The following are the top 10 insurance companies in the U.S. ranked by assets. Prudential Financial Inc is the largest insurance company in the United States in terms of total assets. With over 50,000 employees, it offers a wide suite of products and services to individuals and institutional clients including term and universal life insurance, variable and fixed annuities, and retirement and investment services. It is also one of the leading investment managers with total AUM of over $1.5 trillion as of September 30, 2019.

Berkshire Hathaway Inc is the second-largest insurance company in the U.S. by assets. It provides a wide array of property & casualty insurance and reinsurance services through numerous subsidiaries. GEICO, the leading insurance subsidiary of Berkshire, is the second largest auto insurance company in the United States (after State Farm) with over 17 million auto policies in force and about 29 million insured vehicles.

Metlife, based in New York City, is the third-largest insurance company in the U.S. by assets. It provides life, dental, disability and property/casualty insurance, annuities, employee benefits, asset management and other services. MetLife’s shares are traded on the New York Stock Exchange under the ticker symbol MET, with a market capitalization of $48 billion. The company was established in 1868 and employs about 48,000 people.

 Top 10 U.S. Insurance Companies by assets

Rank Company Total assets, US$b  Balance sheet
1 Prudential Financial 873.825 06/30/2019
2 Berkshire Hathaway 760.108 06/30/2019
3 Metlife 732.167 06/30/2019
4 TIAA 568.190 12/31/2018
5 American International Group 522.269 06/30/2019
6 New York Life 324.730 12/31/2018
7 Lincoln Financial Group 322.259 06/30/2019
8 John Hancock Life Insurance 284.686 06/30/2019
9 State Farm 272.518 12/31/2018
10 Northwestern Mutual 272.167 12/31/2018

Top U.S. Insurance Companies by market capitalization

The following table shows the largest U.S. insurance companies based on market capitalization as of January 17, 2020.

Rank Company Market capitalization, US$b
1 Berkshire Hathaway 561.6 B 
2 UnitedHealth Group 284.9 B
3 Cigna Corporation 78.8 B
4 Anthem Inc 77.4 B
5 Metlife Inc 48.0 B
6 American International Group 45.6 B
7 Progressive Corp 44.1 B
8 Aflac Inc 38.7 B
9 Prudential Financial 38.4 B
10 Allstate Corp 37.6 B