OLDWICK, N.J.–(BUSINESS WIRE)–A.M. Best has upgraded the Financial Strength Rating to A (Excellent) from A- (Excellent) and the Long-Term Issuer Credit Ratings to “a” from “a-” of Builders Insurance (A Mutual Captive Company) and its wholly owned subsidiaries, American Builders Insurance Company and National Builders Insurance Company, collectively referred to as Builders. The outlook of these Credit Ratings (ratings) has been revised to stable from positive. All companies are headquartered i