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Marsh McLennan
Global professional services firm providing advice and solutions in the areas of risk
About Marsh McLennan
In 1905, Henry W. Marsh and Donald R. McLennan founded Marsh McLennan, a company that would grow to become a leader in professional services. The duo started with a focus on providing insurance brokerage services, leveraging their expertise to secure contracts with major railroads, which were the lifeblood of American commerce at the time.
Over the decades, Marsh McLennan expanded its services beyond insurance, venturing into risk management, consulting, and financial advisory. This diversification strategy was pivotal in establishing the company as a multifaceted service provider, catering to a wide array of industries.
A significant milestone in the company's history was its initial public offering (IPO) in 1962, which provided the capital necessary to fuel further expansion. This move marked the beginning of a new era, allowing Marsh McLennan to invest in new technologies and acquire other firms to enhance its service offerings.
In recent years, Marsh McLennan has continued its growth trajectory through strategic acquisitions. Notably, in 2024, the company invested $347 million in acquiring six firms, strengthening its position in the wealth management sector. This acquisition strategy has been a cornerstone of its long-term growth plan, enabling the company to adapt to changing market dynamics and client needs.
Today, Marsh McLennan stands as a testament to the vision of its founders, maintaining a strong presence in the global market as a leader in risk, strategy, and people management. Its journey from a small insurance brokerage to a global powerhouse underscores the impact of strategic foresight and adaptability in the business world.
Source: Dealroom company dataAt a glance
- Status
- Listed
- Founded
- 1871
- Headquarters
- New York City, United States
- Listing
- IPO 1983
- Employees
- 17,355
- Open positions
- None listed
- Dealroom signal
- 26.4/100
- Industry
- Health, Fintech
- Sub-industry
- Insurance
- Sector
- Fintech, Risk Management
- Client focus
- b2b
- Investment activity
- 73 companies, latest Jul 2026
- Capital deployed
- $211M
- Preferred round
- ACQUISITION
Knowledge graph
More headlines
Funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| POST IPO DEBT✓Debt | Jun 2026 | $4.3B | — | Citibank | ↗ |
| POST IPO DEBT✓Debt | Feb 2026 | $0 | — | Undisclosed | ↗ |
Financials
Revenue, earnings and other financial measures where available. Years marked “E” are estimates.
Growth signals
Marsh McLennan's team declined 75.3% over the past year.
Similar companies
Company identity and context are open; selected comparison metrics preview what is available on the platform.
Investments and acquisitions
Recent portfolio relationships for companies that also act as investors or acquirers.
Asterra PartnersMadrid, SpainSpecialized insurance and reinsurance for complex corporate risks.
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Hayden Wood Insurance AgencySouthborough, United StatesSpecialty insurance for collector auto and motorsports enthusiasts
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EI
Excel InsuranceUnited StatesAn independent insurance agency with access to multiple carriers for optimal rates on marine, auto, and renters policies
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Arthur Hall InsuranceWest Chester, United StatesIndependent insurance firm specializing in nonprofit and social service organizations, offering risk management and asset protection
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FB
FRT BrokersMilan, ItalyElite insurance broking with tailored risk analysis and competitive coverage schemes for private and commercial clients
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Acumen Solutions GroupNew York City, United StatesCustom insurance solutions for businesses, offering comprehensive coverage and competitive pricing
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McGriff Insurance ServicesCharlotte, United States
$7.8Bvaluation
Horton GroupOrland Park, United StatesInsurance, employee benefits and risk advisory firm
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Hudson Shore GroupRed Bank, United States
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Perkins Insurance AgenciesAbilene, United States
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AC Risk ManagementTown of Huntington, United States
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Fisher Brown Bottrell InsurancePensacola, United StatesComprehensive insurance and risk management solutions
$345Mvaluation
Investors
From Dealroom's funding and investor records, grouped by the round each investor first entered.
Series B and later1 investor entered at this stage
Citibank
Source: Dealroom Talent Intelligence.
Global footprint
Market sentiment
An AI-synthesised read of the highest-engagement posts about Marsh McLennan on X, ranked by likes and reposts, corporate channels excluded.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
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