Website: N/A
Stock Symbol: NYSE: ZNT
Market Value: N/A (in millions)

Zenith National Insurance Corp. ("Zenith National"), a Delaware corporation incorporated in 1971, is a holding company engaged, through its wholly-owned subsidiaries, Zenith Insurance Company ("Zenith Insurance") and ZNAT Insurance Company ("ZNAT Insurance") (collectively, "Zenith"), in the workers' compensation insurance business, nationally. Unless otherwise indicated, all references to "Zenith," "we," "us," "our," "Company" or similar terms refer to Zenith National together with its subsidiaries.

Zenith's insurance subsidiaries have been assigned a financial strength rating of A (Excellent) by A.M. Best Company ("A.M. Best"), A3 (Good) by Moody's Investors Service ("Moody's"), A- (Strong) by Standard & Poor's ("S&P"), and A (Strong) by Fitch Ratings ("Fitch").

At December 31, 2007, Zenith had approximately 1,600 full-time employees.