Top 10 Writers of Ocean Marine Insurance By Direct Premiums Written, 2020

($000)

Rank Group/company Direct premiums written (1) Market share (2)
1 American International Group (AIG) $626,517 15.0%
2 Berkshire Hathaway Inc. 354,030 8.5
3 Travelers Companies Inc. 294,127 7.1
4 Chubb Ltd. 265,605 6.4
5 Tokio Marine Group 255,358 6.1
6 Starr International Co. 255,182 6.1
7 Hartford Financial Services 170,221 4.1
8 Great American Financial Group Inc. 153,234 3.7
9 CNA Financial Corp. 150,142 3.6
10 Intact Financial Corp. 141,735 3.4
(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.