---
title: "Markel Insurance vs Marsh McLennan Agency: Fiduciary Liability Insurance"
description: "Compare Markel’s plan-specific fiduciary claim description with Marsh McLennan Agency’s executive-liability placement overview."
canonical: "https://spot.insure/compare/markel-vs-marsh-mclennan-agency/fiduciary"
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: "fiduciary"
---

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

## Agent Guide

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

**Key facts:**
- Line: Fiduciary Liability 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
- [Fiduciary Liability Insurance guide](https://spot.insure/coverage/fiduciary) — 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 Commercial Property Insurance](https://spot.insure/compare/markel-vs-marsh-mclennan-agency/commercial-property) — 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 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 Fiduciary Liability Insurance](https://spot.insure/compare/aig-vs-markel/fiduciary) — sibling comparison (other line, or other pair for this line)
- [AIG vs Marsh McLennan Agency Fiduciary Liability Insurance](https://spot.insure/compare/aig-vs-marsh-mclennan-agency/fiduciary) — sibling comparison (other line, or other pair for this line)
- [Alliance Risk vs Markel Insurance Fiduciary Liability Insurance](https://spot.insure/compare/alliance-risk-vs-markel/fiduciary) — sibling comparison (other line, or other pair for this line)
- [Alliance Risk vs Marsh McLennan Agency Fiduciary Liability Insurance](https://spot.insure/compare/alliance-risk-vs-marsh-mclennan-agency/fiduciary) — sibling comparison (other line, or other pair for this line)
- [Aon vs Markel Insurance Fiduciary Liability Insurance](https://spot.insure/compare/aon-vs-markel/fiduciary) — sibling comparison (other line, or other pair for this line)
- [Aon vs Marsh McLennan Agency Fiduciary Liability Insurance](https://spot.insure/compare/aon-vs-marsh-mclennan-agency/fiduciary) — sibling comparison (other line, or other pair for this line)

# Markel Insurance vs Marsh McLennan Agency: How Do They Compare for Fiduciary Liability Insurance?

Compare Markel’s plan-specific fiduciary claim description with Marsh McLennan Agency’s executive-liability placement overview.

## Research Scope and Use

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

Markel names plan-mismanagement and administration claims with potential defense costs and damages. Marsh McLennan Agency lists fiduciary liability within its executive and professional liability suite but does not specify plan grants in the reviewed overview. [3](https://www.markel.com/us/commercial/professional-and-management-liability/management-liability/private-and-nonprofit "Private and Nonprofit Management Liability Insurance") [6](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | 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 Fiduciary Liability Insurance?

Fiduciary liability can protect your company and plan fiduciaries when participants claim mishandling of an employee benefit plan. If you sponsor a retirement or health plan, check who is insured and whether both administration errors and fiduciary-breach claims are addressed. [7](https://www.dol.gov/sites/dolgov/files/ebsa/employers-and-advisers/guidance/field-assistance-bulletins/erisa-fidelity-bonding-requirements.pdf "Field Assistance Bulletin No. 2008-04: Guidance Regarding ERISA Fidelity Bonding Requirements") [8](https://asset.trvstatic.com/download/assets/fri-3001.pdf/c75b6c8e63ca11ee93454641efede6a9 "Fiduciary Liability") [9](https://www.travelers.com/business-insurance/professional-liability-insurance/fiduciary-liability "Fiduciary Liability Insurance")

## Key Differences in Fiduciary Liability Insurance

### Specific Claim Description and Suite Listing

Markel describes fiduciary claims involving benefit-plan mismanagement, administrative errors or breach of fiduciary duty and says defense costs, settlements and judgments may be involved, subject to wording. Marsh McLennan Agency’s reviewed product page lists fiduciary liability within an executive and professional liability suite but does not state plan-specific coverage grants. A plan sponsor therefore has more published claim detail from Markel, while the MMA overview requires a direct discussion of the plan, insured roles and covered acts before the two options can be compared on terms. [3](https://www.markel.com/us/commercial/professional-and-management-liability/management-liability/private-and-nonprofit "Private and Nonprofit Management Liability Insurance") [6](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA")

### Placement Route and Buyer Information

Marsh McLennan Agency invites organizations to contact an adviser or specialist about placement. Markel likewise invites customers or brokers to contact the company or underwriting team, but identifies private companies, nonprofits and plan-managing individuals as intended audiences. Both records leave the quote, insurer and policy form to be established directly; the buyer should provide plan assets, participants and plan types to each channel and request named carrier terms. [6](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA") [3](https://www.markel.com/us/commercial/professional-and-management-liability/management-liability/private-and-nonprofit "Private and Nonprofit Management Liability Insurance")

## What to Confirm in Fiduciary Liability Insurance Quotes

- Which specific plan, fiduciary roles and administration errors receive a coverage grant from MMA? [6](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA") [3](https://www.markel.com/us/commercial/professional-and-management-liability/management-liability/private-and-nonprofit "Private and Nonprofit Management Liability Insurance")
- What insurer, limit, retention and defense-cost structure will each quote offer? [6](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA") [3](https://www.markel.com/us/commercial/professional-and-management-liability/management-liability/private-and-nonprofit "Private and Nonprofit Management Liability Insurance")
- Which plan data and application materials should you send to each adviser or underwriting team? [6](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA") [3](https://www.markel.com/us/commercial/professional-and-management-liability/management-liability/private-and-nonprofit "Private and Nonprofit Management Liability Insurance")

## Offering Details

| Criteria | Markel fiduciary liability | Marsh McLennan Agency fiduciary (official overview) |
| --- | --- | --- |
| Role in This Line | Markel lists fiduciary liability for private companies, nonprofits and individuals managing employee benefit plans. [3](https://www.markel.com/us/commercial/professional-and-management-liability/management-liability/private-and-nonprofit "Private and Nonprofit Management Liability Insurance") (Evidence: Company-reported; scope: U.S. private/nonprofit product page; not a fidelity bond..) | Marsh McLennan Agency describes arranging fiduciary for the audience stated on the cited product page. [6](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA") (Evidence: Company-reported; scope: fiduciary 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 | The page identifies private companies and not-for-profits and employee-plan fiduciaries as intended audiences; exact class and plan eligibility is not stated universally. [3](https://www.markel.com/us/commercial/professional-and-management-liability/management-liability/private-and-nonprofit "Private and Nonprofit Management Liability Insurance") (Evidence: Company-reported; scope: Published audience description only..) | Organizations seeking executive liability solutions; source does not define plan-specific eligibility. [6](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA") (Evidence: Company-reported; scope: fiduciary 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 | Markel describes claims involving benefit-plan mismanagement, administrative errors or breach of fiduciary duty, with potential defense costs, settlements and judgments subject to policy wording. [3](https://www.markel.com/us/commercial/professional-and-management-liability/management-liability/private-and-nonprofit "Private and Nonprofit Management Liability Insurance") (Evidence: Company-reported; scope: Illustrative page description; policy terms control..) | The cited product page describes fiduciary liability as a named product in the executive and professional liability suite; the overview does not state plan-specific grants. Marketing description only; actual coverage, exclusions, conditions, limits, and availability depend on the issued policy and jurisdiction. [6](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA") (Evidence: Company-reported; scope: fiduciary 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 | Confirm in your quote. | The cited overview does not set a universal limit or retention for this line. Ask for the proposed policy form, limits, retentions, exclusions, and conditions in the quote. [6](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA") (Evidence: Not publicly disclosed; scope: Only the cited marketing page was reviewed for published limit and retention information; no policy-form entitlement is inferred..) |
| How to Apply | Confirm in your quote. | The page invites organizations to contact a Marsh McLennan Agency adviser or specialist to discuss placement. The page does not establish a quote, bind, or coverage-effective timeline. [6](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA") (Evidence: Company-reported; scope: fiduciary 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 Fiduciary Liability Insurance?](https://spot.insure/coverage/fiduciary): Fiduciary liability can protect your company and plan fiduciaries from covered claims about benefit-plan management; check who is insured and whether administration errors are included.
- [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 Commercial Property Insurance](https://spot.insure/compare/markel-vs-marsh-mclennan-agency/commercial-property)
- [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 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 Fiduciary Liability Insurance](https://spot.insure/compare/aig-vs-markel/fiduciary)
- [AIG vs Marsh McLennan Agency Fiduciary Liability Insurance](https://spot.insure/compare/aig-vs-marsh-mclennan-agency/fiduciary)
- [Alliance Risk vs Markel Insurance Fiduciary Liability Insurance](https://spot.insure/compare/alliance-risk-vs-markel/fiduciary)
- [Alliance Risk vs Marsh McLennan Agency Fiduciary Liability Insurance](https://spot.insure/compare/alliance-risk-vs-marsh-mclennan-agency/fiduciary)
- [Aon vs Markel Insurance Fiduciary Liability Insurance](https://spot.insure/compare/aon-vs-markel/fiduciary)
- [Aon vs Marsh McLennan Agency Fiduciary Liability Insurance](https://spot.insure/compare/aon-vs-marsh-mclennan-agency/fiduciary)

## 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. [Private and Nonprofit Management Liability Insurance](https://www.markel.com/us/commercial/professional-and-management-liability/management-liability/private-and-nonprofit). Markel; What we offer; private/nonprofit segment; D&O, EPL, fiduciary and optional coverage sections.. Accessed 2026-09-29.

### Marsh McLennan Agency

4. [Who We Are](https://www.marshmma.com/us/mma/about-us.html). Marsh McLennan Agency; Lines 193-195: ‘a business of Marsh’ and company-listed service lines across US and Canada. This does not establish the legal entity for an account, corporate ownership chart, or insurer role.. Accessed 2026-09-29.
5. [Small Business Insurance Solutions](https://www.marshmma.com/us/solutions/small-business.html). Marsh McLennan Agency; Lines 205-207: small-business audience and call invitation; lines 224-249 list six coverage categories and short descriptions; line 264 is an embedded form whose function is not stated. No form submitted.. Accessed 2026-09-29.
6. [Executive and Professional Liability | MMA](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html). Marsh McLennan Agency; Named within the executive and professional liability product suite.. Accessed 2026-09-30.

### Fiduciary Liability Insurance Guide

7. [Field Assistance Bulletin No. 2008-04: Guidance Regarding ERISA Fidelity Bonding Requirements](https://www.dol.gov/sites/dolgov/files/ebsa/employers-and-advisers/guidance/field-assistance-bulletins/erisa-fidelity-bonding-requirements.pdf). U.S. Department of Labor, Employee Benefits Security Administration; Q2 pp.2–3. Accessed 2026-09-16.
8. [Fiduciary Liability](https://asset.trvstatic.com/download/assets/fri-3001.pdf/c75b6c8e63ca11ee93454641efede6a9). Travelers Casualty and Surety Company of America; II.D,J–L pp.2–3; II.A p.1; II.V p.5; Header p.1; II.M p.3; I p.1; III.A.6–8 pp.5–6; II.M.2 p.3; III.B.1 p.6. Accessed 2026-09-16.
9. [Fiduciary Liability Insurance](https://www.travelers.com/business-insurance/professional-liability-insurance/fiduciary-liability). Travelers; What Is Fiduciary Liability 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/fiduciary.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)