Top 10 Writers of Inland Marine Insurance By Direct Premiums Written, 2021

($000)

Rank Group/company Direct premiums written (1) Market share (2)
1 Liberty Mutual $4,077,531 13.7%
2 CNA Financial Corp. 3,637,508 12.2
3 Chubb Ltd. 1,743,341 5.9
4 Allianz Group 1,401,633 4.7
5 American International Group (AIG) 1,370,515 4.6
6 Nationwide Mutual Group 1,145,187 3.8
7 Assurant Inc. 1,105,613 3.7
8 Zurich Insurance Group 977,282 3.3
9 FM Global 809,406 2.7
10 Travelers Companies Inc. 788,738 2.7
(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.