The largest auto insurance companies by market share

The landscape of personal lines auto insurance is dominated by large players, with the top five insurers controlling more than 50 percent of the market and the top 10 controlling 70 percent nationally. Richard Attanasio, vice president of property/casualty ratings for A.M. Best, notes that there are similar situations in most states.

Branding and marketing are important considerations in this highly competitive market, says Attanasio. Predictive analytics and data segmentation (meaning “big data”) will become increasingly important for auto insurers.

Rank Company/Group 2013 Direct Premiums Written ($) Market share %
1 State Farm Group 33,611,001 18.48
2 Berkshire Hathaway Insurance 18,622,626 10.24
3 Allstate Insurance Group 18,067,452 9.93
4 Progressive Insurance Group 15,373,142 8.45
5 Farmers Insurance Group 9,880,905 5.43
6 USAA Group 9,167,242 5.04
7 Liberty Mutual Insurance Cos. 9,036,455 4.97
8 Nationwide Group 7,279,835 4.00
9 American Family Insurance Group 3,441,682 1.89
10 Travelers Group 3,178,692 1.75
11 Hartford Insurance Group 2,350,105 1.29
12 Auto Club Enterprises Insurance Group 2,246,087 1.23
13 Erie Insurance Group 2,219,541 1.22
14 MetLife Personal Lines Group 2,207,198 1.21
15 Mercury General Group 2,134,485 1.17
16 CSAA Insurance Group 2,007,160 1.10
17 Auto-Owners Insurance Group 1,778,653 0.98
18 Auto Club Group 1,570,344 0.86
19 MAPFRE North America Group 1,517,680 0.83
20 National General Group 1,278,241 0.70
21 Infinity P&C Group 1,254,502 0.69
22 Amica Mutual Group 1,082,306 0.60
23 COUNTRY Financial PC Group 969,705 0.53
24 The Hanover Insurance Group Property & Casualty Cos. 963,371 0.53
25 NJM Insurance Group 943,938 0.52
Source: A.M. Best. Market share rankings are based on direct premiums written in 2013.

Insure.com has customer satisfaction scores and A.M. Best ratings to help you find the best car insurance companies.

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