Top 25 U.S Surplus Lines Groups By Direct Premiums Written, 2017

($000)

Rank Group Direct premiums written Percent of total U.S. surplus lines market
1 Lloyd's $10,325,000 23.0%
2 American International Group (1) 3,239,996 7.2
3 Markel Corporation Group 2,167,568 4.8
4 Nationwide Group 1,737,150 3.9
5 W. R. Berkley Insurance Group 1,698,541 3.8
6 Berkshire Hathaway Ins. Group 1,503,234 3.3
7 Chubb INA Group 1,445,248 3.2
8 Fairfax Financial (USA) Group 1,305,476 2.9
9 Liberty Mutual Insurance Companies 1,288,834 2.9
10 XL Catlin America Group 1,142,292 2.5
11 Zurich Financial Services Group NA  1,135,953 2.5
12 Alleghany Insurance Holdings Group 790,305 1.8
13 Argo Group 723,869 1.6
14 Tokio Marine U.S. PC Group 688,481 1.5
15 AXIS U.S. Operations 681,015 1.5
16 Sompo Holdings U.S. Group 671,194 1.5
17 QBE Americas Group 642,289 1.4
18 Great American P & C Group 600,356 1.3
19 CNA Insurance Companies 568,441 1.3
20 Aspen U.S. Insurance Group 539,155 1.2
21 James River Group 530,077 1.2
22 Swiss Reinsurance Group 485,098 1.1
23 Arch Insurance Group 469,965 1.0
24 Starr International Group 425,901 0.9
25 Navigators Insurance Group 411,553 0.9
  Total, top 25 $35,216,991 78.5%
  Total U.S. surplus lines market $44,878,931 100.0%
(1) Does not include direct surplus lines premium moved to offshore affiliate AIG Europe, Ltd. Source: A.M. Best data and research.