Arthur J. Gallagher

Almost $20 trillion in revenue—and a record-breaking $1.87 trillion in profits. Introducing the 2025 Fortune 500, the definitive list of the biggest companies in America.

Fortune 500

The 300 companies on this year’s list brought in over $12.6 trillion in revenue for the latest 12 months, with the median revenue figure at $22 billion.

America's Most Innovative Companies

The Fortune 500, in its 70th year in 2024, ranks the biggest U.S. companies by revenue.

The Fortune 500, in its 69th year in 2023, ranks the biggest U.S. companies by revenue.

This year’s Fortune 500 marks the 68th running of the list.

This year’s Fortune 500 marks the 67th running of the list.

One of the largest insurance brokers in the world, the firm offers brokerage and risk management services to various clients.

This year's Fortune 500 marks the 66th running of the list.

F500 2020-429-Arthur J Gallagher

A Rolling Meadows, Ill.-based insurance brokerage, Arthur J. Gallagher has 33,300 employees.

This year's Fortune 500 marks the 65th running of the list.

This year's Fortune 500 marks the 64th running of the list.

This year's Fortune 500 marks the 63rd running of the list.

This year's Fortune 500 marks the 62nd running of the list.

This year's Fortune 500 marks the 61st running of the list. Wal-Mart claims the top spot again. See who made the list.

Wal-Mart stayed on top as its sales crept closer to half-a-trillion dollars. Apple moved into the top five. And UnitedHealth Group continued its steady climb. 

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Arthur J. Gallagher &amp; Co. is a global insurance brokerage, risk management, and consulting firm. The company provides customized property and casualty insurance, risk management, and consulting services to a wide range of clients worldwide. Founded in 1927, the company operates in 130 countries and territories.

Arthur J. Gallagher

Arthur J. Gallagher in Fortune Rankings

Arthur J. Gallagher stock chart