All Brands Owned by Arthur J. Gallagher & Co.
Arthur J. Gallagher & Co. owns 4 brands in our database. Browse the complete portfolio of Arthur J. Gallagher & Co. subsidiaries and brands across various industries.
Company Type
public
Headquarters
Rolling Meadows, Illinois, USA
Brand Portfolio
4 brands
Stock
NYSE: AJG
Filter by Category
Complete Brand Portfolio
InsuranceAssuredPartners
Owned by Arthur J. Gallagher & Co.
The US retail insurance brokerage Arthur J. Gallagher acquired for roughly $13.8 billion in August 2025, now being integrated into the Gallagher brand.
insurance-brokerretail-brokerageemployee-benefits
InsuranceGallagher Bassett
Owned by Arthur J. Gallagher & Co.
Arthur J. Gallagher's third-party claims administration and risk management brand, one of the largest TPAs in the world, serving corporations, insurers, and public entities.
claims-administrationtparisk-management
InsuranceGallagher Re
Owned by Arthur J. Gallagher & Co.
Arthur J. Gallagher's reinsurance brokerage brand, created in 2021 around the Willis Re acquisition and operating across 77 offices in 27 countries.
reinsuranceinsurance-brokercatastrophe-modeling
InsuranceGallagher
Owned by Arthur J. Gallagher & Co.
The master brand of Arthur J. Gallagher & Co., the world's third-largest insurance broker covering commercial, benefits, specialty, and personal lines.
insurance-brokerrisk-managementemployee-benefits
About Arthur J. Gallagher & Co.
What is Arthur J. Gallagher & Co.?
Arthur J. Gallagher & Co. is a global insurance brokerage and risk management company headquartered in Rolling Meadows, Illinois. Founded in 1927, it is the world's third-largest insurance broker, reporting FY2025 revenue of $13.8 billion.
Is Arthur J. Gallagher publicly traded?
Yes. It trades on the New York Stock Exchange under the ticker AJG.
Who runs Arthur J. Gallagher?
J. Patrick Gallagher Jr., grandson of the founder, serves as chairman, president, and chief executive officer.
What did Gallagher pay for AssuredPartners?
Gallagher closed the acquisition of AssuredPartners on August 18, 2025 for approximately $13.8 billion, its largest deal ever, adding about 10,900 employees.
What are Gallagher's business segments?
Brokerage, covering retail and wholesale broking plus Gallagher Re reinsurance, and Risk Management, built around the Gallagher Bassett claims administration business.
Stock Information
Competitors to Arthur J. Gallagher & Co.
No competing brands found in the same categories. This could be because Arthur J. Gallagher & Co.operates in unique market segments or we're still building our competitor database.
Arthur J. Gallagher & Co. Brand Portfolio Overview
Arthur J. Gallagher & Co. maintains a diverse portfolio of 4 brands across multiple industries. This comprehensive brand portfolio demonstrates the company's market presence and strategic business units.
Brand Portfolio by Industry:
- Insurance: 4 brands
For consumers and researchers interested in corporate ownership structures, understanding which brands are owned by Arthur J. Gallagher & Co.provides valuable insights into market dynamics, product relationships, and corporate strategy.
Explore More
Jobs at Arthur J. Gallagher & Co.
Latest News About Arthur J. Gallagher & Co.
Articles About Arthur J. Gallagher & Co.
View more articles
News & Updates
Monthly IPO Roundup: November 2026 -- October's Biggest Listings
October 2026 IPOs: Jio Platforms set India's all-time record at $3.2B and surged 27%, GCash owner Mynt raised a Philippine-record P60.9B, Anthropic filed publicly for a possible mid-November debut, and U.S. listings were a biotech grab bag. Full recap.
Who Brands StaffNov 6, 2026
Ipo RoundupIpoStock Market
News & Updates
Monthly M&A Roundup: October 2026 Brand Ownership Changes
October 2026's biggest deals: Paramount Skydance closed its $110B Warner Bros. Discovery takeover, Salesforce signed Braze for $5.66B, Proofpoint bought Varonis for $6.3B, the Weston family agreed to buy Boots for $8.9B, and Viatris added Pacira for $1.65B. Full breakdown.
Who Brands StaffNov 6, 2026
M And A RoundupAcquisitionsNews
Rivalry
Duracell vs Energizer: The Battery Brand Rivalry
Duracell is Berkshire Hathaway-owned (25-30% US share). Energizer is publicly traded (NYSE: ENR) with Rayovac. Together they control ~85% of branded US batteries, but Amazon Basics has 27.1% online. Explore our database.
Who Brands StaffOct 23, 2026
DuracellEnergizerRivalry