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Private company

A. M. Best

Logo: Unknown author Unknown author, Public domain, via Wikimedia Commons4

American credit rating service

A.M. Best Company, Inc. is an American credit rating agency headquartered in Oldwick, New Jersey, that focuses on the insurance industry. Both the U.S. Securities and Exchange Commission and the National Association of Insurance Commissioners have designated the company as a Nationally Recognized Statistical Rating Organization (NRSRO) in the United States.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

1899Founded1
  • Industryfinancial services1
  • HeadquartersOldwick1
  • Websitewww.ambest.com
  • Legal formBusiness Corporation3
  • LEI549300LXZMQIXC5XCJ023
  • StatusActive3
  • LEI statusIssued and current3
  • Registered addressC/O CORPORATION SERVICE COMPANY, 08628 Ewing, United States3
  • Registered withBusiness Records Service (Division of Revenue & Enterprise Services), 13252640003

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A.M. Best Company, Inc. is an American credit rating agency headquartered in Oldwick, New Jersey, that focuses on the insurance industry. Both the U.S. Securities and Exchange Commission and the National Association of Insurance Commissioners have designated the company as a Nationally Recognized Statistical Rating Organization (NRSRO) in the United States.2

Corporate structure

A. M. Best sits at the top of its group. 7 entities, 6 countries on record. Switch between the flow chart and the network, and select any entity to see its details.

  • A. M. Best Oldwick, New Jersey, United States
    • A.M. BEST RATING SERVICES, INC. Subsidiary · Oldwick, New Jersey, United States
      • A.M. BEST (EU) RATING SERVICES B.V. Subsidiary · Amsterdam, Netherlands
      • A.M. BEST AMERICA LATINA, SOCIEDAD ANONIMA DE CAPITAL VARIABLE, INSTITUCION CALIFICADORA DE VALORES Subsidiary · Mexico City, Mexico
      • A.M. BEST ASIA-PACIFIC (SINGAPORE) PTE. LTD. Subsidiary · Singapore, Singapore
      • A.M. BEST ASIA-PACIFIC LIMITED Subsidiary · Hong Kong, Hong Kong
      • A.M. BEST EUROPE - RATING SERVICES LIMITED Subsidiary · London, United Kingdom

Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0). Each entity in the chart links to its source.

The story

Founded in 1899 by Alfred M. Best in New York City, the privately held company moved to Morristown, New Jersey, in 1965, and subsequently to Oldwick in 1974. It also maintains offices in London, Hong Kong, Dubai, Mexico City, Singapore and a news bureau in Washington, D.C.

While the company is a primary source for national insurance industry statistics in the United States, it is becoming increasingly well known in Europe, the Pacific Rim and Latin America. The company's London offices consist of A.M. Best Europe—Rating Services and A.M. Best Europe—Information Services. A.M. Best Asia-Pacific is located in Hong Kong and Singapore. A.M. Best America Latina is located in Mexico City. AM Best recently opened a branch of A.M. Best Europe in Amsterdam that provides Ratings Services.

From Wikipedia’s article on AM Best, shared under CC BY-SA 4.0.5

Leadership

Who has led A. M. Best, and when. Pick a name to see everywhere that person has worked.

Products and brands

AM Best issues financial-strength ratings measuring insurance companies' ability to pay claims. It also rates financial instruments issued by insurance companies, such as bonds, notes, and securitization products.

AM Best publishes a series of printed and online resources of insurance professionals and publications. The oldest and best known is Best's Recommended Insurance Attorneys & Adjusters. Insurance publications include BestWeek, a weekly newsletter, Best's Review, a monthly digital & print magazine, and an online wire service called BestWire.

From Wikipedia’s article on AM Best, shared under CC BY-SA 4.0.5

Timeline

  1. 1899Founded Founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

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