Car insurance has many benefits — the chief of which is protecting your wallet. However, knowing which car insurance company to choose can be overwhelming. One way to start your search is by looking into what other policyholders are buying. These are the largest auto insurance based on National Association of Insurance Commissioners (NAIC) data.
The table below depicts the largest car insurance companies in the United States based on the percentage of insured American drivers who use them.
10 Largest Car Insurance Companies
The largest auto insurance companies are the ones you often hear about. Major players in the insurance industry include State Farm, Progressive, GEICO, Allstate, and USAA.
| Rank | Company Name | Market Share % |
| 1 | State Farm | 18.87 |
| 2 | Progressive | 16.72 |
| 3 | GEICO (Berkshire Hathaway) | 11.63 |
| 4 | Allstate | 10.19 |
| 5 | USAA | 6.16 |
| 6 | Farmers | 3.76 |
| 7 | Liberty Mutual | 3.27 |
| 8 | Travelers | 2 |
| 9 | Auto Club Enterprises (AAA) | 1.80 |
| 10 | American Family | 1.72 |
Source: 2024 data from the National Association of Insurance Commissioners (NAIC)
Key Features and Benefits
Take a look at several key features and benefits that the largest auto insurance companies are known for:
| Company | Key Features | Unique Coverages |
| State Farm |
| Rideshare insurance, emergency roadside service, rideshare driver |
| Progressive |
| Snapshot program for usage-based insurance, tiered accident forgiveness coverage, pet injury coverage, disappearing deductibles |
| USAA |
| Roadside assistance, rental reimbursement |
| Allstate |
| Accident forgiveness, deductible rewards, new car replacement, rideshare insurance |
| GEICO |
| Mechanical breakdown insurance, emergency roadside service, rental reimbursement |
Regional Car Insurance Companies
From the NAIC rankings, these are the largest auto insurance companies that operate in specific regions or states:
- American Automobile Association (AAA)
- Auto-Owners Insurance
- Erie Insurance
- CSAA
- Kemper
- Mercury Insurance
- AAA Michigan
- Sentry Insurance
- Hanover Insurance
- MAPFRE
- Alfa Insurance
- Amica Insurance
- Country Financial
- Southern Farm Bureau
Coverage Options and Specialties
The table below lists popular regional insurers and their key characteristics:
| Insurance Provider | Key features | Unique Coverage Options | Availability |
| Amica |
| Gap insurance, roadside assistance, rideshare driver, rental car reimbursement, full glass protection | 48 states (unavailable in Alaska and Hawaii) |
| AAA |
| Rental car reimbursement, gap insurance, replacement cost coverage | 50 states (Coverages and exclusions vary based on region) |
| Erie |
| First Accident Forgiveness, windshield repair, travel expenses, pet injury coverage | 12 states and the District of Columbia |
| Auto-Owners |
| Additional expense coverage, gap insurance, diminished value, rental car auto gap coverage | 26 states |
Comparing Auto Insurance Companies
Factors to Consider When Comparing
Some factors you'll want to consider when comparing car insurance companies include the company's:
- Coverage options
- Affordability
- Perks and benefits
- Availability
- Discount opportunities
- Reputation
- Digital experience
How to Use Comparison Tools
Online comparison tools gather quotes from different car insurance companies so you can compare them side-by-side. The process is simple. You'll be asked a few questions about your personal information, vehicle specifics, driving history, coverage needs, etc. So you want to have some documentation on hand, including your driver's license and a document with your vehicle's VIN (registration, title, previous insurance card, etc.).
After you input your information, the comparison tool will show you quotes from various companies that offer the coverage you need. You may need to finalize and purchase your policy on the insurer's website, but some websites let you buy directly from the comparison site.
Specialty Auto Insurance Companies
Providers for High-Risk Drivers
Finding insurance as a high-risk driver may be more challenging. Fortunately, major car insurance players, like State Farm, Progressive, and GEICO, offer high-risk driver car insurance. Some even offer policies at a competitive rate and offer some benefits for high-risk drivers, like accident forgiveness.
Classic and Antique Car Insurance Providers
Classic and antique cars generally require more specialized insurance, for a number of reasons. For example, standard car insurance may limit the mechanics you can go to, which can exclude the specialized mechanics needed for your car.
Leading companies in classic car insurance include American Collectors Insurance, Hagerty Insurance Agency, Safeco Insurance Group, State Farm Auto Insurance, and J.C. Taylor Insurance.
Tips for Choosing the Right Auto Insurance Company
Assessing Your Coverage Needs
Building your car insurance policy is like building a house. The first step is to establish your foundation. This is your state minimum car insurance requirements in a car insurance policy. In general, you want your liability coverages to exceed your net worth.
The next step is to build your structure. Like your roof and windows, coverages like collision and comprehensive insurance protect your property from various risks. Other essential coverages depend on your situation.
The final step is to fortify your structure. Optional coverages, such as rental car reimbursement or roadside assistance, increase your protection. These depend on your driving habits and individual situation.
Reading Customer Reviews and Ratings
You can use several metrics to gauge a company's reputation and where you can find it, including:
- Financial strength A.M. Best, Fitch, S&P, Moodys
- Customer satisfaction: JD Power Auto Insurance Customer Satisfaction Survey
- Claims satisfaction: JD Power Auto Insurance Claims Satisfaction Survey
- Company Complaint Index: National Association of Insurance Commissioners (NAIC) Complaint Index
- Consumer reviews: Websites with user-verified testimonials (Better Business Bureau, Trustpilot)
Understanding Policy Terms and Conditions
After purchasing your policy, read through it to understand what it encompasses. These are several parts of your insurance policy you'll want to pay attention to.
- Covered drivers
- Coverage types and risk inclusions
- Exclusion, limitations, and conditions
- Policy effective period
- Premium amount
- Coverage limits
- Deductible amounts
- Endorsements (optional coverages)
- Discounts
Insurance companies must also add a key term definition section to their policies. Reading this could help you better understand your coverage's terms and conditions. If you still have questions, speak to your local insurance agent for assistance.
FAQ
What is the biggest car insurance company?
The biggest car insurance company is State Farm, owning 18.87% of the market share in 2024.
Is regional car insurance better than national car insurance companies?
Regional insurance companies aren't necessarily better than national car insurance. Car insurance companies vary in quality based on region, so check customer satisfaction ratings in your state.
How can I find reviews for auto insurance companies?
You can find reviews for auto insurance companies by checking online review sites, reading consumer reports, and asking friends and family for recommendations.
What is the benefit of using a comparison tool for auto insurance?
The benefit of auto insurance comparison tools is that they quickly compare quotes, coverage options, and customer reviews from multiple companies.
Can I switch auto insurance companies at any time?
Yes, you can switch auto insurance companies at any time, but it's important to check if your insurer has cancellation fees.
