---
title: "Aon vs Marsh: Management Liability Insurance"
description: "Aon designs management-liability programs for professional partnerships; Marsh’s FINPRO team advises companies of all sizes across executive-risk products."
canonical: "https://spot.insure/compare/aon-vs-marsh/management-liability"
page-type: "line-comparison"
updated-at: "2026-09-30"
comparison-pair: "aon-vs-marsh"
provider-a: "aon"
provider-b: "marsh"
coverage-line: "management-liability"
---

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[Human-readable page](https://spot.insure/compare/aon-vs-marsh/management-liability)

## Agent Guide

**What this page is:** Focused comparison of Aon and Marsh for Management Liability 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 Management Liability Insurance questions about Aon 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:**
- Aon vs Marsh for Management Liability Insurance: how do they differ?
- Which is better for Management Liability Insurance, Aon or Marsh?
- What does Aon or Marsh publish about Management Liability Insurance (limits, eligibility, claims, add-ons)?
- What should I confirm in a quote for Management Liability Insurance from Aon or Marsh?

**Key facts:**
- Line: Management Liability Insurance. Providers: Aon 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:**
- [Aon vs Marsh](https://spot.insure/compare/aon-vs-marsh) — parent: all coverage lines for this pair
- [Management Liability Insurance guide](https://spot.insure/coverage/management-liability) — coverage explainer for this line
- [Aon profile](https://spot.insure/insurance-providers/aon) — provider profile (evidence)
- [Marsh profile](https://spot.insure/insurance-providers/marsh) — provider profile (evidence)
- [Aon vs Marsh Commercial Property Insurance](https://spot.insure/compare/aon-vs-marsh/commercial-property) — sibling comparison (other line, or other pair for this line)
- [Aon vs Marsh Crime Insurance](https://spot.insure/compare/aon-vs-marsh/crime) — sibling comparison (other line, or other pair for this line)
- [Aon vs Marsh Cyber Insurance](https://spot.insure/compare/aon-vs-marsh/cyber) — sibling comparison (other line, or other pair for this line)
- [Aon vs Marsh D&O Insurance](https://spot.insure/compare/aon-vs-marsh/directors-officers) — sibling comparison (other line, or other pair for this line)
- [Aon vs Marsh Employment Practices Liability Insurance](https://spot.insure/compare/aon-vs-marsh/employment-practices) — sibling comparison (other line, or other pair for this line)
- [Aon vs Marsh Fiduciary Liability Insurance](https://spot.insure/compare/aon-vs-marsh/fiduciary) — sibling comparison (other line, or other pair for this line)
- [Aon vs Marsh Kidnap and Ransom Insurance](https://spot.insure/compare/aon-vs-marsh/kidnap-ransom) — sibling comparison (other line, or other pair for this line)
- [Aon vs Marsh Professional Liability (E&O) Insurance](https://spot.insure/compare/aon-vs-marsh/professional-errors-omissions) — sibling comparison (other line, or other pair for this line)
- [Aon vs Marsh Workers’ Compensation Insurance](https://spot.insure/compare/aon-vs-marsh/workers-compensation) — sibling comparison (other line, or other pair for this line)
- [AIG vs Aon Management Liability Insurance](https://spot.insure/compare/aig-vs-aon/management-liability) — 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)
- [Alliance Risk vs Aon Management Liability Insurance](https://spot.insure/compare/alliance-risk-vs-aon/management-liability) — sibling comparison (other line, or other pair for this line)
- [Alliance Risk vs Marsh Management Liability Insurance](https://spot.insure/compare/alliance-risk-vs-marsh/management-liability) — sibling comparison (other line, or other pair for this line)
- [Aon vs The Baldwin Group Management Liability Insurance](https://spot.insure/compare/aon-vs-baldwin/management-liability) — sibling comparison (other line, or other pair for this line)
- [Aon vs Beazley Management Liability Insurance](https://spot.insure/compare/aon-vs-beazley/management-liability) — sibling comparison (other line, or other pair for this line)

# Aon vs Marsh: How Do They Compare for Management Liability Insurance?

Aon designs management-liability programs for professional partnerships; Marsh’s FINPRO team advises companies of all sizes across executive-risk products.

## Research Scope and Use

Use this comparison to evaluate Aon and Marsh for Management Liability 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

Aon identifies law, accounting and consulting firms as its professional-services audience. Marsh says its FINPRO team advises companies of all sizes and covers several executive-risk product areas. [3](https://www.aon.com/en/capabilities/risk-transfer/professional-services-practice "Professional Services Practice") [8](https://www.marsh.com/en-gb/services/financial-professional-liability/expertise/management-liability.html "Management Liability")

## What Is Aon?

Aon’s U.S. Commercial Risk terms describe brokerage for certain insurance programs, while its Middle Market page describes a dedicated practice for mid-sized organizations across North America. The public materials reviewed do not identify the licensed producer or insurer for a particular placement. Ask which entity will produce each line and which insurer will issue the policy; request jurisdiction details for the proposed placement and ask how compensation and claim notice work for your account. [1](https://www.aon.com/en/about/leadership-and-governance/brokerage-terms-of-service-for-commercial-risk-solutions-us "Commercial Risk Solutions U.S. Brokerage Terms of Service") [2](https://www.aon.com/en/capabilities/middle-market-clients "Middle Market Clients")

[Aon profile](https://spot.insure/insurance-providers/aon)

## 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 Management Liability Insurance?

Management liability packages can combine D&O and employment-practices coverage for leader and workplace claims, while benefit-plan protection may be a separate part. Shared limits can let a claim in one part reduce what is available for another, so compare the limits across the quote. [11](https://content.naic.org/glossary-insurance-terms "Glossary of Insurance Terms") [12](https://www.thehartford.com/management-liability-insurance "Management Liability Insurance") [13](https://www.chubb.com/us-en/business-insurance/forefront.html "The ForeFront Portfolio") [14](https://asset.trvstatic.com/download/assets/pdo-3001.pdf/d66bd58e63c911ee99d14294a32ecb95 "Private Company Directors and Officers Liability Coverage") [15](https://asset.trvstatic.com/download/assets/lia-3001.pdf/e79a6b6c63ca11eeaa7806e978c86228 "Liability Coverage Terms and Conditions") [16](https://asset.trvstatic.com/download/assets/pdo-1100w-ind.pdf/d44fa35c63c911eea5a70eda10c0a4d0 "Private Company Directors and Officers Liability Coverage Application")

## Key Differences in Management Liability Insurance

### Program Scope and Structure

Aon presents management liability as a program it designs for professional partnerships, with law, accounting and consulting firms named as the practice audience. Marsh frames management liability as an umbrella for related executive-risk products and says its FINPRO team advises companies of all sizes. Marsh lists D&O, employment practices, pension trustees, portfolio-company and public-securities offerings as areas of expertise. A buyer should compare this broader stated scope with Aon’s partnership focus and confirm whether the relevant line is offered in the account. [3](https://www.aon.com/en/capabilities/risk-transfer/professional-services-practice "Professional Services Practice") [8](https://www.marsh.com/en-gb/services/financial-professional-liability/expertise/management-liability.html "Management Liability")

### Access, Terms and Fit

Both firms describe advisor-led placement, and neither reviewed page names a specific insurer for a buyer’s policy. Marsh says a buyer engages a FINPRO specialist; Aon describes professional-services advisors using industry knowledge, data and tools. These service descriptions do not determine coverage terms. Ask each firm to identify the carrier, policy parts and limits, and establish whether a proposed management-liability program includes separate pension-trustee or securities-offering protection. [3](https://www.aon.com/en/capabilities/risk-transfer/professional-services-practice "Professional Services Practice") [8](https://www.marsh.com/en-gb/services/financial-professional-liability/expertise/management-liability.html "Management Liability")

## What to Confirm in Management Liability Insurance Quotes

- Ask Marsh which executive-risk products are actual policy parts versus specialist placement areas. [3](https://www.aon.com/en/capabilities/risk-transfer/professional-services-practice "Professional Services Practice") [8](https://www.marsh.com/en-gb/services/financial-professional-liability/expertise/management-liability.html "Management Liability")
- Ask Aon for the carrier and policy schedule, including any securities or trustee coverage. [3](https://www.aon.com/en/capabilities/risk-transfer/professional-services-practice "Professional Services Practice") [8](https://www.marsh.com/en-gb/services/financial-professional-liability/expertise/management-liability.html "Management Liability")

## Offering Details

| Criteria | Aon Management Liability brokerage and risk-advisory offering | Marsh Management Liability Insurance Brokerage |
| --- | --- | --- |
| Role in This Line | Aon presents Management Liability as a line its Professional Services Practice helps arrange or advise on for professional-service firms. Aon is describing a global brokerage and advisory service, not issuing the underlying policy. The producing legal entity and carrier for any particular placement are not named on this page. [3](https://www.aon.com/en/capabilities/risk-transfer/professional-services-practice "Professional Services Practice") (Evidence: Company-reported; scope: Aon’s global professional-services practice page. This establishes a marketed brokerage/advisory offering, not policy issuance or account-specific placement..) | Marsh's FINPRO (financial and professional) practice advises companies on management liability coverage, which Marsh's Financial & Professional Liability page frames as an umbrella term covering related executive-risk products rather than a single policy. [8](https://www.marsh.com/en-gb/services/financial-professional-liability/expertise/management-liability.html "Management Liability") (Evidence: Company-reported; scope: The management-liability page resolves to Marsh's en-gb (UK) site path, so its described team and product list (pension trustee liability, public offering of securities insurance) reflect a UK FINPRO practice rather than a confirmed US program..) |
| Issuing Insurer | The reviewed practice page does not name the insurer or producing legal entity for a specific placement. Ask for both on the quote and binder. [3](https://www.aon.com/en/capabilities/risk-transfer/professional-services-practice "Professional Services Practice") (Evidence: Not found in reviewed sources; scope: Aon’s global practice page as reviewed 2026-09-30; no state-specific placement schedule or buyer quote was reviewed. This does not establish that Aon cannot arrange a placement..) | The reviewed pages do not name a specific management liability insurer. [8](https://www.marsh.com/en-gb/services/financial-professional-liability/expertise/management-liability.html "Management Liability") [9](https://www.marsh.com/en/services/financial-professional-liability.html "Financial & Professional Liability") (Evidence: Not publicly disclosed; scope: UK FINPRO management liability page and Marsh's Financial & Professional Liability page as read on 2026-09-23..) |
| Who It’s For | Aon identifies law, accounting and consulting firms as the audience for its global Professional Services Practice. That audience scope does not establish eligibility for every firm or other business. [3](https://www.aon.com/en/capabilities/risk-transfer/professional-services-practice "Professional Services Practice") (Evidence: Company-reported; scope: Audience described for Aon’s global professional-services practice. It does not establish U.S. state availability or underwriting eligibility for a placement..) | Marsh says the FINPRO management liability team advises companies of all sizes on their management liability cover. [8](https://www.marsh.com/en-gb/services/financial-professional-liability/expertise/management-liability.html "Management Liability") (Evidence: Company-reported; scope: UK FINPRO management liability page..) |
| Coverage Features | Aon says it designs management-liability programs for professional partnerships to help protect partners and managers exposed to business-operation liabilities. It describes a practice program, not a named insurer’s policy form or a guaranteed coverage result. [3](https://www.aon.com/en/capabilities/risk-transfer/professional-services-practice "Professional Services Practice") (Evidence: Company-reported; scope: Aon’s marketing description of the brokerage/coverage area. The page is not the insurer’s policy form and does not establish an insured's entitlement to coverage..) | Marsh's UK management liability page lists directors and officers liability, employment practices liability, pension trustee liability, coverage for private equity owned portfolio companies, and public offering of securities insurance as its areas of expertise under this practice. [8](https://www.marsh.com/en-gb/services/financial-professional-liability/expertise/management-liability.html "Management Liability") (Evidence: Company-reported; scope: UK FINPRO management liability page; the mix of products may differ for a US placement..) |
| Limits and Retentions | The reviewed page does not state a buyer-specific limit, retention, deductible or other placement terms. Confirm these in the quote, bond or issued policy. [3](https://www.aon.com/en/capabilities/risk-transfer/professional-services-practice "Professional Services Practice") (Evidence: Not publicly disclosed; scope: Aon’s global practice page as reviewed 2026-09-30; no quote, bond form or issued policy was reviewed..) | Confirm in your quote. |
| Risk Services | Aon says its professional-services advisors use industry knowledge, insights, data and tools to support risk-management and human-capital decisions. This is a company-described advisory service, not a claim outcome or policy benefit. [3](https://www.aon.com/en/capabilities/risk-transfer/professional-services-practice "Professional Services Practice") (Evidence: Company-reported; scope: Company-reported advisory services on Aon’s global practice page; account-specific service scope is not stated..) | Confirm in your quote. |
| How to Apply | Confirm in your quote. | You engage a Marsh or MMA financial and professional liability specialist directly; the reviewed pages describe advisor-led placement rather than a self-serve quote. [9](https://www.marsh.com/en/services/financial-professional-liability.html "Financial & Professional Liability") [10](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Expert Executive and Professional Liability Insurance") (Evidence: Company-reported; scope: Financial & Professional Liability page and MMA executive and professional liability page..) |

## Full Comparison

- [Aon vs Marsh](https://spot.insure/compare/aon-vs-marsh): all coverage lines, business roles, service and claims.
- [What Is Management Liability Insurance?](https://spot.insure/coverage/management-liability): Management liability packages can combine D&O, employment-practices and fiduciary coverage, but each part can insure different people, claims and limits.
- [Aon vs Marsh Commercial Property Insurance](https://spot.insure/compare/aon-vs-marsh/commercial-property)
- [Aon vs Marsh Crime Insurance](https://spot.insure/compare/aon-vs-marsh/crime)
- [Aon vs Marsh Cyber Insurance](https://spot.insure/compare/aon-vs-marsh/cyber)
- [Aon vs Marsh D&O Insurance](https://spot.insure/compare/aon-vs-marsh/directors-officers)
- [Aon vs Marsh Employment Practices Liability Insurance](https://spot.insure/compare/aon-vs-marsh/employment-practices)
- [Aon vs Marsh Fiduciary Liability Insurance](https://spot.insure/compare/aon-vs-marsh/fiduciary)
- [Aon vs Marsh Kidnap and Ransom Insurance](https://spot.insure/compare/aon-vs-marsh/kidnap-ransom)
- [Aon vs Marsh Professional Liability (E&O) Insurance](https://spot.insure/compare/aon-vs-marsh/professional-errors-omissions)
- [Aon vs Marsh Workers’ Compensation Insurance](https://spot.insure/compare/aon-vs-marsh/workers-compensation)
- [AIG vs Aon Management Liability Insurance](https://spot.insure/compare/aig-vs-aon/management-liability)
- [AIG vs Marsh Management Liability Insurance](https://spot.insure/compare/aig-vs-marsh/management-liability)
- [Alliance Risk vs Aon Management Liability Insurance](https://spot.insure/compare/alliance-risk-vs-aon/management-liability)
- [Alliance Risk vs Marsh Management Liability Insurance](https://spot.insure/compare/alliance-risk-vs-marsh/management-liability)
- [Aon vs The Baldwin Group Management Liability Insurance](https://spot.insure/compare/aon-vs-baldwin/management-liability)
- [Aon vs Beazley Management Liability Insurance](https://spot.insure/compare/aon-vs-beazley/management-liability)

## Sources

### Aon

1. [Commercial Risk Solutions U.S. Brokerage Terms of Service](https://www.aon.com/en/about/leadership-and-governance/brokerage-terms-of-service-for-commercial-risk-solutions-us). Aon; Lines 120–127: certain-program broker-of-record scope, consultation, application assistance, client signature and bind instruction, and account administration; lines 140–147: variable and contingent compensation, potential placement incentive, and client request route; lines 206–213: no price guarantee and surplus-lines limitations; lines 229–231: client insurer-notice duty unless separately agreed.. Accessed 2026-09-29.
2. [Middle Market Clients](https://www.aon.com/en/capabilities/middle-market-clients). Aon; Lines 125–132: mid-sized organizations and middle-market framing; lines 165–173: dedicated practice and North America statement; lines 188–224: Commercial Risk capabilities. No numeric company-size cutoff or U.S.-only eligibility rule is stated on the reviewed page.. Accessed 2026-09-29.
3. [Professional Services Practice](https://www.aon.com/en/capabilities/risk-transfer/professional-services-practice). Aon; Named professional-services audiences and global advisory role, lines 125–128; line offerings and explanations lines 131–190; contact link lines 120–122. Global practice page; no U.S. state or account-specific placement schedule.. 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. [Management Liability](https://www.marsh.com/en-gb/services/financial-professional-liability/expertise/management-liability.html). Marsh; FINPRO management liability team description; Our areas of expertise: D&O, EPL, pension trustee liability, private equity owned portfolio companies, public offering of securities insurance. Accessed 2026-09-23.
9. [Financial & Professional Liability](https://www.marsh.com/en/services/financial-professional-liability.html). Marsh; Practice introduction for executive insurance advisory; FAQ distinguishing management liability, D&O and EPL. Accessed 2026-09-23.
10. [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.

### Management Liability Insurance Guide

11. [Glossary of Insurance Terms](https://content.naic.org/glossary-insurance-terms). National Association of Insurance Commissioners; Directors & Officers Liability; Employment Practices Liability Coverage; introductory scope note. Accessed 2026-09-16.
12. [Management Liability Insurance](https://www.thehartford.com/management-liability-insurance). The Hartford; What Is Management Liability Insurance?; Who Does Management Liability Insurance Protect. Accessed 2026-09-16.
13. [The ForeFront Portfolio](https://www.chubb.com/us-en/business-insurance/forefront.html). Chubb; Introduction; optional coverage parts; private, not-for-profit and healthcare portfolios. Accessed 2026-09-16.
14. [Private Company Directors and Officers Liability Coverage](https://asset.trvstatic.com/download/assets/pdo-3001.pdf/d66bd58e63c911ee99d14294a32ecb95). Travelers Casualty and Surety Company of America; I p.1; III pp.2–3; IV pp.4–6; VI pp.6–8. Accessed 2026-09-16.
15. [Liability Coverage Terms and Conditions](https://asset.trvstatic.com/download/assets/lia-3001.pdf/e79a6b6c63ca11eeaa7806e978c86228). Travelers Casualty and Surety Company of America; III.B p.3; III.C pp.4–5; III.D–G pp.5–6. Accessed 2026-09-16.
16. [Private Company Directors and Officers Liability Coverage Application](https://asset.trvstatic.com/download/assets/pdo-1100w-ind.pdf/d44fa35c63c911eea5a70eda10c0a4d0). Travelers Casualty and Surety Company of America; I–II pp.1–2; III–IV pp.2–3; V–VIII pp.3–4. 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.

## Aon Reviews

Review Score: 6.1 / 10 from 3 rated sources, equally weighted.

Public ratings for Aon are low: Trustpilot shows 1.2 out of 5 from 782 reviews, and BBB shows 1.6 from five. Aon is a global firm, so those pages mostly reflect other parts of the business, not large U.S. commercial accounts.

- J.D. Power: Aon study score 822 (out of 1000). Historical 2017 large-commercial-broker study; U.S. and Canada commercial insurance decision-makers at large organizations. J.D. Power reports 2,506 evaluations across the study, not Aon-specific responses; the Aon respondent count is not stated. Period: 2017 study; ranked 3rd among large commercial brokers; study-wide population 2,506, not Aon review count. Checked 2026-09-29. [Diversity of Offerings Becomes Key Differentiator for Large Commercial Insurers, JD Power Finds](https://www.jdpower.com/business/press-releases/jd-power-2017-large-commercial-insurance-study)
- Trustpilot: TrustScore 1.2 (out of 5); 782 reviews. Global www.aon.com profile merged with other Aon profiles; mixed experiences include pensions, travel, professional indemnity and Australian business quotation service. The two latter complaints are individual unverified allegations, not evidence of U.S. commercial-placement outcomes or insurer fault. Trustpilot says reviews may not be representative because the company has not recently invited reviews. Period: Displayed 2026-09-29; page separately showed 198 reviews in the last 12 months. Checked 2026-09-29. [Aon Reviews](https://www.trustpilot.com/review/www.aon.com)
- BBB: BBB business grade B− (BBB letter grade; stated reason: failure to respond to two filed complaints). BBB of Chicago & Northern Illinois profile for Aon plc; the business grade is BBB’s own measure, not customer stars. Checked 2026-09-29. [Aon plc | BBB Business Profile](https://www.bbb.org/us/il/chicago/profile/insurance-companies/aon-plc-0654-5291)
- BBB: BBB customer review average 1.6 (out of 5); 5 reviews. BBB of Chicago & Northern Illinois customer reviews for Aon plc; some reviews are about employee-benefit and medical-expense issues. Period: checked 2026-09-29. Checked 2026-09-29. [Aon plc | BBB Reviews](https://www.bbb.org/us/il/chicago/profile/insurance-companies/aon-plc-0654-5291/customer-reviews)

Reviewed 2026-09-29. [Read the sourced review](https://spot.insure/insurance-providers/aon/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/aon-vs-marsh/management-liability.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)