MIM Prep Logo MIM Prep Sign in
All internships
Arthur J. Gallagher & Co. logo

Arthur J. Gallagher & Co.

Global insurance brokerage, risk management and consulting firm known for commercial insurance, specialty risks and benefits advisory.

Careers site

Highlights

Founded 1927
Established by Arthur J. Gallagher in Chicago.
71,000 employees
Worldwide figure reported as of September 30, 2025.
1,116 offices
Global office count reported by Gallagher.
130+ countries served
Gallagher's global network provides services across more than 130 countries.
$13.8B revenue
Brokerage and Risk Management segments for the 12 months ended December 31, 2025.
#3 U.S. broker, 2025
Business Insurance ranking by 2024 U.S. brokerage revenue of $7.09B.

About Arthur J. Gallagher & Co.

Founded by Arthur J. Gallagher in Chicago in 1927, the company is headquartered in Rolling Meadows, Illinois. It has grown from a local insurance agency into a global brokerage and consulting group serving clients through owned operations and partner networks.

Gallagher arranges insurance and reinsurance, provides risk-management and claims services, and advises employers on benefits, HR and organizational wellbeing. Its client base spans commercial and personal lines, from smaller businesses to multinational organizations.

The firm is especially relevant for students interested in commercial broking, specialty insurance, reinsurance, risk consulting and employee benefits. Its specialty operation works on complex risks in areas including aerospace, construction, energy, marine, property and casualty, while its UK early-career programmes include broking, underwriting, operations, technology, project management and risk.

Current openings

1 live · 3 total
Graduate Actuarial Analyst, Pension Schemes
Graduate · UK
Dates TBC
TBC
Graduate Actuarial Analyst, Pension Schemes
Graduate · UK
Closed
29 Oct 25 closed
Reinsurance Graduate - REACH 2026
Graduate · UK
Closed
21 Jan 26 closed

Sources

Never miss an opening

Browse live finance openings across the UK & EU and get new ones by email.

See the internship tracker