AIG vs Marsh McLennan Agency

“AIG” is the marketing name for American International Group, Inc.'s worldwide operations. AIG says insurance products are written or provided by subsidiaries or affiliates; its U.S. legal notice lists multiple U.S.-domiciled property and casualty insurers but does not identify which company would issue a particular commercial policy. ^1,2Company-reported. AIG group naming and the listed U.S.-domiciled property and casualty companies. The legal notice is not a policy-specific carrier assignment or complete ownership chart.

As of 2026-09-28, Marsh’s US legal-entity page lists Marsh & McLennan Agency LLC as the current entity name for Marsh Agency (formerly MMA) and Marsh Agency LLC as proposed, with displayed state completion statuses marked TBD. Louisiana’s regulator lists Marsh & McLennan Agency LLC as a producer agency with active casualty, accident and health or sickness, life, property, and surplus-lines authorities through 2028-03-31. This is Louisiana-specific producer evidence, not evidence of an insurer role or nationwide licensing. ^25,16Verified. Current entity name and proposed legal-name transition as listed on Marsh’s US legal-entity page, plus producer-authority evidence for Louisiana only, accessed 2026-09-28. No other state licensing was audited; this record does not establish an insurer or underwriting role.

Marsh McLennan Agency describes itself as a business of Marsh and lists business insurance, employee health and benefits, retirement and wealth, and private-client insurance services across the United States and Canada. ¹⁷Company-reported. Current MMA company description. Does not establish corporate ownership structure, the legal entity for a particular placement, or an insurer role.

AIG’s Surplus Lines section says its commercial insurance solutions serve small, middle-market, and large enterprises. The same section separately describes Lexington Casualty as an experienced excess-and-surplus-lines casualty provider; it does not explicitly assign all three customer-size segments to Lexington Casualty. ³Company-reported. AIG’s published Surplus Lines section; customer-size statement and Lexington Casualty description are adjacent but not explicitly attributed to the same business. This does not establish a provider-wide customer focus or product-specific issuer.

MMA describes Marsh Agency as a separate business unit serving as an advocate and broker for the middle market. ²⁸Company-reported. Company-stated role and customer focus for the future Marsh Agency operating brand; not a revenue, size, or eligibility threshold.

MMA’s US industry directory includes pages for construction, financial institutions, healthcare, manufacturing, real estate, and transportation and trucking. These are examples of stated sector focus, not a complete appetite or eligibility list. ²³Company-reported. Examples from MMA’s national US industry directory; the directory is evidence of stated sector focus, not a complete appetite or eligibility list.

AIG lists a North America myAIG portal for brokers and agents to access loss runs, policy documents, applications, and tools, and a separate U.S. portal for producer appointment requests. The public pages do not establish that a business can complete an online purchase or bind coverage directly. ⁴Company-reported. Publicly listed North America broker/agent portal functions and U.S. producer appointment requests. Authenticated workflow and product-specific submission or binding steps were not reviewed.

MMA’s US small-business page lists general liability, commercial property, workers’ compensation, professional liability, commercial auto, and cyber liability, and invites buyers to call 833-256-4266 for a personalized quote. The page also contains a small-business specialist form, but its function and any online application, purchase, or binding route are not established by the page reviewed. ³⁰Company-reported. US small-business landing page only. The phone invitation does not establish quote speed, eligibility, online purchase or binding; the embedded specialist form's function was not established.

AIG lists its North America broker portal as a place for brokers and agents to access loss runs, policy documents, applications, and tools. The page does not explain how renewals are managed or promise renewal terms or timing. ⁴Company-reported. Public description of a North America broker/agent portal; authenticated functions and account-specific availability were not reviewed.

MMA says the Marsh Agency brand transition will not change clients’ account manager, team, or point of contact, and will not affect existing policies or programs; clients may see the legal-name change during renewals. This describes the rebrand transition, not MMA’s general renewal process. ²⁸Company-reported. Only the announced Marsh Agency rebrand and its stated effect on existing clients; this does not document MMA’s general renewal workflow, renewal service level, or policy terms.

MMA’s Tampa office page lists InsurLink for policy and endorsement access, CSR24 for certificates, carrier contact information for commercial and personal-lines claims, and a local-consultant contact route. ³²Company-reported. Services and client tools listed on the Tampa, Florida office page only. The claims listing provides carrier contact information and does not establish that MMA adjusts claims.

AIG says insureds and brokers can report primary property or casualty claims online for Auto Liability, General Liability, Property, and Aerospace, attach documents, and track adjuster assignment and claim closure. AIG says options vary by line and country. ⁵Company-reported. AIG's stated IntelliRisk claim portal functions for named primary property/casualty lines. This does not describe every commercial line, claim outcome, or policy obligation.

On its business-interruption page, MMA says it will advocate with insurers for clients if complex claim issues arise. This is a company-reported service statement; it does not establish claim outcomes or an adjusting/payment role. ¹⁸Company-reported. Company-described support for complex claims in the business-income and contingent-business-interruption page context; not a promise of claim outcomes or evidence that MMA adjusts or pays claims.