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

($000)

Rank Group/company Direct premiums written (1) Market share (2)
1 Chubb Ltd. $22,323,908 5.6%
2 Travelers Companies Inc. 19,816,342 4.9
3 Liberty Mutual 19,473,757 4.9
4 Zurich Insurance Group 14,676,588 3.7
5 Berkshire Hathaway Inc. 13,198,188 3.3
6 American International Group (AIG) 13,119,540 3.3
7 CNA Financial Corp. 12,161,672 3.0
8 Hartford Financial Services 10,761,401 2.7
9 Progressive 10,282,191 2.6
10 Nationwide Mutual Group 9,763,153 2.4
(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.