While these carriers underwrite a large number of policies, they differ on price, service quality and many other characteristics. To help you choose the best insurance company for your situation, we created a list of the 10 largest auto insurance companies in the U.S. and discussed what makes each of them unique.
- What are the biggest auto insurance companies?
- Who are the largest car insurers by state?
- How do large and small insurers differ?
- What's the difference between mutual and stock insurance companies?
- How to choose the right insurer for you
What are the largest auto insurance companies?
When looking at the rankings of the top auto insurance companies in the United States, most of the names are recognizable due to their national television advertising campaigns.
The number one auto insurance company in the country in terms of market share and premiums written is State Farm, followed by Geico, Progressive and Allstate.
Yet the 10 largest insurance companies offer varied insurance rates, customer claims experiences and features. For shoppers looking for cheap rates, we always recommend comparing quotes from multiple insurers to find the best price.
Below we list the top 10 biggest insurers in the U.S. and provide more detail regarding what you should know about each of them. Click on any of the links in the table below to learn more about a particular insurer.
Rank | Auto insurance company | Premiums written ($bn) | Market share |
|---|---|---|---|
| 1 | State Farm | $41.1 | 16% |
| 2 | Geico | $35.2 | 13% |
| 3 | Progressive | $32.3 | 12% |
| 4 | Allstate | $23.8 | 9% |
| 5 | USAA | $15.2 | 6% |
| 6 | Liberty Mutual | $12.1 | 5% |
| 7 | Farmers | $10.7 | 4% |
| 8 | Nationwide | $6.6 | 3% |
| 9 | American Family | $5.8 | 2% |
| 10 | Travelers | $5.5 |
1. State Farm
State Farm is a great auto insurance company for anyone who wants a local agent, a personalized experience and cheaper-than-average rates.
- Average six-month premium: $307
- Market share: 16%
- Premiums written: $41.1 bn
- ValuePenguin rating: 4/5
- J.D. Power customer satisfaction score: 881
- Read our full State Farm review
State Farm is the largest auto insurance company in the U.S. and possesses 16% of the total available market share. Over 15% of dollars spent on private passenger auto premiums in the U.S. is paid to State Farm.
The company currently employs approximately 60,000 employees and has nearly 19,000 agents. State Farm operates as a mutual insurance company, meaning that it’s owned by its policyholders.
Among the largest widely available car insurers in this list, State Farm offered the cheapest car insurance rates in most parts of the U.S.
>> LEARN MORE: Cheapest Car Insurance Companies