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Top 10 Writers of Ocean Marine Insurance By Direct Premiums Written, 2023
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($000)

Rank Group/company Direct premiums written (1) Market share (2)
1 American International Group (AIG) $769,344 14.5%
2 Starr International Co. 478,231 9.0
3 Travelers Companies Inc. 359,814 6.8
4 Chubb Ltd. 324,153 6.1
5 Tokio Marine 311,480 5.9
6 Berkshire Hathaway Inc. 231,529 4.4
7 Hartford Financial Services 225,370 4.3
8 Great American Insurance Group 177,888 3.4
9 American Steamship Owners 167,066 3.2
10 Intact Financial Corp. 151,157 2.9

(1) Before reinsurance transactions, includes state funds.
(2) Based on U.S. total, excluding territories.

Source: NAIC data, sourced from S&P Global Market Intelligence, Insurance Information Institute.

 

Archived Tables

Top 10 Writers of Ocean Marine Insurance By Direct Premiums Written, 2019
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($000)

Rank Group/company Direct premiums written (1) Market share (2)
1 American International Group (AIG) $600,325 15.4%
2 Berkshire Hathaway Inc. 318,336 8.1
3 Travelers Companies Inc. 270,889 6.9
4 Chubb Ltd. 265,993 6.8
5 Starr International Co. 231,943 5.9
6 Tokio Marine Group 200,827 5.1
7 Hartford Financial Services 181,520 4.6
8 Allianz Group 168,753 4.3
9 CNA Financial Corp. 137,906 3.5
10 Markel Corp. 134,458 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.

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

 
Top 10 Writers of Ocean Marine Insurance By Direct Premiums Written, 2021
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($000)

Rank Group/company Direct premiums written (1) Market share (2)
1 American International Group (AIG) $697,321 15.0%
2 Berkshire Hathaway Inc. 363,777 7.8
3 Travelers Companies Inc. 317,341 6.8
4 Chubb Ltd. 305,865 6.6
5 Starr International Co. 300,556 6.5
6 Tokio Marine Group 285,455 6.1
7 Hartford Financial Services 181,145 3.9
8 CNA Financial Corp. 168,813 3.6
9 Great American Insurance Group 168,607 3.6
10 Intact Financial Corp. 148,855 3.2

(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.

 
Top 10 Writers of Ocean Marine Insurance By Direct Premiums Written, 2022
Export To Excel

($000)

Rank Group/company Direct premiums written (1) Market share (2)
1 American International Group (AIG) $715,728 15.0%
2 Starr International Co. 357,639 7.5
3 Travelers Companies Inc. 349,402 7.3
4 Chubb Ltd. 305,173 6.4
5 Tokio Marine Group 292,526 6.1
6 Berkshire Hathaway Inc. 233,348 4.9
7 Hartford Financial Services 204,555 4.3
8 American Steamship Owners 161,702 3.4
9 Great American Insurance Group 155,887 3.3
10 Intact Financial Corp. 150,854 3.2

(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.