---
title: "Gallagher vs Marsh McLennan Agency: Commercial Auto Insurance"
description: "Gallagher offers online, phone, and callback routes to start a small-business auto quote; Marsh McLennan Agency invites buyers to contact an adviser."
canonical: "https://spot.insure/compare/gallagher-vs-marsh-mclennan-agency/commercial-auto"
page-type: "line-comparison"
updated-at: "2026-09-30"
comparison-pair: "gallagher-vs-marsh-mclennan-agency"
provider-a: "gallagher"
provider-b: "marsh-mclennan-agency"
coverage-line: "commercial-auto"
---

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/gallagher-vs-marsh-mclennan-agency/commercial-auto)

## Agent Guide

**What this page is:** Focused comparison of Gallagher 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 Gallagher 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:**
- Gallagher vs Marsh McLennan Agency for Commercial Auto Insurance: how do they differ?
- Which is better for Commercial Auto Insurance, Gallagher or Marsh McLennan Agency?
- What does Gallagher 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 Gallagher or Marsh McLennan Agency?

**Key facts:**
- Line: Commercial Auto Insurance. Providers: Gallagher 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:**
- [Gallagher vs Marsh McLennan Agency](https://spot.insure/compare/gallagher-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
- [Gallagher profile](https://spot.insure/insurance-providers/gallagher) — provider profile (evidence)
- [Marsh McLennan Agency profile](https://spot.insure/insurance-providers/marsh-mclennan-agency) — provider profile (evidence)
- [Gallagher vs Marsh McLennan Agency Commercial Property Insurance](https://spot.insure/compare/gallagher-vs-marsh-mclennan-agency/commercial-property) — sibling comparison (other line, or other pair for this line)
- [Gallagher vs Marsh McLennan Agency Crime Insurance](https://spot.insure/compare/gallagher-vs-marsh-mclennan-agency/crime) — sibling comparison (other line, or other pair for this line)
- [Gallagher vs Marsh McLennan Agency Cyber Insurance](https://spot.insure/compare/gallagher-vs-marsh-mclennan-agency/cyber) — sibling comparison (other line, or other pair for this line)
- [Gallagher vs Marsh McLennan Agency Employment Practices Liability Insurance](https://spot.insure/compare/gallagher-vs-marsh-mclennan-agency/employment-practices) — sibling comparison (other line, or other pair for this line)
- [Gallagher vs Marsh McLennan Agency Fiduciary Liability Insurance](https://spot.insure/compare/gallagher-vs-marsh-mclennan-agency/fiduciary) — sibling comparison (other line, or other pair for this line)
- [Gallagher vs Marsh McLennan Agency General Liability Insurance](https://spot.insure/compare/gallagher-vs-marsh-mclennan-agency/general-liability) — sibling comparison (other line, or other pair for this line)
- [AIG vs Gallagher Commercial Auto Insurance](https://spot.insure/compare/aig-vs-gallagher/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 Gallagher Commercial Auto Insurance](https://spot.insure/compare/alliance-risk-vs-gallagher/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 Gallagher Commercial Auto Insurance](https://spot.insure/compare/baldwin-vs-gallagher/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)

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

Gallagher offers online, phone, and callback routes to start a small-business auto quote; Marsh McLennan Agency invites buyers to contact an adviser.

## Research Scope and Use

Use this comparison to evaluate Gallagher 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

Gallagher describes an online quote form, phone support, and scheduled callbacks for commercial auto. Marsh McLennan Agency directs buyers to an adviser or specialist and does not publish a quote timeline. [6](https://www.gallaghersmallbusiness.com/insurance-products/auto/ "Commercial Auto Insurance") [9](https://www.marshmma.com/us/services/business-insurance.html "Business Insurance | MMA")

## What Is Gallagher?

Gallagher’s technology specialists serve startups through global enterprises, while its executive-risk team supports IPO and M&A needs; small firms seeking one simple digital quote should compare online agencies. [1](https://www.ajg.com/industries/technology-insurance/ "Technology Insurance") [2](https://www.gallaghersmallbusiness.com/technology-services/ "Insurance for Technology & IT Businesses") [3](https://www.ajg.com/insurance/executive-and-financial-risk-insurance/ "Executive and Financial Risk Insurance") [4](https://www.gallaghersmallbusiness.com/legal-information/ "Legal Information") [5](https://www.ajg.com/merger-partners/woodruff-sawyer-is-now-gallagher/ "Woodruff Sawyer Is Now Gallagher")

[Gallagher profile](https://spot.insure/insurance-providers/gallagher)

## 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. [7](https://www.marshmma.com/us/mma/about-us.html "Who We Are") [8](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. [10](https://www.insurance.ca.gov/01-consumers/105-type/95-guides/09-comm/commercialguide.cfm "Commercial Insurance Guide") [11](https://content.naic.org/insurance-topics/auto-insurance "Auto Insurance") [12](https://www.iii.org/publication/insuring-your-business-small-business-owners-guide-to-insurance/specific-coverages/business-vehicle-insurance "Business Vehicle Insurance") [13](https://nationalgeneral.com/forms_catalog/CA0001_10012013.pdf "Business Auto Coverage Form")

## Key Differences in Commercial Auto Insurance

### What the Coverage Includes

Gallagher says small-business buyers can start a commercial-auto quote through an online form, an advisor phone line, or a scheduled callback. MMA directs organizations to contact an adviser or specialist to discuss placement. A business that wants to choose its contact route can compare Gallagher’s stated channels with MMA’s adviser-led process, then ask how each handles fleet schedules and changes after binding. [6](https://www.gallaghersmallbusiness.com/insurance-products/auto/ "Commercial Auto Insurance") [9](https://www.marshmma.com/us/services/business-insurance.html "Business Insurance | MMA")

### Access and Service

Gallagher describes coverage for owned, hired, rented, and employee-owned vehicles used for business, including bodily injury, property damage, vehicle damage, and medical costs. MMA’s public overview identifies commercial auto as a placement but does not list policy features. For employees using their own cars, ask both providers how non-owned vehicle liability is addressed and whether the quote includes those drivers. [6](https://www.gallaghersmallbusiness.com/insurance-products/auto/ "Commercial Auto Insurance") [9](https://www.marshmma.com/us/services/business-insurance.html "Business Insurance | MMA")

## What to Confirm in Commercial Auto Insurance Quotes

- Ask Gallagher which owned, leased, hired, and employee vehicles appear on the quote and what liability limits apply. [6](https://www.gallaghersmallbusiness.com/insurance-products/auto/ "Commercial Auto Insurance")
- Ask MMA whether employee-owned vehicles used for work require a separate HNOA endorsement. [9](https://www.marshmma.com/us/services/business-insurance.html "Business Insurance | MMA")
- Ask both providers for the proposed insurer, limits, deductibles, and endorsements before binding. [6](https://www.gallaghersmallbusiness.com/insurance-products/auto/ "Commercial Auto Insurance") [9](https://www.marshmma.com/us/services/business-insurance.html "Business Insurance | MMA")

## Offering Details

| Criteria | Gallagher Small Business Commercial Auto Insurance | Marsh McLennan Agency commercial auto (official overview) |
| --- | --- | --- |
| Role in This Line | Gallagher Small Business arranges commercial auto coverage with partner carriers rather than underwriting the policy itself. [6](https://www.gallaghersmallbusiness.com/insurance-products/auto/ "Commercial Auto Insurance") (Evidence: Company-reported; scope: Gallagher Small Business's direct-to-small-business commercial auto product page..) | Marsh McLennan Agency describes arranging commercial auto for the audience stated on the cited product page. [9](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..) |
| Issuing Insurer | The commercial auto product page does not name the insurer that would issue a given business's policy. [6](https://www.gallaghersmallbusiness.com/insurance-products/auto/ "Commercial Auto Insurance") (Evidence: Not publicly disclosed; scope: Checked the commercial auto product page on 2026-09-23..) | Confirm in your quote. |
| Who It’s For | Gallagher recommends this coverage for businesses that use vehicles for business purposes, including owned, hired and non-owned autos, rented or leased vehicles, and employees who drive their own cars for work. [6](https://www.gallaghersmallbusiness.com/insurance-products/auto/ "Commercial Auto Insurance") (Evidence: Company-reported; scope: Product page "Recommended for businesses that" list; actual acceptance depends on underwriting..) | Organizations seeking business insurance; the source says advisers analyze operations, assets, liabilities, and loss exposures. [9](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 | Gallagher describes commercial auto as covering bodily injury and property damage to third parties, accidents caused by uninsured or underinsured drivers, physical damage to owned, rented, hired or employee vehicles, and medical costs for the business owner, employees and passengers, plus theft and damage. [6](https://www.gallaghersmallbusiness.com/insurance-products/auto/ "Commercial Auto Insurance") (Evidence: Company-reported; scope: Product page coverage list; the issued policy and its exclusions control..)<br><br>Gallagher's small-business team says the commercial auto market remains challenging because of social inflation and the long-tail nature of auto liability claims, and that rising repair costs from added vehicle electronics and safety features, plus supply-chain delays, are increasing claim costs. [6](https://www.gallaghersmallbusiness.com/insurance-products/auto/ "Commercial Auto Insurance") (Evidence: Company-reported; scope: Product page market-commentary section; a general market view, not a quote for any specific business..)<br><br>Gallagher illustrates the coverage gap when a personal vehicle is used for business: it describes a bakery owner whose personal auto insurer refused to pay a delivery-related accident claim because she lacked commercial auto insurance. [6](https://www.gallaghersmallbusiness.com/insurance-products/auto/ "Commercial Auto Insurance") (Evidence: Company-reported; scope: Product page hypothetical claim scenario; illustrative example, not a report of an actual claim outcome..) | 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. [9](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 | The commercial auto product page does not publish liability limits, deductibles or premiums; it directs prospective buyers to request a quote instead. [6](https://www.gallaghersmallbusiness.com/insurance-products/auto/ "Commercial Auto Insurance") (Evidence: Not publicly disclosed; scope: Checked the commercial auto product page on 2026-09-23..) | 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. [9](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..) |
| How to Apply | Gallagher offers an online quote form, a small business advisor phone line (1-833-292-9441, Monday through Friday, 8 a.m. to 5 p.m., continental U.S.), and a scheduled callback request to start a commercial auto quote. [6](https://www.gallaghersmallbusiness.com/insurance-products/auto/ "Commercial Auto Insurance") (Evidence: Company-reported; scope: Product page "Get Covered Now" section..) | 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. [9](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

- [Gallagher vs Marsh McLennan Agency](https://spot.insure/compare/gallagher-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.
- [Gallagher vs Marsh McLennan Agency Commercial Property Insurance](https://spot.insure/compare/gallagher-vs-marsh-mclennan-agency/commercial-property)
- [Gallagher vs Marsh McLennan Agency Crime Insurance](https://spot.insure/compare/gallagher-vs-marsh-mclennan-agency/crime)
- [Gallagher vs Marsh McLennan Agency Cyber Insurance](https://spot.insure/compare/gallagher-vs-marsh-mclennan-agency/cyber)
- [Gallagher vs Marsh McLennan Agency Employment Practices Liability Insurance](https://spot.insure/compare/gallagher-vs-marsh-mclennan-agency/employment-practices)
- [Gallagher vs Marsh McLennan Agency Fiduciary Liability Insurance](https://spot.insure/compare/gallagher-vs-marsh-mclennan-agency/fiduciary)
- [Gallagher vs Marsh McLennan Agency General Liability Insurance](https://spot.insure/compare/gallagher-vs-marsh-mclennan-agency/general-liability)
- [AIG vs Gallagher Commercial Auto Insurance](https://spot.insure/compare/aig-vs-gallagher/commercial-auto)
- [AIG vs Marsh McLennan Agency Commercial Auto Insurance](https://spot.insure/compare/aig-vs-marsh-mclennan-agency/commercial-auto)
- [Alliance Risk vs Gallagher Commercial Auto Insurance](https://spot.insure/compare/alliance-risk-vs-gallagher/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 Gallagher Commercial Auto Insurance](https://spot.insure/compare/baldwin-vs-gallagher/commercial-auto)
- [The Baldwin Group vs Marsh McLennan Agency Commercial Auto Insurance](https://spot.insure/compare/baldwin-vs-marsh-mclennan-agency/commercial-auto)

## Sources

### Gallagher

1. [Technology Insurance](https://www.ajg.com/industries/technology-insurance/). Gallagher; Introduction; Solutions and coverages for the technology industry: Technology errors and omissions including cyber, Intellectual property insurance, Product liability, Employee benefits; Data-driven insights; global network. Accessed 2026-09-16.
2. [Insurance for Technology & IT Businesses](https://www.gallaghersmallbusiness.com/technology-services/). Gallagher Small Business; Protection for IT Professionals & Their Technology-Based Businesses; recommended coverage menu, including Surety Bond Programs; Connect With An Advisor. Accessed 2026-09-16.
3. [Executive and Financial Risk Insurance](https://www.ajg.com/insurance/executive-and-financial-risk-insurance/). Gallagher; Opening (insurance broking and placement); three key services; Directors and Officers; IPO and direct listings; Employment Practices; Fiduciary; Employee Dishonesty (Crime) and Fidelity Bond; Kidnap, Ransom and Extortion; M&A Transactional Insurance. Accessed 2026-09-16.
4. [Legal Information](https://www.gallaghersmallbusiness.com/legal-information/). Gallagher Small Business; Producer identification immediately above Quick Links. Accessed 2026-09-16.
5. [Woodruff Sawyer Is Now Gallagher](https://www.ajg.com/merger-partners/woodruff-sawyer-is-now-gallagher/). Gallagher; Opening; Executive and Financial Risk consulting; Continued access to client portals; contact form. Accessed 2026-09-16.
6. [Commercial Auto Insurance](https://www.gallaghersmallbusiness.com/insurance-products/auto/). Gallagher Small Business; Commercial Auto Insurance Overview; Do you need Commercial Auto insurance?; Recommended for businesses that:; Small business auto market trends; Consider this claim scenario; Get Covered Now. Accessed 2026-09-23.

### Marsh McLennan Agency

7. [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.
8. [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.
9. [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

10. [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.
11. [Auto Insurance](https://content.naic.org/insurance-topics/auto-insurance). NAIC; Coverages. Accessed 2026-09-16.
12. [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.
13. [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.

## Gallagher Reviews

Review Score: 9.3 / 10 from 3 rated sources, equally weighted.

Gallagher has strong Trustpilot feedback and a favorable historical large-commercial survey result. Neither directly measures today’s US small-business service.

- J.D. Power: Broker satisfaction rank/score 2nd / 855 (Rank / 1,000-point score). 2017 US/Canada large-commercial broker study; participating organizations had at least $100m annual revenue or operating budget; not small-business-specific. Period: 2017 study. Checked 2026-09-25. [JD Power 2017 Large Commercial Insurance Study](https://www.jdpower.com/business/press-releases/jd-power-2017-large-commercial-insurance-study)
- Trustpilot: TrustScore 4.6 (5 stars); 8190 reviews. Global Arthur J. Gallagher & Co. brand profile; mixed countries and insurance lines, not US commercial-only. Period: 976 reviews in prior 12 months; observed 2026-09-25. Checked 2026-09-25. [Gallagher Reviews | Trustpilot](https://www.trustpilot.com/review/www.ajg.com)
- BBB: BBB grade A+ (BBB letter grade). BBB corporate headquarters profile for Gallagher, Rolling Meadows, Illinois. Checked 2026-09-25. [Gallagher | BBB Business Profile](https://www.bbb.org/us/il/rolling-meadows/profile/insurance-companies/gallagher-0654-23000270)

Reviewed 2026-09-25. [Read the sourced review](https://spot.insure/insurance-providers/gallagher/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/gallagher-vs-marsh-mclennan-agency/commercial-auto.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)