Who Owns Gallagher Bassett?
Gallagher Bassett is the third-party claims administration and risk management brand of Arthur J. Gallagher & Co. (NYSE: AJG). It forms the core of Gallagher's Risk Management segment, handling claims processing, loss control, and risk services for corporations, insurers, and public entities across roughly two dozen countries.
Parent Company
Founded
1962
Status
Publicly Traded
Headquarters
Gallagher Bassett Timeline
GlobalOfficial Website
Who Owns Gallagher Bassett?
- Parent Company: Arthur J. Gallagher & Co.
- Ownership Type: Brand division
- Company Type: Publicly Traded
- Stock Ticker: NYSE: AJG
| Brand | Parent Company | Ownership Type |
|---|---|---|
| Gallagher Bassett | Arthur J. Gallagher & Co. | Brand division |
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History of Gallagher Bassett
- Founded: 1962
- Founders: Arthur J. Gallagher & Co. (internal development)
The claims operation traces to the 1960s inside the Gallagher brokerage, developing into a standalone third-party administrator as large employers shifted to self-funded workers' compensation and liability programs.
Gallagher Bassett expanded internationally from the 1990s, building operations in the United Kingdom, Canada, Australia, and New Zealand. The 2021 Willis Re acquisition strengthened its specialty and program business, and it now ranks among the largest TPAs globally by claims under management.
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.
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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.
- Founded: 1927
- Headquarters: Rolling Meadows, Illinois, USA
- Company Type: Publicly Traded
- Stock: NYSE: AJG
- Revenue: $13.8 billion (FY2025)
- Employees: Approximately 71,800
Where Is Gallagher Bassett Made / Based?
- Headquarters: Rolling Meadows, Illinois, USA
Gallagher Bassett Categories & Tags
Brands Owned by Arthur J. Gallagher & Co.
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 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
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Gallagher Bassett Ownership: Pros & Cons
Advantages
- +Fee-based revenue balances commission cyclicality
- +Cross-sell from the Gallagher brokerage client base
- +One of the largest TPAs globally
- +Sticky multi-year claims administration contracts
Considerations
- -Sedgwick holds a larger TPA market share
- -Labor-intensive model tied to claims adjuster capacity
- -Exposure to workers' compensation and tort trends
Frequently Asked Questions About Gallagher Bassett
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Sources & Further Reading
- Gallagher Bassett Official Site
- Gallagher Investor Relations
- AJG 10-K (SEC EDGAR)
- Arthur J. Gallagher Company Page — /companies/arthur-j-gallagher
Competitors to Gallagher Bassett
No direct competitors found in the same category. This could be because Gallagher Bassettoperates in a unique market segment or we're still building our competitor database.
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Independent Alternatives to Gallagher Bassett
Looking for brands with different ownership structures? These similar brands are not owned by Arthur J. Gallagher & Co., giving you alternative choices that support different corporate structures.
InsuranceAllied Insurance
Owned by Nationwide Mutual Insurance Company
Des Moines-founded insurance brand of Nationwide Mutual, serving independent agents and brokers for personal and small commercial lines since 1929.
insuranceindependent-agentsproperty-casualty
Privately Owned
Allied Insurance is privately owned, unlike Gallagher Bassett which is under a publicly traded parent company.
InsuranceAmerican Family Insurance
Owned by American Family Insurance Mutual Holding Company
Flagship insurance brand of the American Family Insurance mutual group, founded in 1927. Auto, home, life, farm, and business coverage sold through exclusive agents in 19 states.
insuranceauto-insurancehome-insurance
Privately Owned
American Family Insurance is privately owned, unlike Gallagher Bassett which is under a publicly traded parent company.
InsuranceAuto-Owners Insurance
Owned by Auto-Owners Insurance Company
Flagship brand of Auto-Owners Insurance Company, the policyholder-owned mutual insurer selling auto, home, business, and life coverage through independent agents since 1916.
insurancemutual-insuranceauto-insurance
Privately Owned
Auto-Owners Insurance is privately owned, unlike Gallagher Bassett which is under a publicly traded parent company.
InsuranceChapter
Owned by Memoir, Inc. (Chapter)
Medicare navigation and advisory brand operated by Memoir, Inc., a private New York company valued at $3 billion in its April 2026 Series E round.
medicareinsurance-advisoryhealth-insurance
Privately Owned
Chapter is privately owned, unlike Gallagher Bassett which is under a publicly traded parent company.
InsuranceFarmers Insurance
Owned by Farmers Insurance Group of Companies
Flagship brand of Farmers Insurance Group, the policyholder-owned insurer selling auto, home, and life coverage through exclusive and independent agents since 1928.
insurancemutual-insuranceauto-insurance
Privately Owned
Farmers Insurance is privately owned, unlike Gallagher Bassett which is under a publicly traded parent company.
InsuranceFM
Owned by FM
The master brand of FM, the mutual commercial property insurer formerly known as FM Global, headquartered in Johnston, Rhode Island.
property-insuranceloss-preventionmutual
Privately Owned
FM is privately owned, unlike Gallagher Bassett which is under a publicly traded parent company.
Arthur J. Gallagher & Co. Stock Information
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