United States Motor Insurance Top Companies
GEICO (Berkshire Hathaway Inc.)
Progressive Corp.
Allstate Corp.
United Services Automobile Association (USAA)
Liberty Mutual Holding Co. Inc.
*Disclaimer: Top companies sorted in no particular order

United States Motor Insurance Market Concentration

United States Motor Insurance Company List
State Farm Mutual Automobile Insurance Co.
GEICO (Berkshire Hathaway Inc.)
Progressive Corp.
Allstate Corp.
United Services Automobile Association (USAA)
Liberty Mutual Holding Co. Inc.
Farmers Insurance Group (Zurich)
Nationwide Mutual Insurance Co.
American Family Insurance
Travelers Companies Inc.
Erie Indemnity Co.
Auto-Owners Insurance Group
The Hartford Financial Services Group
CSAA Insurance Group
Kemper Corp.
Amica Mutual Insurance Co.
Root Inc.
Lemonade Inc. (Metromile)
Chubb Ltd.
AXA XL (Commercial Auto)
Tokio Marine (Philadelphia Insurance)
Zurich North America
Sentry Insurance
Markel Corp.
Assurant Inc.



