---
title: "Aon vs Marsh: Builders Risk Insurance"
description: "Marsh’s builders-risk record identifies its middle-market subsidiary, Marsh McLennan Agency (MMA), as arranging coverage within MMA’s property practice; Aon describes accidental damage to project property or materials during construction."
canonical: "https://spot.insure/compare/aon-vs-marsh/builders-risk"
page-type: "line-comparison"
updated-at: "2026-10-01"
comparison-pair: "aon-vs-marsh"
provider-a: "aon"
provider-b: "marsh"
coverage-line: "builders-risk"
---

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/aon-vs-marsh/builders-risk)

## Agent Guide

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

**Key facts:**
- Line: Builders Risk 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 2026-10-01. Editorial policy: /editorial-policy.

**Related pages:**
- [Aon vs Marsh](https://spot.insure/compare/aon-vs-marsh) — parent: all coverage lines for this pair
- [Builders Risk Insurance guide](https://spot.insure/coverage/builders-risk) — 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 Management Liability Insurance](https://spot.insure/compare/aon-vs-marsh/management-liability) — 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 Surety Bonds](https://spot.insure/compare/aon-vs-marsh/surety-bonds) — 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 Builders Risk Insurance](https://spot.insure/compare/aig-vs-aon/builders-risk) — sibling comparison (other line, or other pair for this line)
- [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)
- [Alliance Risk vs Aon Builders Risk Insurance](https://spot.insure/compare/alliance-risk-vs-aon/builders-risk) — sibling comparison (other line, or other pair for this line)
- [Alliance Risk vs Marsh Builders Risk Insurance](https://spot.insure/compare/alliance-risk-vs-marsh/builders-risk) — sibling comparison (other line, or other pair for this line)
- [Aon vs The Baldwin Group Builders Risk Insurance](https://spot.insure/compare/aon-vs-baldwin/builders-risk) — sibling comparison (other line, or other pair for this line)
- [Aon vs Berkshire Hathaway Specialty Insurance Builders Risk Insurance](https://spot.insure/compare/aon-vs-berkshire-hathaway-specialty-insurance/builders-risk) — sibling comparison (other line, or other pair for this line)

# Aon vs Marsh: How Do They Compare for Builders Risk Insurance?

Marsh’s builders-risk record identifies its middle-market subsidiary, Marsh McLennan Agency (MMA), as arranging coverage within MMA’s property practice; Aon describes accidental damage to project property or materials during construction.

## How to Use the Aon vs Marsh Builders Risk Insurance Comparison

Use this comparison to evaluate Aon and Marsh for Builders Risk 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.

## Aon vs Marsh Builders Risk Insurance Summary

The builders-risk record associated with Marsh describes its middle-market subsidiary, Marsh McLennan Agency (MMA), as placing the line. MMA’s page describes additions, foundations, temporary structures, and a limited basis for materials owned by others; Aon describes accidental damage to project property or materials during construction and operations. [3](https://www.aon.com/en/capabilities/risk-transfer/construction-and-infrastructure-insurance-and-risk-management "Construction and Infrastructure Insurance and Risk Management") [8](https://www.marshmma.com/us/solutions/property.html "Property Insurance")

## 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 Builders Risk Insurance?

Builders risk protects the project you are building, including materials meant for it, against physical loss until construction ends. The gaps that cost owners money are materials in storage or transit, the existing building in a renovation, and coverage ending when you occupy early. [9](https://content.naic.org/glossary-insurance-terms "Glossary of Insurance Terms") [10](https://www.insurance.ca.gov/01-consumers/105-type/95-guides/09-comm/commercialguide.cfm "Commercial Insurance Guide") [11](https://assets.touchpointmarkets.com/e8/58/dec27c1b462c8227b4693fb8ac81/ih-00-70-05-17-builders-risk-coverage-form.pdf "Builders Risk Coverage Form") [12](https://go.usassure.com/rs/381-ISO-510/images/us-assure-builders-risk-application-tip-sheet.pdf "Builders Risk Application Tip Sheet")

## What Are the Key Differences Between Aon and Marsh Builders Risk Insurance?

### Property Scope

The builders-risk record associated with Marsh describes Marsh McLennan Agency (MMA) as Marsh’s middle-market subsidiary placing the line. MMA describes additions and alterations, foundations, temporary structures, and a limited basis for materials belonging to others. Aon’s claim describes accidental damage to project property or materials during construction and operations, without that itemized list. For subcontractor-owned stock or existing structures, ask how the proposal schedules those values. [8](https://www.marshmma.com/us/solutions/property.html "Property Insurance") [3](https://www.aon.com/en/capabilities/risk-transfer/construction-and-infrastructure-insurance-and-risk-management "Construction and Infrastructure Insurance and Risk Management")

### Valuation and Loss Support

MMA’s property practice describes hazard assessment, valuation, catastrophe modeling, claims advocacy, and pre- and post-loss risk control; the record says these services are not exclusive to builders risk. Aon describes project-risk advice to develop transfer or mitigation strategies. For this placement, ask which services are actually included and who handles valuation or insurer communication. [8](https://www.marshmma.com/us/solutions/property.html "Property Insurance") [3](https://www.aon.com/en/capabilities/risk-transfer/construction-and-infrastructure-insurance-and-risk-management "Construction and Infrastructure Insurance and Risk Management")

## What Should You Confirm in Aon and Marsh Builders Risk Insurance Quotes?

- How are foundations, temporary structures, existing work, and subcontractor-owned materials valued and covered? [3](https://www.aon.com/en/capabilities/risk-transfer/construction-and-infrastructure-insurance-and-risk-management "Construction and Infrastructure Insurance and Risk Management") [8](https://www.marshmma.com/us/solutions/property.html "Property Insurance")
- Who performs catastrophe modeling or valuation, and what claims-advocacy support accompanies the placement? [3](https://www.aon.com/en/capabilities/risk-transfer/construction-and-infrastructure-insurance-and-risk-management "Construction and Infrastructure Insurance and Risk Management") [8](https://www.marshmma.com/us/solutions/property.html "Property Insurance")

## Aon vs Marsh Builders Risk Insurance Compared

| Criteria | Aon Builders Risk brokerage and risk-advisory offering | Marsh McLennan Agency Builders' Risk Insurance |
| --- | --- | --- |
| Role in This Line | Aon says its global construction practice designs and places risk solutions and uses broking experience and a global network across construction insurance lines. For builders risk, this is evidence of Aon’s brokered market offering; the page does not identify the insurer for a buyer’s placement. [3](https://www.aon.com/en/capabilities/risk-transfer/construction-and-infrastructure-insurance-and-risk-management "Construction and Infrastructure Insurance and Risk Management") (Evidence: Company-reported; scope: Aon’s global construction and infrastructure practice page. This establishes a marketed brokerage/advisory offering, not policy issuance or account-specific placement..) | Marsh McLennan Agency (MMA), Marsh's middle-market subsidiary, places builders' risk insurance as part of its broader property insurance practice, not as a separately branded product. [8](https://www.marshmma.com/us/solutions/property.html "Property Insurance") (Evidence: Company-reported; scope: MMA property insurance page, Builders' Risk subsection..) |
| 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/construction-and-infrastructure-insurance-and-risk-management "Construction and Infrastructure Insurance and Risk Management") (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 page does not name a specific builders' risk insurer. [8](https://www.marshmma.com/us/solutions/property.html "Property Insurance") (Evidence: Not publicly disclosed; scope: MMA property insurance page as read on 2026-09-23..) |
| Who It’s For | Aon describes its global construction and infrastructure practice as serving contractors, owners, developers, engineers, architects, designers, financiers and investors, and says it works with organizations of varied sizes and complexity. [3](https://www.aon.com/en/capabilities/risk-transfer/construction-and-infrastructure-insurance-and-risk-management "Construction and Infrastructure Insurance and Risk Management") (Evidence: Company-reported; scope: Audience described for Aon’s global construction and infrastructure practice. It does not establish U.S. state availability or underwriting eligibility for a placement..) | Confirm in your quote. |
| Coverage Features | Aon lists Builders Risk under construction property and says its construction property offering can address accidental damage to project property or materials during construction and operations. That is a broker’s description of the line, not a grant of coverage for a buyer. [3](https://www.aon.com/en/capabilities/risk-transfer/construction-and-infrastructure-insurance-and-risk-management "Construction and Infrastructure Insurance and Risk Management") (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..) | MMA says builders' risk coverage addresses risks unique to a building under construction, including additions and alterations, foundations, temporary structures, and materials and supplies owned by the insured, and on a limited basis, materials and supplies belonging to others. [8](https://www.marshmma.com/us/solutions/property.html "Property Insurance") (Evidence: Company-reported; scope: MMA property insurance page; illustrative description, not a specific policy form..) |
| 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/construction-and-infrastructure-insurance-and-risk-management "Construction and Infrastructure Insurance and Risk Management") (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 describes project risk-advisory services to understand project-specific risks and develop risk-transfer, management or mitigation strategies. It also describes a global construction team and market access. These are company-reported brokerage and advisory services, not coverage benefits. [3](https://www.aon.com/en/capabilities/risk-transfer/construction-and-infrastructure-insurance-and-risk-management "Construction and Infrastructure Insurance and Risk Management") (Evidence: Company-reported; scope: Company-reported advisory services on Aon’s global practice page; account-specific service scope is not stated..) | MMA says its property practice offers hazard assessment and valuation services, loss and catastrophe modeling, claims advocacy, pre- and post-loss risk control, and program design expertise drawn from its global market experience. [8](https://www.marshmma.com/us/solutions/property.html "Property Insurance") (Evidence: Company-reported; scope: MMA property insurance page, Benefits of Property Insurance and Builders' Risk sections; these services are described for the property practice generally, not exclusively for builders' risk..) |
| How to Apply | Confirm in your quote. | You work with an MMA property specialist directly; the page names a National Accounts Property Practice Leader and describes advisor-led placement rather than an online quote. [8](https://www.marshmma.com/us/solutions/property.html "Property Insurance") (Evidence: Company-reported; scope: MMA property insurance page..) |

## Related Pages for Aon vs Marsh Builders Risk Insurance

- [Aon vs Marsh](https://spot.insure/compare/aon-vs-marsh): all coverage lines, business roles, service and claims.
- [What Is Builders Risk Insurance?](https://spot.insure/coverage/builders-risk): Builders risk insures a building and its materials against physical loss while it is under construction, but stored or in-transit materials, the existing structure in a renovation, and early occupancy can fall outside it.
- [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 Management Liability Insurance](https://spot.insure/compare/aon-vs-marsh/management-liability)
- [Aon vs Marsh Professional Liability (E&O) Insurance](https://spot.insure/compare/aon-vs-marsh/professional-errors-omissions)
- [Aon vs Marsh Surety Bonds](https://spot.insure/compare/aon-vs-marsh/surety-bonds)
- [Aon vs Marsh Workers’ Compensation Insurance](https://spot.insure/compare/aon-vs-marsh/workers-compensation)
- [AIG vs Aon Builders Risk Insurance](https://spot.insure/compare/aig-vs-aon/builders-risk)
- [AIG vs Marsh Builders Risk Insurance](https://spot.insure/compare/aig-vs-marsh/builders-risk)
- [Alliance Risk vs Aon Builders Risk Insurance](https://spot.insure/compare/alliance-risk-vs-aon/builders-risk)
- [Alliance Risk vs Marsh Builders Risk Insurance](https://spot.insure/compare/alliance-risk-vs-marsh/builders-risk)
- [Aon vs The Baldwin Group Builders Risk Insurance](https://spot.insure/compare/aon-vs-baldwin/builders-risk)
- [Aon vs Berkshire Hathaway Specialty Insurance Builders Risk Insurance](https://spot.insure/compare/aon-vs-berkshire-hathaway-specialty-insurance/builders-risk)

## Sources for Aon vs Marsh Builders Risk Insurance

### Sources About 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. [Construction and Infrastructure Insurance and Risk Management](https://www.aon.com/en/capabilities/risk-transfer/construction-and-infrastructure-insurance-and-risk-management). Aon; Construction client audience and global placement role, lines 123–126; offering descriptions lines 135–156; coverage-area taxonomy lines 167–195; contact link lines 120–122. Global practice page; no U.S. state or account-specific placement schedule.. Accessed 2026-09-30.

### Sources About 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. [Property Insurance](https://www.marshmma.com/us/solutions/property.html). Marsh McLennan Agency; Builders' Risk subsection under Property Insurance: risks unique to a building during construction, including additions and alterations, foundations, temporary structures, materials and supplies; Program design expertise; Benefits of Property Insurance. Accessed 2026-09-23.

### Sources for the Builders Risk Insurance Guide

9. [Glossary of Insurance Terms](https://content.naic.org/glossary-insurance-terms). National Association of Insurance Commissioners; Builders’ Risk Policies; Ocean Marine; Auto Physical Damage; All-Risk. Accessed 2026-09-16.
10. [Commercial Insurance Guide](https://www.insurance.ca.gov/01-consumers/105-type/95-guides/09-comm/commercialguide.cfm). California Department of Insurance; Commercial Property; Inland Marine; What Should I Expect from a Broker-Agent. Accessed 2026-09-16.
11. [Builders Risk Coverage Form](https://assets.touchpointmarkets.com/e8/58/dec27c1b462c8227b4693fb8ac81/ih-00-70-05-17-builders-risk-coverage-form.pdf). Insurance Services Office, Inc.; hosted by Touchpoint Markets; A.1–3 p.1; B.3.c p.11; C,D,E p.12. Accessed 2026-09-16.
12. [Builders Risk Application Tip Sheet](https://go.usassure.com/rs/381-ISO-510/images/us-assure-builders-risk-application-tip-sheet.pdf). US Assure; General policy application tips p.1; Remodeling tips p.2. Accessed 2026-09-16.

Updated 2026-10-01. 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 Review Scores for 2026

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 Review Scores for 2026

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).

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