The insurance sector has a significant weight in the US economy, thus directly and indirectly influencing the trend of GDP. US insurance companies play an important role not only in the country’s economy, but also globally through risk management.
Considering, therefore, the importance that they have, in this work the ranking of US insurance companies will be presented on the basis of assets, market capitalization, premiums collected and market shares.
Below are the 10 US largest insurance companies by total assets. At the top of the list is Prudential Financial with USD 926 billion, followed by Berkshire Hathaway with USD 912 billion and Metlife with USD 773 billion.
| Rank | Company | Total assets |
| 1 | Prudential Financial | 926 |
| 2 | Berkshire Hathaway | 912 |
| 3 | Metlife | 773 |
| 4 | TIAA | 654 |
| 5 | American International Group | 523 |
| 6 | New York Life | 359 |
| 7 | Lincoln Financial Group | 364 |
| 8 | Jackson National Life | 329 |
| 9 | MassMutual | 323 |
| 10 | John Hancock Life | 322 |
If, on the other hand, we refer to market capitalization, at the top of the ranking of the largest insurance companies in the USA is Berkshire Hathaway with 646 billion USD, followed by UnitedHealth Group with 394 billion USD and Anthem Inc with 91 billion USD.
| Rank | Company | Market cap. |
| 1 | Berkshire Hathaway | 646 |
| 2 | UnitedHealth Group | 394 |
| 3 | Anthem Inc | 91 |
| 4 | Cigna Corporation | 70 |
| 5 | Progressive Corp | 56 |
| 6 | Humana | 53 |
| 7 | Metlife | 52 |
| 8 | American International Group | 46 |
| 9 | Prudential Financial | 41 |
| 10 | Allstate Corp | 40 |
Below are the largest US life insurance companies in in terms of direct premiums written:
- MetLife
- Equitable Holdings
- Prudential Financial
- New York Life
- MassMutual
- Principal Financial Group
- Lincoln National Corp
- Western & Southern Financial Group
- Transamerica
- American International Group
Below are the largest US property and casualty insurance companies in terms of direct premiums written:
- State Farm Mutual
- Berkshire Hathaway
- Progressive Corporation
- Allstate Corp
- Liberty Mutual
- Travelers Companies
- USAA
- Chubb Limited
- Farmers Insurance Group
- Nationwide Mutual Group
Below are the largest US auto insurance companies by market share:
- State Farm
- Geico
- Progressive
- Allstate
- USAA
- Liberty Mutual
- Farmers Insurance Group
- Nationwide
- American Family
- Travelers
The data used, in the rankings of US insurance companies by total assets, market capitalization, amount of premiums collected and market share, were collected from the main financial sites. The data of total assets are expressed in billions of USD for all insurance companies and refers to 30/06/2021 for Prudential Financial, Berkshire Hathaway, Metlife, American International Group, Lincoln Financial Group and John Hancock Life, instead, refers to 31/12/2020 for TIAA, New York Life, Jackson National Life, MassMutual. Regarding the market capitalization, the data are expressed in billions of USD and refers to 20/08/2021 for all insurance companies. Finally, in the case of the amount of premiums collected and market shares, the data refers to 30/06/2021 for all insurance companies.