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Top 10 Writers Of Commercial Lines Insurance By Direct Premiums Written, 2024

($000)
Rank Group/company Direct premiums written (1) Market share (2)
1 Travelers Companies Inc. $26,232,201 5.2%
2 Chubb Ltd. 26,123,774 5.2
3 Liberty Mutual 19,970,975 4.0
4 Berkshire Hathaway Inc. 19,202,724 3.8
5 Zurich Insurance Group 17,991,721 3.6
6 American International Group (AIG) 14,151,844 2.8
7 Hartford Financial Services 13,829,345 2.8
8 CNA Financial Corp. 13,450,851 2.7
9 Progressive 12,547,795 2.5
10 Tokio Marine 10,255,294 2.1

(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.

Top 10 Writers Of Commercial Lines Insurance By Direct Premiums Written, 2023

($000)
Rank Group/company Direct premiums written (1) Market share (2)
1 Chubb Ltd. $25,513,446 5.5%
2 Travelers Companies Inc. 24,126,398 5.2
3 Liberty Mutual 20,191,208 4.3
4 Berkshire Hathaway Inc. 18,434,943 4.0
5 Zurich Insurance Group 18,021,524 3.9
6 American International Group (AIG) 14,102,731 3.0
7 CNA Financial Corp. 12,782,325 2.7
8 Hartford Financial Services 12,738,362 2.7
9 Progressive 11,482,962 2.5
10 Tokio Marine 9,846,421 2.1

(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.

Top 10 Writers Of Commercial Lines Insurance By Direct Premiums Written, 2022

($000)
Rank Group/company Direct premiums written (1) Market share (2)
1 Chubb Ltd. $24,488,270 5.7%
2 Travelers Companies Inc. 21,709,901 5.0
3 Liberty Mutual 20,070,946 4.6
4 Zurich Insurance Group 17,128,164 4.0
5 Berkshire Hathaway Inc. 16,499,088 3.8
6 American International Group (AIG) 13,614,198 3.1
7 CNA Financial Corp. 12,253,482 2.8
8 Hartford Financial Services 11,711,796 2.7
9 Progressive 10,934,117 2.5
10 Nationwide Mutual Group 10,390,834 2.4

(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 Commercial Lines Insurance By Direct Premiums Written, 2021

($000)
Rank Group/company Direct premiums written (1) Market share (2)
1 Chubb Ltd. $22,323,908 5.6%
2 Travelers Companies Inc. 19,816,342 4.9
3 Liberty Mutual 19,473,757 4.9
4 Zurich Insurance Group 14,676,588 3.7
5 Berkshire Hathaway Inc. 13,198,188 3.3
6 American International Group (AIG) 13,119,540 3.3
7 CNA Financial Corp. 12,161,672 3.0
8 Hartford Financial Services 10,761,401 2.7
9 Progressive 10,282,191 2.6
10 Nationwide Mutual Group 9,763,153 2.4

(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 Commercial Lines Insurance By Direct Premiums Written, 2020

($000)
Rank Group/company Direct premiums written (1) Market share (2)
1 Chubb Ltd. $19,399,859 5.5%
2 Travelers Companies Inc. 18,815,626 5.3
3 Liberty Mutual 17,057,397 4.8
4 Zurich Insurance Group 13,358,067 3.8
5 American International Group (AIG) 11,887,670 3.3
6 Berkshire Hathaway Inc. 11,601,352 3.3
7 CNA Financial Corp. 11,302,724 3.2
8 Hartford Financial Services 9,575,425 2.7
9 Nationwide Mutual Group 8,812,305 2.5
10 Tokio Marine Group 7,758,808 2.2

(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 Commercial Lines Insurance By Direct Premiums Written, 2019

($000)
Rank Group/company Direct premiums written (1) Market share (2)
1 Travelers Companies Inc. $18,666,277 5.5%
2 Chubb Ltd. 18,567,051 5.5
3 Liberty Mutual 16,794,384 5.0
4 Zurich Insurance Group 12,612,294 3.7
5 American International Group (AIG) 12,220,209 3.6
6 CNA Financial Corp. 10,602,312 3.1
7 Berkshire Hathaway Inc. 10,514,633 3.1
8 Hartford Financial Services 9,686,418 2.9
9 Nationwide Mutual Group 8,381,732 2.5
10 Tokio Marine Group 7,413,819 2.2

(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 Commercial Lines Insurance By Direct Premiums Written, 2018

($000)
Rank Group/company Direct premiums written (1) Market share (2)
1 Travelers Companies Inc. $17,580,086 5.5%
2 Chubb Ltd. 17,533,247 5.5
3 Liberty Mutual 15,910,049 5.0
4 American International Group (AIG) 12,715,146 4.0
5 Zurich Insurance Group 12,171,979 3.8
6 Berkshire Hathaway Inc. 10,341,805 3.2
7 CNA Financial Corp. 10,216,730 3.2
8 Hartford Financial Services 9,071,385 2.8
9 Nationwide Mutual Group 7,951,827 2.5
10 Tokio Marine Group 6,959,032 2.2

(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 Commercial Lines Insurance By Direct Premiums Written, 2017

($000)
Rank Group/company Direct premiums written (1) Market share (2)
1 Chubb Ltd. $16,850,450 5.5%
2 Travelers Companies Inc. 16,737,743 5.5
3 Liberty Mutual 15,606,473 5.1
4 American International Group (AIG) 12,779,666 4.2
5 Zurich Insurance Group (3) 12,748,657 4.2
6 CNA Financial Corp. 9,969,788 3.3
7 Berkshire Hathaway Inc. 8,555,760 2.8
8 Nationwide Mutual Group 8,072,052 2.7
9 Hartford Financial Services 7,786,169 2.6
10 Tokio Marine Group 6,467,663 2.1

(1) Before reinsurance transactions, includes state funds.
(2) Based on U.S. total, includes territories.
(3) 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 Commercial Lines Insurance By Direct Premiums Written, 2016

($000)
Rank Group/company Direct premiums written (1) Market share (2)
1 Chubb Ltd. $16,528,891 5.6%
2 Travelers Companies Inc. 16,463,566 5.6
3 Liberty Mutual 15,056,251 5.1
4 American International Group (AIG) 13,144,961 4.4
5 Zurich Insurance Group (3) 12,554,597 4.2
6 CNA Financial Corp. 9,763,122 3.3
7 Nationwide Mutual Group 8,335,275 2.8
8 Hartford Financial Services 7,679,737 2.6
9 Berkshire Hathaway Inc. 7,650,236 2.6
10 Tokio Marine Group 6,256,196 2.1

(1) Before reinsurance transactions, includes state funds.
(2) Based on U.S. total, includes territories.
(3) 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 Commercial Lines Insurance By Direct Premiums Written, 2015

($000)
Rank Group/company Direct premiums written (1) Market share (2)
1 American International Group (AIG) $16,980,061 5.8%
2 Chubb Ltd. (3) 16,675,193 5.7
3 Travelers Companies Inc. 16,347,492 5.6
4 Liberty Mutual 13,801,267 4.7
5 Zurich Insurance Group (4) 13,403,445 4.6
6 CNA Financial Corp. 9,203,419 3.2
7 Nationwide Mutual Group 8,401,984 2.9
8 Hartford Financial Services 7,478,308 2.6
9 Berkshire Hathaway Inc. 7,056,856 2.4
10 Tokio Marine Group 5,956,554 2.0

(1) Before reinsurance transactions, includes state funds.
(2) Based on U.S. total, includes territories.
(3) Chubb Ltd. data reflect the 2015 merger with Ace Ltd.
(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 COMMERCIAL LINES INSURANCE BY DIRECT PREMIUMS WRITTEN, 2014

($000)
Rank Group/company Direct premiums written (1) Market share (2)
1 American International Group (AIG) $17,116,239 6.0%
2 Travelers Companies Inc. 16,164,807 5.7
3 Liberty Mutual 14,047,958 5.0
4 Zurich Insurance Group (3) 10,961,490 3.9
5 ACE Ltd. 8,892,619 3.1
6 CNA Financial Corp. 8,633,944 3.0
7 Nationwide Mutual Group 7,978,557 2.8
8 Chubb Corp. 7,475,185 2.6
9 Hartford Financial Services 7,265,273 2.6
10 Berkshire Hathaway Inc. 5,990,165 2.1

(1) Before reinsurance transactions, includes state funds.
(2) Based on U.S. total, includes territories.
(3) Data for Farmers Insurance Group of Companies and Zurich Financial Group (which owns Farmers' management company) are reported separately by SNL Financial.

Source: SNL Financial LC.

TOP 10 WRITERS OF COMMERCIAL LINES INSURANCE BY DIRECT PREMIUMS WRITTEN, 2013

($000)
Rank Group/company Direct premiums written (1) Market share (2)
1 American International Group $16,503,438 6.1%
2 Travelers Companies Inc. 16,126,917 5.9
3 Liberty Mutual 14,535,081 5.3
4 Zurich Insurance Group (3) 10,816,040 4.0
5 ACE Ltd. 8,691,889 3.2
6 CNA Financial Corp. 8,440,261 3.1
7 Hartford Financial Services 7,370,550 2.7
8 Chubb Corp. 7,343,526 2.7
9 Nationwide Mutual Group 7,338,123 2.7
10 American Financial Group Inc. 4,819,736 1.8

(1) Before reinsurance transactions, includes state funds.
(2) Based on U.S. total, includes territories.
(3) Data for Farmers Insurance Group of Companies and Zurich Financial Group (which owns Farmers' management company) are reported separately by SNL Financial.

Source: SNL Financial LC.

Top 10 Writers Of Commercial Lines Insurance By Direct Premiums Written, 2025

($000)
Rank Group/company Direct premiums written (1) Market share (2)
1 Chubb Ltd. $27,754,147 5.3%
2 Travelers 27,041,429 5.2
3 Liberty Mutual 19,764,577 3.8
4 Berkshire Hathaway Inc. 19,237,443 3.7
5 Zurich Insurance Group 18,219,875 3.5
6 The Hartford 14,924,375 2.9
7 American International Group (AIG) 14,560,369 2.8
8 CNA Financial Corp. 13,593,433 2.6
9 Progressive 11,847,752 2.3
10 Tokio Marine (US) 10,601,422 2.0

(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