AM Best affirms OneBeacon ratings


AM Best has removed from under review with positive implications and upgraded the Long-Term Issuer Credit Ratings (Long-Term ICR) to “a+” from “a” and affirmed the Financial Strength Rating of A (Excellent) of Atlantic Specialty Insurance Company and its rated affiliates. Collectively, these companies are referred to as OneBeacon Insurance Group.

OneBeacon Insurance Group, AM Best, Rating, Atlantic Specialty Insurance Company, North America

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