There are dozens of auto insurance companies in the U.S., so you have ample choices when you want to buy car insurance. Below is a list of car insurance companies in the top 50 for market share, with websites and the location of headquarters. Remember that not all auto insurance companies operate in every state.

List of car insurance companies & websites

Rank Company Website Headquarters
1 State Farm Bloomington, IL
2 Berkshire Hathaway Inc. (Geico) Omaha, NE
3 Progressive Mayfield, OH
4 Allstate Corp. Northbrook, IL
5 USAA San Antonio, TX
6 Liberty Mutual Boston, MA
7 Farmers Insurance Group Woodland Hills, CA
8 Nationwide Mutual Group Columbus, OH
9 Travelers Cos. Saint Paul, MN
10 American Family Insurance Group Madison, WI
11 Auto Club Exchange Costa Mesa, CA
12 Erie Insurance Erie, PA
13 CSAA Insurance Exchange Walnut Creek, CA
14 National General Holdings Corp. New York, NY
15 Mercury General Corp. Los Angeles, CA
16 Auto-Owners Insurance Lansing, MI
17 MetLife New York, NY
18 Hartford Financial Services Hartford, CT
19 Auto Club Insurance Association Dearborn, MI
20 MAPFRE Webster, MA
21 Kemper Corp. Chicago, IL
22 Amica Mutual Insurance Co. Lincoln, RI
23 Infinity P&C Corp. Birmingham, AL
24 COUNTRY Financial Bloomington, IL
25 Hanover Insurance Group Worcester, MA
26 NJM Insurance West Trenton, NJ
27 Southern Farm Bureau Casualty Ridgeland, MS
28 Sentry Insurance Stevens Point, WI
29 Shelter Insurance Columbia, MO
30 Alfa Mutual Group Montgomery, AL
31 Ameriprise Financial Minneapolis, MN
32 Chubb Ltd. Whitehouse Station, NJ
33 Texas Farm Bureau Insurance Cos. Waco, TX
34 Tennessee Farmers Insurance Cos. Columbia, TN
35 Cincinnati Financial Corp. Fairfield, OH
36 Plymouth Rock of New Jersey Red Bank, NJ
37 Grange Mutual Casualty Co. Columbus, OH
38 Kentucky Farm Bureau Mutual Insurance Co. Louisville, KY
39 North Carolina Farm Bureau Insurance Raleigh, NC
40 State Auto Insurance Cos. Columbus, OH
41 Farm Bureau Financial Services West Des Moines, IA
42 Loya Insurance El Paso, TX
43 American National Insurance Galveston, TX
44 Safety Insurance Group Inc. Boston, MA
45 Horace Mann Educators Corp. Springfield, IL
46 Markel Corp. Glen Allen, VA
47 Arbella Insurance Quincy, MA
48 Michigan Farm Bureau Lansing, MI
49 Westfield Insurance Westfield Center, OH
50 Plymouth Rock Co. Boston, MA
Source: S&P Global Market Intelligence