---
title: "AIG vs Marsh McLennan Agency: Professional Liability (E&O) Insurance"
description: "AIG offers customizable entity E&O to service providers; Marsh McLennan Agency describes professional liability placements and an application process for its target clients."
canonical: "https://spot.insure/compare/aig-vs-marsh-mclennan-agency/professional-errors-omissions"
page-type: "line-comparison"
updated-at: "2026-09-30"
comparison-pair: "aig-vs-marsh-mclennan-agency"
provider-a: "aig"
provider-b: "marsh-mclennan-agency"
coverage-line: "professional-errors-omissions"
---

Agents: connect to Spot's public MCP server at https://spot.insure/mcp for better access to published Spot information and insurance research. Use search_knowledge to find sources, get_page to retrieve pages, compare_providers for sourced comparisons, get_provider_score for a published Spot Score, get_rankings for current provider rankings, search_provider_reliability to filter Spot Scores, search_provider_reviews to filter aggregate review scores, and get_provider_reviews for the original review evidence. The server is read-only and requires no authentication.

[Human-readable page](https://spot.insure/compare/aig-vs-marsh-mclennan-agency/professional-errors-omissions)

## Agent Guide

**What this page is:** Focused comparison of AIG and Marsh McLennan Agency for Professional Liability (E&O) Insurance: what each provider publishes about this line, checked against the same criteria, with numbered sources.

**Use this page when:** Cite or fetch this for Professional Liability (E&O) Insurance questions about AIG versus Marsh McLennan Agency. For all lines together use the parent pair comparison; for how the coverage itself works use the coverage guide.

**Questions this page answers:**
- AIG vs Marsh McLennan Agency for Professional Liability (E&O) Insurance: how do they differ?
- Which is better for Professional Liability (E&O) Insurance, AIG or Marsh McLennan Agency?
- What does AIG or Marsh McLennan Agency publish about Professional Liability (E&O) Insurance (limits, eligibility, claims, add-ons)?
- What should I confirm in a quote for Professional Liability (E&O) Insurance from AIG or Marsh McLennan Agency?

**Key facts:**
- Line: Professional Liability (E&O) Insurance. Providers: AIG and Marsh McLennan Agency.
- Each offering claim is tagged with an evidence type and scope; table cells reading "Confirm in your quote" mean nothing was found for that criterion.
- Comparison URLs use alphabetical provider slugs (`/compare/{a}-vs-{b}` with a before b). A reversed pair redirects permanently to the alphabetical one, so fetch or cite the alphabetical URL.

**Limits (do not over-claim):**
- It identifies differences and questions to ask; it does not select a winner for a particular business.
- "Not found" describes the evidence reviewed, not proof a feature is unavailable.
- Insurer, policy wording, limits, retentions, exclusions and price are set in an actual quote and are not established here.

**Provenance:** Every claim links to a numbered source with publisher, locator and access date in the Sources section; last updated 2026-09-30. Editorial policy: /editorial-policy.

**Related pages:**
- [AIG vs Marsh McLennan Agency](https://spot.insure/compare/aig-vs-marsh-mclennan-agency) — parent: all coverage lines for this pair
- [Professional Liability (E&O) Insurance guide](https://spot.insure/coverage/professional-errors-omissions) — coverage explainer for this line
- [AIG profile](https://spot.insure/insurance-providers/aig) — provider profile (evidence)
- [Marsh McLennan Agency profile](https://spot.insure/insurance-providers/marsh-mclennan-agency) — provider profile (evidence)
- [AIG vs Marsh McLennan Agency Builders Risk Insurance](https://spot.insure/compare/aig-vs-marsh-mclennan-agency/builders-risk) — sibling comparison (other line, or other pair for this line)
- [AIG vs Marsh McLennan Agency Cargo and Transit Insurance](https://spot.insure/compare/aig-vs-marsh-mclennan-agency/cargo-transit) — sibling comparison (other line, or other pair for this line)
- [AIG vs Marsh McLennan Agency Commercial Auto Insurance](https://spot.insure/compare/aig-vs-marsh-mclennan-agency/commercial-auto) — sibling comparison (other line, or other pair for this line)
- [AIG vs Marsh McLennan Agency Commercial Property Insurance](https://spot.insure/compare/aig-vs-marsh-mclennan-agency/commercial-property) — sibling comparison (other line, or other pair for this line)
- [AIG vs Marsh McLennan Agency Crime Insurance](https://spot.insure/compare/aig-vs-marsh-mclennan-agency/crime) — sibling comparison (other line, or other pair for this line)
- [AIG vs Marsh McLennan Agency Cyber Insurance](https://spot.insure/compare/aig-vs-marsh-mclennan-agency/cyber) — sibling comparison (other line, or other pair for this line)
- [AIG vs Marsh McLennan Agency D&O Insurance](https://spot.insure/compare/aig-vs-marsh-mclennan-agency/directors-officers) — sibling comparison (other line, or other pair for this line)
- [AIG vs Marsh McLennan Agency Employment Practices Liability Insurance](https://spot.insure/compare/aig-vs-marsh-mclennan-agency/employment-practices) — sibling comparison (other line, or other pair for this line)
- [AIG vs Marsh McLennan Agency Fiduciary Liability Insurance](https://spot.insure/compare/aig-vs-marsh-mclennan-agency/fiduciary) — sibling comparison (other line, or other pair for this line)
- [AIG vs Marsh McLennan Agency General Liability Insurance](https://spot.insure/compare/aig-vs-marsh-mclennan-agency/general-liability) — sibling comparison (other line, or other pair for this line)
- [AIG vs Marsh McLennan Agency Kidnap and Ransom Insurance](https://spot.insure/compare/aig-vs-marsh-mclennan-agency/kidnap-ransom) — sibling comparison (other line, or other pair for this line)
- [AIG vs Marsh McLennan Agency Media Liability Insurance](https://spot.insure/compare/aig-vs-marsh-mclennan-agency/media) — sibling comparison (other line, or other pair for this line)
- [AIG vs Marsh McLennan Agency Workers’ Compensation Insurance](https://spot.insure/compare/aig-vs-marsh-mclennan-agency/workers-compensation) — sibling comparison (other line, or other pair for this line)
- [AIG vs Alliance Risk Professional Liability (E&O) Insurance](https://spot.insure/compare/aig-vs-alliance-risk/professional-errors-omissions) — sibling comparison (other line, or other pair for this line)
- [AIG vs Aon Professional Liability (E&O) Insurance](https://spot.insure/compare/aig-vs-aon/professional-errors-omissions) — sibling comparison (other line, or other pair for this line)
- [AIG vs At-Bay Professional Liability (E&O) Insurance](https://spot.insure/compare/aig-vs-at-bay/professional-errors-omissions) — sibling comparison (other line, or other pair for this line)
- [AIG vs The Baldwin Group Professional Liability (E&O) Insurance](https://spot.insure/compare/aig-vs-baldwin/professional-errors-omissions) — sibling comparison (other line, or other pair for this line)
- [AIG vs Beazley Professional Liability (E&O) Insurance](https://spot.insure/compare/aig-vs-beazley/professional-errors-omissions) — sibling comparison (other line, or other pair for this line)
- [AIG vs Berkshire Hathaway Specialty Insurance Professional Liability (E&O) Insurance](https://spot.insure/compare/aig-vs-berkshire-hathaway-specialty-insurance/professional-errors-omissions) — sibling comparison (other line, or other pair for this line)

# AIG vs Marsh McLennan Agency: How Do They Compare for Professional Liability (E&O) Insurance?

AIG offers customizable entity E&O to service providers; Marsh McLennan Agency describes professional liability placements and an application process for its target clients.

## Research Scope and Use

Use this comparison to evaluate AIG and Marsh McLennan Agency for Professional Liability (E&O) Insurance against the same documented criteria. It identifies differences and questions to confirm; it does not select a winner for a particular business. Offering claims are what each provider publishes about this line unless marked otherwise. “Not found” describes the evidence reviewed, not proof that a feature is unavailable. Confirm the insurer, policy wording, limits, retentions, exclusions and cost in an actual quote.

## Summary

AIG offers customizable entity E&O to service providers; Marsh McLennan Agency describes professional liability placements and an application process for its target clients. [3](https://www.aig.com/home/risk-solutions/business/management-and-professional-liability/professional-liability "Professional Liability Insurance") [6](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA")

## 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](https://www.aig.com/investor-relations "Investor Relations") [2](https://www.aig.com/home/risk-solutions/business "Business")

[AIG profile](https://spot.insure/insurance-providers/aig)

## 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](https://www.marshmma.com/us/mma/about-us.html "Who We Are") [5](https://www.marshmma.com/us/solutions/small-business.html "Small Business Insurance Solutions")

[Marsh McLennan Agency profile](https://spot.insure/insurance-providers/marsh-mclennan-agency)

## What Is Professional Errors and Omissions (E&O) Insurance?

Professional liability can help pay defense costs and covered losses when a client says your advice or service caused financial harm. If customers rely on your work, list every service you provide and check the claims-made reporting and prior-work terms. [7](https://www.tdi.texas.gov/commercial/pl-faq.html "FAQ: Professional liability insurance") [8](https://www.iii.org/article/professional-liability-insurance "Professional liability insurance") [9](https://www.sba.gov/counseling/launch-your-business/#business-insurance "Get business insurance") [10](https://www.hiscox.com/documents/pl-sample-policy-wording.pdf "Professional Liability – US Direct Errors and Omissions Insurance")

## Key Differences in Professional Liability (E&O) Insurance

### Audience and Service Scope

AIG describes E&O for public and private service providers and can customize terms for their services. Marsh McLennan Agency documents a target audience for its professional-liability offering. Applicants should compare their actual work to that audience and ask each route to confirm coverage for all revenue-generating services, including subcontracted work. [3](https://www.aig.com/home/risk-solutions/business/management-and-professional-liability/professional-liability "Professional Liability Insurance") [6](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA")

### Policy Placement

AIG markets the specialty entity policy, while Marsh McLennan Agency describes arranging coverage through its application process. A brokerage application brings the risk to insurers, but the quote and policy name the entity carrying the risk. Ask MMA which carriers it approached and compare the resulting form with AIG’s proposed wording. [3](https://www.aig.com/home/risk-solutions/business/management-and-professional-liability/professional-liability "Professional Liability Insurance") [6](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA")

## What to Confirm in Professional Liability (E&O) Insurance Quotes

- Ask AIG for written confirmation of covered services, limits and issuing entity. [3](https://www.aig.com/home/risk-solutions/business/management-and-professional-liability/professional-liability "Professional Liability Insurance")
- Ask Marsh McLennan Agency which insurer quoted and what information its application needs to assess every professional service. [6](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA")

## Offering Details

| Criteria | AIG Specialty Professional Liability (E&O) | Marsh McLennan Agency professional errors omissions (official overview) |
| --- | --- | --- |
| Role in This Line | AIG markets customizable entity-based professional errors-and-omissions policies for public and private service providers. AIG is the marketing name; the page’s legal footer says products are written or provided by subsidiaries or affiliates, without naming the issuer for a buyer’s policy. [3](https://www.aig.com/home/risk-solutions/business/management-and-professional-liability/professional-liability "Professional Liability Insurance") (Evidence: Company-reported; scope: AIG’s U.S. Professional Liability page. The page describes the marketed product family, not the legal insurer on an individual quote or policy..) | Marsh McLennan Agency describes arranging professional errors omissions for the audience stated on the cited product page. [6](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA") (Evidence: Company-reported; scope: professional errors omissions 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 says its specialty professional-liability offering is for service providers and can be customized for a company’s professional services. Its examples include public and private service providers; this does not state that every profession or applicant qualifies. [3](https://www.aig.com/home/risk-solutions/business/management-and-professional-liability/professional-liability "Professional Liability Insurance") (Evidence: Company-reported; scope: Company-described target customer and customization statement. The reviewed page does not provide a complete class appetite or state availability list..) | Organizations seeking professional liability placement; source does not imply all professions share one policy. [6](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA") (Evidence: Company-reported; scope: professional errors omissions 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 | AIG describes coverage for claims alleging negligence in professional services rendered to others, including claims for third-party economic loss. This is a description of the product’s intended subject; covered claims, definitions, exclusions and conditions depend on the issued policy. [3](https://www.aig.com/home/risk-solutions/business/management-and-professional-liability/professional-liability "Professional Liability Insurance") (Evidence: Company-reported; scope: AIG’s marketing description of specialty professional E&O; no policy form or endorsement was reviewed..) | The cited product page describes E&O and named specialist professional lines, including architects and engineers and lawyers professional liability; the overview does not treat them as one form. Marketing description only; actual coverage, exclusions, conditions, limits, and availability depend on the issued policy and jurisdiction. [6](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA") (Evidence: Company-reported; scope: professional errors omissions 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 | The reviewed page does not state standard limits, retentions or deductibles for this offering. Confirm the amounts and policy conditions in the quote and issued form. [3](https://www.aig.com/home/risk-solutions/business/management-and-professional-liability/professional-liability "Professional Liability Insurance") (Evidence: Not publicly disclosed; scope: AIG’s U.S. Professional Liability page reviewed 2026-09-30; no buyer-specific quote or policy was reviewed..) | 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. [6](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA") (Evidence: Not publicly disclosed; scope: Only the cited marketing page was reviewed for published limit and retention information; no policy-form entitlement is inferred..) |
| Risk Services | AIG says it uses in-house claims professionals and third-party experts, collaborates with clients through the claims process, and uses claims data to help clients evaluate and mitigate loss. These are company-reported service descriptions, not a claim outcome guarantee. [3](https://www.aig.com/home/risk-solutions/business/management-and-professional-liability/professional-liability "Professional Liability Insurance") (Evidence: Company-reported; scope: General professional-liability claims services described by AIG. The page does not state account-specific service standards or identify the administrator for a particular policy..) | 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. [6](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA") (Evidence: Company-reported; scope: professional errors omissions 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

- [AIG vs Marsh McLennan Agency](https://spot.insure/compare/aig-vs-marsh-mclennan-agency): all coverage lines, business roles, service and claims.
- [What Is Professional Errors and Omissions (E&O) Insurance?](https://spot.insure/coverage/professional-errors-omissions): Professional liability can help pay covered defense costs and losses when a client says your advice or service caused financial harm; check services and reporting terms.
- [AIG vs Marsh McLennan Agency Builders Risk Insurance](https://spot.insure/compare/aig-vs-marsh-mclennan-agency/builders-risk)
- [AIG vs Marsh McLennan Agency Cargo and Transit Insurance](https://spot.insure/compare/aig-vs-marsh-mclennan-agency/cargo-transit)
- [AIG vs Marsh McLennan Agency Commercial Auto Insurance](https://spot.insure/compare/aig-vs-marsh-mclennan-agency/commercial-auto)
- [AIG vs Marsh McLennan Agency Commercial Property Insurance](https://spot.insure/compare/aig-vs-marsh-mclennan-agency/commercial-property)
- [AIG vs Marsh McLennan Agency Crime Insurance](https://spot.insure/compare/aig-vs-marsh-mclennan-agency/crime)
- [AIG vs Marsh McLennan Agency Cyber Insurance](https://spot.insure/compare/aig-vs-marsh-mclennan-agency/cyber)
- [AIG vs Marsh McLennan Agency D&O Insurance](https://spot.insure/compare/aig-vs-marsh-mclennan-agency/directors-officers)
- [AIG vs Marsh McLennan Agency Employment Practices Liability Insurance](https://spot.insure/compare/aig-vs-marsh-mclennan-agency/employment-practices)
- [AIG vs Marsh McLennan Agency Fiduciary Liability Insurance](https://spot.insure/compare/aig-vs-marsh-mclennan-agency/fiduciary)
- [AIG vs Marsh McLennan Agency General Liability Insurance](https://spot.insure/compare/aig-vs-marsh-mclennan-agency/general-liability)
- [AIG vs Marsh McLennan Agency Kidnap and Ransom Insurance](https://spot.insure/compare/aig-vs-marsh-mclennan-agency/kidnap-ransom)
- [AIG vs Marsh McLennan Agency Media Liability Insurance](https://spot.insure/compare/aig-vs-marsh-mclennan-agency/media)
- [AIG vs Marsh McLennan Agency Workers’ Compensation Insurance](https://spot.insure/compare/aig-vs-marsh-mclennan-agency/workers-compensation)
- [AIG vs Alliance Risk Professional Liability (E&O) Insurance](https://spot.insure/compare/aig-vs-alliance-risk/professional-errors-omissions)
- [AIG vs Aon Professional Liability (E&O) Insurance](https://spot.insure/compare/aig-vs-aon/professional-errors-omissions)
- [AIG vs At-Bay Professional Liability (E&O) Insurance](https://spot.insure/compare/aig-vs-at-bay/professional-errors-omissions)
- [AIG vs The Baldwin Group Professional Liability (E&O) Insurance](https://spot.insure/compare/aig-vs-baldwin/professional-errors-omissions)
- [AIG vs Beazley Professional Liability (E&O) Insurance](https://spot.insure/compare/aig-vs-beazley/professional-errors-omissions)
- [AIG vs Berkshire Hathaway Specialty Insurance Professional Liability (E&O) Insurance](https://spot.insure/compare/aig-vs-berkshire-hathaway-specialty-insurance/professional-errors-omissions)

## Sources

### AIG

1. [Investor Relations](https://www.aig.com/investor-relations). American International Group, Inc. (AIG); About AIG and legal footer; lines 244–246 and 327–331. Accessed 2026-09-28.
2. [Business](https://www.aig.com/home/risk-solutions/business). AIG US; Surplus Lines heading and paragraph, lines 357–359. Accessed 2026-09-28.
3. [Professional Liability Insurance](https://www.aig.com/home/risk-solutions/business/management-and-professional-liability/professional-liability). AIG US; ‘AIG Professional Liability Solutions,’ lines 327–334; claims expertise lines 273–279; broker contact lines 385–389; general policy-language caveat in legal footer lines 485–489.. Accessed 2026-09-30.

### Marsh McLennan Agency

4. [Who We Are](https://www.marshmma.com/us/mma/about-us.html). 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.
5. [Small Business Insurance Solutions](https://www.marshmma.com/us/solutions/small-business.html). 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.
6. [Executive and Professional Liability | MMA](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html). Marsh McLennan Agency; E&O, architects and engineers, and lawyers professional lines are named in the policy suite.. Accessed 2026-09-30.

### Professional Liability (E&O) Insurance Guide

7. [FAQ: Professional liability insurance](https://www.tdi.texas.gov/commercial/pl-faq.html). Texas Department of Insurance; What’s professional liability coverage?; What types of damages…; What’s general liability insurance?; Do I need professional liability… if I have general liability…?; Is professional liability insurance required?; Can a client require…?; What’s the difference between occurrence policies and claims-made policies. Accessed 2026-09-16.
8. [Professional liability insurance](https://www.iii.org/article/professional-liability-insurance). Insurance Information Institute; Opening paragraphs (professional services/advice and E&O name); Claims not covered by general liability; What types of businesses need professional liability insurance?; What’s covered… and what’s not (claims-made versus occurrence, defense and judgments, non-financial/intentional limits, BOP/in-home exclusion). Accessed 2026-09-16.
9. [Get business insurance](https://www.sba.gov/counseling/launch-your-business/#business-insurance). U.S. Small Business Administration; Six common types of business insurance table. Accessed 2026-09-16.
10. [Professional Liability – US Direct Errors and Omissions Insurance](https://www.hiscox.com/documents/pl-sample-policy-wording.pdf). Hiscox Inc. specimen; About this Policy / Coverage for Claims Made Against You; I.A Insuring Agreement; I.B Defense; I.C Settlement; II.A Notice of Claims; II.C Optional Extended Reporting Period; III.A, III.K, III.M, III.R, III.S Exclusions; IV.A–B Limits and Deductible; VI.O Professional Services; VI.U Wrongful Act. Accessed 2026-09-16.

Updated 2026-09-30. 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](https://spot.insure/editorial-policy). To suggest a correction, [contact Spot](https://spot.insure/contact) with the page URL and supporting source.

## AIG Reviews

Review Score: 4.4 / 10 from 2 rated sources, equally weighted.

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.

- NerdWallet: NerdWallet editorial rating 2.5 (stars). NerdWallet’s editorial business-insurance comparison; the AIG entry concerns commercial liability and property insurance, not a quantified policyholder-review sample. The page’s complaint statement and 2.5-star editorial rating are source-specific and must not be recast as a consumer average. Checked 2026-09-29. [Business Insurance: Get Quotes and Coverage Today](https://www.nerdwallet.com/business/insurance/best)
- Trustpilot: Trustpilot TrustScore 1.9 (out of 5); 252 reviews. Consumer reviews on aig.com’s Trustpilot profile span products and countries, including personal, travel, device/service and other experiences; they do not isolate U.S. commercial-P&C policyholders or a single issuing insurer. Checked 2026-09-29. [AIG Reviews](https://www.trustpilot.com/review/aig.com)
- ConsumerAffairs: ConsumerAffairs average 1.0 (out of 5); 274 reviews. ConsumerAffairs page titled AIG Life Insurance Reviews, updated 2026-08-14. The page mixes life and high-net-worth home references and reviewers may describe other AIG relationships; it is not a commercial-P&C-only population. Checked 2026-09-29. [AIG Life Insurance Reviews](https://www.consumeraffairs.com/insurance/aig_life.html)
- BBB: Complaints shown, prior 3 years 270. BBB’s American International Group, Inc. headquarters profile and corporate-owned locations (86 listed locations); complaint data is not limited to commercial insurance or a particular risk-bearing insurer. BBB says displayed complaint text may not represent every complaint. Period: Three years ending as displayed 2026-09-29. Checked 2026-09-29. [American International Group, Inc. (AIG) BBB Complaints](https://www.bbb.org/us/ny/new-york/profile/insurance-companies/american-international-group-inc-aig-0121-1515/complaints)

Reviewed 2026-09-29. [Read the sourced review](https://spot.insure/insurance-providers/aig/reviews).

## Marsh McLennan Agency Reviews

Review Score: 8.2 / 10 from 2 rated sources, equally weighted.

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.

- Trustpilot: TrustScore 3.2 (out of 5); 1 reviews. Trustpilot profile for marshmma.com, MMA's own domain. Unclaimed; MMA has not invited reviews. Period: checked 2026-09-29. Checked 2026-09-29. [marshmma.com Trustpilot profile](https://www.trustpilot.com/review/marshmma.com)
- Trustpilot: TrustScore (Marsh brand) 1.3 (out of 5); 115 reviews. Trustpilot page for marsh.com, the global Marsh brand (mostly individual and non-US customers). This is a different entity from MMA. Period: checked 2026-09-29. Checked 2026-09-29. [Marsh Reviews](https://www.trustpilot.com/review/www.marsh.com)
- BBB: BBB business grade A. BBB San Diego-area profile for Marsh & McLennan Agency LLC (accredited). MMA has separate BBB profiles per office; Dayton and Schaumburg both show A+. Checked 2026-09-29. [Marsh & McLennan Agency LLC (San Diego) BBB](https://www.bbb.org/us/ca/san-diego/profile/insurance-services-office/marsh-mclennan-agency-llc-1126-3000103)
- BBB: Complaints 4. Same San Diego-area profile; zero customer reviews. No client-count denominator. Period: closed in the last three years (checked 2026-09-29). Checked 2026-09-29. [Marsh & McLennan Agency LLC — BBB Complaints](https://www.bbb.org/us/ca/san-diego/profile/insurance-services-office/marsh-mclennan-agency-llc-1126-3000103/complaints); [Marsh & McLennan Agency LLC — BBB Reviews](https://www.bbb.org/us/ca/san-diego/profile/insurance-services-office/marsh-mclennan-agency-llc-1126-3000103/customer-reviews)

Reviewed 2026-09-29. [Read the sourced review](https://spot.insure/insurance-providers/marsh-mclennan-agency/reviews).

## Agent and Developer Resources

- [Markdown page](https://spot.insure/compare/aig-vs-marsh-mclennan-agency/professional-errors-omissions.md)
- [Developer resources](https://spot.insure/developers)
- [Public MCP server](https://spot.insure/mcp)
- [MCP server manifest](https://spot.insure/server.json)
- [OpenAPI description](https://spot.insure/openapi.json)
- [Public page index](https://spot.insure/llms.txt)