OLDWICK, N.J.--(BUSINESS WIRE)--A.M. Best has affirmed the financial strength rating (FSR) of A (Excellent) and the issuer credit ratings (ICR) of “a+” of Selective Insurance Company of America and its nine pooled affiliates, collectively referred to as Selective. In addition, A.M. Best has affirmed the ICR of “bbb+” and the debt ratings of Selective’s parent, Selective Insurance Group, Inc. (SIGI) (NASDAQ:SIGI). The outlook for all ratings is stable. All companies are headquartered in Branchvi