Revenue and Business Segments - Marsh & McLennan generated over 24billioninannualrevenue,withapproximately6319.9 billion as of December 31, 2024[168]. - The company's senior debt is rated A- by S&P, A3 by Moody's, and A- by Fitch, with a stable outlook[166]. - The company has significant defined benefit pension obligations totaling approximately 11.4billion,withrelatedplanassetsofapproximately12.6 billion as of December 31, 2024[159]. - Approximately 52% of the company's total revenue reported in 2024 was generated from operations outside the U.S.[163]. - The company faces risks related to the integration of acquired businesses and potential legacy liabilities from those acquisitions[151]. - The company faces risks from geopolitical and macroeconomic conditions that could adversely affect its business and financial results[89]. - The company may experience revenue declines due to reduced commission rates from insurance companies seeking to cut expenses[177]. - Volatility in insurance premiums can significantly affect the Company's revenue and profitability, as a large portion of revenue is commission-based on premiums charged by insurers[176]. - The Company faces risks from a general decline in economic activity, which may reduce demand for insurance and reinsurance services, adversely impacting commission revenue[175]. Cybersecurity and Technology Risks - The Company has implemented a cybersecurity risk management program based on industry standards to manage risks associated with cybersecurity incidents[194]. - The company is actively investing in generative AI tools, including its internal tool LenAI, to enhance data security and mitigate associated risks[130]. - The company faces increasing risks from cyberattacks, including advanced persistent threats and the use of AI by adversaries to exploit vulnerabilities[108]. - The complexity of technologies and reliance on third-party vendors heightens the risk of security breaches, with ongoing efforts to improve data protection potentially revealing undiscovered incidents[109]. - The company may incur substantial costs to comply with regulatory requirements, which could impact its operational capabilities[101]. - The company relies on numerous third-party vendors for data handling increases the risk of supply chain attacks, as seen in high-profile breaches like the October 2023 attack on Okta[112]. Acquisitions and Growth Strategy - Marsh McLennan Agency (MMA) has acquired over 125 agencies since 2009, expanding its service offerings in business insurance and employee benefits[23]. - The company has made a total of 86 acquisitions from 2020 to 2024, including McGriff Insurance Services and Gerolamo Holding[150]. - The company collaborates across its four market-leading businesses to deliver new solutions for managing complex risks[213].