---
title: "CNA vs Marsh McLennan Agency: Cyber Insurance"
description: "MMA describes cyber liability and a cyber-risk strategy in its executive-risk practice; CNA specifies Epack 3 and EPS Plus product contexts."
canonical: "https://spot.insure/compare/cna-vs-marsh-mclennan-agency/cyber"
page-type: "line-comparison"
updated-at: "2026-10-01"
comparison-pair: "cna-vs-marsh-mclennan-agency"
provider-a: "cna"
provider-b: "marsh-mclennan-agency"
coverage-line: "cyber"
---

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/cna-vs-marsh-mclennan-agency/cyber)

## Agent Guide

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

**Key facts:**
- Line: Cyber Insurance. Providers: CNA 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 2026-10-01. Editorial policy: /editorial-policy.

**Related pages:**
- [CNA vs Marsh McLennan Agency](https://spot.insure/compare/cna-vs-marsh-mclennan-agency) — parent: all coverage lines for this pair
- [Cyber Insurance guide](https://spot.insure/coverage/cyber) — coverage explainer for this line
- [CNA profile](https://spot.insure/insurance-providers/cna) — provider profile (evidence)
- [Marsh McLennan Agency profile](https://spot.insure/insurance-providers/marsh-mclennan-agency) — provider profile (evidence)
- [CNA vs Marsh McLennan Agency Builders Risk Insurance](https://spot.insure/compare/cna-vs-marsh-mclennan-agency/builders-risk) — sibling comparison (other line, or other pair for this line)
- [CNA vs Marsh McLennan Agency Cargo and Transit Insurance](https://spot.insure/compare/cna-vs-marsh-mclennan-agency/cargo-transit) — sibling comparison (other line, or other pair for this line)
- [CNA vs Marsh McLennan Agency Commercial Auto Insurance](https://spot.insure/compare/cna-vs-marsh-mclennan-agency/commercial-auto) — sibling comparison (other line, or other pair for this line)
- [CNA vs Marsh McLennan Agency Commercial Property Insurance](https://spot.insure/compare/cna-vs-marsh-mclennan-agency/commercial-property) — sibling comparison (other line, or other pair for this line)
- [CNA vs Marsh McLennan Agency Crime Insurance](https://spot.insure/compare/cna-vs-marsh-mclennan-agency/crime) — sibling comparison (other line, or other pair for this line)
- [CNA vs Marsh McLennan Agency D&O Insurance](https://spot.insure/compare/cna-vs-marsh-mclennan-agency/directors-officers) — sibling comparison (other line, or other pair for this line)
- [CNA vs Marsh McLennan Agency Employment Practices Liability Insurance](https://spot.insure/compare/cna-vs-marsh-mclennan-agency/employment-practices) — sibling comparison (other line, or other pair for this line)
- [CNA vs Marsh McLennan Agency Fiduciary Liability Insurance](https://spot.insure/compare/cna-vs-marsh-mclennan-agency/fiduciary) — sibling comparison (other line, or other pair for this line)
- [CNA vs Marsh McLennan Agency General Liability Insurance](https://spot.insure/compare/cna-vs-marsh-mclennan-agency/general-liability) — sibling comparison (other line, or other pair for this line)
- [CNA vs Marsh McLennan Agency Kidnap and Ransom Insurance](https://spot.insure/compare/cna-vs-marsh-mclennan-agency/kidnap-ransom) — sibling comparison (other line, or other pair for this line)
- [CNA vs Marsh McLennan Agency Media Liability Insurance](https://spot.insure/compare/cna-vs-marsh-mclennan-agency/media) — sibling comparison (other line, or other pair for this line)
- [CNA vs Marsh McLennan Agency Professional Liability (E&O) Insurance](https://spot.insure/compare/cna-vs-marsh-mclennan-agency/professional-errors-omissions) — sibling comparison (other line, or other pair for this line)
- [CNA vs Marsh McLennan Agency Surety Bonds](https://spot.insure/compare/cna-vs-marsh-mclennan-agency/surety-bonds) — sibling comparison (other line, or other pair for this line)
- [CNA vs Marsh McLennan Agency Workers’ Compensation Insurance](https://spot.insure/compare/cna-vs-marsh-mclennan-agency/workers-compensation) — sibling comparison (other line, or other pair for this line)
- [AIG vs CNA Cyber Insurance](https://spot.insure/compare/aig-vs-cna/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 CNA Cyber Insurance](https://spot.insure/compare/alliance-risk-vs-cna/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 CNA Cyber Insurance](https://spot.insure/compare/amelia-risk-vs-cna/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)

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

MMA describes cyber liability and a cyber-risk strategy in its executive-risk practice; CNA specifies Epack 3 and EPS Plus product contexts.

## How to Use the CNA vs Marsh McLennan Agency Cyber Insurance Comparison

Use this comparison to evaluate CNA 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.

## CNA vs Marsh McLennan Agency Cyber Insurance Summary

MMA’s overview identifies cyber liability and a cyber-risk management strategy but leaves terms placement-specific; CNA names Epack 3 and EPS Plus product structures. [4](https://www.cna.com/products/cyber "Cyber Insurance - Cyber Risk Solutions | CNA Insurance") [7](https://www.marshmma.com/us/solutions/cyber.html "Cyber | MMA")

## CNA Small Business Insurance: Products, Agents and Service

CNA directs small-business buyers to independent agents and describes CNA Connect as a businessowners policy for more than 600 small-business classes. Issuer and availability vary by policy and state, so confirm both in a quote. [1](https://www.cna.com/solutions/small-business "Insurance for Small Businesses") [2](https://www.cna.com/products/cna-connect "CNA Connect Small Businessowners Policy (BOP) | CNA Insurance") [3](https://www.cna.com/cnadisclaimer/generaldisclaimer "General Disclaimer")

[CNA profile](https://spot.insure/insurance-providers/cna)

## 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. [5](https://www.marshmma.com/us/mma/about-us.html "Who We Are") [6](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. [8](https://www.ftc.gov/business-guidance/small-businesses/cybersecurity/cyber-insurance "Cyber Insurance") [9](https://www.aig.com/content/dam/aig/america-canada/us/documents/business/cyber/cyberedge-wording-sample-specimen-form.pdf "CyberEdge specimen policy")

## What Are the Key Differences Between CNA and Marsh McLennan Agency Cyber Insurance?

### Specific Product Structure Versus Practice Overview

MMA describes cyber liability and a cyber-risk management strategy in its executive and professional risk offering; CNA describes admitted modular Epack 3 and EPS Plus for professional-services firms. The pages present a brokerage strategy alongside named product structures. Ask MMA for the proposed insurer, form and services and CNA for the selected product schedule before comparing coverage. [7](https://www.marshmma.com/us/solutions/cyber.html "Cyber | MMA") [4](https://www.cna.com/products/cyber "Cyber Insurance - Cyber Risk Solutions | CNA Insurance")

### Services and Placement Questions

MMA’s page invites buyers to contact an adviser; CNA’s cited page names CyberAssist tools and incident-response vendors. Compare MMA’s advisory and claims-support engagement with the services CNA lists for policyholders, then ask which resources and response terms apply to the quoted placement. [7](https://www.marshmma.com/us/solutions/cyber.html "Cyber | MMA") [4](https://www.cna.com/products/cyber "Cyber Insurance - Cyber Risk Solutions | CNA Insurance")

## What Should You Confirm in CNA and Marsh McLennan Agency Cyber Insurance Quotes?

- Ask MMA for the proposed insurer, form, coverage schedule and any named risk services; ask CNA which Epack 3 or EPS Plus structure is quoted. [7](https://www.marshmma.com/us/solutions/cyber.html "Cyber | MMA") [4](https://www.cna.com/products/cyber "Cyber Insurance - Cyber Risk Solutions | CNA Insurance")
- Compare first-party response, third-party liability, limit structure and incident support using the actual policy documents. [7](https://www.marshmma.com/us/solutions/cyber.html "Cyber | MMA") [4](https://www.cna.com/products/cyber "Cyber Insurance - Cyber Risk Solutions | CNA Insurance")

## CNA vs Marsh McLennan Agency Cyber Insurance Compared

| Criteria | CNA Cyber Insurance | Marsh McLennan Agency cyber (official overview) |
| --- | --- | --- |
| Role in This Line | Confirm in your quote. | Marsh McLennan Agency describes arranging cyber for the audience stated on the cited product page. [7](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 | CNA offers EPS Plus for professional-services firms and Epack 3, an admitted modular policy designed for small and midsize businesses that combines cyber, media, technology and professional liability. [4](https://www.cna.com/products/cyber "Cyber Insurance - Cyber Risk Solutions | CNA Insurance") (Evidence: Company-reported; scope: Entity: CNA brand; issuing CNA subsidiary may vary by product/state Product: United States commercial insurance Jurisdiction: United States Research source scope: US specialty commercial liability Claim limitation: Company-reported; policy wording, underwriting and jurisdiction-specific availability control..) | Organizations managing cyber exposure; exact insurer, policy form, and eligibility are placement-specific. [7](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 | Confirm in your quote. | 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. [7](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 | 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. [7](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..) |
| Risk Services | CNA CyberAssist gives policyholders cybersecurity specialists, tools and services to identify vulnerabilities, strengthen defenses and respond. [4](https://www.cna.com/products/cyber "Cyber Insurance - Cyber Risk Solutions | CNA Insurance") (Evidence: Company-reported; scope: Entity: CNA brand; issuing CNA subsidiary may vary by product/state Product: United States commercial insurance Jurisdiction: United States Research source scope: US specialty commercial liability Claim limitation: Company-reported; policy wording, underwriting and jurisdiction-specific availability control..)<br><br>CNA identifies breach coaches, forensic firms and notification/call-center vendors for incident response. [4](https://www.cna.com/products/cyber "Cyber Insurance - Cyber Risk Solutions | CNA Insurance") (Evidence: Company-reported; scope: Entity: CNA brand; issuing CNA subsidiary may vary by product/state Product: United States commercial insurance Jurisdiction: United States Research source scope: US specialty commercial liability Claim limitation: Company-reported; policy wording, underwriting and jurisdiction-specific availability control..) | Confirm in your quote. |
| 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. [7](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..) |

## Related Pages for CNA vs Marsh McLennan Agency Cyber Insurance

- [CNA vs Marsh McLennan Agency](https://spot.insure/compare/cna-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.
- [CNA vs Marsh McLennan Agency Builders Risk Insurance](https://spot.insure/compare/cna-vs-marsh-mclennan-agency/builders-risk)
- [CNA vs Marsh McLennan Agency Cargo and Transit Insurance](https://spot.insure/compare/cna-vs-marsh-mclennan-agency/cargo-transit)
- [CNA vs Marsh McLennan Agency Commercial Auto Insurance](https://spot.insure/compare/cna-vs-marsh-mclennan-agency/commercial-auto)
- [CNA vs Marsh McLennan Agency Commercial Property Insurance](https://spot.insure/compare/cna-vs-marsh-mclennan-agency/commercial-property)
- [CNA vs Marsh McLennan Agency Crime Insurance](https://spot.insure/compare/cna-vs-marsh-mclennan-agency/crime)
- [CNA vs Marsh McLennan Agency D&O Insurance](https://spot.insure/compare/cna-vs-marsh-mclennan-agency/directors-officers)
- [CNA vs Marsh McLennan Agency Employment Practices Liability Insurance](https://spot.insure/compare/cna-vs-marsh-mclennan-agency/employment-practices)
- [CNA vs Marsh McLennan Agency Fiduciary Liability Insurance](https://spot.insure/compare/cna-vs-marsh-mclennan-agency/fiduciary)
- [CNA vs Marsh McLennan Agency General Liability Insurance](https://spot.insure/compare/cna-vs-marsh-mclennan-agency/general-liability)
- [CNA vs Marsh McLennan Agency Kidnap and Ransom Insurance](https://spot.insure/compare/cna-vs-marsh-mclennan-agency/kidnap-ransom)
- [CNA vs Marsh McLennan Agency Media Liability Insurance](https://spot.insure/compare/cna-vs-marsh-mclennan-agency/media)
- [CNA vs Marsh McLennan Agency Professional Liability (E&O) Insurance](https://spot.insure/compare/cna-vs-marsh-mclennan-agency/professional-errors-omissions)
- [CNA vs Marsh McLennan Agency Surety Bonds](https://spot.insure/compare/cna-vs-marsh-mclennan-agency/surety-bonds)
- [CNA vs Marsh McLennan Agency Workers’ Compensation Insurance](https://spot.insure/compare/cna-vs-marsh-mclennan-agency/workers-compensation)
- [AIG vs CNA Cyber Insurance](https://spot.insure/compare/aig-vs-cna/cyber)
- [AIG vs Marsh McLennan Agency Cyber Insurance](https://spot.insure/compare/aig-vs-marsh-mclennan-agency/cyber)
- [Alliance Risk vs CNA Cyber Insurance](https://spot.insure/compare/alliance-risk-vs-cna/cyber)
- [Alliance Risk vs Marsh McLennan Agency Cyber Insurance](https://spot.insure/compare/alliance-risk-vs-marsh-mclennan-agency/cyber)
- [Amelia Risk vs CNA Cyber Insurance](https://spot.insure/compare/amelia-risk-vs-cna/cyber)
- [Amelia Risk vs Marsh McLennan Agency Cyber Insurance](https://spot.insure/compare/amelia-risk-vs-marsh-mclennan-agency/cyber)

## Sources for CNA vs Marsh McLennan Agency Cyber Insurance

### Sources About CNA

1. [Insurance for Small Businesses](https://www.cna.com/solutions/small-business). CNA; Insurance for Small Businesses, lines 38-50 and 65-67 (CNA Central and agent route); lines 79-106 (product and stated appetite lists); page footer line 132 (CNA registered service mark).. Accessed 2026-09-28.
2. [CNA Connect Small Businessowners Policy (BOP) | CNA Insurance](https://www.cna.com/products/cna-connect). CNA; CNA Connect; coverages, product range, services. Accessed 2026-09-28.
3. [General Disclaimer](https://www.cna.com/cnadisclaimer/generaldisclaimer). CNA; General Disclaimer paragraphs 1 and 5 (HTML lines 24 and 28): CNA describes Continental Casualty Company and its relevant affiliates; references to CNA may include one or more CCC affiliates; each particular policy/product/service is the responsibility only of the specific CNA company that issues or supplies it. Footer line 57 identifies CNA Financial Corporation as trademark registrant. Re-read 2026-09-29.. Accessed 2026-09-29.
4. [Cyber Insurance - Cyber Risk Solutions | CNA Insurance](https://www.cna.com/products/cyber). CNA; Cyber, Media, Technology & Professional Liability; product sections. Accessed 2026-09-28.

### Sources About Marsh McLennan Agency

5. [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.
6. [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.
7. [Cyber | MMA](https://www.marshmma.com/us/solutions/cyber.html). Marsh McLennan Agency; Cyber solution overview and cyber-risk services.. Accessed 2026-09-30.

### Sources for the Cyber Insurance Guide

8. [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.
9. [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 2026-10-01. 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.

## CNA Review Scores for 2026

Review Score: 9.0 / 10 from 1 rated source, equally weighted.

Customer feedback on CNA is mixed and hard to compare. NerdWallet gave it 4.5 out of 5 for manufacturers, while Trustpilot shows about 1.4 out of 5 from 49 mostly self-selected reviews.

- NerdWallet: NerdWallet editorial rating for manufacturers 4.5/5 (Editorial rating). NerdWallet editorial assessment of CNA for U.S. manufacturers, not consumer average. Period: Published 2026-03-26. Checked 2026-09-29. [Best Insurance for Manufacturers in 2026](https://www.nerdwallet.com/business/insurance/learn/manufacturers)
- Trustpilot: Displayed Trustpilot TrustScore 1.4/5 page text; 1.5/5 badge (TrustScore out of 5); 49 reviews. CNA.com profile, mixed business and consumer/LTC reports; self-selected, not representative commercial P&C sample. Period: 14 reviews in prior 12 months; 2026-09-29. Checked 2026-09-29. [CNA customer reviews](https://www.trustpilot.com/review/www.cna.com)
- BBB: BBB customer-review average 1/5 (BBB star rating); 6 reviews. Long Term Care Insurance profile covering headquarters/corporate locations; not commercial P&C; six self-selected reviews. Period: Displayed 2026-09-29. Checked 2026-09-29. [CNA Financial Corporation customer reviews](https://www.bbb.org/us/il/chicago/profile/long-term-care-insurance/cna-financial-corporation-0683-90032439/customer-reviews)

Reviewed 2026-09-29. [Read the sourced review](https://spot.insure/insurance-providers/cna/reviews).

## Marsh McLennan Agency Review Scores for 2026

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/cna-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)