TOP TEN U.S.-BASED SURPLUS LINES INSURANCE COMPANIES BY NONADMITTED DIRECT WRITTEN PREMIUMS, 2008
Rank Company (Parent) Nonadmitted direct premiums
1 Lexington Insurance Co. (Chartis Inc. (1)) $6,016,530,122 (2) 
2 American International Specialty Lines
Insurance Co. (Chartis Inc. (1))
1,199,167,031
3 Steadfast Insurance Co. (Zurich Financial
Services Group) 
1,195,530,902 (2)
4 Scottsdale Insurance Co. (Nationwide Mutual
Insurance Co.)
1,074,443,119 (2)
5 Columbia Casualty Co. (CNA Financial Corp.) 737,532,213
6 Evanston Insurance Co. (Markel Corp.) 615,721,938
7 Landmark American Insurance Co. (Alleghany
Corp.)
588,216,809
8 Illinois Union Insurance Co. (ACE Ltd.) 543,727,444
9 Westchester Surplus Lines Insurance Co.
(ACE Ltd.)
517,809,818
10 Arch Specialty Insurance Co. (Arch Capital
Group Ltd.)
470,303,764

(1) Formerly AIG.
(2) Provided on a pooling basis.

Source: Business Insurance, October 5, 2009.