Top 10 Writers Of Workers' Compensation Insurance 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 Insurance 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, Insurance Information Institute.