VerifiedService-based

Marsh McLennan

Global professional services in risk, strategy, and people

New YorkData 2026 · Verified

Founded1871
HeadquartersNew York, United StatesOpen in Maps
Headcount95,000+
Work modelHybrid — verify on careers page

About

Marsh McLennan is a global professional services firm advising clients on risk, strategy, and people through Marsh, Guy Carpenter, Mercer, and Oliver Wyman, with colleagues working across more than 130 countries.

Vision

We build the confidence to thrive through the power of perspective.

Locations

Headquarters

New York, United States

Countries

United StatesUnited KingdomIndiaSingaporeGermany
Contact & locations

Domains & tags

Domains

Insurance brokingReinsuranceHR consultingManagement consulting

Tags

MNCPublic companyProfessional services

Services

  • Marsh — insurance broking and risk
  • Guy Carpenter — reinsurance
  • Mercer — health, wealth, career
  • Oliver Wyman — strategy consulting

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