--- title: "Liberty Mutual vs Marsh McLennan Agency: Professional Liability (E&O) Insurance" description: "Compare the professional lines named by Marsh McLennan Agency with Liberty Mutual’s physician program listing." canonical: "https://spot.insure/compare/liberty-mutual-vs-marsh-mclennan-agency/professional-errors-omissions" page-type: "line-comparison" updated-at: "2026-10-01" comparison-pair: "liberty-mutual-vs-marsh-mclennan-agency" provider-a: "liberty-mutual" provider-b: "marsh-mclennan-agency" coverage-line: "professional-errors-omissions" --- 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/liberty-mutual-vs-marsh-mclennan-agency/professional-errors-omissions) ## Agent Guide **What this page is:** Focused comparison of Liberty Mutual and Marsh McLennan Agency for Professional Liability (E&O) 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 Professional Liability (E&O) Insurance questions about Liberty Mutual 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:** - Liberty Mutual vs Marsh McLennan Agency for Professional Liability (E&O) Insurance: how do they differ? - Which is better for Professional Liability (E&O) Insurance, Liberty Mutual or Marsh McLennan Agency? - What does Liberty Mutual or Marsh McLennan Agency publish about Professional Liability (E&O) Insurance (limits, eligibility, claims, add-ons)? - What should I confirm in a quote for Professional Liability (E&O) Insurance from Liberty Mutual or Marsh McLennan Agency? **Key facts:** - Line: Professional Liability (E&O) Insurance. Providers: Liberty Mutual 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:** - [Liberty Mutual vs Marsh McLennan Agency](https://spot.insure/compare/liberty-mutual-vs-marsh-mclennan-agency) — parent: all coverage lines for this pair - [Professional Liability (E&O) Insurance guide](https://spot.insure/coverage/professional-errors-omissions) — coverage explainer for this line - [Liberty Mutual profile](https://spot.insure/insurance-providers/liberty-mutual) — provider profile (evidence) - [Marsh McLennan Agency profile](https://spot.insure/insurance-providers/marsh-mclennan-agency) — provider profile (evidence) - [Liberty Mutual vs Marsh McLennan Agency Builders Risk Insurance](https://spot.insure/compare/liberty-mutual-vs-marsh-mclennan-agency/builders-risk) — sibling comparison (other line, or other pair for this line) - [Liberty Mutual vs Marsh McLennan Agency Cargo and Transit Insurance](https://spot.insure/compare/liberty-mutual-vs-marsh-mclennan-agency/cargo-transit) — sibling comparison (other line, or other pair for this line) - [Liberty Mutual vs Marsh McLennan Agency Commercial Auto Insurance](https://spot.insure/compare/liberty-mutual-vs-marsh-mclennan-agency/commercial-auto) — sibling comparison (other line, or other pair for this line) - [Liberty Mutual vs Marsh McLennan Agency Commercial Property Insurance](https://spot.insure/compare/liberty-mutual-vs-marsh-mclennan-agency/commercial-property) — sibling comparison (other line, or other pair for this line) - [Liberty Mutual vs Marsh McLennan Agency Crime Insurance](https://spot.insure/compare/liberty-mutual-vs-marsh-mclennan-agency/crime) — sibling comparison (other line, or other pair for this line) - [Liberty Mutual vs Marsh McLennan Agency Cyber Insurance](https://spot.insure/compare/liberty-mutual-vs-marsh-mclennan-agency/cyber) — sibling comparison (other line, or other pair for this line) - [Liberty Mutual vs Marsh McLennan Agency D&O Insurance](https://spot.insure/compare/liberty-mutual-vs-marsh-mclennan-agency/directors-officers) — sibling comparison (other line, or other pair for this line) - [Liberty Mutual vs Marsh McLennan Agency Employment Practices Liability Insurance](https://spot.insure/compare/liberty-mutual-vs-marsh-mclennan-agency/employment-practices) — sibling comparison (other line, or other pair for this line) - [Liberty Mutual vs Marsh McLennan Agency Fiduciary Liability Insurance](https://spot.insure/compare/liberty-mutual-vs-marsh-mclennan-agency/fiduciary) — sibling comparison (other line, or other pair for this line) - [Liberty Mutual vs Marsh McLennan Agency General Liability Insurance](https://spot.insure/compare/liberty-mutual-vs-marsh-mclennan-agency/general-liability) — sibling comparison (other line, or other pair for this line) - [Liberty Mutual vs Marsh McLennan Agency Kidnap and Ransom Insurance](https://spot.insure/compare/liberty-mutual-vs-marsh-mclennan-agency/kidnap-ransom) — sibling comparison (other line, or other pair for this line) - [Liberty Mutual vs Marsh McLennan Agency Surety Bonds](https://spot.insure/compare/liberty-mutual-vs-marsh-mclennan-agency/surety-bonds) — sibling comparison (other line, or other pair for this line) - [Liberty Mutual vs Marsh McLennan Agency Workers’ Compensation Insurance](https://spot.insure/compare/liberty-mutual-vs-marsh-mclennan-agency/workers-compensation) — sibling comparison (other line, or other pair for this line) - [AIG vs Liberty Mutual Professional Liability (E&O) Insurance](https://spot.insure/compare/aig-vs-liberty-mutual/professional-errors-omissions) — sibling comparison (other line, or other pair for this line) - [AIG vs Marsh McLennan Agency Professional Liability (E&O) Insurance](https://spot.insure/compare/aig-vs-marsh-mclennan-agency/professional-errors-omissions) — sibling comparison (other line, or other pair for this line) - [Alliance Risk vs Liberty Mutual Professional Liability (E&O) Insurance](https://spot.insure/compare/alliance-risk-vs-liberty-mutual/professional-errors-omissions) — sibling comparison (other line, or other pair for this line) - [Alliance Risk vs Marsh McLennan Agency Professional Liability (E&O) Insurance](https://spot.insure/compare/alliance-risk-vs-marsh-mclennan-agency/professional-errors-omissions) — sibling comparison (other line, or other pair for this line) - [Aon vs Liberty Mutual Professional Liability (E&O) Insurance](https://spot.insure/compare/aon-vs-liberty-mutual/professional-errors-omissions) — sibling comparison (other line, or other pair for this line) - [Aon vs Marsh McLennan Agency Professional Liability (E&O) Insurance](https://spot.insure/compare/aon-vs-marsh-mclennan-agency/professional-errors-omissions) — sibling comparison (other line, or other pair for this line) # Liberty Mutual vs Marsh McLennan Agency: How Do They Compare for Professional Liability (E&O) Insurance? Compare the professional lines named by Marsh McLennan Agency with Liberty Mutual’s physician program listing. ## How to Use the Liberty Mutual vs Marsh McLennan Agency Professional Liability (E&O) Insurance Comparison Use this comparison to evaluate Liberty Mutual and Marsh McLennan Agency for Professional Liability (E&O) 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. ## Liberty Mutual vs Marsh McLennan Agency Professional Liability (E&O) Insurance Summary Marsh McLennan Agency names E&O, architects and engineers, and lawyers professional liability lines; Liberty Mutual lists a Physicians & Surgeons Professional program marked PL Only. [3](https://business.libertymutual.com/commercial-solutions/programs/ "Programs") [6](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA") ## What Is Liberty Mutual Business Insurance? Liberty Mutual spans small-commercial, commercial, specialty, surety, and reinsurance businesses. The insurer and distribution route depend on the product, so check the offer and policy before you compare terms. [1](https://www.libertymutualgroup.com/about-lm/investor-relations/our-company/company-profile "Company Profile") [2](https://business.libertymutual.com/commercial-solutions/ "Commercial Insurance Solutions") [Liberty Mutual profile](https://spot.insure/insurance-providers/liberty-mutual) ## 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 Professional Errors and Omissions (E&O) Insurance? Professional liability can help pay defense costs and covered losses when a client says your advice or service caused financial harm. If customers rely on your work, list every service you provide and check the claims-made reporting and prior-work terms. [7](https://www.tdi.texas.gov/commercial/pl-faq.html "FAQ: Professional liability insurance") [8](https://www.iii.org/article/professional-liability-insurance "Professional liability insurance") [9](https://www.sba.gov/counseling/launch-your-business/#business-insurance "Get business insurance") [10](https://www.hiscox.com/documents/pl-sample-policy-wording.pdf "Professional Liability – US Direct Errors and Omissions Insurance") ## What Are the Key Differences Between Liberty Mutual and Marsh McLennan Agency Professional Liability (E&O) Insurance? ### Named professional lines Marsh McLennan Agency’s overview names E&O, architects and engineers, and lawyers professional liability lines. Liberty Mutual’s specialty directory names a Physicians & Surgeons Professional program marked “PL Only.” The published records name these professional lines; they do not establish a second distinct, like-for-like difference for the same buyer exposure. [6](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA") [3](https://business.libertymutual.com/commercial-solutions/programs/ "Programs") ### Editorial hold: no second supported comparison The cited locators do not support another distinct, like-for-like comparison. This candidate remains on hold pending additional canonical evidence. ## What Should You Confirm in Liberty Mutual and Marsh McLennan Agency Professional Liability (E&O) Insurance Quotes? - Ask Marsh McLennan Agency which of the named E&O, architects and engineers, or lawyers professional lines relates to your work. [6](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA") - Ask Liberty Mutual’s administrator which physician program terms and limit options apply to your practice. [3](https://business.libertymutual.com/commercial-solutions/programs/ "Programs") ## Liberty Mutual vs Marsh McLennan Agency Professional Liability (E&O) Compared | Criteria | Physicians & Surgeons Professional program | Marsh McLennan Agency professional errors omissions (official overview) | | --- | --- | --- | | Role in This Line | Liberty Mutual lists a Physicians & Surgeons Professional program, marked “PL Only,” in its specialty-program portfolio. [3](https://business.libertymutual.com/commercial-solutions/programs/ "Programs") (Evidence: Company-reported; scope: Official Liberty Mutual commercial/product page; company-reported description scoped to Physicians & Surgeons Professional program. Not policy wording, underwriting approval, state eligibility or a coverage guarantee..) | Marsh McLennan Agency describes arranging professional errors omissions for the audience stated on the cited product page. [6](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA") (Evidence: Company-reported; scope: professional errors omissions 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 | Liberty Mutual says its programs are managed by program administrators; the page provides program inquiry contact details. [3](https://business.libertymutual.com/commercial-solutions/programs/ "Programs") (Evidence: Company-reported; scope: Official Liberty Mutual commercial/product page; company-reported description scoped to Physicians & Surgeons Professional program. Not policy wording, underwriting approval, state eligibility or a coverage guarantee..) | Organizations seeking professional liability placement; source does not imply all professions share one policy. [6](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA") (Evidence: Company-reported; scope: professional errors omissions 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 listing identifies professional liability only; it does not establish form terms, limits, exclusions or insurer for a quote. [3](https://business.libertymutual.com/commercial-solutions/programs/ "Programs") (Evidence: Company-reported; scope: Official Liberty Mutual commercial/product page; company-reported description scoped to Physicians & Surgeons Professional program. Not policy wording, underwriting approval, state eligibility or a coverage guarantee..) | The cited product page describes E&O and named specialist professional lines, including architects and engineers and lawyers professional liability; the overview does not treat them as one form. Marketing description only; actual coverage, exclusions, conditions, limits, and availability depend on the issued policy and jurisdiction. [6](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA") (Evidence: Company-reported; scope: professional errors omissions marketed by marsh-mclennan-agency; scope is limited to the cited official product overview and described audience. This is not a policy form or a universal eligibility statement..) | | Limits and Retentions | Confirm in your quote. | The cited overview does not set a universal limit or retention for this line. Ask for the proposed policy form, limits, retentions, exclusions, and conditions in the quote. [6](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA") (Evidence: Not publicly disclosed; scope: Only the cited marketing page was reviewed for published limit and retention information; no policy-form entitlement is inferred..) | | How to Apply | The cited product page does not establish an online application or policy-binding path; ask the listed team or your broker/agent how this product is placed. [3](https://business.libertymutual.com/commercial-solutions/programs/ "Programs") (Evidence: Not found in reviewed sources; scope: Reviewed product-page scope only. This not-found disposition is not a claim that no digital route exists..) | The page invites organizations to contact a Marsh McLennan Agency adviser or specialist to discuss placement. The page does not establish a quote, bind, or coverage-effective timeline. [6](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA") (Evidence: Company-reported; scope: professional errors omissions 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 Liberty Mutual vs Marsh McLennan Agency - [Liberty Mutual vs Marsh McLennan Agency](https://spot.insure/compare/liberty-mutual-vs-marsh-mclennan-agency): all coverage lines, business roles, service and claims. - [What Is Professional Errors and Omissions (E&O) Insurance?](https://spot.insure/coverage/professional-errors-omissions): Professional liability can help pay covered defense costs and losses when a client says your advice or service caused financial harm; check services and reporting terms. - [Liberty Mutual vs Marsh McLennan Agency Builders Risk Insurance](https://spot.insure/compare/liberty-mutual-vs-marsh-mclennan-agency/builders-risk) - [Liberty Mutual vs Marsh McLennan Agency Cargo and Transit Insurance](https://spot.insure/compare/liberty-mutual-vs-marsh-mclennan-agency/cargo-transit) - [Liberty Mutual vs Marsh McLennan Agency Commercial Auto Insurance](https://spot.insure/compare/liberty-mutual-vs-marsh-mclennan-agency/commercial-auto) - [Liberty Mutual vs Marsh McLennan Agency Commercial Property Insurance](https://spot.insure/compare/liberty-mutual-vs-marsh-mclennan-agency/commercial-property) - [Liberty Mutual vs Marsh McLennan Agency Crime Insurance](https://spot.insure/compare/liberty-mutual-vs-marsh-mclennan-agency/crime) - [Liberty Mutual vs Marsh McLennan Agency Cyber Insurance](https://spot.insure/compare/liberty-mutual-vs-marsh-mclennan-agency/cyber) - [Liberty Mutual vs Marsh McLennan Agency D&O Insurance](https://spot.insure/compare/liberty-mutual-vs-marsh-mclennan-agency/directors-officers) - [Liberty Mutual vs Marsh McLennan Agency Employment Practices Liability Insurance](https://spot.insure/compare/liberty-mutual-vs-marsh-mclennan-agency/employment-practices) - [Liberty Mutual vs Marsh McLennan Agency Fiduciary Liability Insurance](https://spot.insure/compare/liberty-mutual-vs-marsh-mclennan-agency/fiduciary) - [Liberty Mutual vs Marsh McLennan Agency General Liability Insurance](https://spot.insure/compare/liberty-mutual-vs-marsh-mclennan-agency/general-liability) - [Liberty Mutual vs Marsh McLennan Agency Kidnap and Ransom Insurance](https://spot.insure/compare/liberty-mutual-vs-marsh-mclennan-agency/kidnap-ransom) - [Liberty Mutual vs Marsh McLennan Agency Surety Bonds](https://spot.insure/compare/liberty-mutual-vs-marsh-mclennan-agency/surety-bonds) - [Liberty Mutual vs Marsh McLennan Agency Workers’ Compensation Insurance](https://spot.insure/compare/liberty-mutual-vs-marsh-mclennan-agency/workers-compensation) - [AIG vs Liberty Mutual Professional Liability (E&O) Insurance](https://spot.insure/compare/aig-vs-liberty-mutual/professional-errors-omissions) - [AIG vs Marsh McLennan Agency Professional Liability (E&O) Insurance](https://spot.insure/compare/aig-vs-marsh-mclennan-agency/professional-errors-omissions) - [Alliance Risk vs Liberty Mutual Professional Liability (E&O) Insurance](https://spot.insure/compare/alliance-risk-vs-liberty-mutual/professional-errors-omissions) - [Alliance Risk vs Marsh McLennan Agency Professional Liability (E&O) Insurance](https://spot.insure/compare/alliance-risk-vs-marsh-mclennan-agency/professional-errors-omissions) - [Aon vs Liberty Mutual Professional Liability (E&O) Insurance](https://spot.insure/compare/aon-vs-liberty-mutual/professional-errors-omissions) - [Aon vs Marsh McLennan Agency Professional Liability (E&O) Insurance](https://spot.insure/compare/aon-vs-marsh-mclennan-agency/professional-errors-omissions) ## Sources for Liberty Mutual vs Marsh McLennan Agency ### Sources About Liberty Mutual 1. [Company Profile](https://www.libertymutualgroup.com/about-lm/investor-relations/our-company/company-profile). Liberty Mutual Group; Strategic business units paragraph: US Retail Markets (individuals/small businesses; small commercial; countrywide) and Global Risk Solutions (mid-size/large businesses; commercial, specialty, reinsurance, surety; worldwide).. Accessed 2026-09-29. 2. [Commercial Insurance Solutions](https://business.libertymutual.com/commercial-solutions/). Liberty Mutual Business Insurance; Commercial solutions index names commercial auto and fleet, cyber, environmental liability, equipment breakdown, excess and surplus, general liability, healthcare liability, inland marine, management liability, multinational, ocean marine, professional liability, property, reinsurance, surety, umbrella/excess and workers compensation. Disclosure says policy insurer is named when offered, may be an affiliate/subsidiary or surplus-lines insurer; states/jurisdictions and actual policy terms vary.. Accessed 2026-09-29. 3. [Programs](https://business.libertymutual.com/commercial-solutions/programs/). Liberty Mutual Business Insurance; ‘Our programs portfolio’ lists Auto Salvage/Dismantlers, Fire Suppression and Sprinkler Contractors, Nonprofits, Physicians & Surgeons Professional (PL only), Post-surgical for bariatric and plastic surgeries, Roofing Contractors, Scrap Metal Dealers, Self-storage, and Sports and Fitness. Page says programs are managed by program administrators; not a complete business catalogue.. Accessed 2026-09-29. ### Sources About Marsh McLennan Agency 4. [Who We Are](https://www.marshmma.com/us/mma/about-us.html). Marsh McLennan Agency; Lines 193-195: ‘a business of Marsh’ and company-listed service lines across US and Canada. This does not establish the legal entity for an account, corporate ownership chart, or insurer role.. Accessed 2026-09-29. 5. [Small Business Insurance Solutions](https://www.marshmma.com/us/solutions/small-business.html). Marsh McLennan Agency; Lines 205-207: small-business audience and call invitation; lines 224-249 list six coverage categories and short descriptions; line 264 is an embedded form whose function is not stated. No form submitted.. Accessed 2026-09-29. 6. [Executive and Professional Liability | MMA](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html). Marsh McLennan Agency; E&O, architects and engineers, and lawyers professional lines are named in the policy suite.. Accessed 2026-09-30. ### Sources for the Professional Liability (E&O) Insurance Guide 7. [FAQ: Professional liability insurance](https://www.tdi.texas.gov/commercial/pl-faq.html). Texas Department of Insurance; What’s professional liability coverage?; What types of damages…; What’s general liability insurance?; Do I need professional liability… if I have general liability…?; Is professional liability insurance required?; Can a client require…?; What’s the difference between occurrence policies and claims-made policies. Accessed 2026-09-16. 8. [Professional liability insurance](https://www.iii.org/article/professional-liability-insurance). Insurance Information Institute; Opening paragraphs (professional services/advice and E&O name); Claims not covered by general liability; What types of businesses need professional liability insurance?; What’s covered… and what’s not (claims-made versus occurrence, defense and judgments, non-financial/intentional limits, BOP/in-home exclusion). Accessed 2026-09-16. 9. [Get business insurance](https://www.sba.gov/counseling/launch-your-business/#business-insurance). U.S. Small Business Administration; Six common types of business insurance table. Accessed 2026-09-16. 10. [Professional Liability – US Direct Errors and Omissions Insurance](https://www.hiscox.com/documents/pl-sample-policy-wording.pdf). Hiscox Inc. specimen; About this Policy / Coverage for Claims Made Against You; I.A Insuring Agreement; I.B Defense; I.C Settlement; II.A Notice of Claims; II.C Optional Extended Reporting Period; III.A, III.K, III.M, III.R, III.S Exclusions; IV.A–B Limits and Deductible; VI.O Professional Services; VI.U Wrongful Act. 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. ## Liberty Mutual Review Scores for 2026 Review Score: 7.2 / 10 from 2 rated sources, equally weighted. Customers give Liberty Mutual 4.2 out of 5 on Trustpilot from 3,836 reviews, but that page mixes auto, home and life customers with business ones. For business insurance specifically, NerdWallet gives 3.0 out of 5 and reports more complaints than expected. - NerdWallet: NerdWallet editorial rating 3.0/5 (NerdWallet proprietary editorial score; not a consumer rating average or Spot Score). NerdWallet business-insurance editorial review, updated June 3, 2026. Its 3.0/5 is NerdWallet’s editorial score, not a consumer average or Spot Rating. It reports above-expected commercial-property and general-liability complaints for 2022–2024 and a low J.D. Power result. Period: Page updated June 3, 2026. Checked 2026-09-29. [Liberty Mutual Business Insurance Review 2026: Big Company Dogged by Customer Complaints](https://www.nerdwallet.com/business/insurance/learn/liberty-mutual-business-insurance) - Trustpilot: Trustpilot consumer TrustScore 4.2/5 (Platform aggregate for a mixed Liberty Mutual brand profile; not business-only); 3836 reviews. Company-wide Liberty Mutual Trustpilot profile. Its description highlights auto, home and life insurance; review excerpts are not restricted to commercial buyers or one issuing entity. The displayed score/count are a consumer-review-site aggregate, separate from editorial ratings and survey data. Period: Displayed September 29, 2026; live total changes. Checked 2026-09-29. [Liberty Mutual Reviews](https://www.trustpilot.com/review/www.libertymutual.com) Reviewed 2026-09-29. [Read the sourced review](https://spot.insure/insurance-providers/liberty-mutual/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/liberty-mutual-vs-marsh-mclennan-agency/professional-errors-omissions.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)