Mathew B. Sims is Editor-in-Chief and has authored, edited, and contributed to several books. He has been working in the insurance industry ensuring content is accurate for consumers who are searching for the best policies and rates. He has also been featured on sites like UpJourney.

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Dan Walker graduated with a BS in Administrative Management in 2005 and has been working in his family’s insurance agency, FCI Agency, for 15 years (BBB A+). He is licensed as an agent to write property and casualty insurance, including home, auto, umbrella, and dwelling fire insurance. He’s also been featured on sites like Reviews.com and Safeco. He reviews content, ensuring that exis...

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Reviewed by Daniel Walker
Licensed Auto Insurance Agent

UPDATED: Aug 29, 2020

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Company Details
Address: 601 Carlson Parkway
City: Minnetonka
State: Minnesota
ZIP Code: 55305
Phone Number: 781-332-7000
Website: http://www.onebeacon.com
Year Founded: 2001
AM Best Rating: A
Company Rating 0 (0 reviews)

Things to Remember...

  • National Assurance Insurance offers various insurance products and writes insurance policies under the umbrella of OneBeacon Insurance Group
  • Founded in 2001, OneBeacon Insurance offers various types of insurance products, including 12 separate business products
  • National Assurance’s U.S.-based corporate headquarters is located at 601 Carlson Parkway, Suite 600, in Minnetonka, Minnesota

National Assurance is an affiliate of OneBeacon [OneBeacon Auto Insurance review].

National Assurance Insurance offers various insurance products and writes insurance policies under the umbrella of OneBeacon Insurance Group.

However, none of the services offered includes individual automobile insurance. Individuals searching for personal auto insurance must contact another insurance company in order to obtain quotes or additional information.

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National Assurance Agents

Founded in 2001, OneBeacon Insurance offers various types of insurance products, including 12 separate businesses that provide coverage.

These products include:

  • marine
  • entertainment
  • accident
  • tuition protection
  • collectible vehicles
  • technology
  • government and energy coverage

National Assurance provides quotes over the phone or in person with one of its agents. In addition, National Assurance serves customers with multiple regional offices.

National Assurance has agents located throughout the United States.

In order to locate an agent, interested customers must first visit the specific product website, as the main OneBeacon website does not have a list of agents or a search function.

Each of the 12 business service lines of OneBeacon has a dedicated website where the individual contacts are listed. The contacts include the service line president, claims specialists, and agents, among others.

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Enter your ZIP code below to view companies that have cheap auto insurance rates.

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National Assurance Locations

National Assurance’s U.S.-based corporate headquarters is located at 601 Carlson Parkway, Suite 600, in Minnetonka, Minnesota. The company headquarters is located at on the fifth floor of 14 Wesley Street in Hamilton, Bermuda.

The individual business offices are located throughout the United States, including:

  • New York
  • Massachusetts
  • California
  • Michigan
  • Colorado
  • New Jersey
  • Kansas

However, none of these locations provides individual auto insurance coverage or service, so customers must contact another carrier for assistance.

National Assurance Quotes

National Assurance does not offer online auto insurance quotes. Commercial customers looking for quotes on different types of insurance can contact one of the independent insurance agents depending on the service line from which they need a quote.

Some of the specific businesses that are part of OneBeacon do offer online quotes, but there is no way to get an online auto insurance quote since OneBeacon and National Assurance do not provide car insurance coverage.

National Assurance Claims

Similarly, to try to obtain an online quote, customers must visit the specific business service website in order to file an online claim.

While some of the insurance products offered by National Assurance through OneBeacon allow online claims, most of the products require calling the main toll-free phone number or getting in touch with the independent insurance agent.

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National Assurance Reviews

National Assurance Insurance Group is not accredited by the Better Business Bureau (BBB), and neither is its parent company, OneBeacon Insurance Group.

Businesses are under no obligation to seek or obtain accreditation from the BBB; however, businesses that are not accredited can still be assigned a rating.

The best possible rating in these cases is an “A+,” and the worst is an “F.”

The ratings are based on a variety of factors, including but not limited to the length of time in business, the type of business, whether or not the company honored commitments to the Better Business Bureau, and background information about the business.

The BBB has assigned National Assurance, through OneBeacon, a grade of “C+.” Over the past three years, there have been four complaints filed against OneBeacon Insurance Group, and all four have been closed.

The Better Business Bureau also has individual customer reviews on its website. However, these reviews were specifically for OneBeacon Insurance Group insurance and not for National Assurance.

National Assurance, through OneBeacon Insurance Group, is rated “A” (Excellent) by the A.M. Best Company, and the company has a stable outlook. In addition, National Assurance has been given a long-term issuer credit rating of “A.”

National Assurance Careers

There is a direct link on the home page of OneBeacon Insurance Group that lists open positions by keyword, title, or location.

In addition, there is an online application where interested applicants can create and save a profile to use to apply for positions.

A detailed list of benefits and direct links to the recruiters for the company is also available on the career page.

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