AM Best confirms the credit ratings of United States Liability Insurance Company and its subsidiaries

OLDWICK, NJ–(BUSINESS WIRE)–AM Best affirmed the financial strength rating of A++ (Superior) and the long-term credit ratings of “aa+” (Superior) of United States Liability Insurance Company (USLI) and its subsidiaries: Mount Vernon Fire Insurance Company (MVF), US Underwriters Insurance Company (USU) (Bismarck, ND), Mount Vernon Specialty Insurance Company and Radnor Specialty Insurance Company. The outlook for these Credit Ratings (ratings) is stable. All companies are domiciled in Omaha, NE, unless otherwise noted.

The ratings reflect the strength of the insurance companies‘ consolidated balance sheets, which AM Best assesses as the strongest, as well as their very strong operational performance, their neutral business profile and their appropriate management of business risks.

These valuations are evidenced by USLI’s extended underwriting and overall operating profitability trends, its superior risk-adjusted capital position, its presence in the relevant market and its conservative reserve positions. Other positive rating factors include a high level of diversification in the companies’ books of business in terms of concentration limits, sales channels, proactive claims management philosophy and commitment to customer service. the clientele. In addition, these ratings continue to benefit from the implicit support provided to USLI and its subsidiaries by their ultimate parent company, Berkshire Hathaway Inc. (Berkshire) [NYSE: BRK-A and BRK-B]and the explicit support of their subsidiary, National Indemnity Company.

This support for some of the operating companies takes the form of major reinsurance treaties with National Indemnity Company, a subsidiary of Berkshire. In addition to this agreement, Berkshire has established a long-term record of support for its member companies.

In the second quarter of 2022, USLI experienced volatility in its investment portfolio due to recent stock market behavior. Any potential concern about the resulting decline in surplus is mitigated by the group’s higher risk-adjusted capitalization, as measured by Best’s capital adequacy ratio (BCAR), which provides a sufficient cushion to absorb occasional volatility in capital markets.

This press release relates to credit ratings that have been published on AM Best’s website. For all rating information relating to the release and relevant disclosures, including details of the office responsible for issuing each of the individual ratings referenced in this release, please see AM Best’s Recent Assessment Activity Web page. For more information on the use and limitations of credit rating opinions, please see Best Credit Score Guide. For more information on the proper use of Best’s Credit Ratings, Best’s Performance Ratings, Best’s Preliminary Credit Ratings, and AM Best’s press releases, please see Guide to Proper Use of Best’s Ratings and Reviews.

AM Best is a global credit rating agency, news publisher and data analytics provider specializing in the insurance industry. Headquartered in the United States, the company does business in more than 100 countries with regional offices in London, Amsterdam, Dubai, Hong Kong, Singapore and Mexico City. For more information, visit

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