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

Rank Group/company Direct premiums written (1) Market share (2)
1 Liberty Mutual $4,141,078 11.7%
2 CNA Financial Corp. 3,030,598 8.6
3 Chubb Ltd. 2,141,432 6.0
4 Allianz 2,022,427 5.7
5 American International Group (AIG) 1,466,151 4.1
6 Nationwide Mutual Group 1,424,015 4.0
7 Zurich Insurance Group 1,390,016 3.9
8 Assurant Inc. 1,217,760 3.4
9 Trupanion Inc. 966,362 2.7
10 Travelers Companies Inc. 945,420 2.7

(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 Inland Marine Insurance By Direct Premiums Written, 2019
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Rank Group/company Direct premiums written (1) Market share (2)
1 Liberty Mutual $3,782,758 14.3%
2 CNA Financial Corp. 3,528,743 13.4
3 American International Group (AIG) 1,634,074 6.2
4 Chubb Ltd. 1,353,606 5.1
5 Allianz Group 1,261,850 4.8
6 FM Global 1,187,057 4.5
7 Assurant Inc. 1,171,646 4.4
8 Nationwide Mutual Group 862,838 3.3
9 Travelers Companies Inc. 760,125 2.9
10 Zurich Insurance Group 686,888 2.6

(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 Inland Marine Insurance By Direct Premiums Written, 2020
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Rank Group/company Direct premiums written (1) Market share (2)
1 Liberty Mutual $3,867,057 14.9%
2 CNA Financial Corp. 3,526,965 13.6
3 Chubb Ltd. 1,528,335 5.9
4 American International Group (AIG) 1,105,107 4.3
5 Assurant Inc. 1,026,719 4.0
6 FM Global 982,971 3.8
7 Nationwide Mutual Group 957,525 3.7
8 Allianz Group 842,580 3.3
9 Zurich Insurance Group 758,015 2.9
10 Travelers Companies Inc. 750,870 2.9

(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 Inland Marine Insurance By Direct Premiums Written, 2021
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($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.

 
Top 10 Writers of Inland Marine Insurance By Direct Premiums Written, 2022
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($000)

Rank Group/company Direct premiums written (1) Market share (2)
1 Liberty Mutual $4,150,926 12.5%
2 CNA Financial Corp. 3,385,489 10.2
3 Chubb Ltd. 2,011,152 6.1
4 Allianz Group 1,843,091 5.6
5 American International Group (AIG) 1,607,604 4.9
6 Nationwide Mutual Group 1,300,116 3.9
7 Zurich Insurance Group 1,272,625 3.8
8 Assurant Inc. 1,221,010 3.7
9 Travelers Companies Inc. 860,072 2.6
10 Trupanion Inc. 818,629 2.5

(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.