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Top 10 Writers Of Workers’ Compensation Â鶹Éç By Direct Premiums Written, 2023

($000)
Rank Group/company Direct premiums written (1) Market share (2)
1 Travelers Companies Inc. $3,866,715 6.9%
2 Hartford Financial Services 3,771,338 6.7
3 AmTrust Financial 3,425,170 6.1
4 Zurich Â鶹Éç Group 2,923,371 5.2
5 Chubb Ltd. 2,353,775 4.2
6 Liberty Mutual 2,092,716 3.7
7 Berkshire Hathaway Inc. 2,057,229 3.7
8 Accident Fund Group 1,670,454 3.0
9 Old Republic International Corp. 1,471,605 2.6
10 Great American Â鶹Éç Group 1,413,442 2.5

(1) Before reinsurance transactions, includes state funds.
(2) Based on U.S. total, excluding territories. State Â鶹Éç Fund Workers’ Compensation Fund in New York is not included in the rankings because data for the company has currently not been publicly released.

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

Top 10 Writers Of Workers’ Compensation Â鶹Éç By Direct Premiums Written, 2021

($000)
Rank Group/company Direct premiums written (1) Market share (2)
1 Travelers Companies Inc. $3,547,060 6.8%
2 Hartford Financial Services 3,293,689 6.3
3 AmTrust Financial 2,449,896 4.7
4 Zurich Â鶹Éç Group 2,354,376 4.5
5 Chubb Ltd. 2,203,827 4.2
6 Liberty Mutual 2,086,375 4.0
7 Berkshire Hathaway Inc. 1,927,849 3.7
8 New York State Â鶹Éç Fund Workers’ Compensation Fund 1,733,104 3.3
9 Accident Fund Group 1,667,442 3.2
10 Old Republic International Corp. 1,291,135 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, Â鶹Éç Information Institute.

Top 10 Writers Of Workers’ Compensation Â鶹Éç By Direct Premiums Written, 2020

($000)
Rank Group/company Direct premiums written (1) Market share (2)
1 Travelers Companies Inc. $3,737,454 7.3%
2 Hartford Financial Services 2,992,054 5.9
3 Zurich Â鶹Éç Group 2,495,405 4.9
4 Chubb Ltd. 2,294,598 4.5
5 Liberty Mutual 2,140,149 4.2
6 Berkshire Hathaway Inc. 1,998,778 3.9
7 AmTrust Financial 1,956,224 3.8
8 Accident Fund Group 1,668,319 3.3
9 New York State Â鶹Éç Fund Workers’ Compensation Fund 1,610,727 3.2
10 Old Republic International Corp. 1,301,262 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, Â鶹Éç Information Institute.

Top 10 Writers Of Workers’ Compensation Â鶹Éç By Direct Premiums Written, 2019

($000)
Rank Group/company Direct premiums written (1) Market share (2)
1 Travelers Companies Inc. $4,211,529 7.8%
2 Hartford Financial Services 3,365,298 6.2
3 Zurich Â鶹Éç Group 2,640,320 4.9
4 Liberty Mutual 2,447,306 4.5
5 Chubb Ltd. 2,430,118 4.5
6 Berkshire Hathaway Inc. 2,311,261 4.3
7 AmTrust Financial 2,172,219 4.0
8 Accident Fund Group 1,744,640 3.2
9 American International Group (AIG) 1,453,477 2.7
10 Old Republic International Corp. 1,408,124 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, Â鶹Éç Information Institute.

Top 10 Writers Of Workers’ Compensation Â鶹Éç By Direct Premiums Written, 2018

($000)
Rank Group/company Direct premiums written (1) Market share (2)
1 Travelers  $4,280,547 7.5%
2 The Hartford 3,382,642 5.9
3 Zurich  2,687,437 4.7
4 AmTrust Financial 2,635,106 4.6
5 Liberty Mutual  2,473,711 4.3
6 Chubb  2,418,702 4.2
7 Berkshire Hathaway Inc.  2,310,903 4.0
8 State Ins Fund Workers’ Comp (NY) 2,256,138 3.9
9 AF Group  1,566,915 2.7
10 Old Republic Â鶹Éç  1,465,319 2.6

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

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

Top 10 Writers Of Workers’ Compensation Â鶹Éç By Direct Premiums Written, 2017

($000)
Rank Group/company Direct premiums written (1) Market share (2)
1 Travelers Companies Inc. $4,355,810 7.6%
2 Hartford Financial Services 3,406,913 5.9
3 AmTrust Financial Services  2,920,153 5.1
4 Zurich Â鶹Éç Group (3) 2,916,630 5.1
5 Berkshire Hathaway Inc. 2,776,306 4.8
6 Liberty Mutual 2,446,876 4.2
7 Chubb (4) 2,395,588 4.2
8 State Â鶹Éç Fund Workers’ Comp (NY) 2,277,778 4.0
9 American International Group 1,581,819 2.7
10 Old Republic International Corp. 1,456,600 2.5

(1) Before reinsurance transactions, includes some state funds.
(2) Based on U.S. total, includes territories.
(3) Data for Farmers Â鶹Éç Group of Companies and Zurich Financial Group (which owns Farmers’ management company) are reported separately by S&P Global Market Intelligence.
(4) Chubb Ltd. data reflect the 2015 merger with Ace Ltd.

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

Top 10 Writers Of Workers’ Compensation Â鶹Éç By Direct Premiums Written, 2016

($000)
Rank Group/company Direct premiums written (1) Market share (2)
1 Travelers Companies Inc. $4,427,997 7.6%
2 Hartford Financial Services 3,328,753 5.7
3 AmTrust Financial Services  3,110,623 5.4
4 Zurich Â鶹Éç Group (3) 2,835,537 4.9
5 Berkshire Hathaway Inc.  2,669,994 4.6
6 Chubb Ltd.  (4) 2,490,183 4.3
7 State Ins Fund Workers’ Comp (NY) 2,437,552 4.2
8 Liberty MHC Inc. 2,404,050 4.2
9 American International Group  1,864,297 3.2
10 State Compensation Ins Fund (CA) 1,612,050 2.8

(1) Before reinsurance transactions, includes some state funds.
(2) Based on U.S. total, includes territories.
(3) Data for Farmers Â鶹Éç Group of Companies and Zurich Financial Group (which owns Farmers’ management company) are reported separately by S&P Global Market Intelligence.
(4) Chubb Ltd. data reflect the 2015 merger with Ace Ltd.

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

Top 10 Writers Of Workers’ Compensation Â鶹Éç By Direct Premiums Written, 2015

($000)
Rank Group/company Direct premiums written (1) Market share (2)
1 Travelers Companies Inc. $4,467,425 7.8%
2 Hartford Financial Services 3,324,361 5.8
3 AmTrust Financial Services  2,972,901 5.2
4 Zurich Â鶹Éç Group (3) 2,851,695 5.0
5 Liberty Mutual  2,481,479 4.3
6 Berkshire Hathaway Inc.  2,479,354 4.3
7 State Â鶹Éç Fund Workers' Comp (NY) 2,437,325 4.3
8 Chubb Ltd. (4) 2,368,918 4.1
9 American International Group  2,345,247 4.1
10 State Compensation Â鶹Éç Fund (CA) 1,638,849 2.9

(1) Before reinsurance transactions, includes some state funds.
(2) Based on U.S. total, includes territories.
(3) Data for Farmers Â鶹Éç Group of Companies and Zurich Financial Group (which owns Farmers' management company) are reported separately by S&P Global Market Intelligence.
(4) Chubb Ltd. data reflect the 2015 merger with Ace Ltd.

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

TOP 10 WRITERS OF WORKERS’ COMPENSATION INSURANCE BY DIRECT PREMIUMS WRITTEN, 2014

($000)
Rank Group/company Direct premiums written (1) Market share (2)
1 Travelers Companies Inc. $4,320,787 7.9%
2 Hartford Financial Services 3,210,187 5.8
3 Liberty Mutual  2,660,002 4.8
4 Zurich Â鶹Éç Group (3) 2,575,336 4.7
5 American International Group 2,550,947 4.6
6 State Â鶹Éç Fund Workers' Comp (NY) 2,374,259 4.3
7 AmTrust Financial Services 2,357,858 4.3
8 Berkshire Hathaway Inc. 2,139,534 3.9
9 State Compensation Â鶹Éç Fund (CA) 1,528,879 2.8
10 Old Republic International Corp. 1,411,678 2.6

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

Source: SNL Financial LC.

TOP 10 WRITERS OF WORKERS’ COMPENSATION INSURANCE BY DIRECT PREMIUMS WRITTEN, 2013

($000)
Rank Group/company Direct premiums written (1) Market share (2)
1 Travelers Companies Inc. $4,138,107 7.9%
2 Hartford Financial Services 3,346,388 6.4
3 Liberty Mutual 3,048,707 5.8
4 American International Group 2,847,862 5.4
5 Zurich Â鶹Éç Group (3) 2,534,387 4.8
6 State Â鶹Éç Fund Workers' Comp. (NY) 2,283,287 4.4
7 Berkshire Hathaway Inc. 1,758,052 3.4
8 AmTrust Financial Services 1,665,462 3.2
9 Old Republic International Corp. 1,198,666 2.3
10 W. R. Berkley Corp. 1,161,299 2.2

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

Source: SNL Financial LC.

TOP TEN WRITERS OF WORKERS COMPENSATION INSURANCE BY DIRECT PREMIUMS WRITTEN, 2012

($000)
Rank Group/company Direct premiums written (1) Market share (2)
1 Liberty Mutual $4,179,078 8.7%
2 Travelers Companies Inc. 3,801,993 7.9
3 Hartford Financial Services 3,286,686 6.8
4 American International Group 2,952,157 6.1
5 Zurich Â鶹Éç Group Ltd. (3) 2,409,805 5.0
6 State Â鶹Éç Fund Workers’ Comp. 1,943,838 4.0
7 Berkshire Hathaway Inc. 1,256,635 2.6
8 Old Republic International Corp. 1,110,916 2.3
9 Chubb Corp. 1,049,479 2.2
10 AmTrust Financial Services 995,575 2.1

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

Source: SNL Financial LC.

TOP TEN WRITERS OF WORKERS’ COMPENSATION INSURANCE BY DIRECT PREMIUMS WRITTEN, 2010

($000)
Rank Group Direct premiums written (1) Market share
1 Liberty Mutual Holding Co. $4,073,004 10.3%
2 American International Group 3,592,682 9.1
3 Travelers Companies 2,817,806 7.1
4 Hartford Financial Services 2,643,721 6.7
5 Zurich Financial Services Ltd. 2,424,356 6.1
6 State Â鶹Éç Fund Workers’ Comp 1,309,759 3.3
7 State Compensation Â鶹Éç Fund 1,140,203 2.9
8 ACE Ltd. 1,065,645 2.7
9 Old Republic International 851,728 2.2
10 CNA Financial Corp. 845,171 2.1

(1) Before reinsurance transactions. Includes some state funds.

Source: SNL Financial LC.

Top 10 Writers Of Workers’ Compensation Â鶹Éç By Direct Premiums Written, 2024

($000)
Rank Group/company Direct premiums written (1) Market share (2)
1 Travelers Companies Inc. $3,833,318 6.7%
2 Hartford Financial Services 3,705,704 6.5
3 AmTrust Financial 3,369,192 5.9
4 Zurich Â鶹Éç Group 2,872,458 5.0
5 Chubb Ltd. 2,326,401 4.1
6 Berkshire Hathaway Inc. 2,000,970 3.5
7 Liberty Mutual 1,854,293 3.2
8 NY State Â鶹Éç Fund 1,686,141 3.0
9 Accident Fund Group 1,506,472 2.6
10 Old Republic International Corp. 1,493,592 2.6

(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, Â鶹Éç Information Institute.