Company Description
Marsh & McLennan Companies, Inc., doing business as Marsh McLennan, is a global professional services firm in the finance and insurance sector. The company is associated with the insurance agencies and brokerages industry and is listed on the New York Stock Exchange. According to its public descriptions in company and business unit communications, Marsh McLennan focuses on risk, strategy and people, and operates through several businesses that provide insurance brokerage, risk and reinsurance services, investment and retirement advisory, talent and workforce consulting, and management consulting.
Business focus and operating businesses
Available disclosures describe Marsh McLennan as a global leader in risk, reinsurance and capital, people and investments, and management consulting, advising clients in 130 countries. Its activities span insurance brokerage and risk advisory, reinsurance services, talent management, investment advisory, and management consulting. These capabilities are delivered through four named businesses referenced in multiple company communications: Marsh, Guy Carpenter, Mercer and Oliver Wyman.
Marsh is described as the world’s top insurance broker and risk advisor, providing insurance brokerage and risk advisory services. Guy Carpenter is identified as part of Marsh McLennan’s reinsurance and risk-related capabilities. Mercer is presented as a business that helps clients realize investment objectives, shape the future of work, and enhance health and retirement outcomes for their people. Oliver Wyman is described as a management consulting firm combining industry knowledge with specialized expertise to help clients optimize their business, improve operations and accelerate performance.
Global scale and industry role
Across its businesses, Marsh McLennan reports advising clients in 130 countries. Company and business unit descriptions state that Marsh McLennan has annual revenue of over $24 billion and more than 90,000 colleagues worldwide. These figures underline the firm’s large global footprint in insurance brokerage, reinsurance services, investment and retirement advisory, workforce consulting and management consulting.
Within the insurance agencies and brokerages industry, Marsh McLennan is associated with activities such as business insurance, employee health and benefits, retirement and wealth, and private client insurance solutions through Marsh McLennan Agency, a business of Marsh. Communications from Marsh McLennan Agency describe it as providing business insurance, employee health and benefits, retirement and wealth, and private client insurance solutions across the US and Canada, illustrating how Marsh McLennan’s insurance-related services extend to regional and local markets.
Advisory and consulting capabilities
Marsh McLennan’s advisory capabilities are highlighted in several thematic reports and surveys issued by its businesses. Mercer conducts remuneration and workforce-related studies, such as total remuneration surveys that analyze salary trends, incentive plans, and benefits structures across thousands of roles and hundreds of companies in specific markets. These studies emphasize Mercer’s focus on data-driven insights in compensation, benefits and workforce strategy.
Oliver Wyman produces industry-focused research and insight reports, such as analyses of the global sports economy and the industrial goods sector, in collaboration with organizations like the World Economic Forum and industry associations. These reports explore growth drivers, risk factors and strategic responses in sectors such as sports and equipment manufacturing, reflecting Oliver Wyman’s role in management consulting and industry analysis.
Marsh publishes research on risk topics such as cyber risk, ransomware, and third-party cyber incidents. For example, Marsh’s cyber-focused reports summarize survey results from cyber risk leaders across multiple countries and regions, highlighting trends in cyber risk management confidence, investment priorities and key threats.
Corporate structure and brand
Marsh & McLennan Companies, Inc. is incorporated in Delaware, as indicated in its SEC filings. The company has disclosed that it is changing its New York Stock Exchange ticker symbol from MMC to MRSH in connection with a brand change to Marsh, while its common stock continues to be listed on the NYSE. An 8-K filing shows that the company’s common stock, par value $1.00 per share, is registered under the trading symbol MRSH on the New York Stock Exchange.
The company has also reported corporate governance developments through SEC filings, such as amendments and restatements of its bylaws to reflect updates to the Delaware General Corporation Law, changes to advance notice provisions for director nominations and stockholder proposals, clarification of voting standards for matters submitted to stockholders, and clarification of the authority of the chair of stockholder meetings.
Capital management and corporate actions
Marsh McLennan’s Board of Directors has authorized a renewal of the company’s share repurchase program, permitting management to repurchase up to $6 billion of the company’s common stock. This authorization supersedes prior repurchase authorizations and reflects the company’s use of share repurchases as one element of its capital management approach, as disclosed in its public announcements.
The company has also reported board-level changes, such as the appointment of an independent director to its Board and Audit Committee, through Form 8-K filings. These filings describe the director’s status as a non-management director and reference the company’s compensation arrangements for independent directors.
Mergers, acquisitions and expansion activities
Within the insurance agencies and brokerages space, Marsh McLennan expands its presence through Marsh and Marsh McLennan Agency. For example, Marsh McLennan Agency has announced the acquisition of several privately owned Honolulu, Hawai‘i-based insurance brokerages, including Atlas Insurance Agency, Pyramid Insurance Centre and IC International, from Tradewind Group. These brokerages provide insurance solutions to businesses and individuals throughout Hawai‘i and have niche industry specializations such as municipality, transportation and hospitality. Following the acquisition, employees from the acquired firms join Marsh McLennan Agency and continue to operate from their existing office locations, illustrating Marsh McLennan’s approach of combining local expertise with broader resources.
Research, insights and thematic reports
Marsh McLennan’s businesses regularly publish research that addresses sector-specific and cross-industry themes. Examples include:
- Sports economy analysis by Oliver Wyman, examining revenue growth projections, physical inactivity trends and climate-related risks affecting the global sports economy, in collaboration with the World Economic Forum.
- Industrial goods sector research by Oliver Wyman and the Association of Equipment Manufacturers, analyzing sentiment among equipment manufacturers, tariff-related uncertainty, and strategic responses in construction and agricultural manufacturing.
- Cyber risk surveys by Marsh, summarizing how organizations worldwide assess cyber risk management, plan cybersecurity investments, and respond to threats such as ransomware and third-party cyber incidents.
- Compensation and benefits surveys by Mercer, such as total remuneration surveys that track salary increase expectations, incentive plan prevalence, and flexible benefits offerings in specific national markets.
These publications demonstrate how Marsh McLennan’s businesses apply their expertise in risk, strategy, investments and people to generate data-driven insights for clients and stakeholders.
Regulatory reporting and governance
As a public company with common stock listed on the New York Stock Exchange, Marsh & McLennan Companies, Inc. files reports with the US Securities and Exchange Commission, including Forms 8-K that disclose material events. Recent 8-K filings have covered topics such as financial results for a fiscal quarter, amendments to bylaws, board appointments, and other corporate actions. These filings provide investors with information about the company’s governance, financial reporting and significant developments.
Position within finance and insurance
Within the broader finance and insurance sector, Marsh McLennan’s activities span insurance brokerage, reinsurance services, investment and retirement advisory, workforce and talent consulting, and management consulting. Its businesses serve clients in multiple industries and geographies, and its published descriptions emphasize advising clients in 130 countries through its four main businesses. This combination of insurance-related services and advisory and consulting capabilities positions Marsh McLennan as a diversified professional services firm focused on risk, strategy and people.