TOP TEN U.S. PROPERTY/CASUALTY REINSURERS OF U.S. BUSINESS BY GROSS PREMIUMS WRITTEN, 2011

($000)

Rank Company Country of parent company Gross premiums written
1 National Indemnity Company (Berkshire Hathaway) (1) U.S. $5,616,938
2 Swiss Reinsurance America Corporation (2) Switzerland 4,391,608
3 QBE Reinsurance Group, New York (3) Australia 4,192,117
4 Munich Re America, Corp. (4) Germany 4,051,630
5 Transatlantic/Putnam Reinsurance  U.S. 3,651,805
6 Everest Reinsurance Company  Bermuda 3,455,453
7 XL Reinsurance America, Inc.  Ireland 2,926,211
8 Odyssey Reinsurance Group (5)  Canada 2,212,355
9 Berkley Insurance Company  U.S. 1,675,945
10 General Re Group (6) U.S. 1,171,457

(1) Exclude assumptions from affiliated General Re Group.
(2) Includes the results of Swiss Reinsurance America Corporation which is impacted by significant affiliated transactions with other members of the Swiss Re Group.
(3) Includes the combined results of QBE Reinsurance Corporation, QBE Insurance Corporation and QBE Specialty Insurance Company.
(4) Includes the combined results of Munich Reinsurance America, Inc., American Alternative Insurance Corporation and The Princeton Excess and Surplus Lines Company.
(5) Includes Odyssey Reinsurance, Clearwater Select, Hudson Insurance and Hudson Specialty Insurance Companies.
(6) North American Property/Casualty segment of General Re; excludes certain intercompany transactions and cessions to certain affiliates of Berkshire Hathaway.

Source: Reinsurance Association of America.