OLDWICK, N.J.–(BUSINESS WIRE)– #insurance–AM Best has upgraded the Financial Strength Rating to A- (Excellent) from B++ (Good) and the Long-Term Issuer Credit Rating to “a-” (Excellent) from “bbb+” (Good) of Bupa Insurance Company (BIC) (Palmetto Bay, FL). The outlook of these Credit Ratings (ratings) is stable.The ratings reflect BIC’s balance sheet strength, which AM Best assesses as very strong, as well as its adequate operating performance, limited business profile, appropriate enterprise risk managem