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.