Top 10 Writers Of Commercial Lines Insurance By Direct Premiums Written, 2020

($000)

Rank Group/company Direct premiums written (1) Market share (2)
1 Chubb Ltd. $19,399,859 5.5%
2 Travelers Companies Inc. 18,815,626 5.3
3 Liberty Mutual 17,057,397 4.8
4 Zurich Insurance Group 13,358,067 3.8
5 American International Group (AIG) 11,887,670 3.3
6 Berkshire Hathaway Inc. 11,601,352 3.3
7 CNA Financial Corp. 11,302,724 3.2
8 Hartford Financial Services 9,575,425 2.7
9 Nationwide Mutual Group 8,812,305 2.5
10 Tokio Marine Group 7,758,808 2.2
(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.