---
title: "AIG vs Marsh: Professional Liability (E&O) Insurance"
description: "AIG describes entity E&O for negligent professional services; Marsh brokers professional liability and adds risk-services support for clients arranging coverage."
canonical: "https://spot.insure/compare/aig-vs-marsh/professional-errors-omissions"
page-type: "line-comparison"
updated-at: "2026-09-30"
comparison-pair: "aig-vs-marsh"
provider-a: "aig"
provider-b: "marsh"
coverage-line: "professional-errors-omissions"
---

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

## Agent Guide

**What this page is:** Focused comparison of AIG and Marsh 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. 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 for Professional Liability (E&O) Insurance: how do they differ?
- Which is better for Professional Liability (E&O) Insurance, AIG or Marsh?
- What does AIG or Marsh 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?

**Key facts:**
- Line: Professional Liability (E&O) Insurance. Providers: AIG and Marsh.
- 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](https://spot.insure/compare/aig-vs-marsh) — 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 profile](https://spot.insure/insurance-providers/marsh) — provider profile (evidence)
- [AIG vs Marsh Builders Risk Insurance](https://spot.insure/compare/aig-vs-marsh/builders-risk) — sibling comparison (other line, or other pair for this line)
- [AIG vs Marsh Commercial Property Insurance](https://spot.insure/compare/aig-vs-marsh/commercial-property) — sibling comparison (other line, or other pair for this line)
- [AIG vs Marsh Crime Insurance](https://spot.insure/compare/aig-vs-marsh/crime) — sibling comparison (other line, or other pair for this line)
- [AIG vs Marsh Cyber Insurance](https://spot.insure/compare/aig-vs-marsh/cyber) — sibling comparison (other line, or other pair for this line)
- [AIG vs Marsh D&O Insurance](https://spot.insure/compare/aig-vs-marsh/directors-officers) — sibling comparison (other line, or other pair for this line)
- [AIG vs Marsh Employee Health Benefits](https://spot.insure/compare/aig-vs-marsh/employee-health-benefits) — sibling comparison (other line, or other pair for this line)
- [AIG vs Marsh Employment Practices Liability Insurance](https://spot.insure/compare/aig-vs-marsh/employment-practices) — sibling comparison (other line, or other pair for this line)
- [AIG vs Marsh Equipment Breakdown Insurance](https://spot.insure/compare/aig-vs-marsh/equipment-breakdown) — sibling comparison (other line, or other pair for this line)
- [AIG vs Marsh Fidelity Bonds](https://spot.insure/compare/aig-vs-marsh/fidelity-bonds) — sibling comparison (other line, or other pair for this line)
- [AIG vs Marsh Fiduciary Liability Insurance](https://spot.insure/compare/aig-vs-marsh/fiduciary) — sibling comparison (other line, or other pair for this line)
- [AIG vs Marsh Kidnap and Ransom Insurance](https://spot.insure/compare/aig-vs-marsh/kidnap-ransom) — sibling comparison (other line, or other pair for this line)
- [AIG vs Marsh Management Liability Insurance](https://spot.insure/compare/aig-vs-marsh/management-liability) — sibling comparison (other line, or other pair for this line)
- [AIG vs Marsh Media Liability Insurance](https://spot.insure/compare/aig-vs-marsh/media) — sibling comparison (other line, or other pair for this line)
- [AIG vs Marsh Workers’ Compensation Insurance](https://spot.insure/compare/aig-vs-marsh/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: How Do They Compare for Professional Liability (E&O) Insurance?

AIG describes entity E&O for negligent professional services; Marsh brokers professional liability and adds risk-services support for clients arranging coverage.

## Research Scope and Use

Use this comparison to evaluate AIG and Marsh 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 describes entity E&O for negligent professional services; Marsh brokers professional liability and adds risk-services support for clients arranging coverage. [3](https://www.aig.com/home/risk-solutions/business/management-and-professional-liability/professional-liability "Professional Liability Insurance") [8](https://www.marsh.com/en/services/financial-professional-liability/expertise/professional-liability.html "Professional liability")

## 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?

Marsh suits technology and larger businesses seeking specialist cyber placement or broad global risk advice; small firms wanting a quick standard quote should compare its MMA route or digital agencies. [4](https://www.marsh.com/en/home.html "Marsh | Leader in risk, strategy, people, and investments") [5](https://www.marsh.com/content/dam/marsh/Documents/PDF/US-en/us-client-compensation-guide.pdf "Compensation guide for US clients") [6](https://www.marsh.com/en/services/marsh-mclennan-agency.html "Marsh McLennan Agency (MMA)") [7](https://www.marsh.com/en/industries/technology.html "Technology | Insurance Broking & Risk Management")

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

## 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. [10](https://www.tdi.texas.gov/commercial/pl-faq.html "FAQ: Professional liability insurance") [11](https://www.iii.org/article/professional-liability-insurance "Professional liability insurance") [12](https://www.sba.gov/counseling/launch-your-business/#business-insurance "Get business insurance") [13](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

### Coverage Form and Brokerage Advice

AIG describes an entity policy intended to cover allegations of negligence in professional services, including third-party economic loss. Marsh acts as a broker and describes placing professional-liability coverage, so the insurer’s policy sets the terms. Buyers can compare AIG’s proposal with the carrier form Marsh negotiates, while asking Marsh what markets and wording options apply to their profession. [3](https://www.aig.com/home/risk-solutions/business/management-and-professional-liability/professional-liability "Professional Liability Insurance") [8](https://www.marsh.com/en/services/financial-professional-liability/expertise/professional-liability.html "Professional liability")

### Risk Services

AIG says its claims professionals collaborate with clients through claims and use claims information to evaluate loss. Marsh describes professional-liability risk services as part of its placement work. These distinct descriptions may matter before and after binding; ask Marsh which services are included for your account and AIG which claims staff handle a professional-services dispute. [3](https://www.aig.com/home/risk-solutions/business/management-and-professional-liability/professional-liability "Professional Liability Insurance") [8](https://www.marsh.com/en/services/financial-professional-liability/expertise/professional-liability.html "Professional liability")

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

- Ask AIG which insurer issues the quote and how its claims team handles a professional-services allegation. [3](https://www.aig.com/home/risk-solutions/business/management-and-professional-liability/professional-liability "Professional Liability Insurance")
- Ask Marsh which carriers and risk services apply to your placement and whether they carry a separate fee. [8](https://www.marsh.com/en/services/financial-professional-liability/expertise/professional-liability.html "Professional liability")

## Offering Details

| Criteria | AIG Specialty Professional Liability (E&O) | Marsh Professional Liability Insurance Brokerage |
| --- | --- | --- |
| 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's financial and professional liability practice places professional liability (errors and omissions) insurance; MMA also places E&O coverage within its executive and professional liability practice for middle-market clients. [8](https://www.marsh.com/en/services/financial-professional-liability/expertise/professional-liability.html "Professional liability") [9](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Expert Executive and Professional Liability Insurance") (Evidence: Company-reported; scope: Marsh professional liability page and MMA executive and professional liability page..) |
| Issuing Insurer | Confirm in your quote. | The reviewed pages do not name a specific professional liability insurer. [8](https://www.marsh.com/en/services/financial-professional-liability/expertise/professional-liability.html "Professional liability") [9](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Expert Executive and Professional Liability Insurance") (Evidence: Not publicly disclosed; scope: Marsh professional liability page and MMA executive and professional liability page as read on 2026-09-23..) |
| 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..) | Marsh names specialized industries its professional liability experts serve, including banking and broker/dealers, insurance companies and asset managers, merchant banking and venture capital, accountants, attorneys, architects and engineers, media and entertainment, technology, and healthcare and biotechnology. [8](https://www.marsh.com/en/services/financial-professional-liability/expertise/professional-liability.html "Professional liability") (Evidence: Company-reported; scope: Marsh professional liability page, What We Offer section..) |
| 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..) | Marsh says professional liability coverage can protect a company against liability and defense costs from a claim alleging an error, omission or negligence in performing professional services, and that many policies also cover privacy violations and computer security breaches. [8](https://www.marsh.com/en/services/financial-professional-liability/expertise/professional-liability.html "Professional liability") (Evidence: Company-reported; scope: Marsh professional liability page opening description; illustrative policy description, not a specific policy form..) |
| 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..) | Confirm in your quote. |
| 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..) | Marsh says it employs attorneys, economists and actuaries alongside coverage specialists to assess a client's professional liability exposure from multiple angles, given the complexity of these risks. [8](https://www.marsh.com/en/services/financial-professional-liability/expertise/professional-liability.html "Professional liability") (Evidence: Company-reported; scope: Marsh professional liability page..) |

## Full Comparison

- [AIG vs Marsh](https://spot.insure/compare/aig-vs-marsh): 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 Builders Risk Insurance](https://spot.insure/compare/aig-vs-marsh/builders-risk)
- [AIG vs Marsh Commercial Property Insurance](https://spot.insure/compare/aig-vs-marsh/commercial-property)
- [AIG vs Marsh Crime Insurance](https://spot.insure/compare/aig-vs-marsh/crime)
- [AIG vs Marsh Cyber Insurance](https://spot.insure/compare/aig-vs-marsh/cyber)
- [AIG vs Marsh D&O Insurance](https://spot.insure/compare/aig-vs-marsh/directors-officers)
- [AIG vs Marsh Employee Health Benefits](https://spot.insure/compare/aig-vs-marsh/employee-health-benefits)
- [AIG vs Marsh Employment Practices Liability Insurance](https://spot.insure/compare/aig-vs-marsh/employment-practices)
- [AIG vs Marsh Equipment Breakdown Insurance](https://spot.insure/compare/aig-vs-marsh/equipment-breakdown)
- [AIG vs Marsh Fidelity Bonds](https://spot.insure/compare/aig-vs-marsh/fidelity-bonds)
- [AIG vs Marsh Fiduciary Liability Insurance](https://spot.insure/compare/aig-vs-marsh/fiduciary)
- [AIG vs Marsh Kidnap and Ransom Insurance](https://spot.insure/compare/aig-vs-marsh/kidnap-ransom)
- [AIG vs Marsh Management Liability Insurance](https://spot.insure/compare/aig-vs-marsh/management-liability)
- [AIG vs Marsh Media Liability Insurance](https://spot.insure/compare/aig-vs-marsh/media)
- [AIG vs Marsh Workers’ Compensation Insurance](https://spot.insure/compare/aig-vs-marsh/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

4. [Marsh | Leader in risk, strategy, people, and investments](https://www.marsh.com/en/home.html). Marsh; Hero and capability tiles; FAQ: What does Marsh do?; industries served; Is Marsh the same as Marsh McLennan? January 2026 brand change. Accessed 2026-09-16.
5. [Compensation guide for US clients](https://www.marsh.com/content/dam/marsh/Documents/PDF/US-en/us-client-compensation-guide.pdf). Marsh; US broking segments; broker role; retail commissions, client fees, wholesale, insurer consulting, contingent and supplemental commissions; Marsh LLC and Marsh USA LLC; page 3: broker role and Marsh & McLennan Agency segment; page 7: copyright © 2024 Marsh LLC. Accessed 2026-09-16.
6. [Marsh McLennan Agency (MMA)](https://www.marsh.com/en/services/marsh-mclennan-agency.html). Marsh; Middle-market US organizations; wholly-owned subsidiary; business insurance, employee health and benefits, retirement, private client. Accessed 2026-09-16.
7. [Technology | Insurance Broking & Risk Management](https://www.marsh.com/en/industries/technology.html). Marsh; Opening Technology Practice description; practice links including data center insurance, fintech and Stratus; Talk to us. Accessed 2026-09-16.
8. [Professional liability](https://www.marsh.com/en/services/financial-professional-liability/expertise/professional-liability.html). Marsh; Opening description; What We Offer: specialized industries served (banking, insurance/asset managers, merchant banking/venture capital, accountants/attorneys/architects/engineers, media/communications/entertainment, technology, healthcare/biotechnology). Accessed 2026-09-23.
9. [Expert Executive and Professional Liability Insurance](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html). Marsh McLennan Agency; Our policies include D&O, E&O, EPL, commercial crime/fidelity, network security privacy risk/cyber, fiduciary, media liability, IP, architects and engineers, lawyers professional, and kidnap and ransom. Accessed 2026-09-23.

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

10. [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.
11. [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.
12. [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.
13. [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 Reviews

Review Score: 5.8 / 10 from 2 rated sources, equally weighted.

Marsh’s global Trustpilot profile has a poor 1.3/5 score. Treat it as a service warning to investigate with your proposed team; it does not isolate US commercial accounts.

- Trustpilot: TrustScore 1.3 (0–5 stars); 115 reviews. Global brand profile across products/countries, not U.S. commercial-only. Period: 35 reviews in prior 12 months. Checked 2026-09-25. [Marsh Reviews | Trustpilot](https://www.trustpilot.com/review/www.marsh.com)
- Buzdy (Google review aggregation): Google reviews shown by Buzdy 4.5 (0–5 stars); 4 reviews. Named Marsh (Hong Kong) Limited office in Quarry Bay, Hong Kong. Buzdy states ratings/counts are powered by Google. Foreign local office only; not the U.S. Marsh brokerage or a firmwide score. Period: Listing verification 2026-07-29; accessed 2026-09-25. Checked 2026-09-25. [Marsh (Hong Kong) Limited | Buzdy](https://buzdy.com/viewMerchant/marsh-hong-kong-limited-hong-kong)

Reviewed 2026-09-25. [Read the sourced review](https://spot.insure/insurance-providers/marsh/reviews).

## Agent and Developer Resources

- [Markdown page](https://spot.insure/compare/aig-vs-marsh/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)