OLDWICK, N.J.--(BUSINESS WIRE)--A.M. Best has affirmed the financial strength rating of A (Excellent) and the issuer credit ratings of “a” of the members of Nonprofits Insurance Alliance Group (NIAG): Alliance of Nonprofits for Insurance, Risk Retention Group (ANI) and National Alliance of Nonprofits for Insurance (NANI) (both domiciled in Montpelier, VT), as well as Nonprofits Insurance Alliance of California, Inc. (NIAC) (Santa Cruz, CA). The outlook for all ratings is stable. The ratings rec