The Biggest Car Insurance Companies

With so many car insurance companies, how do you choose?

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With so many car insurance companies to choose from, it can be hard to figure out which one is best for you. One strategy is to start by considering the biggest car insurance companies in the U.S. These insurers offer policies across the country and provide lots of different options to allow customers to find the right combination of coverage and value.

But bigger doesn’t always mean better. Some smaller regional insurers stand out for their excellent coverage options, discounts, and customer service. Keep reading for our list of the 25 biggest car insurance companies in the U.S. by premiums written, including how to choose the best insurer for your needs. 

The Biggest Car Insurance Companies

State Farm

State Farm

 State Farm

  • Over 18,000 local agents

  • Highly ranked for customer satisfaction and claims service

  • Broad range of insurance products with good discounts

  • Not currently offering insurance quotes in MA or RI

State Farm is the largest car insurer in the U.S. With a user-friendly website and a network of over 18,000 local agents, the company makes it easy to learn about and buy car insurance policies. State Farm also offers insurance for your boat, RV, motorcycle, home, health, small business, and more, so you can cover your bases. The company has lots of discounts, too, such as up to 17% off for bundling car and home insurance and up to 30% off for safe-driver programs. 

State Farm ranks above average for overall customer satisfaction and has some of the highest claims-satisfaction rankings, compared to other national insurers.

  • AM Best rating: A++ Superior
  • Direct premiums written: $40.3 billion

GEICO (Berkshire Hathaway)

  • 24/7 service with a consistently high customer-satisfaction ranking

  • Top-ranked online tools and digital services

  • Lots of discounts

  • Customer service has a digital/phone focus, which may be a drawback for policyholders who want in-person service

GEICO is a subsidiary of Berkshire Hathaway and the second-largest car insurer in the country. GEICO has established itself as a leader in digital tools and is a great choice for both tech-savvy and traditional customers. The company provides online quotes, online policy management, a top-ranked app that you can manage and report claims on, virtual assistant chatbots, and even the option to interact with your policy using Siri, Google, or Alexa.

For more traditional service, GEICO also offers 24/7 customer service online, a call center, and local agents. The company offers all of the usual car insurance coverages, plus a few extras and a long list of discounts. GEICO is the best car insurer for auto insurance shopping and ranks first out of 19 for customer satisfaction with the digital experience. 

  • AM Best rating: A++ (Superior)
  • Direct premiums written: $33.9 billion




  • Easy online quotes with multiple options to find the best price

  • Name Your Price tool

  • Extra coverage options like GAP coverage, rideshare insurance, and Mexico car insurance.

  • Snapshot program may result in increased rates for high-risk drivers (about 20% of participants see an increase).

  • Quotes might hurt your credit score.

Founded in 1937, Progressive is the third-largest car insurer in the U.S. and offers 24/7 customer service by phone. Progressive stands out from the rest because of its “Name Your Price” option and comparative quotes feature, which provides you with quotes from other insurers so you can compare prices side by side. (We still recommend requesting quotes directly from other insurers, though, just to make sure they’re accurate.)

Progressive was also a pioneer in usage-based insurance with its Snapshot program, which provides discounts on your premiums if you have safe driving habits. As a top insurer, the company offers all of the standard car insurance coverages you need, plus a number of helpful add-ons like rideshare insurance, GAP coverage, and Mexico car insurance.

  • AM Best rating: A+ (Superior)
  • Direct premiums written: $33.1 billion




  • New car replacement coverage for cars under two years old

  • Extensive list of discounts

  • Pay-per-mile and safe-driver usage-based insurance programs offer rewards.

  • Drivewise, Milewise, and accident forgiveness are not available in all states.

  • Costs vary. depending on whether you buy with a local agent or online.

Well-known for the slogan "You're in good hands," Allstate is the fourth-largest car insurer in the U.S. In our review of Allstate car insurance, we found that it offers good discounts and savings for drivers of all ages, including good savings programs for teens and young drivers, safe-driver discounts through the Drivewise program, and a pay-per-per-mile program called Milewise. The company also helps to protect your driving record with accident forgiveness. 

  • AM Best rating: A+ (Superior)
  • Direct premiums written: $25.8 billion




  • Top-ranked for customer satisfaction across the country

  • Coverages and discounts designed for military members

  • Policyholders may be eligible for distributions

  • Only available to members of the military and their families

  • Some discounts or programs might not be available based on location or if you have accidents or convictions on record

USAA is a member-owned organization that offers insurance exclusively to military members and their families. USAA’s car insurance includes features designed for service members’ needs, such as a discount of up to 60% when you store your car while deployed. USAA also provides many other discounts for good students, children of policyholders (up to 10%), and loyal members (whose discounts increase with the length of membership).

One advantage of USAA membership is that you’re eligible for dividends, rewards, and distributions. In addition to car insurance, USAA offers other insurance, financial services, and banking products so members can take care of all of their financial needs in one place. 

USAA’s membership requirement means that it’s not eligible to be ranked in J.D. Power’s insurance company studies. However, J.D. Power does score how satisfied customers are with USAA car insurance, and those scores are consistently higher than those of USAA's competitors. 

  • AM Best rating: A++ (Superior)
  • Direct premiums written: $15.7 billion

Liberty Mutual

Liberty Mutual Insurance

Liberty Mutual Insurance

  • Good selection of valuable optional car insurance coverages

  • Highly ranked for digital customer service experience

  • Overall customer satisfaction varies, depending on the region (from average to below average)

Liberty Mutual offers many options in addition to basic car insurance coverage, which helps you customize your policy. For example, if you enroll in the Liberty Mutual Deductible Fund, you can pay $30 extra in premiums each year that you don’t have a claim, which lowers your collision deductible by an additional $100 per year.

The company also offers GAP coverage, original parts replacement options, and new or better car replacement—which can be an advantage over the depreciated-value settlements usually provided by standard auto insurance in the event of a total loss. 

Liberty Mutual is highly ranked (second out of 19 insurers) for digital customer service and ranks above average for the car insurance shopping experience by J.D. Power. However, its overall customer-satisfaction rank varies across the country from average to below average, depending on the region. 

  • AM Best rating: A (Excellent)
  • Direct premiums written: $11.8 billion

Farmers Insurance Group

Farmers Insurance

Farmers Insurance Group

  • Good variety of optional coverages

  • Offers insurance for high-risk drivers

  • Wide range of discounts

  • Inconsistent ranking for overall customer satisfaction depending on location

  • Average claims satisfaction scores

The Farmers Insurance Group includes Farmers Insurance as well as a long list of affiliated companies such as 21st Century Insurance, Security National, and Bristol West (one of our top picks for high-risk car insurance). Aside from the usual car insurance coverage, the company features a few extras like new car replacement, guaranteed value on collectible cars, accident forgiveness, original parts, and rideshare insurance.

Overall customer satisfaction with Farmers ranges from above average to below average, depending on the region. When it comes to paying claims, Farmers has an average claims-satisfaction score and ranked tenth out of 24 insurers in the 2020 J.D. Power U.S. Auto Claims Satisfaction Study. 

  • AM Best rating: A (Excellent)
  • Direct premiums written: $9.9 billion




  • Great usage-based insurance savings options

  • “On Your Side Review” is an annual checkup for your insurance coverage

  • Not available in Hawaii, Alaska, Massachusetts, or Louisiana

  • SmartMiles and SmartRide programs use telematics devices that don’t work with some cars.

In business for nearly 100 years, Nationwide sells insurance through its website and local independent agents. If you like buying insurance online, Nationwide may be a company to consider, because it scores above average for its digital shopping experience in customer surveys, outranking all of the top insurers on this list except Liberty Mutual and Progressive.

Nationwide has above-average results in claims satisfaction, ranking ninth out of 25 insurers. In addition to standard car insurance, the company offers a disappearing deductible option, accident forgiveness, and GAP coverage.

An annual “On Your Side Review” of your coverage helps you find additional discounts and other ways to get the most out of your insurance. Nationwide also offers two usage-based insurance programs to help policyholders save money based on their driving habits.

The SmartMiles pay-per-mile program is available in 34 states, and the SmartRide safe driving program can help policyholders save up to 40% (the highest discount we’ve seen for this type of program).

  • AM Best rating: A+ (Superior)
  • Direct premiums written: $5.7 billion

Compare Providers

  Premiums Written in 2020 Market Share (%) AM Best Financial Stability Ranking 2020 J.D. Power Auto Claims Satisfaction Study (out of 24 Insurers)
State Farm $40.3 billion 16.2 A++ (Superior) #6 
GEICO (Berkshire Hathaway Inc.) $33.9 billion 13.6 A++ (Superior) #12
Progressive $33.1 billion 13.3 A+ (Superior) #21
Allstate $25.8 billion 10.4 A+ (Superior) #8
USAA Insurance Group $15.7 billion 6.3 A++ (Superior) Unranked due to eligibility requirements, but score is tied for #3
Liberty Mutual  $11.8 billion 4.7 A (Excellent) #14
Farmers Insurance Group of Companies $9.9 billion 4.0 A (Excellent) #10
Nationwide Mutual Group $5.7 billion 2.3 A+ (Superior) #9

Big vs. Small Car Insurance Companies

Choosing the best car insurance company can be difficult, especially if you’re deciding between a smaller, more regional company and a larger, nationwide insurer. Although the size of a company and its market share can indicate its success, smaller car insurance companies are also worth considering. For example, on J.D Power’s regional rankings of car insurance customer satisfaction, several of the largest insurance companies rank highly, but many smaller car insurance companies also perform well.  

Other questions you may want to consider when choosing between large and small insurers are relevant to the services they offer:

  • Does the company have local offices or agents? Perhaps you’d like to buy insurance from an agent who’s familiar with the lifestyle and risks in your area.
  • Does the company specialize in your specific insurance needs? If you’re considered a high-risk driver or need non-owner insurance, you may find more options with smaller insurers. 
  • Would you prefer to speak with agents in a language other than English? Some insurers provide bilingual service; for example, Infinity’s website and all customer service options are available in Spanish, and GEICO offers Spanish-speaking service.

How Should I Choose the Best Car Insurance for Me?

What qualifies as the best car insurance for you depends on a lot of factors. The most important considerations are that your insurance company has a good reputation and is financially stable, which means it will be able to pay any claims you need to file.   

You can look into an insurance company’s reputation by contacting your state insurance commissioner’s office or by looking up its history of complaints at the National Association of Insurance Commissioners website. However, since many insurers are, in fact, groupings of various companies, depending on your location and type of insurance, the site can be tough to navigate for many consumers.

It is also important to find a company that offers fair pricing for the coverage you need. When shopping for car insurance, be sure to check your prices and coverages with at least three companies to get the best idea of your options, especially if you’re looking for specific endorsements.

Remember that different insurance companies will use different factors to determine their premiums, such as your payment method or whether you own your home. Carefully compare quotes to see which insurer offers you the best combination of coverages, value, discounts, and overall price. 

Online reviews of the best car insurance companies often contain a lot of this information, but it’s worth double-checking to make sure you get answers specific to your situation and location. You can find all of The Balance’s car insurance reviews in one place, as well as these overviews for drivers with specific needs:

Article Sources

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  2. AM Best. "State Farm Fire and Casualty Company." Accessed November 16, 2020.  

  3. Insurance Information Institute. "Facts + Statistics: Auto insurance." Accessed November 9, 2020. 

  4. J.D. Power. "Property & Casualty Insurers Raise Digital Games as COVID-19 Elevates Customer Expectations, J.D. Power Finds." Accessed November 17, 2020.

  5. J.D. Power. "Direct-to-Consumer Auto Insurers Take Top Honors in Shopping Study as New Normal Arrives for P&C Industry, J.D. Power Finds." Accessed November 17, 2020. 

  6. AM Best. "AM Best Affirms Credit Ratings of Members of GEICO, GEICO Corporation and Its Affiliate." Accessed November 16, 2020.

  7. Insurance Information Institute. "Background on: Pay-as-you Drive Auto Insurance (telematics)." Accessed November 18, 2020.

  8. AM Best. "The Progresive Corporation." Accessed November 16, 2020. 

  9. AM Best. "Allstate Insurance Company." Accessed November 16, 2020. 

  10. AM Best. "USAA Casualty Insurance Company." Accessed November 16, 2020.

  11. NAIC. "FAQ and Questions." Accessed November 17, 2020. 

  12. AM Best. "Liberty Mutual Insurance Companies." Accessed November 16, 2020. 

  13. Bristol West. "Auto Insurance 101." Accessed November 18, 2020. 

  14. J.D. Power. "Auto Insurance Claims Satisfaction Climbs to Record High as Carriers Refine Customer Experience During Pandemic, J.D. Power Finds." Accessed November 17, 2020.

  15. AM Best. "Farmers Insurance Company Inc." Accessed November 16, 2020. 

  16. AM Best. "Nationwide Mutual Insurance Company." Accessed November 16, 2020.