There are a number of ways to rank the size of insurance companies. Insurance companies come in many sizes and specialize in different policy lines, from health to life to property & casualty. Companies can be measured by their market capitalization or by using sales figures. Here, we examine the top 10 largest insurance companies by market cap, market share, and revenues.
1. State Farm: State Farm is the largest auto and home insurer in the United States. It offers a wide range of insurance products, including auto, home, renters, life, and health insurance. State Farm is known for its extensive agent network and customer service.
2. Berkshire Hathaway (GEICO): GEICO, a subsidiary of Berkshire Hathaway, is the second-largest auto insurer in the United States. It primarily focuses on providing affordable auto insurance through its direct-to-consumer model. GEICO is known for its humorous advertising campaigns and competitive rates.

3. Progressive: Progressive is one of the largest auto insurance providers in the United States. It offers a variety of insurance products, including auto, home, renters, and motorcycle insurance. Progressive is well-known for its innovative usage-based insurance program, Snapshot, which rewards safe driving habits.
4. Allstate: Allstate is a major insurer that offers a wide range of insurance products, including auto, home, renters, life, and business insurance. It is known for its extensive agent network and various coverage options. Allstate also provides roadside assistance services through its subsidiary, Allstate Motor Club.
5. USAA: USAA primarily serves military members and their families, offering a comprehensive range of insurance products, including auto, home, renters, and life insurance. USAA is highly regarded for its exceptional customer service and commitment to serving the military community.

7. Farmers Insurance Group: Farmers Insurance Group offers a wide array of insurance products, including auto, home, renters, life, and business insurance. It operates through a network of independent agents and provides various discounts and customizable coverage options.
8. Nationwide Mutual Group: Nationwide is a mutual insurance company that offers a range of insurance and financial products. It provides auto, home, renters, life, and commercial insurance. Nationwide is known for its “On Your Side” customer service approach.

9. American Family Insurance Group: American Family Insurance Group provides a variety of insurance products, including auto, home, renters, life, and business insurance. It operates through a network of agents and offers personalized coverage options.
10. Travelers: Travelers is a leading provider of property and casualty insurance products for individuals and businesses. It offers auto, home, renters, business, and specialty insurance. Travelers is known for its extensive range of coverage options and risk management services.