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Top 10 Writers Of Private Flood Insurance By Direct Premiums Written, 2024 (1)

Rank Group/company Direct premiums written (1) Market share (2)
1 AXA $159,792 13.0%
2 Assurant Inc. 141,687 11.5
3 MS&AD Insurance 132,085 10.7
4 Berkshire Hathaway Inc. 132,035 10.7
5 Liberty Mutual 92,687 7.5
6 Swiss Re Ltd. 77,548 6.3
7 American International Group (AIG) 72,418 5.9
8 Allstate Corp. 66,688 5.4
9 Sompo 59,687 4.8
10 Chubb Ltd. 54,152 4.4

(1) Private flood includes both commercial and private residential coverage, primarily first-dollar standalone policies that cover the flood peril and excess flood. Excludes sewer/water backup and the crop flood peril.
(2) Before reinsurance transactions.
(3) Based on U.S. total, excluding territories

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

Top 10 Writers Of Private Flood Insurance By Direct Premiums Written, 2023 (1)

($000)
Rank Group/company Direct premiums written (2) Market share (3)
1 Zurich Insurance Group $165,972 12.1%
2 Berkshire Hathaway Inc. 161,266 11.8
3 AXA 144,462 10.5
4 Assurant Inc. 123,545 9.0
5 American International Group (AIG) 119,244 8.7
6 Liberty Mutual 87,811 6.4
7 Swiss Re Ltd. 77,037 5.6
8 MS&AD Insurance 76,243 5.6
9 Sompo 64,683 4.7
10 Allstate Corp. 54,988 4.0

(1) Private flood includes both commercial and private residential coverage, primarily first-dollar standalone policies that cover the flood peril and excess flood. Excludes sewer/water backup and the crop flood peril.
(2) Before reinsurance transactions.
(3) Based on U.S. total, excluding territories

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

Top 10 Writers Of Private Flood Insurance By Direct Premiums Written, 2022 (1)

($000)
Rank Group/company Direct premiums written (2) Market share (3)
1 American International Group (AIG) $173,244 14.0%
2 Zurich Insurance Group 147,805 11.9
3 Assurant Inc. 120,520 9.71
4 AXA 117,210 9.4
5 Berkshire Hathaway Inc. 101,830 8.2
6 Swiss Re Ltd. 72,549 5.9
7 Sompo 71,000 5.7
8 Liberty Mutual 70,910 5.7
9 Chubb 48,238 3.9
10 Allstate Corp. 44,280 3.6

(1) Private flood includes both commercial and private residential coverage, primarily first-dollar standalone policies that cover the flood peril and excess flood. Excludes sewer/water backup and the crop flood peril.
(2) Before reinsurance transactions.
(3) Based on U.S. total, includes territories.

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

Top 10 Writers Of Private Flood Insurance By Direct Premiums Written, 2021 (1)

($000)
Rank Group/company Direct premiums written (2) Market share (3)
1 Zurich Insurance Group $168,788 16.0%
2 American International Group (AIG) 156,871 14.9
3 Assurant Inc. 107,151 10.2
4 AXA 71,163 6.8
5 Swiss Re Ltd 60,763 5.8
6 Liberty Mutual 59,941 5.7
7 Berkshire Hathaway Inc. 52,113 5.0
8 Arch Capital Group Ltd. 48,821 4.7
9 Chubb 44,221 4.2
10 Allstate Corp. 33,664 3.2

(1) Private flood includes both commercial and private residential coverage, primarily first-dollar standalone policies that cover the flood peril and excess flood. Excludes sewer/water backup and the crop flood peril.
(2) Before reinsurance transactions.
(3) Based on U.S. total, includes territories.

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

Top 10 Writers Of Private Flood Insurance By Direct Premiums Written, 2020 (1)

($000)
Rank Group/company (2) Direct premiums written (3) Market share (4)
1 Zurich Insurance Group $98,749 13.8%
2 Assurant Inc. 97,374 13.6
3 American International Group (AIG) 75,318 10.6
4 AXA 68,696 9.6
5 Swiss Re Ltd. 67,471 9.5
6 Arch Capital Group Ltd. 49,678 7.0
7 Berkshire Hathaway Inc. 41,417 5.8
8 Liberty Mutual 38,601 5.4
9 Allstate Corp. 35,584 5.0
10 MAPFRE 27,123 3.8

(1) Private flood includes both commercial and private residential coverage, primarily first-dollar standalone policies that cover the flood peril and excess flood. Excludes sewer/water backup and the crop flood peril.
(2) Does not include FM Global, which reclassified private flood insurance as part of allied lines in 2019. FM Global had $300 million in direct premiums written for private flood insurance in 2018 or 43 percent of the total U.S. private flood market.
(3) Before reinsurance transactions.
(4) Based on U.S. total, includes territories.

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

Top 10 Writers Of Private Flood Insurance By Direct Premiums Written, 2019 (1)

($000)
Rank Group/company (2) Direct premiums written (3) Market share (4)
1 Assurant Inc. $94,056 16.9%
2 Zurich Insurance Group 87,613 15.7
3 Swiss Re Ltd. 73,321 13.2
4 American International Group (AIG) 56,998 10.2
5 AXA 38,702 7.0
6 Arch Capital Group Ltd. 37,967 6.8
7 Liberty Mutual 25,032 4.5
8 Berkshire Hathaway Inc. 24,652 4.4
9 Alleghany Corp. 21,799 3.9
10 Allianz 21,661 3.9

(1) Private flood includes both commercial and private residential coverage, primarily first-dollar standalone policies that cover the flood peril and excess flood. Excludes sewer/water backup and the crop flood peril.
(2) Does not include FM Global, which reclassified private flood insurance as part of allied lines in 2019. FM Global had $300 million in direct premiums written for private flood insurance in 2018 or 43 percent of the total U.S. private flood market.
(3) Before reinsurance transactions.
(4) Based on U.S. total, includes territories.

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

Top 10 Writers Of Private Flood Insurance By Direct Premiums Written, 2018 (1)

($000)
Rank Group/company Direct premiums written (2) Market share (3)
1 FM Global $299,749 42.7%
2 Assurant Inc. 83,042 11.8
3 Zurich Insurance Group 77,128 11.0
4 American International Group (AIG) 59,759 8.5
5 Swiss Re Ltd. 49,688 7.1
6 Berkshire Hathaway Inc. 19,837 2.8
7 Liberty Mutual 19,329 2.8
8 Alleghany Corp. 17,571 2.5
9 Allianz Group 15,924 2.3
10 MAPFRE 14,603 2.1

(1) Private flood includes both commercial and private residential coverage, primarily first-dollar stand-alone policies that cover the flood peril and excess flood. Excludes sewer/water backup and the crop flood peril.
(2) Before reinsurance transactions.
(3) Based on U.S. total, includes territories.

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

Top 10 Writers of Private Flood Insurance By Direct Premiums Written, 2017 (1)

($000)
Rank Group/company Direct premiums written (2) Market share (3)
1 FM Global $237,334 40.3%
2 Assurant Inc. 89,901 15.3
3 Zurich Insurance Group (4) 62,749 10.7
4 American International Group (AIG) 58,233 9.9
5 Swiss Re AG 26,336 4.5
6 Berkshire Hathaway Inc. 17,120 2.9
7 Liberty Mutual 15,460 2.6
8 Alleghany Corp. 13,197 2.2
9 MAPFRE SA 13,103 2.2
10 Allianz 11,705 2.0
  Total, all insurers $589,147 100.0%

(1) Private flood includes both commercial and private residential coverage, primarily first-dollar standalone policies that cover the flood peril and excess flood. Excludes sewer/water backup and the crop flood peril.
(2) Before reinsurance transactions.
(3) Based on U.S. total, includes territories.
(4) Data for Farmers Insurance Group of Companies and Zurich Financial Group (which owns Farmers’ management company) are reported separately by S&P Global Market Intelligence.

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

Top 10 Writers of Private Flood Insurance By Direct Premiums Written, 2016

($000)
Rank Group/Company Direct premiums written (1) Market share  (2)
1 FM Global  $206,345 54.9%
2 American International Group 63,460 16.9
3 Swiss Re Ltd. 33,378 8.9
4 MAPFRE SA 14,345 3.8
5 Alleghany Corp. 13,080 3.5
6 Allianz Group 11,354 3.0
7 Chubb Ltd.  9,839 2.6
8 Validus Holdings Ltd.  6,444 1.7
9 Munich-American Holding Corp.  5,415 1.4
10 United Surety & Indemnity Co. 4,215 1.1
  Total, all insurers $376,134 100.0%

(1) Private flood includes both commercial and private residential coverage, primarily first-dollar standalone policies
that cover the flood peril and excess flood. Excludes sewer/water backup and the crop flood peril.
(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 Private Flood Insurance By Direct Premiums Written, 2025 (1)

($000)
Rank Group/company Direct premiums written (1) Market share (2)
1 MS&AD Insurance $174,080 14.2%
2 AXA 166,891 13.7
3 Assurant Inc. 120,296 9.8
4 Berkshire Hathaway Inc. 113,252 9.3
5 Liberty Mutual 99,881 8.2
6 Allstate Corp. 71,413 5.8
7 American International Group (AIG) 70,211 5.8
8 Swiss Re Ltd. 60,251 4.9
9 Chubb Ltd. 55,582 4.6
10 Sompo 47,270 3.9

(1) Private flood includes both commercial and private residential coverage, primarily first-dollar standalone policies that cover the flood peril and excess flood. Excludes sewer/water backup and the crop flood peril.
(2) Before reinsurance transactions.
(3) Based on U.S. total, excluding territories

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