Top 10 Writers Of Commercial Auto Insurance By Direct Premiums Written, 2021

($000)

Rank Group/company Direct premiums written (1) Market share (2)
1 Progressive Corp. $8,674,980 16.2%
2 Travelers Companies Inc. 2,973,806 5.6
3 Liberty Mutual 2,055,875 3.8
4 Old Republic International Corp. 2,019,243 3.8
5 Nationwide Mutual Group 1,683,255 3.1
6 Berkshire Hathaway Inc. 1,681,737 3.1
7 Zurich Insurance Group 1,612,363 3.0
8 Auto-Owners Insurance Co. 1,412,449 2.6
9 Allstate Corp. 1,146,522 2.1
10 W.R. Berkley Corp. 1,098,849 2.1
(1) Before reinsurance transactions, includes state funds. (2) Based on U.S. total, includes territories. Source: NAIC data, sourced from S&P Global Market Intelligence, Insurance Information Institute.