Top 10 Writers Of Commercial Lines Insurance By Direct Premiums Written, 2018

($000)

Rank Group/company Direct premiums written (1) Market share (2)
1 Travelers Companies Inc. $17,580,086 5.5%
2 Chubb Ltd. 17,533,247 5.5
3 Liberty Mutual 15,910,049 5.0
4 American International Group (AIG) 12,715,146 4.0
5 Zurich Insurance Group 12,171,979 3.8
6 Berkshire Hathaway Inc. 10,341,805 3.2
7 CNA Financial Corp. 10,216,730 3.2
8 Hartford Financial Services 9,071,385 2.8
9 Nationwide Mutual Group 7,951,827 2.5
10 Tokio Marine Group 6,959,032 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.