ZENITH NATIONAL INSURANCE CORP - FORM 10-K - EX-21 - EXHIBIT 21 - February 10, 2010

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10-K - 10-K - ZENITH NATIONAL INSURANCE CORPa2196189z10-k.htm
EX-32 - EXHIBIT 32 - ZENITH NATIONAL INSURANCE CORPa2196189zex-32.htm
EX-23 - EXHIBIT 23 - ZENITH NATIONAL INSURANCE CORPa2196189zex-23.htm
EX-31.2 - EXHIBIT 31.2 - ZENITH NATIONAL INSURANCE CORPa2196189zex-31_2.htm
EX-31.1 - EXHIBIT 31.1 - ZENITH NATIONAL INSURANCE CORPa2196189zex-31_1.htm
EX-99.1 - EXHIBIT 99.1 - ZENITH NATIONAL INSURANCE CORPa2196189zex-99_1.htm

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EXHIBIT 21

SUBSIDIARIES OF THE REGISTRANT

Zenith National Insurance Corp. and Subsidiaries
(As of December 31, 2009)

Zenith National Insurance Corp. (a Delaware corporation)
                Zenith National Insurance Capital Trust I (a Delaware statutory trust)
                Zenith Development Corp. (a Nevada corporation)

                Zenith Insurance Company (a California corporation)

                                ZNAT Insurance Company (a California corporation)

                                Zenith Insurance Management Services, Inc. (a Florida corporation)
                                1390 Main Street LLC (a Delaware limited liability company)
                                Zenith of Nevada, Inc. (a Nevada corporation)

Each subsidiary shown is wholly-owned by the subsidiary shown in the tier above it.



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