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TOP TEN 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 Insurance Group (3) 2,534,387 4.8
6 State Insurance 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 Insurance Group of Companies and Zurich Financial Group (which owns Farmers' management company) are reported separately by SNL Financial LC.

Source: SNL Financial LC.

 
LEADING WRITERS OF WORKERS COMPENSATION INSURANCE BY DIRECT PREMIUMS WRITTEN, 2008

($ millions)

Rank Group (1) Direct premiums written (2) Market share (3)
(percent)
1 Liberty Mutual Insurance 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 Insurance Group 2,678,892 6.4
5 Hartford Fire & Casualty Group 2,570,689 6.2
6 CNA Insurance 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 Insurance 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 Insurance 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. 

 
TOP TEN WRITERS OF WORKERS COMPENSATION INSURANCE BY DIRECT PREMIUMS WRITTEN, 2009

($000)

Rank Group Direct premiums written (1) Market share
1 Liberty Mutual Holding Co. $4,468,727 11.0%
2 American International Group  3,851,297 9.5
3 Travelers Companies 2,739,326 6.8
4 Hartford Financial Services  2,498,225 6.2
5 Zurich Financial Services Ltd  2,473,549 6.1
6 New York State Insurance Fund  1,309,601 3.2
7 State Compensation Insurance Fund (California) 1,287,041 3.2
8 ACE Ltd.  1,068,738 2.6
9 CNA Financial Corp.  951,095 2.4
10 Accident Fund Group  794,454 2.0

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

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 Insurance Fund Workers' Comp 1,309,759 3.3
7 State Compensation Insurance 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 TEN WRITERS OF WORKERS COMPENSATION INSURANCE BY DIRECT PREMIUMS WRITTEN, 2011

($000)

Rank Group/company Direct premiums written (1) Market share (2)
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 Insurance Group Ltd. 2,255,031 5.1
6 State Insurance Fund Workers' Comp (NY) 1,495,865 3.4
7 State Compensation Insurance 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

($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 Insurance Group Ltd. (3) 2,409,805 5.0
6 State Insurance 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 Insurance Group of Companies and Zurich Financial Group (which owns Farmers' management company) are reported separately by SNL Financial LC.

Source: SNL Financial LC.