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