---
title: "Markel Insurance vs Marsh McLennan Agency: Commercial Property Insurance"
description: "Markel names commercial, industrial and technical property placements, while Marsh McLennan Agency describes industry-tailored property placement and advisor-led access."
canonical: "https://spot.insure/compare/markel-vs-marsh-mclennan-agency/commercial-property"
page-type: "line-comparison"
updated-at: "2026-09-30"
comparison-pair: "markel-vs-marsh-mclennan-agency"
provider-a: "markel"
provider-b: "marsh-mclennan-agency"
coverage-line: "commercial-property"
---

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[Human-readable page](https://spot.insure/compare/markel-vs-marsh-mclennan-agency/commercial-property)

## Agent Guide

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

**Key facts:**
- Line: Commercial Property Insurance. Providers: Markel Insurance 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:**
- [Markel Insurance vs Marsh McLennan Agency](https://spot.insure/compare/markel-vs-marsh-mclennan-agency) — parent: all coverage lines for this pair
- [Commercial Property Insurance guide](https://spot.insure/coverage/commercial-property) — coverage explainer for this line
- [Markel Insurance profile](https://spot.insure/insurance-providers/markel) — provider profile (evidence)
- [Marsh McLennan Agency profile](https://spot.insure/insurance-providers/marsh-mclennan-agency) — provider profile (evidence)
- [Markel Insurance vs Marsh McLennan Agency Builders Risk Insurance](https://spot.insure/compare/markel-vs-marsh-mclennan-agency/builders-risk) — sibling comparison (other line, or other pair for this line)
- [Markel Insurance vs Marsh McLennan Agency Cargo and Transit Insurance](https://spot.insure/compare/markel-vs-marsh-mclennan-agency/cargo-transit) — sibling comparison (other line, or other pair for this line)
- [Markel Insurance vs Marsh McLennan Agency Crime Insurance](https://spot.insure/compare/markel-vs-marsh-mclennan-agency/crime) — sibling comparison (other line, or other pair for this line)
- [Markel Insurance vs Marsh McLennan Agency Cyber Insurance](https://spot.insure/compare/markel-vs-marsh-mclennan-agency/cyber) — sibling comparison (other line, or other pair for this line)
- [Markel Insurance vs Marsh McLennan Agency D&O Insurance](https://spot.insure/compare/markel-vs-marsh-mclennan-agency/directors-officers) — sibling comparison (other line, or other pair for this line)
- [Markel Insurance vs Marsh McLennan Agency Employment Practices Liability Insurance](https://spot.insure/compare/markel-vs-marsh-mclennan-agency/employment-practices) — sibling comparison (other line, or other pair for this line)
- [Markel Insurance vs Marsh McLennan Agency Fiduciary Liability Insurance](https://spot.insure/compare/markel-vs-marsh-mclennan-agency/fiduciary) — sibling comparison (other line, or other pair for this line)
- [Markel Insurance vs Marsh McLennan Agency Media Liability Insurance](https://spot.insure/compare/markel-vs-marsh-mclennan-agency/media) — sibling comparison (other line, or other pair for this line)
- [Markel Insurance vs Marsh McLennan Agency Professional Liability (E&O) Insurance](https://spot.insure/compare/markel-vs-marsh-mclennan-agency/professional-errors-omissions) — sibling comparison (other line, or other pair for this line)
- [Markel Insurance vs Marsh McLennan Agency Workers’ Compensation Insurance](https://spot.insure/compare/markel-vs-marsh-mclennan-agency/workers-compensation) — sibling comparison (other line, or other pair for this line)
- [AIG vs Markel Insurance Commercial Property Insurance](https://spot.insure/compare/aig-vs-markel/commercial-property) — 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)
- [Alliance Risk vs Markel Insurance Commercial Property Insurance](https://spot.insure/compare/alliance-risk-vs-markel/commercial-property) — sibling comparison (other line, or other pair for this line)
- [Alliance Risk vs Marsh McLennan Agency Commercial Property Insurance](https://spot.insure/compare/alliance-risk-vs-marsh-mclennan-agency/commercial-property) — sibling comparison (other line, or other pair for this line)
- [Aon vs Markel Insurance Commercial Property Insurance](https://spot.insure/compare/aon-vs-markel/commercial-property) — sibling comparison (other line, or other pair for this line)
- [Aon vs Marsh McLennan Agency Commercial Property Insurance](https://spot.insure/compare/aon-vs-marsh-mclennan-agency/commercial-property) — sibling comparison (other line, or other pair for this line)

# Markel Insurance vs Marsh McLennan Agency: How Do They Compare for Commercial Property Insurance?

Markel names commercial, industrial and technical property placements, while Marsh McLennan Agency describes industry-tailored property placement and advisor-led access.

## Research Scope and Use

Use this comparison to evaluate Markel Insurance and Marsh McLennan Agency for Commercial Property 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

Markel describes primary and excess property structures for named commercial occupancies; Marsh McLennan Agency describes property insurance tailored to an organization’s industry and stated risks and invites buyers to work with an adviser. [3](https://www.markel.com/us/commercial/property/commercial-and-risk-management-property "Commercial Property Insurance") [6](https://www.marshmma.com/us/solutions/property.html "Property Insurance | MMA")

## Markel Insurance: Specialty Business and Products

Markel Insurance is Markel Group's specialty and small-business insurance business, with offerings across packages, workers' compensation, cyber, professional and management liability, property, marine, and surety. Products use different insurers and distribution routes, so compare the issuer and terms shown on the specific quote. [1](https://www.markel.com/about-us "About us") [2](https://www.sec.gov/Archives/edgar/data/1096343/000109634326000020/mkl-20251231.htm "Markel Group Inc. 2025 Form 10-K")

[Markel Insurance profile](https://spot.insure/insurance-providers/markel)

## 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 Commercial Property Insurance?

Commercial property may fit your business if you own a building or rely on equipment and stock. Compare replacement-cost terms, deductibles and any coinsurance condition, and check lost-income protection separately. [7](https://www.insurance.ca.gov/01-consumers/105-type/95-guides/09-comm/commercialguide.cfm "Commercial Insurance Guide") [8](https://content.naic.org/cipr-topics/business-interruptionbusinessowners-policies-bop "Business Interruption Insurance/Businessowner’s Policies (BOP)") [9](https://www.tdi.texas.gov/pubs/consumer/cb021.html "Commercial property insurance guide")

## Key Differences in Commercial Property Insurance

### Occupancy and Program Structure

Markel names commercial, industrial and technical occupancies, with examples including municipalities, hospitality, commercial real estate, healthcare, light manufacturing, medical facilities and schools. It describes primary and excess structures. Marsh McLennan Agency (MMA) describes commercial property tailored to an organization’s industry and stated property risks, while its broader property practice lists hazard assessment, valuation and catastrophe modeling. Buyers should match their occupancy to Markel’s named examples and ask MMA how its industry analysis shapes the program. [3](https://www.markel.com/us/commercial/property/commercial-and-risk-management-property "Commercial Property Insurance") [6](https://www.marshmma.com/us/solutions/property.html "Property Insurance | MMA")

### Advisor Route and Risk Services

MMA invites organizations to work with an adviser or specialist to discuss placement and describes pre- and post-loss risk control, claims advocacy and alternative risk solutions. Markel invites customers or brokers to contact underwriting, with capacity determined by the proposed placement. If the buyer needs ongoing property-risk support, ask MMA which services are part of the engagement; ask Markel who handles risk engineering and claims once the policy is issued. [6](https://www.marshmma.com/us/solutions/property.html "Property Insurance | MMA") [3](https://www.markel.com/us/commercial/property/commercial-and-risk-management-property "Commercial Property Insurance")

### Limits and Issuer

Neither overview sets a universal limit or deductible, and MMA’s cited page does not name the insurer for a specific account. Request the named carrier, layer, scheduled values, catastrophe sublimits and deductibles from both proposals before making a decision. [3](https://www.markel.com/us/commercial/property/commercial-and-risk-management-property "Commercial Property Insurance") [6](https://www.marshmma.com/us/solutions/property.html "Property Insurance | MMA")

## What to Confirm in Commercial Property Insurance Quotes

- Ask MMA which insurer and policy forms it proposes and what valuation and claims services apply. [6](https://www.marshmma.com/us/solutions/property.html "Property Insurance | MMA")
- Ask Markel for occupancy eligibility, primary/excess layer, available limit and deductible. [3](https://www.markel.com/us/commercial/property/commercial-and-risk-management-property "Commercial Property Insurance")
- Compare property values, catastrophe terms, risk-control contacts and claim reporting requirements. [3](https://www.markel.com/us/commercial/property/commercial-and-risk-management-property "Commercial Property Insurance") [6](https://www.marshmma.com/us/solutions/property.html "Property Insurance | MMA")

## Offering Details

| Criteria | Markel commercial property (official overview) | Marsh McLennan Agency commercial property (official overview) |
| --- | --- | --- |
| Role in This Line | Markel describes offering commercial property for the audience stated on the cited product page. [3](https://www.markel.com/us/commercial/property/commercial-and-risk-management-property "Commercial Property Insurance") (Evidence: Company-reported; scope: commercial property marketed by markel; scope is limited to the cited official product overview and described audience. This is not a policy form or a universal eligibility statement..) | Marsh McLennan Agency describes arranging commercial property for the audience stated on the cited product page. [6](https://www.marshmma.com/us/solutions/property.html "Property Insurance | MMA") (Evidence: Company-reported; scope: commercial property 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 | Commercial, industrial, and technical occupancies, with examples including municipalities, hospitality, commercial real estate, healthcare, light manufacturing, medical facilities, and schools. [3](https://www.markel.com/us/commercial/property/commercial-and-risk-management-property "Commercial Property Insurance") (Evidence: Company-reported; scope: commercial property marketed by markel; scope is limited to the cited official product overview and described audience. This is not a policy form or a universal eligibility statement..) | Commercial property organizations; exact property classes and terms are set through placement. [6](https://www.marshmma.com/us/solutions/property.html "Property Insurance | MMA") (Evidence: Company-reported; scope: commercial property marketed by marsh-mclennan-agency; scope is limited to the cited official product overview and described audience. This is not a policy form or a universal eligibility statement..) |
| Coverage Features | The cited product page describes commercial property placements for named commercial, industrial, and technical occupancies, including primary and excess structures. Marketing description only; actual coverage, exclusions, conditions, limits, and availability depend on the issued policy and jurisdiction. [3](https://www.markel.com/us/commercial/property/commercial-and-risk-management-property "Commercial Property Insurance") (Evidence: Company-reported; scope: commercial property marketed by markel; scope is limited to the cited official product overview and described audience. This is not a policy form or a universal eligibility statement..) | The cited product page describes commercial property insurance tailored to an organization's industry and stated property risks. Marketing description only; actual coverage, exclusions, conditions, limits, and availability depend on the issued policy and jurisdiction. [6](https://www.marshmma.com/us/solutions/property.html "Property Insurance | MMA") (Evidence: Company-reported; scope: commercial property 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 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. [3](https://www.markel.com/us/commercial/property/commercial-and-risk-management-property "Commercial Property Insurance") (Evidence: Not publicly disclosed; scope: Only the cited marketing page was reviewed for published limit and retention information; no policy-form entitlement is inferred..) | 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/property.html "Property Insurance | 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..) |
| How to Apply | The page invites prospective customers or brokers to contact Markel or the named underwriting team. The page does not establish a quote, bind, or coverage-effective timeline. [3](https://www.markel.com/us/commercial/property/commercial-and-risk-management-property "Commercial Property Insurance") (Evidence: Company-reported; scope: commercial property marketed by markel; scope is limited to the cited official product overview and described audience. This is not a policy form or a universal eligibility statement..) | 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/property.html "Property Insurance | MMA") (Evidence: Company-reported; scope: commercial property 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

- [Markel Insurance vs Marsh McLennan Agency](https://spot.insure/compare/markel-vs-marsh-mclennan-agency): all coverage lines, business roles, service and claims.
- [What Is Commercial Property Insurance?](https://spot.insure/coverage/commercial-property): Commercial property insurance can protect buildings, equipment and inventory, while valuation, deductibles, exclusions and income protection affect your cost after a loss.
- [Markel Insurance vs Marsh McLennan Agency Builders Risk Insurance](https://spot.insure/compare/markel-vs-marsh-mclennan-agency/builders-risk)
- [Markel Insurance vs Marsh McLennan Agency Cargo and Transit Insurance](https://spot.insure/compare/markel-vs-marsh-mclennan-agency/cargo-transit)
- [Markel Insurance vs Marsh McLennan Agency Crime Insurance](https://spot.insure/compare/markel-vs-marsh-mclennan-agency/crime)
- [Markel Insurance vs Marsh McLennan Agency Cyber Insurance](https://spot.insure/compare/markel-vs-marsh-mclennan-agency/cyber)
- [Markel Insurance vs Marsh McLennan Agency D&O Insurance](https://spot.insure/compare/markel-vs-marsh-mclennan-agency/directors-officers)
- [Markel Insurance vs Marsh McLennan Agency Employment Practices Liability Insurance](https://spot.insure/compare/markel-vs-marsh-mclennan-agency/employment-practices)
- [Markel Insurance vs Marsh McLennan Agency Fiduciary Liability Insurance](https://spot.insure/compare/markel-vs-marsh-mclennan-agency/fiduciary)
- [Markel Insurance vs Marsh McLennan Agency Media Liability Insurance](https://spot.insure/compare/markel-vs-marsh-mclennan-agency/media)
- [Markel Insurance vs Marsh McLennan Agency Professional Liability (E&O) Insurance](https://spot.insure/compare/markel-vs-marsh-mclennan-agency/professional-errors-omissions)
- [Markel Insurance vs Marsh McLennan Agency Workers’ Compensation Insurance](https://spot.insure/compare/markel-vs-marsh-mclennan-agency/workers-compensation)
- [AIG vs Markel Insurance Commercial Property Insurance](https://spot.insure/compare/aig-vs-markel/commercial-property)
- [AIG vs Marsh McLennan Agency Commercial Property Insurance](https://spot.insure/compare/aig-vs-marsh-mclennan-agency/commercial-property)
- [Alliance Risk vs Markel Insurance Commercial Property Insurance](https://spot.insure/compare/alliance-risk-vs-markel/commercial-property)
- [Alliance Risk vs Marsh McLennan Agency Commercial Property Insurance](https://spot.insure/compare/alliance-risk-vs-marsh-mclennan-agency/commercial-property)
- [Aon vs Markel Insurance Commercial Property Insurance](https://spot.insure/compare/aon-vs-markel/commercial-property)
- [Aon vs Marsh McLennan Agency Commercial Property Insurance](https://spot.insure/compare/aon-vs-marsh-mclennan-agency/commercial-property)

## Sources

### Markel Insurance

1. [About us](https://www.markel.com/about-us). Markel; Markel at a glance; description of Markel Insurance within Markel Group Inc.. Accessed 2026-09-28.
2. [Markel Group Inc. 2025 Form 10-K](https://www.sec.gov/Archives/edgar/data/1096343/000109634326000020/mkl-20251231.htm). U.S. Securities and Exchange Commission; filed by Markel Group Inc.; Cover page; Part I, Item 1 Business—Markel Insurance, U.S. Wholesale and Specialty, Programs and Solutions; Part II, Item 7/8 for group and segment risks. Accessed 2026-09-28.
3. [Commercial Property Insurance](https://www.markel.com/us/commercial/property/commercial-and-risk-management-property). Markel; What we offer; occupancy examples; coverage options; E&S primary or excess placement; policy wording.. 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. [Property Insurance | MMA](https://www.marshmma.com/us/solutions/property.html). Marsh McLennan Agency; Commercial property insurance tailored to industry and unique risks; property page sections.. Accessed 2026-09-30.

### Commercial Property Insurance Guide

7. [Commercial Insurance Guide](https://www.insurance.ca.gov/01-consumers/105-type/95-guides/09-comm/commercialguide.cfm). California Department of Insurance; What Should I Expect from a Broker-Agent; Commercial Property: Coverage Sections, Limits of Insurance, and Coinsurance; Covered Causes of Loss; Valuation Types; Inland Marine. Accessed 2026-09-16.
8. [Business Interruption Insurance/Businessowner’s Policies (BOP)](https://content.naic.org/cipr-topics/business-interruptionbusinessowners-policies-bop). National Association of Insurance Commissioners; Background; Commercial Property and Business Interruption bullets. Accessed 2026-09-16.
9. [Commercial property insurance guide](https://www.tdi.texas.gov/pubs/consumer/cb021.html). Texas Department of Insurance; Introduction; Coverage options; Shopping for commercial property insurance; Saving money on your insurance. 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.

## Markel Insurance Reviews

Review Score: 7.5 / 10 from 2 rated sources, equally weighted.

There is little public customer feedback on Markel. Trustpilot shows 2.5 out of 5 from just 5 reviews, and BBB lists 12 complaints closed in the last three years.

- J.D. Power: Commercial Lines Insurers agent satisfaction score 726 (out of 1,000). 2022 commercial-lines independent-agent satisfaction study and 2025 small-commercial customer study; these use different populations and measures Period: 2022. Checked 2026-09-29. [2025 U.S. Small Commercial Insurance Study](https://www.jdpower.com/business/press-releases/2025-us-small-commercial-insurance-study); [2022 U.S. Independent Agent Satisfaction Study](https://www.jdpower.com/sites/default/files/file/2022-10/2022134%20U.S.%20Independent%20Agent.pdf)
- Trustpilot: TrustScore 2.5 (out of 5); 5 reviews. Trustpilot brand-level page for markel.com. It mixes products and is not mapped to one legal insurer. Checked 2026-09-29. [Markel Reviews](https://www.trustpilot.com/review/markel.com)
- BBB: BBB business grade A+. BBB business profile for Markel Insurance Company headquarters/corporate-owned locations; review and complaint submissions may include other products and affiliates Checked 2026-09-29. [Markel Insurance Company Business Profile](https://www.bbb.org/us/va/glen-allen/profile/insurance-companies/markel-insurance-company-0603-4017547); [Markel Insurance Company Complaints](https://www.bbb.org/us/va/glen-allen/profile/insurance-companies/markel-insurance-company-0603-4017547/complaints)
- BBB: Complaints 12; 12 reviews. BBB profile for Markel Insurance Company; complaints may include other Markel products and affiliates and BBB says not all submissions are displayed. Period: last 3 years, as displayed 2026-09-29. Checked 2026-09-29. [Markel Insurance Company Complaints](https://www.bbb.org/us/va/glen-allen/profile/insurance-companies/markel-insurance-company-0603-4017547/complaints)

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