Sure, here are the top 10 insurance companies in the USA (as of 2021) based on their total assets:

State Farm
Berkshire Hathaway
Progressive
Allstate
Liberty Mutual
Travelers
USAA
Chubb
Farmers
Nationwide
It's worth noting that rankings may vary depending on the metric used and the time period measured. However, these are generally considered to be the top 10 insurance companies in the USA.