Marsh (MRSH) Business Profile

What it does

Marsh is a professional-services company founded in 1905 and headquartered in New York City. John Q. Doyle is President and Chief Executive Officer. It advises clients in risk, reinsurance and capital, people and investments, and management consulting across 130 countries.

Its Risk and Insurance Services segment helps businesses, government entities, professional-service organizations and individuals understand risks, design insurance programs, place insurance with carriers, manage claims and consider alternatives to conventional insurance. Marsh Risk handles insurance broking, risk management, program management, risk consulting, analytical modeling and alternative-risk financing. Its Corporate business serves middle-market clients, including through Marsh McLennan Agency (MMA), while Commercial & Consumer serves clients with less complex risks. MMA also provides employee health and benefits, retirement, wealth-management and private-client insurance services.

Guy Carpenter is the reinsurance intermediary: it helps insurance companies and other clients transfer portions of their own risks to reinsurers, and provides actuarial, advisory and analytics services. It also works on insurance-linked securities, catastrophe bonds, sidecars, capital raising and M&A advice.

The Consulting segment comprises Mercer and Marsh Management Consulting. Mercer advises organizations on employee health programs, retirement plans, investment management, workforce matters and executive remuneration. Marsh Management Consulting provides management, strategic, economic and brand consulting through Oliver Wyman, Lippincott and NERA Economic Consulting.

How it makes money

Marsh has two operating segments: Risk and Insurance Services and Consulting. Risk and Insurance Services generated $17.3 billion in FY2025 revenue, or 63.8% of company revenue. Consulting generated $9.8 billion, or 36.2%.

Marsh Risk and Guy Carpenter receive commissions and fees for brokerage and consulting. The amount depends on the coverage, insurer or reinsurer selected, and the role the broker performs in negotiating with clients. Marsh Risk also receives payments from insurers for consulting, analytics, administration, underwriting services, facility management and sponsorship programs. Some contingent commissions depend on placement volume or profitability, primarily in MMA and parts of international operations. The segment also earns interest on certain client premiums and claims proceeds held in a fiduciary capacity; these funds are not available for general corporate purposes.

Consulting is principally fee-based. Marsh Management Consulting receives client fees. Mercer receives client fees, commissions, and fees linked to assets or members. Its health business commonly earns insurance-placement commissions and supplemental insurer compensation tied to factors including account volume, growth and retention. Its investment-management and administration activities can earn fees based on assets under administration or management, or on a per-member basis. Mercer managed approximately $692 billion in assets worldwide at December 31, 2025.

For the latest reported periods, consolidated revenue was $27.0 billion in FY2025 and $6.9 billion in Q3 2026. Management said on the Q3 2026 call that Risk and Insurance Services revenue was $4.2 billion and Consulting revenue was $2.7 billion in that quarter.

Customers and how it sells

Marsh serves a broad set of customers rather than a customer group identified as concentrated. Marsh Risk serves businesses, government entities, professional-service organizations and individuals. Its middle-market offering is delivered globally through Corporate and MMA; its Commercial & Consumer business addresses less complex risks. MMA serves individuals and mid-market organizations, including in business insurance, employee benefits, retirement, wealth management and private-client insurance. Guy Carpenter serves clients seeking reinsurance broking, risk-management and capital-market solutions. Mercer works with employers, retirement plans and other investment pools, while Marsh Management Consulting serves clients across industries.

The company advises clients in 130 countries. The United States was its largest reported geography, producing $13.3 billion in FY2025 revenue, or 49.3%. The United Kingdom produced $3.8 billion, or 14.1%, and other countries produced $9.9 billion, or 36.6%. Marsh has 95,000 employees.

The business uses direct advisory and brokerage relationships, including regional agencies within MMA, alongside specialist teams. Outside the United States, Mercer and Marsh Risk jointly go to market for health-benefits brokerage and consulting; in the United States and Canada, MMA provides related advice. Management said on the Q3 2026 call that 93% of wholesale trading in London was digital.

Suppliers and costs

Marsh is a people-led services business, with 95,000 employees at December 31, 2025. It does not describe a manufacturing operation or identify a sole-source supplier. Its client work depends on qualified colleagues, insurance and reinsurance markets, technology and operations, and a large number of vendors and other third parties that perform key operational functions or provide services to clients.

Compensation and benefits are a central expense category. Consolidated operating expenses were $20.8 billion in 2025, reflecting increased compensation and benefits, including higher base salaries, incentive compensation and acquisition effects. The company also recorded $222 million of restructuring costs in 2025, including severance, lease exit charges, consulting and outside services.

Marsh launched Thrive, a three-year program focused on brand strategy, client value, growth and efficiency, and formed Business Client Services to centralize investments in operations, data, AI and analytics. Management said on the Q3 2026 call that it expected Thrive to generate $600 million in savings, with associated costs of approximately $750 million. Management also said those savings would support investment in sales, capabilities, brand and technology.

Competitive position

Marsh faces competition across insurance broking, reinsurance, consulting, investment-related services and outsourcing. It competes with insurance and reinsurance brokers operating globally, regionally, nationally and locally; insurers that sell, distribute and service products directly; commercial and investment banks; consultants; online platforms; managing general agents; affinity programs; and private-client providers. Clients can self-insure, obtain direct coverage or bring some work in-house.

In Consulting, Mercer competes with investment consulting firms, asset managers, financial institutions, insurers, consumer businesses, digital consultancies, independent consulting and outsourcing firms, and firms affiliated with accounting, technology and financial services. New entrants using generative AI are also part of the competitive landscape. The company states that competition is based on service sophistication, range, quality and cost, and that competition for qualified colleagues is intense.

No individual competitor is named as a competitor in the available information.

Our reading: Marsh’s operating presence across 130 countries and its broad set of risk, reinsurance, people, investment and consulting services are meaningful sources of client-service breadth, though they do not prevent competition from specialist and direct providers.

Our reading: its proprietary data, analytics and modeling are a developing moat source, because management is incorporating them into AI-enabled client tools and digital placement workflows; their durability depends on execution, data protection and continued investment.

Our reading: MMA’s acquired-agency network and the company’s client relationships support distribution, but direct insurance, self-insurance and technology-enabled competitors limit exclusivity.

Growth opportunities

Marsh’s stated growth initiatives include adding producers and consultants, developing new capabilities, building its brand, improving client service, and applying data, automation and AI. Its 2025 revenue was $27.0 billion, with Risk and Insurance Services revenue growing 12.1% and Consulting revenue growing 7.24% from FY2024.

The company’s 2025 acquisition activity included 20 acquisitions for total purchase consideration of $857 million. Marsh also completed the McGriff acquisition in November 2024, adding a U.S. insurance-broking and risk-management provider. Management said on the Q3 2026 call that it expects to continue investing in the middle market both organically and through acquisitions, while maintaining a disciplined and balanced capital-allocation approach.

Thrive and Business Client Services are intended to create capacity for reinvestment through process, automation and operating-model efficiencies. Management said on the Q3 2026 call that it increased the Thrive savings target to $600 million and expected the vast majority of actions to be taken by the end of 2028. It said the program supports investments in sales capacity, technology, AI-enabled products and client capabilities.

Management said on the call that digital infrastructure is a growth driver. It launched Stratus Exchange, offering access to up to $10 billion in property coverage for operating digital facilities, following Nimbus, a $2.7 billion construction-risk insurance facility. It also said management consulting was seeing AI-related demand, while Broker Workbench was intended to make UK wholesale risk placement faster.

Structural risks

• Marsh faces significant competitive pressure in each business, including disintermediation. Direct insurance providers, client self-insurance, online platforms, consultants and other intermediaries can reduce brokerage or consulting demand.

• Insurance-market pricing and economic conditions can affect revenue growth. Management said on the Q3 2026 call that global property rates decreased 10%, while reinsurance faced soft conditions driven by abundant traditional and alternative capital.

• Marsh is subject to extensive licensing, insurance, pension, investment, securities, privacy, cybersecurity and financial-crime regulation across jurisdictions. Changes in intermediary-compensation rules, allegations of conflicts or anti-competitive conduct, and compliance failures could affect the business.

• The company has uninsured exposure from errors and omissions, breach of fiduciary duty and other claims. It also faces cyber, data-protection and technology risks if systems are breached or client information is not protected.

• Talent is central to delivery. The company identifies loss of senior management or key colleagues, and an inability to attract, retain and develop talent, as risks; competition for qualified colleagues is intense.

• Consulting revenue can decline with economic conditions, asset-market values, client financial conditions, regulation, pension-plan trends, utilization and pricing. Foreign-exchange movements, geopolitical conditions and acquisitions or dispositions can also affect reported results.

Bottom line

Our reading

Our reading: Marsh is a global, people-intensive intermediary and advisory business whose revenue comes from insurance and reinsurance commissions and fees, consulting fees, and some asset- or member-linked fees. Its scale spans risk and insurance services, people and investments, and management consulting, while its United States revenue exposure and broad international operations both matter to results. The business is exposed to insurance pricing cycles, competition, regulatory obligations, talent costs and technology risks. Its current reinvestment program combines efficiency efforts with spending on sales, data, AI and client-service capabilities.