---
title: "CNA vs Marsh McLennan Agency: Commercial Auto Insurance"
description: "CNA publishes liability and physical-damage auto details, while Marsh McLennan Agency describes adviser-led placement without specifying policy terms."
canonical: "https://spot.insure/compare/cna-vs-marsh-mclennan-agency/commercial-auto"
page-type: "line-comparison"
updated-at: "2026-09-30"
comparison-pair: "cna-vs-marsh-mclennan-agency"
provider-a: "cna"
provider-b: "marsh-mclennan-agency"
coverage-line: "commercial-auto"
---

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

## Agent Guide

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

**Key facts:**
- Line: Commercial Auto 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 2026-09-30. 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
- [Commercial Auto Insurance guide](https://spot.insure/coverage/commercial-auto) — 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 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 Surety Bonds](https://spot.insure/compare/cna-vs-marsh-mclennan-agency/surety-bonds) — sibling comparison (other line, or other pair for this line)
- [AIG vs CNA Commercial Auto Insurance](https://spot.insure/compare/aig-vs-cna/commercial-auto) — sibling comparison (other line, or other pair for this line)
- [AIG vs Marsh McLennan Agency Commercial Auto Insurance](https://spot.insure/compare/aig-vs-marsh-mclennan-agency/commercial-auto) — sibling comparison (other line, or other pair for this line)
- [Alliance Risk vs Marsh McLennan Agency Commercial Auto Insurance](https://spot.insure/compare/alliance-risk-vs-marsh-mclennan-agency/commercial-auto) — sibling comparison (other line, or other pair for this line)
- [The Baldwin Group vs CNA Commercial Auto Insurance](https://spot.insure/compare/baldwin-vs-cna/commercial-auto) — sibling comparison (other line, or other pair for this line)
- [The Baldwin Group vs Marsh McLennan Agency Commercial Auto Insurance](https://spot.insure/compare/baldwin-vs-marsh-mclennan-agency/commercial-auto) — sibling comparison (other line, or other pair for this line)
- [Chubb vs Marsh McLennan Agency Commercial Auto Insurance](https://spot.insure/compare/chubb-vs-marsh-mclennan-agency/commercial-auto) — sibling comparison (other line, or other pair for this line)

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

CNA publishes liability and physical-damage auto details, while Marsh McLennan Agency describes adviser-led placement without specifying policy terms.

## Research Scope and Use

Use this comparison to evaluate CNA and Marsh McLennan Agency for Commercial Auto 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

CNA names owned, hired and non-owned vehicle liability, physical damage and an executive endorsement. Marsh McLennan Agency arranges commercial auto and invites organizations to discuss their operations with an adviser. [4](https://www.cna.com/products/commercial-auto "Commercial Auto Insurance for Businesses | CNA Insurance") [7](https://www.marshmma.com/us/services/business-insurance.html "Business Insurance | 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 Commercial Auto Insurance?

Commercial auto suits businesses that use vehicles for work and need liability protection; damage to your own vehicles is a separate coverage choice. If employees drive personal or rented cars, check how those trips are handled. [8](https://www.insurance.ca.gov/01-consumers/105-type/95-guides/09-comm/commercialguide.cfm "Commercial Insurance Guide") [9](https://content.naic.org/insurance-topics/auto-insurance "Auto Insurance") [10](https://www.iii.org/publication/insuring-your-business-small-business-owners-guide-to-insurance/specific-coverages/business-vehicle-insurance "Business Vehicle Insurance") [11](https://nationalgeneral.com/forms_catalog/CA0001_10012013.pdf "Business Auto Coverage Form")

## Key Differences in Commercial Auto Insurance

### Published Auto Scope

CNA's commercial-auto record specifies business-use owned, hired and non-owned vehicles for bodily-injury and property-damage liability, plus physical damage and an optional executive endorsement. Marsh McLennan Agency describes arranging commercial auto and says advisers analyze an organization's operations, assets, liabilities and loss exposures, but its reviewed overview does not state policy terms. For a buyer comparing exposure, CNA provides named coverage categories; MMA's consultation is where the specific carrier terms must be established. [4](https://www.cna.com/products/commercial-auto "Commercial Auto Insurance for Businesses | CNA Insurance") [4](https://www.cna.com/products/commercial-auto "Commercial Auto Insurance for Businesses | CNA Insurance") [7](https://www.marshmma.com/us/services/business-insurance.html "Business Insurance | MMA") [7](https://www.marshmma.com/us/services/business-insurance.html "Business Insurance | MMA")

### Support and Route to a Proposal

CNA names Driver Distractions/Cargo Securement programs and claims support. MMA invites prospects to contact an adviser or specialist, without establishing a quote, bind or effective-date timeline. Your choice of route may depend on whether you want named auto programs up front or an adviser to assess operations and arrange terms; ask what service will accompany the final policy. [4](https://www.cna.com/products/commercial-auto "Commercial Auto Insurance for Businesses | CNA Insurance") [7](https://www.marshmma.com/us/services/business-insurance.html "Business Insurance | MMA")

## What to Confirm in Commercial Auto Insurance Quotes

- Ask MMA for the insurer, covered auto categories, limits, retentions and policy form. [7](https://www.marshmma.com/us/services/business-insurance.html "Business Insurance | MMA") [7](https://www.marshmma.com/us/services/business-insurance.html "Business Insurance | MMA")
- Ask CNA which programs and endorsements will be on your quote. [4](https://www.cna.com/products/commercial-auto "Commercial Auto Insurance for Businesses | CNA Insurance") [4](https://www.cna.com/products/commercial-auto "Commercial Auto Insurance for Businesses | CNA Insurance")

## Offering Details

| Criteria | CNA Commercial Auto | Marsh McLennan Agency commercial auto (official overview) |
| --- | --- | --- |
| Role in This Line | Confirm in your quote. | Marsh McLennan Agency describes arranging commercial auto for the audience stated on the cited product page. [7](https://www.marshmma.com/us/services/business-insurance.html "Business Insurance | MMA") (Evidence: Company-reported; scope: commercial auto 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 | Confirm in your quote. | Organizations seeking business insurance; the source says advisers analyze operations, assets, liabilities, and loss exposures. [7](https://www.marshmma.com/us/services/business-insurance.html "Business Insurance | MMA") (Evidence: Company-reported; scope: commercial auto 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 | CNA commercial auto covers business-use owned, hired and non-owned vehicles for bodily injury/property damage. [4](https://www.cna.com/products/commercial-auto "Commercial Auto Insurance for Businesses | 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 commercial auto Claim limitation: Company-reported; policy wording, underwriting and jurisdiction-specific availability control..)<br><br>CNA lists automobile liability and physical damage, and an optional Drive Other Car endorsement for executives. [4](https://www.cna.com/products/commercial-auto "Commercial Auto Insurance for Businesses | 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 commercial auto Claim limitation: Company-reported; policy wording, underwriting and jurisdiction-specific availability control..) | The cited product page describes commercial-auto insurance as one of the business coverage types the agency places; the overview does not state policy terms. Marketing description only; actual coverage, exclusions, conditions, limits, and availability depend on the issued policy and jurisdiction. [7](https://www.marshmma.com/us/services/business-insurance.html "Business Insurance | MMA") (Evidence: Company-reported; scope: commercial auto 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/services/business-insurance.html "Business 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..) |
| Risk Services | CNA names Driver Distractions/Cargo Securement programs and claims support. [4](https://www.cna.com/products/commercial-auto "Commercial Auto Insurance for Businesses | 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 commercial auto 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/services/business-insurance.html "Business Insurance | MMA") (Evidence: Company-reported; scope: commercial auto 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

- [CNA vs Marsh McLennan Agency](https://spot.insure/compare/cna-vs-marsh-mclennan-agency): all coverage lines, business roles, service and claims.
- [What Is Commercial Auto Insurance?](https://spot.insure/coverage/commercial-auto): Commercial auto covers liability from vehicles used for work, with vehicle damage and employee personal or rented cars requiring separate quote checks.
- [CNA vs Marsh McLennan Agency Commercial Property Insurance](https://spot.insure/compare/cna-vs-marsh-mclennan-agency/commercial-property)
- [CNA vs Marsh McLennan Agency Surety Bonds](https://spot.insure/compare/cna-vs-marsh-mclennan-agency/surety-bonds)
- [AIG vs CNA Commercial Auto Insurance](https://spot.insure/compare/aig-vs-cna/commercial-auto)
- [AIG vs Marsh McLennan Agency Commercial Auto Insurance](https://spot.insure/compare/aig-vs-marsh-mclennan-agency/commercial-auto)
- [Alliance Risk vs Marsh McLennan Agency Commercial Auto Insurance](https://spot.insure/compare/alliance-risk-vs-marsh-mclennan-agency/commercial-auto)
- [The Baldwin Group vs CNA Commercial Auto Insurance](https://spot.insure/compare/baldwin-vs-cna/commercial-auto)
- [The Baldwin Group vs Marsh McLennan Agency Commercial Auto Insurance](https://spot.insure/compare/baldwin-vs-marsh-mclennan-agency/commercial-auto)
- [Chubb vs Marsh McLennan Agency Commercial Auto Insurance](https://spot.insure/compare/chubb-vs-marsh-mclennan-agency/commercial-auto)

## Sources

### 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. [Commercial Auto Insurance for Businesses | CNA Insurance](https://www.cna.com/products/commercial-auto). CNA; Coverages, endorsements, risk control, claims. Accessed 2026-09-28.

### 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. [Business Insurance | MMA](https://www.marshmma.com/us/services/business-insurance.html). Marsh McLennan Agency; Business insurance coverage options; commercial auto is specifically listed among business insurance types.. Accessed 2026-09-30.

### Commercial Auto Insurance Guide

8. [Commercial Insurance Guide](https://www.insurance.ca.gov/01-consumers/105-type/95-guides/09-comm/commercialguide.cfm). California Department of Insurance; Commercial Automobile: Coverage, Classification and Limits. Accessed 2026-09-16.
9. [Auto Insurance](https://content.naic.org/insurance-topics/auto-insurance). NAIC; Coverages. Accessed 2026-09-16.
10. [Business Vehicle Insurance](https://www.iii.org/publication/insuring-your-business-small-business-owners-guide-to-insurance/specific-coverages/business-vehicle-insurance). Insurance Information Institute; Will My Personal Auto Policy Cover Business Use?; What Vehicles Are Covered?; What Coverage Do I Need if Employees Drive Their Personal Vehicles for Business?; Does a Business Umbrella Cover Autos?; Do I Need a Business Auto Policy?; Be Sure the Right Insured Is on the Policy. Accessed 2026-09-16.
11. [Business Auto Coverage Form](https://nationalgeneral.com/forms_catalog/CA0001_10012013.pdf). Insurance Services Office, Inc.; hosted by National General; I.A, printed/PDF page 1; II.A.1, printed/PDF page 2; III.C–D, printed/PDF page 6; II.B.6, printed/PDF page 3; III.B.3, printed/PDF page 6. 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.

## CNA Reviews

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 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/cna-vs-marsh-mclennan-agency/commercial-auto.md)
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