AIG vs Marsh McLennan Agency: How Do They Compare for General Liability Insurance?

AIG’s directory identifies selected program audiences, while Marsh McLennan Agency says advisers assess operations, assets, liabilities and loss exposure when arranging General Liability. 3,6

What Is AIG?

AIG is the marketing name for American International Group, Inc.; AIG says its insurance products are written or provided by subsidiaries or affiliates. Its U.S. business pages list commercial casualty, property, cyber, management and professional liability, and specialty programs, but a brand-level page does not identify the insurer for a particular policy. 1,2

Read the AIG profile

Read the AIG General Liability Insurance page

What Is Marsh McLennan Agency?

Marsh McLennan Agency provides business insurance and employee health and benefits, alongside retirement, wealth, and private-client services across the United States and Canada. Its US small-business page lists six common coverage types and directs buyers to request a personalized quote by phone; the insurer and terms for a specific placement must be confirmed in the proposal. 4,5

Read the Marsh McLennan Agency profile

Read the Marsh McLennan Agency General Liability Insurance page

What Is General Liability Insurance?

General liability can protect your business when a customer or visitor claims you caused injury or damaged their property. It suits businesses serving customers or working on their premises; your own building, tools and stock need property coverage. 7,8,9

Read the full coverage guide

Key Differences in General Liability Insurance

Named program fit or exposure review

AIG’s directory ties General Liability to named programs for specific audiences such as crane and rigging, dental, leisure and towing businesses. Marsh McLennan Agency describes advisers evaluating a business’s operations, assets, liabilities and loss exposure to discuss GL. A buyer can use this difference to choose the first conversation: match your class to an AIG program, or bring your exposure details to an MMA adviser. Neither public description confirms an offer for your account. 3 6

What the public descriptions establish

Their published roles call for different quote questions. AIG describes program-level underwriting and claims resources for program administrators; Marsh McLennan Agency describes arranging coverage through an adviser or specialist. Ask AIG which administrator and issuing insurer apply to the named program; ask MMA which market would issue the proposed policy and who will service it. 3 6

Requesting the specific policy form

AIG’s overview names particular programs but leaves limits and policy terms to the applicable form. MMA’s page likewise describes an advisory review, not policy wording. For either quote, compare the same operations, limits, exclusions and endorsements, and confirm whether completed-operations protection is included or separately addressed. 3 6

What to Confirm in General Liability Insurance Quotes

  • Which AIG program covers your class, and what limits and forms does its administrator propose?
  • Which insurer and policy wording would MMA recommend after reviewing your operations and loss exposures?

Review Scores

These averages can combine ratings for different products, locations, and customer groups, including approximate BBB grade conversions. Read each review for the sources, scope, and calculation.

AIG

4.4/ 10

Review Score

2 rated sources

Customer ratings for AIG are low: Trustpilot shows 1.9 out of 5 from 252 reviews, and NerdWallet gives 2.5 stars and notes more claims complaints than expected. These pages cover many AIG products and countries, so they only loosely describe business insurance.[1][2]

Read AIG reviews

Marsh McLennan Agency

8.2/ 10

Review Score

2 rated sources

There are almost no public customer reviews of Marsh McLennan Agency (MMA). Trustpilot shows 3.2 out of 5, but from a single review, and BBB shows an A grade with four complaints closed in three years.[8][9][1]

Read Marsh McLennan Agency reviews

Offering Details

AIG vs Marsh McLennan Agency: General Liability Insurance: documented features by provider

CriteriaAIG General Liability Within Named ProgramsMarsh McLennan Agency general liability (official overview)
Role in This Line

This evidence supports general liability only within the named AIG programs cited here; it does not establish one uniform standalone general liability product across all businesses. 3Company-reported. Role in this product is limited to the description on the linked AIG source.

Marsh McLennan Agency describes arranging general liability for the audience stated on the cited product page. 6Company-reported. general liability marketed by marsh-mclennan-agency; scope is limited to the cited official product overview and described audience. This is not a policy form or a universal eligibility statement.

Who It’s For

AIG lists general liability within selected programs for audiences such as community associations, crane and rigging businesses, dental practices, leisure operations, manufactured housing, motorsports, psychoanalysts and towing operations. This is not a universal industry eligibility statement. 3Company-reported. Audience is the segment AIG names on the linked source; this is not an underwriting decision, quote or guarantee of availability.

Businesses seeking commercial insurance and risk-management advice; suggested coverage depends on operations and exposure. 6Company-reported. general liability marketed by marsh-mclennan-agency; scope is limited to the cited official product overview and described audience. This is not a policy form or a universal eligibility statement.

Coverage Features

The program directory identifies General Liability as a coverage component in the cited named programs. It does not publish the occurrence definitions, covered operations, limits, exclusions or endorsements for any buyer’s policy. 3Company-reported. AIG’s public product description is not the policy. Actual entitlement depends on the applicable issued form, endorsements and declarations.

The cited product page describes general liability as a business coverage option that advisers evaluate alongside the organization's operations, assets, liabilities, and loss exposure. Marketing description only; actual coverage, exclusions, conditions, limits, and availability depend on the issued policy and jurisdiction. 6Company-reported. general liability marketed by marsh-mclennan-agency; scope is limited to the cited official product overview and described audience. This is not a policy form or a universal eligibility statement.

Limits and Retentions

No general liability limit, deductible or retention for a particular program is stated in the directory. Confirm the program-specific quote and issued form. 3Not publicly disclosed. This statement reports only what the linked public source discloses and does not substitute for a quote or issued policy.

The cited overview does not set a universal limit or retention for this line. Ask for the proposed policy form, limits, retentions, exclusions, and conditions in the quote. 6Not publicly disclosed. Only the cited marketing page was reviewed for published limit and retention information; no policy-form entitlement is inferred.

Risk Services

AIG describes underwriting, claims and loss-control teams for its Program Administrators, including program development support and admitted/non-admitted structures. These program services are separate from policy entitlement. 3Company-reported. The linked page describes company-reported support; specific account services and third-party arrangements must be confirmed.

Confirm in your quote.

How to Apply

Confirm in your quote.

The page invites organizations to contact a Marsh McLennan Agency adviser or specialist to discuss placement. The page does not establish a quote, bind, or coverage-effective timeline. 6Company-reported. general liability marketed by marsh-mclennan-agency; scope is limited to the cited official product overview and described audience. This is not a policy form or a universal eligibility statement.

Full Comparison

More AIG vs Marsh McLennan Agency Comparisons

Other General Liability Insurance Comparisons

Sources

AIG

  1. Investor Relations. American International Group, Inc. (AIG); About AIG and legal footer; lines 244–246 and 327–331. Accessed 2026-09-28.
  2. Business. AIG US; Surplus Lines heading and paragraph, lines 357–359. Accessed 2026-09-28.
  3. AIG Programs Insurance. AIG; Official AIG program directory, lines 384–397 (community associations), 409–423 (crane/rigging), 424–437 (dental), 485–498 (leisure), 510–525 (manufactured housing), 526–543 (motorsports), 544–552 (psychoanalysts), and 611–626 (towing): named audiences and GL schedule entries. Program administration and policy caveat at lines 242–284 and 680–680. Accessed 2026-09-30.

Marsh McLennan Agency

  1. Who We Are. Marsh McLennan Agency; Lines 193-195: ‘a business of Marsh’ and company-listed service lines across US and Canada. This does not establish the legal entity for an account, corporate ownership chart, or insurer role. Accessed 2026-09-29.
  2. Small Business Insurance Solutions. Marsh McLennan Agency; Lines 205-207: small-business audience and call invitation; lines 224-249 list six coverage categories and short descriptions; line 264 is an embedded form whose function is not stated. No form submitted. Accessed 2026-09-29.
  3. Business Insurance | MMA. Marsh McLennan Agency; General liability is named among business insurance coverage options; advisers assess exposure and limits. Accessed 2026-09-30.

General Liability Insurance Guide

  1. Commercial general liability insurance. Insurance Information Institute; Coverage A; Coverage B; Coverage C; Purchasing commercial general liability insurance. Accessed 2026-09-16.
  2. Commercial Insurance Guide. California Department of Insurance; Commercial General Liability; Commercial Automobile; What Should I Expect from a Broker-Agent?; How Are Commercial Policies Rated? Accessed 2026-09-16.
  3. Commercial General Liability Coverage Form. ISO; specimen hosted by Hiscox; I.A pp.1–5; I.B pp.6–7; I.C pp.7–8; Supplementary Payments p.8; II pp.9–10; III p.10; IV pp.10–12. Accessed 2026-09-16.

Updated . Spot, a product of Tools for Enlightenment, publishes this research and works in the commercial insurance market. The comparison applies the same criteria to both providers. Editorial policy. To suggest a correction, contact Spot with the page URL and supporting source.

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