Arthur J. Gallagher & Co. (AJG)

Arthur J. Gallagher & Co. is a Financial Services company in the S&P 500, with a market capitalization of about $58.5 billion as of October 1, 2026.

Ticker
AJG · NYSE
Sector
Financial Services
Industry (SIC)
Insurance Agents, Brokers & Service
Market cap
$58.5 billion
Employees
67,456
Headquarters
Rolling Meadows, IL
Fiscal year end
December 31

About Arthur J. Gallagher & Co.

Arthur J. Gallagher & Co., together with its subsidiaries, provides insurance and reinsurance brokerage, consulting, and third-party property/casualty claims settlement and administration services to entities and individuals worldwide. The company operates in Brokerage and Risk Management segments. Its Brokerage segment offers retail and wholesale insurance and reinsurance brokerage services; assists retail brokers and other non-affiliated brokers in the placement of specialized and hard-to-place insurance; and acts as a brokerage wholesaler, managing general agent, and managing general underwriter for distributing specialized insurance coverages to underwriting enterprises. This segment performs activities, including marketing, underwriting, issuing policies, collecting premiums, appointing and supervising other agents, paying claims, and negotiating reinsurance; and offers services in the areas of insurance and reinsurance placement, risk of loss management, and management of employer sponsored benefit programs. The Risk Management segment provides contract claim settlement and administration services; and claims management, loss control consulting, and insurance property appraisal services. The company offers its services through a network of correspondent brokers and consultants. It serves commercial, industrial, public, religious, and nonprofit entities, as well as underwriting enterprises. The company was founded in 1927 and is headquartered in Rolling Meadows, Illinois.

Financial statements

Nvevo shows Arthur J. Gallagher & Co.'s income statement, balance sheet, cash flow statement and key ratios as reported in its 10-K and 10-Q filings with the SEC, annually and quarterly, alongside price history, recent news and fair value models.

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