RENO, Nev.–(BUSINESS WIRE)–Employers Holdings, Inc. (NYSE:EIG) (EMPLOYERS®) today announced insurance rating bureau A.M. Best has affirmed the financial strength rating of A- (Excellent) and issuer credit ratings (ICR) of “a-” of Employers Insurance Group and its four pooled property/casualty operating subsidiaries, Employers Insurance Company of Nevada (EICN) (Nevada), Employers Compensation Insurance Company (ECIC) (California), Employers Preferred Insurance Company (EPIC) and Employers Ass