LEADING WRITERS OF WORKERS COMPENSATION INSURANCE BY DIRECT PREMIUMS WRITTEN, 2008
| 1 |
Liberty Mutual °µÍø½ûÇø Group |
$5,392,811 |
12.9% |
| 2 |
American International Group |
4,444,908 |
10.7 |
| 3 |
Travelers Group |
2,820,154 |
6.8 |
| 4 |
Zurich °µÍø½ûÇø Group |
2,678,892 |
6.4 |
| 5 |
Hartford Fire & Casualty Group |
2,570,689 |
6.2 |
| 6 |
CNA °µÍø½ûÇø Group |
1,036,856 |
2.5 |
| 7 |
ACE Ltd Group |
971,988 |
2.3 |
| 8 |
Blue Cross & Blue Shield of MI Group |
861,255 |
2.1 |
| 9 |
Chubb & Son Group |
788,704 |
1.9 |
| 10 |
Texas Mutual °µÍø½ûÇø Company |
756,894 |
1.8 |
|
(1) Does not include state funds.
(2) Before reinsurance transactions, excluding state funds.
(3) Based on U.S. total including territories.
Source: National Association of °µÍø½ûÇø Commissioners (NAIC) Annual Statement Database, via Highline Data, LLC. Copyrighted information. No portion of this work may be copied or distributed without the express written permission of Highline Data, LLC.Ìý
TOP TEN WRITERS OF WORKERS COMPENSATION INSURANCE BY DIRECT PREMIUMS WRITTEN, 2009
| 1 |
Liberty Mutual Holding Co. |
$4,468,727 |
11.0% |
| 2 |
American International GroupÌý |
3,851,297 |
9.5 |
| 3 |
Travelers Companies |
2,739,326 |
6.8 |
| 4 |
Hartford Financial ServicesÌý |
2,498,225 |
6.2 |
| 5 |
Zurich Financial Services LtdÌý |
2,473,549 |
6.1 |
| 6 |
New York State °µÍø½ûÇø FundÌý |
1,309,601 |
3.2 |
| 7 |
State Compensation °µÍø½ûÇø Fund (California) |
1,287,041 |
3.2 |
| 8 |
ACE Ltd.Ìý |
1,068,738 |
2.6 |
| 9 |
CNA Financial Corp.Ìý |
951,095 |
2.4 |
| 10 |
Accident Fund GroupÌý |
794,454 |
2.0 |
|
(1) Before reinsurance transactions. Includes some state funds.
Source: SNL Financial LC.Ìý
TOP TEN WRITERS OF WORKERS' COMPENSATION INSURANCE BY DIRECT PREMIUMS WRITTEN, 2010
| 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 °µÍø½ûÇø Fund Workers' Comp |
1,309,759 |
3.3 |
| 7 |
State Compensation °µÍø½ûÇø Fund |
1,140,203 |
2.9 |
| 8 |
ACE Ltd.Ìý |
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.Ìý
TOP TEN WRITERS OF WORKERS COMPENSATION INSURANCE BY DIRECT PREMIUMS WRITTEN, 2011
| 1 |
Liberty Mutual |
$4,084,112 |
9.3% |
| 2 |
American International Group |
3,474,247 |
7.9 |
| 3 |
Travelers Companies Inc. |
3,232,266 |
7.4 |
| 4 |
Hartford Financial Services |
3,156,463 |
7.2 |
| 5 |
Zurich °µÍø½ûÇø Group Ltd. |
2,255,031 |
5.1 |
| 6 |
State °µÍø½ûÇø Fund Workers' Comp (NY) |
1,495,865 |
3.4 |
| 7 |
State Compensation °µÍø½ûÇø Fund (CA) |
1,011,147 |
2.3 |
| 8 |
ACE Ltd. |
975,067 |
2.2 |
| 9 |
CNA Financial Corp. |
956,861 |
2.2 |
| 10 |
Old Republic International Corp. |
942,712 |
2.1 |
|
(1) Before reinsurance transactions, includes some state funds.
(2) Based on U.S. total including territories.
Source: SNL Financial LC.
TOP TEN WRITERS OF WORKERS COMPENSATION INSURANCE BY DIRECT PREMIUMS WRITTEN, 2012
| 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 °µÍø½ûÇø Group Ltd. (3) |
2,409,805 |
5.0 |
| 6 |
State °µÍø½ûÇø 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 °µÍø½ûÇø 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
| 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 °µÍø½ûÇø Group (3) |
2,534,387 |
4.8 |
| 6 |
State °µÍø½ûÇø 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 °µÍø½ûÇø 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, 2014
| 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 MutualÌý |
2,660,002 |
4.8 |
| 4 |
Zurich °µÍø½ûÇø Group (3) |
2,575,336 |
4.7 |
| 5 |
American International Group |
2,550,947 |
4.6 |
| 6 |
State °µÍø½ûÇø 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 °µÍø½ûÇø 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 °µÍø½ûÇø 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 °µÍø½ûÇø By Direct Premiums Written, 2015
| 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 ServicesÌý |
2,972,901 |
5.2 |
| 4 |
Zurich °µÍø½ûÇø Group (3) |
2,851,695 |
5.0 |
| 5 |
Liberty MutualÌý |
2,481,479 |
4.3 |
| 6 |
Berkshire Hathaway Inc.Ìý |
2,479,354 |
4.3 |
| 7 |
State °µÍø½ûÇø Fund Workers' Comp (NY) |
2,437,325 |
4.3 |
| 8 |
Chubb Ltd. (4) |
2,368,918 |
4.1 |
| 9 |
American International GroupÌý |
2,345,247 |
4.1 |
| 10 |
State Compensation °µÍø½ûÇø 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 °µÍø½ûÇø 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, °µÍø½ûÇø Information Institute.
Top 10 Writers Of Workers' Compensation °µÍø½ûÇø By Direct Premiums Written, 2016
| 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 ServicesÌý |
3,110,623 |
5.4 |
| 4 |
Zurich °µÍø½ûÇø Group (3) |
2,835,537 |
4.9 |
| 5 |
Berkshire Hathaway Inc.Ìý |
2,669,994 |
4.6 |
| 6 |
Chubb Ltd.Ìý (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 GroupÌý |
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 °µÍø½ûÇø 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, °µÍø½ûÇø Information Institute.
Top 10 Writers Of Workers' Compensation °µÍø½ûÇø By Direct Premiums Written, 2017
| 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 ServicesÌý |
2,920,153 |
5.1 |
| 4 |
Zurich °µÍø½ûÇø 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 °µÍø½ûÇø 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 °µÍø½ûÇø 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, °µÍø½ûÇø Information Institute.
Top 10 Writers Of Workers' Compensation °µÍø½ûÇø By Direct Premiums Written, 2018
| Rank |
Group/company |
Direct premiums written (1) |
Market share (2) |
| 1 |
TravelersÌý |
$4,280,547 |
7.5% |
| 2 |
The Hartford |
3,382,642 |
5.9 |
| 3 |
ZurichÌý |
2,687,437 |
4.7 |
| 4 |
AmTrust Financial |
2,635,106 |
4.6 |
| 5 |
Liberty MutualÌý |
2,473,711 |
4.3 |
| 6 |
ChubbÌý |
2,418,702 |
4.2 |
| 7 |
Berkshire Hathaway Inc.Ìý |
2,310,903 |
4.0 |
| 8 |
State Ins Fund Workers' Comp (NY) |
2,256,138 |
3.9 |
| 9 |
AF GroupÌý |
1,566,915 |
2.7 |
| 10 |
Old Republic °µÍø½ûÇøÌý |
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, °µÍø½ûÇø Information Institute.
Top 10 Writers Of Workers' Compensation °µÍø½ûÇø By Direct Premiums Written, 2019
| 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 °µÍø½ûÇø 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, °µÍø½ûÇø Information Institute.
Top 10 Writers Of Workers' Compensation °µÍø½ûÇø By Direct Premiums Written, 2020
| 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 °µÍø½ûÇø 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 °µÍø½ûÇø 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, °µÍø½ûÇø Information Institute.
Top 10 Writers Of Workers' Compensation °µÍø½ûÇø By Direct Premiums Written, 2021
| 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 °µÍø½ûÇø 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 °µÍø½ûÇø 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, °µÍø½ûÇø Information Institute.
Top 10 Writers Of Workers' Compensation °µÍø½ûÇø By Direct Premiums Written, 2022
| Rank |
Group/company |
Direct premiums written (1) |
Market share (2) |
| 1 |
Travelers Companies Inc. |
$3,807,268Ìý |
6.7% |
| 2 |
Hartford Financial Services |
3,636,367 |
6.4 |
| 3 |
AmTrust Financial |
3,161,524 |
5.6 |
| 4 |
Zurich °µÍø½ûÇø Group |
2,741,423 |
4.8 |
| 5 |
Chubb Ltd. |
2,426,232 |
4.3 |
| 6 |
Liberty Mutual |
2,313,160 |
4.1 |
| 7 |
Berkshire Hathaway Inc. |
2,050,907 |
3.6 |
| 8 |
Accident Fund Group |
1,749,368 |
3.1 |
| 9 |
New York State °µÍø½ûÇø Fund Workers' Compensation Fund |
1,565,411 |
2.8 |
| 10 |
Old Republic International Corp. |
1,430,352 |
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, °µÍø½ûÇø Information Institute.
Top 10 Writers Of Workers' Compensation °µÍø½ûÇø By Direct Premiums Written, 2023
| 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 °µÍø½ûÇø 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 °µÍø½ûÇø Group |
1,413,442 |
2.5 |
|
(1) Before reinsurance transactions, includes state funds.
(2) Based on U.S. total, excluding territories. State °µÍø½ûÇø 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, °µÍø½ûÇø Information Institute.