking third in property and casualty (P&C) net premiums written, and GEICO specifically holding the third spot in auto insurance market share.

📊 Property & Casualty (P&C) Insurers

Ranked by net premiums written, the top three P&C leaders are:

    1. State Farm Group ($113.7B+)
    1. Progressive Ins Group ($83.1B+)
    1. Berkshire Hathaway Ins ($80.9B+)

🚗 Auto Insurance Market Share

Ranked by personal auto insurance market share:

    1. State Farm (~18.87%)
    1. Progressive (~16.72%)
    1. GEICO (~11.63%)

🏥 Health Insurance

If measuring by health insurance enrollment and revenue, the third-largest is Centene Corporation or CVS Health (Aetna) depending on the exact metric (assets vs. direct premiums).

What are the 5 largest insurance companies in the US?

The five largest insurance groups in the United States by property and casualty net premiums written are State Farm, Progressive, Berkshire Hathaway, Allstate, and Travelers.

Top 5 U.S. Insurers (Property & Casualty)

  • State Farm Group: The largest auto and home insurer in the U.S., writing over $113 billion in net premiums.
  • Progressive Insurance Group: A massive personal and commercial auto insurer, generating about $83 billion in net premiums.
  • Berkshire Hathaway Insurance Group: The parent company of GEICO and major reinsurance entities, writing roughly $81 billion in premiums.
  • Allstate Insurance Group: A leading provider of personal auto and homeowners insurance, with around $57 billion in net premiums.
  • Travelers Group: A dominant commercial and personal property insurer, reporting roughly $42 billion in net premiums.

You can review broader industry statistics and market shares through the Insurance Information Institute. If you look strictly at health insurance, UnitedHealth Group is the largest provider in the country.

Who are the big 3 insurance companies?

The "Big 3" insurance companies depend on the specific type of insurance and country, but in the United States auto and property market, the top three groups are State Farm, Progressive, and Berkshire Hathaway (GEICO).

Auto and Property & Casualty (U.S.)

  • State Farm: The largest property and casualty insurer in the U.S., holding about 13% to 18% of the market share depending on the specific personal lines.
  • Progressive: A major vehicle insurer that ranks as a close second or third in overall lines.
  • Berkshire Hathaway (GEICO): A massive holding company owning GEICO, placing it firmly in the top tier for private passenger auto and property coverage.

Health Insurance (U.S.)

By market share and enrollment, the largest three health groups are:

  • UnitedHealth Group (UnitedHealthcare)
  • Elevance Health (formerly Anthem)
  • CVS Health (including Aetna) or Centene

Life Insurance (U.S.)

Ranked by direct premiums written, the top three are:

  • New York Life
  • Northwestern Mutual
  • Metropolitan (MetLife)

Who are the big 5 insurers?

The "Big 5" usually refers to the largest for-profit health insurance companies in the United States: UnitedHealthcare (UnitedHealth Group), Elevance Health (formerly Anthem), Cigna Healthcare, CVS Health (Aetna), and Humana.

Health Insurance "Big 5"

  • UnitedHealthcare: The largest health insurer in the U.S. by membership and revenue.
  • Elevance Health: Operates Blue Cross Blue Shield plans in multiple states and serves tens of millions of members.
  • Cigna Healthcare: A major global health service and insurance organization.
  • CVS Health (Aetna): Acquired Aetna to combine retail pharmacy care with major medical insurance.
  • Humana: A leading health insurer specializing heavily in Medicare and specialized medical plans.

(Note: If you meant property and auto insurance, the top five auto insurers are typically State Farm, Progressive, Berkshire Hathaway (GEICO), Allstate, and Liberty Mutual.)

Who is the #1 insurance company in the US?

State Farm is the #1 property and casualty and auto insurance company in the U.S. by market share.

📊 Top Insurance Providers by Category

  • Auto & Property/Casualty:
    • State Farm Group: #1 overall (approx. 18.6% auto market share).
    • Progressive: Close #2 in auto, leading commercial auto.
  • Health Insurance:
    • UnitedHealth Group: #1 largest health insurer (approx. 16% market share).
  • Life Insurance:
    • Northwestern Mutual: #1 direct provider of individual life insurance.

10 Largest Insurance Companies in the World 2018-2019

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What are the top 10 insurance companies in the USA?

The top 10 insurance companies in the USA by market share and net premiums written in the property and casualty (P&C) sector are led by State Farm.

Top 10 Property & Casualty Insurance Groups

  • 1. State Farm Group: The largest property, casualty, and auto insurer in the U.S., known for its large captive agent network.
  • 2. Progressive Ins Group: A major personal and commercial auto leader known for digital tools and usage-based insurance.
  • 3. Berkshire Hathaway Ins: Parent company of GEICO, offering massive auto, property, and specialty reinsurance.
  • 4. Allstate Ins Group: A top national provider for home and auto insurance backed by local agents.
  • 5. Travelers Group: A prominent commercial and personal lines carrier working extensively through independent agents.
  • 6. USAA Group: Specialized provider offering high-satisfaction banking and insurance services strictly to military members, veterans, and their families.
  • 7. Liberty Mutual Ins Cos: A global multi-line insurer providing personal and group auto, home, and workers' compensation.
  • 8. Chubb INA Group: A premier global insurer specializing in high-net-worth personal coverage and commercial property.
  • 9. Farmers Ins Group: A widespread national provider offering extensive auto, home, and specialized add-on coverages.
  • 10. Hartford Ins Group: Known widely for commercial property, casualty, and specialized programs like AARP-partnered auto and home coverages.

Which insurance denies the most claims?

Oscar Health denied 25.3% of in-network claims in 2024, representing the highest denial rate among major national ACA marketplace health insurers.

Health Insurance Denial Rates

  • Oscar Health: Denied 25.3% of marketplace claims.
  • Molina Healthcare: Denied 22% of claims.
  • Ambetter (Celtic): Denied 21% of claims.
  • UnitedHealthcare: Denied 20% of claims (down from 33% the previous year).
  • Kaiser Permanente: Recorded the lowest national rate at approximately 6%.

Homeowners and Auto Insurance Denial Rates

  • Allstate and USAA: Frequently flagged by public reports and consumer data for closing roughly 40% to 50% of property and homeowners claims without payment in high-risk regions.
  • State Farm: Reported home insurance denial rates exceeding 41% to 59% in catastrophe-heavy markets like Florida.

Who is the world's biggest insurance company?

The biggest insurance company in the world depends on how you measure size, with UnitedHealth Group leading by revenue and net premiums written, and Berkshire Hathaway leading by total assets and market value.

Rankings by Category

  • By Revenue / Net Premiums Written: UnitedHealth Group (USA) ranks #1 globally, bringing in over $300 billion in net premiums and massive total annual revenues through its health insurance and Optum services.
  • By Assets and Market Value: Berkshire Hathaway (USA) is the largest property, casualty, and multi-line insurer by assets (surpassing $1.1 trillion) and overall financial market capitalization.
  • Other Global Giants: Traditional property/casualty and life giants like Allianz (Germany), Ping An (China), and China Life (China) regularly trade places in the top five global ranks depending on annual asset valuations and currency shifts.

What are the biggest insurance companies in Canada?

Manulife Financial is the largest insurance company in Canada by total assets and market presence.

The Canadian insurance market splits between major life and health insurers and large property and casualty (P&C) providers.

Top Life and Health Insurance Companies

  • Manulife Financial: Headquartered in Toronto, it is the largest insurer in Canada, offering wealth management, life insurance, and asset management globally.
  • Great-West Lifeco: Based in Winnipeg, this major financial services holding company operates Canada Life, Great-West Life, and London Life.
  • Sun Life Financial: Founded in 1865 and based in Toronto, it provides wealth and asset management alongside global life and health insurance.
  • iA Financial Group (Industrial Alliance): A major Canadian insurance and wealth management group based in Quebec City.
  • Desjardins Group: A massive cooperative financial group providing robust life, health, and general insurance options.

Top Property and Casualty (P&C) Insurance Companies

  • Intact Financial Corporation: Canada's largest provider of property and casualty (auto, home, and business) insurance.
  • Fairfax Financial Holdings: A Toronto-based holding company focused on property and casualty insurance and global reinsurance.
  • Aviva Canada: A top home and auto insurer operating as a subsidiary of the UK-based Aviva group.
  • TD Insurance: One of Canada's largest direct-response bank-affiliated property and casualty insurance providers.
  • The Co-operators: A large Canadian-owned cooperative providing home, auto, life, and farm insurance.

What is the No. 1 insurance company?

State Farm Group is the No. 1 property, casualty, and auto insurance company in the United States by market share.

The top spot can change depending on the category of insurance you need:

  • Auto and Homeowners: State Farm holds the largest market share in the U.S. for personal lines like auto and home insurance.
  • Health Insurance: UnitedHealth Group is the top health insurance provider in the country.
  • Life Insurance: MetLife ranks first for direct premiums written in life and annuity lines, while companies like Northwestern Mutual score highest for customer trust and experience.
  • Global Revenue: UnitedHealth Group and Berkshire Hathaway are the largest globally by total revenue.