---
title: "Markel Insurance vs Marsh McLennan Agency: Cyber Insurance"
description: "Markel lists Cyber 360 options such as eCrime and interruption, while Marsh McLennan Agency describes cyber within its executive-risk practice and directs buyers to advisers."
canonical: "https://spot.insure/compare/markel-vs-marsh-mclennan-agency/cyber"
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: "cyber"
---

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

## Agent Guide

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

**Key facts:**
- Line: Cyber 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
- [Cyber Insurance guide](https://spot.insure/coverage/cyber) — 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 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 Cyber Insurance](https://spot.insure/compare/aig-vs-markel/cyber) — sibling comparison (other line, or other pair for this line)
- [AIG vs Marsh McLennan Agency Cyber Insurance](https://spot.insure/compare/aig-vs-marsh-mclennan-agency/cyber) — sibling comparison (other line, or other pair for this line)
- [Alliance Risk vs Markel Insurance Cyber Insurance](https://spot.insure/compare/alliance-risk-vs-markel/cyber) — sibling comparison (other line, or other pair for this line)
- [Alliance Risk vs Marsh McLennan Agency Cyber Insurance](https://spot.insure/compare/alliance-risk-vs-marsh-mclennan-agency/cyber) — sibling comparison (other line, or other pair for this line)
- [Amelia Risk vs Markel Insurance Cyber Insurance](https://spot.insure/compare/amelia-risk-vs-markel/cyber) — sibling comparison (other line, or other pair for this line)
- [Amelia Risk vs Marsh McLennan Agency Cyber Insurance](https://spot.insure/compare/amelia-risk-vs-marsh-mclennan-agency/cyber) — sibling comparison (other line, or other pair for this line)

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

Markel lists Cyber 360 options such as eCrime and interruption, while Marsh McLennan Agency describes cyber within its executive-risk practice and directs buyers to advisers.

## Research Scope and Use

Use this comparison to evaluate Markel Insurance and Marsh McLennan Agency for Cyber 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 lists Cyber 360 options including business interruption, eCrime, privacy/security liability, PCI, media, and technology E&O. Marsh McLennan Agency describes cyber liability and a cyber-risk management strategy as part of executive and professional risk. [3](https://www.markel.com/us/commercial/professional-and-management-liability/cyber "Cyber Insurance Coverage") [6](https://www.marshmma.com/us/solutions/cyber.html "Cyber | 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 Cyber Insurance?

Cyber insurance can help pay covered response costs and claims against your business after a cyber incident. If your business relies on data, software or outside providers, compare response limits, vendor outages and approval rules. [7](https://www.ftc.gov/business-guidance/small-businesses/cybersecurity/cyber-insurance "Cyber Insurance") [8](https://www.aig.com/content/dam/aig/america-canada/us/documents/business/cyber/cyberedge-wording-sample-specimen-form.pdf "CyberEdge specimen policy")

## Key Differences in Cyber Insurance

### Published Coverage Detail

Markel’s Cyber 360 page names options including business interruption, eCrime, privacy/security liability, PCI liability, media liability, and technology professional liability. Marsh McLennan Agency describes cyber liability and a cyber-risk management strategy within its executive and professional risk offering, but its overview does not itemize insured events or terms. Markel provides a more specific public menu; an MMA buyer should request the proposal and policy form to see which grants and conditions apply. [3](https://www.markel.com/us/commercial/professional-and-management-liability/cyber "Cyber Insurance Coverage") [6](https://www.marshmma.com/us/solutions/cyber.html "Cyber | MMA")

### Placement and Consultation

MMA invites organizations to contact an adviser or specialist to discuss placement and does not establish a quote or binding timeline. Markel also invites prospective customers or brokers to contact its underwriting team. The routes are both conversation-led in the reviewed records, but MMA places cyber within an executive-risk practice while Markel presents Cyber 360 as its cyber product; ask which team will handle the account and what application materials are needed. [6](https://www.marshmma.com/us/solutions/cyber.html "Cyber | MMA") [3](https://www.markel.com/us/commercial/professional-and-management-liability/cyber "Cyber Insurance Coverage")

### Limits and Policy Terms

Neither provider’s overview sets a universal cyber limit or retention. Markel cautions that its Cyber 360 terms depend on the issued policy, and MMA likewise directs buyers to the proposal for actual terms. Request limits, retentions, exclusions, and any sublimits before comparing coverage labels. [3](https://www.markel.com/us/commercial/professional-and-management-liability/cyber "Cyber Insurance Coverage") [6](https://www.marshmma.com/us/solutions/cyber.html "Cyber | MMA")

## What to Confirm in Cyber Insurance Quotes

- Ask Markel which Cyber 360 options are included and the limit and retention for each. [3](https://www.markel.com/us/commercial/professional-and-management-liability/cyber "Cyber Insurance Coverage")
- Ask MMA for the proposed cyber form, included insuring agreements, and adviser responsible for placement. [6](https://www.marshmma.com/us/solutions/cyber.html "Cyber | MMA")
- Compare the named insurer, exclusions, incident-response costs, and any cyber-risk services in the two proposals. [3](https://www.markel.com/us/commercial/professional-and-management-liability/cyber "Cyber Insurance Coverage") [6](https://www.marshmma.com/us/solutions/cyber.html "Cyber | MMA")

## Offering Details

| Criteria | Markel cyber (official overview) | Marsh McLennan Agency cyber (official overview) |
| --- | --- | --- |
| Role in This Line | Markel describes offering cyber for the audience stated on the cited product page. [3](https://www.markel.com/us/commercial/professional-and-management-liability/cyber "Cyber Insurance Coverage") (Evidence: Company-reported; scope: cyber 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 cyber for the audience stated on the cited product page. [6](https://www.marshmma.com/us/solutions/cyber.html "Cyber | MMA") (Evidence: Company-reported; scope: cyber 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 | Businesses with strong security controls; listed sectors include financial and professional services, retail, manufacturing, technology, and healthcare. [3](https://www.markel.com/us/commercial/professional-and-management-liability/cyber "Cyber Insurance Coverage") (Evidence: Company-reported; scope: cyber 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..) | Organizations managing cyber exposure; exact insurer, policy form, and eligibility are placement-specific. [6](https://www.marshmma.com/us/solutions/cyber.html "Cyber | MMA") (Evidence: Company-reported; scope: cyber 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 Cyber 360 options including business interruption, dependent business interruption, eCrime, privacy/security liability, PCI DSS liability, media liability, and technology professional liability. Marketing description only; actual coverage, exclusions, conditions, limits, and availability depend on the issued policy and jurisdiction. [3](https://www.markel.com/us/commercial/professional-and-management-liability/cyber "Cyber Insurance Coverage") (Evidence: Company-reported; scope: cyber 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 cyber liability and a cyber-risk management strategy as part of the executive and professional risk offering. Marketing description only; actual coverage, exclusions, conditions, limits, and availability depend on the issued policy and jurisdiction. [6](https://www.marshmma.com/us/solutions/cyber.html "Cyber | MMA") (Evidence: Company-reported; scope: cyber 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/professional-and-management-liability/cyber "Cyber Insurance Coverage") (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/cyber.html "Cyber | 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/professional-and-management-liability/cyber "Cyber Insurance Coverage") (Evidence: Company-reported; scope: cyber 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/cyber.html "Cyber | MMA") (Evidence: Company-reported; scope: cyber 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 Cyber Insurance?](https://spot.insure/coverage/cyber): Cyber insurance can help pay covered breach response, data recovery, interruption and liability costs; vendor incidents and funds-transfer fraud need separate checks.
- [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 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 Cyber Insurance](https://spot.insure/compare/aig-vs-markel/cyber)
- [AIG vs Marsh McLennan Agency Cyber Insurance](https://spot.insure/compare/aig-vs-marsh-mclennan-agency/cyber)
- [Alliance Risk vs Markel Insurance Cyber Insurance](https://spot.insure/compare/alliance-risk-vs-markel/cyber)
- [Alliance Risk vs Marsh McLennan Agency Cyber Insurance](https://spot.insure/compare/alliance-risk-vs-marsh-mclennan-agency/cyber)
- [Amelia Risk vs Markel Insurance Cyber Insurance](https://spot.insure/compare/amelia-risk-vs-markel/cyber)
- [Amelia Risk vs Marsh McLennan Agency Cyber Insurance](https://spot.insure/compare/amelia-risk-vs-marsh-mclennan-agency/cyber)

## 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. [Cyber Insurance Coverage](https://www.markel.com/us/commercial/professional-and-management-liability/cyber). Markel; Markel Cyber 360; coverages available; business disruption; fraud; privacy/security liability; technology professional liability.. 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. [Cyber | MMA](https://www.marshmma.com/us/solutions/cyber.html). Marsh McLennan Agency; Cyber solution overview and cyber-risk services.. Accessed 2026-09-30.

### Cyber Insurance Guide

7. [Cyber Insurance](https://www.ftc.gov/business-guidance/small-businesses/cybersecurity/cyber-insurance). Federal Trade Commission; Opening; First-Party and Third-Party Coverage; First-Party Coverage; Third-Party Coverage; What Should Your Cyber Insurance Policy Cover. Accessed 2026-09-16.
8. [CyberEdge specimen policy](https://www.aig.com/content/dam/aig/america-canada/us/documents/business/cyber/cyberedge-wording-sample-specimen-form.pdf). AIG; General Terms §§4–6, PDF pp.3–6; Security and Privacy §1 p.11, §2(l)/(p) p.14, §3 pp.15–18, exclusions p.18; Event Management §1 and §2(h), PDF pp.19–20. 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/cyber.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)