---
title: "Marsh vs Vouch Professional Liability (E&O) Insurance"
description: "Vouch's program partner names two insurers for a professional-services niche; Marsh's broader enterprise practice doesn't name a carrier."
canonical: "https://spot.insure/compare/marsh-vs-vouch/professional-errors-omissions"
page-type: "line-comparison"
updated-at: "2026-09-23"
---

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# Marsh vs Vouch Professional Liability (E&O) Insurance

Vouch's program partner names two insurers for a professional-services niche; Marsh's broader enterprise practice doesn't name a carrier.

## Research Scope and Use

Use this comparison to evaluate Marsh and Vouch 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.

## Summary

Vouch places E&O for professional-services segments like accounting and consulting, with program partner Corix naming State National or United Specialty as insurer, while Marsh's professional liability practice serves enterprise industries without naming a carrier. [13](https://www.corixinsurance.com/legal/disclosures "Legal Disclosures") [5](https://www.marsh.com/en/services/financial-professional-liability/expertise/professional-liability.html "Professional liability")

## What Is Marsh?

Marsh is a global insurance broker and risk advisor. In the United States it places coverage through core Marsh teams and through Marsh McLennan Agency for many middle-market buyers, including technology, cyber, property, casualty and benefits programs. [1](https://www.marsh.com/en/home.html "Marsh | Leader in risk, strategy, people, and investments") [2](https://www.marsh.com/content/dam/marsh/Documents/PDF/US-en/us-client-compensation-guide.pdf "Compensation guide for US clients") [3](https://www.marsh.com/en/services/marsh-mclennan-agency.html "Marsh McLennan Agency (MMA)") [4](https://www.marsh.com/en/industries/technology.html "Technology | Insurance Broking & Risk Management")

[Marsh profile](https://spot.insure/insurance-providers/marsh)

## What Is Vouch Insurance?

Vouch is a business insurance broker and risk advisor for startups and growing companies. Buyers can apply online and work with advisors to arrange coverage, review contract requirements and manage insurance across carriers. [7](https://www.vouch.us/ "Vouch Homepage") [8](https://apply.vouch.us/ "Start a Vouch Application") [9](https://www.vouch.us/blog/how-having-carrier-options-in-one-place-helps-businesses-choose-smarter-coverage "Carrier Options in One Place") [10](https://www.vouch.us/services/contract-requirement-review "Contract Requirement Review")

[Vouch profile](https://spot.insure/insurance-providers/vouch)

## What Is Professional Errors and Omissions (E&O) Insurance?

Professional errors and omissions (E&O) insurance, also called professional liability insurance, addresses claims that professional services or advice caused a client financial loss. What's covered depends on the services actually scheduled in the policy, not the product label alone. [14](https://www.tdi.texas.gov/commercial/pl-faq.html "FAQ: Professional liability insurance") [15](https://www.iii.org/article/professional-liability-insurance "Professional liability insurance") [16](https://www.sba.gov/counseling/launch-your-business/#business-insurance "Get business insurance") [17](https://www.hiscox.com/documents/pl-sample-policy-wording.pdf "Professional Liability – US Direct Errors and Omissions Insurance")

## Key Differences in Professional Liability (E&O) Insurance

### Niche Segments Versus Enterprise Verticals

Vouch names a specific set of professional-services segments: accounting and finance, architecture/engineering/construction, IT consulting, management consulting, and marketing and creative agencies. [11](https://www.vouch.us/professional-services "Insurance for Professional Services Firms") Marsh instead names enterprise verticals: banking and broker/dealers, insurance companies and asset managers, venture capital, accountants, attorneys, architects and engineers, media and entertainment, technology, and healthcare and biotechnology. [5](https://www.marsh.com/en/services/financial-professional-liability/expertise/professional-liability.html "Professional liability")

### Naming an Insurer

One of Vouch's named program partners discloses an insurer for its E&O product specifically, a level of disclosure Marsh's pages don't reach:

Corix's disclosures say its proprietary products, including its E&O line, are issued by State National Insurance Company or United Specialty Insurance Company. That names an insurer for Corix-branded E&O products specifically, not for every Vouch professional-liability placement. [13](https://www.corixinsurance.com/legal/disclosures "Legal Disclosures") (Evidence: Company-reported; scope: Corix disclosures page..)

Marsh's professional liability and MMA executive-and-professional-liability pages do not name a specific insurer for the coverage they place. [5](https://www.marsh.com/en/services/financial-professional-liability/expertise/professional-liability.html "Professional liability") [6](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Expert Executive and Professional Liability Insurance")

### Starting the Process

Vouch routes buyers to an online "Get Started" application on its own site. [11](https://www.vouch.us/professional-services "Insurance for Professional Services Firms") Marsh's page instead describes its specialist team of attorneys, economists and actuaries assessing exposure, reflecting a consultative brokerage process rather than a self-service online start. [5](https://www.marsh.com/en/services/financial-professional-liability/expertise/professional-liability.html "Professional liability")

## What to Confirm in Professional Liability (E&O) Insurance Quotes

- Ask Vouch whether your placement would go through Corix specifically, since the named insurers apply to Corix-branded E&O products. [13](https://www.corixinsurance.com/legal/disclosures "Legal Disclosures")
- Ask Marsh which insurer it intends to place your policy with, since its pages don't name one. [5](https://www.marsh.com/en/services/financial-professional-liability/expertise/professional-liability.html "Professional liability")
- If your business doesn't fit Vouch's listed professional-services segments, ask whether it still places E&O for your industry. [11](https://www.vouch.us/professional-services "Insurance for Professional Services Firms")
- Neither page publishes limits or retentions; request both in writing. [11](https://www.vouch.us/professional-services "Insurance for Professional Services Firms") [12](https://www.corixinsurance.com/products/cyber-and-errors-omissions "Cyber and Errors & Omissions") [5](https://www.marsh.com/en/services/financial-professional-liability/expertise/professional-liability.html "Professional liability")

## Offering Details

| Criteria | Marsh Professional Liability Insurance Brokerage | Vouch Errors & Omissions Insurance |
| --- | --- | --- |
| Role in This Line | Marsh's financial and professional liability practice places professional liability (errors and omissions) insurance; MMA also places E&O coverage within its executive and professional liability practice for middle-market clients. [5](https://www.marsh.com/en/services/financial-professional-liability/expertise/professional-liability.html "Professional liability") [6](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Expert Executive and Professional Liability Insurance") (Evidence: Company-reported; scope: Marsh professional liability page and MMA executive and professional liability page..) | Vouch is a broker, not an insurer, for professional errors & omissions coverage. It lists Errors & Omissions among the core coverages it places for professional-services clients, and one of its named program partners, Corix, has a dedicated E&O product. [11](https://www.vouch.us/professional-services "Insurance for Professional Services Firms") [12](https://www.corixinsurance.com/products/cyber-and-errors-omissions "Cyber and Errors & Omissions") (Evidence: Company-reported; scope: Vouch's Professional Services page and Corix's cyber/E&O product page..) |
| Issuing Insurer | The reviewed pages do not name a specific professional liability insurer. [5](https://www.marsh.com/en/services/financial-professional-liability/expertise/professional-liability.html "Professional liability") [6](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Expert Executive and Professional Liability Insurance") (Evidence: Not publicly disclosed; scope: Marsh professional liability page and MMA executive and professional liability page as read on 2026-09-23..) | Corix's disclosures say its proprietary products, including its E&O line, are issued by State National Insurance Company or United Specialty Insurance Company. That names an insurer for Corix-branded E&O products specifically, not for every Vouch professional-liability placement. [13](https://www.corixinsurance.com/legal/disclosures "Legal Disclosures") (Evidence: Company-reported; scope: Corix disclosures page..) |
| Who It’s For | Marsh names specialized industries its professional liability experts serve, including banking and broker/dealers, insurance companies and asset managers, merchant banking and venture capital, accountants, attorneys, architects and engineers, media and entertainment, technology, and healthcare and biotechnology. [5](https://www.marsh.com/en/services/financial-professional-liability/expertise/professional-liability.html "Professional liability") (Evidence: Company-reported; scope: Marsh professional liability page, What We Offer section..) | Vouch markets professional E&O to accounting and finance, architecture/engineering/construction, IT consulting, management consulting, and marketing and creative agency firms. [11](https://www.vouch.us/professional-services "Insurance for Professional Services Firms") (Evidence: Company-reported; scope: Vouch's Professional Services page; not an underwriting appetite guarantee for any specific applicant..) |
| Coverage Features | Marsh says professional liability coverage can protect a company against liability and defense costs from a claim alleging an error, omission or negligence in performing professional services, and that many policies also cover privacy violations and computer security breaches. [5](https://www.marsh.com/en/services/financial-professional-liability/expertise/professional-liability.html "Professional liability") (Evidence: Company-reported; scope: Marsh professional liability page opening description; illustrative policy description, not a specific policy form..) | Corix describes E&O as protecting a business against claims of negligence, mistakes or inadequate work that cause a client financial loss in the provision of professional services, including legal defense costs and any damages awarded, even when the claim is ultimately groundless. [12](https://www.corixinsurance.com/products/cyber-and-errors-omissions "Cyber and Errors & Omissions") (Evidence: Company-reported; scope: Corix's cyber and E&O product page; actual insuring agreements and exclusions are set by the issued policy..) |
| Limits and Retentions | Not described in the reviewed sources. | Neither the Vouch nor Corix pages publish E&O policy limits or retentions. [11](https://www.vouch.us/professional-services "Insurance for Professional Services Firms") [12](https://www.corixinsurance.com/products/cyber-and-errors-omissions "Cyber and Errors & Omissions") (Evidence: Not publicly disclosed; scope: Pages checked on 2026-09-23..) |
| Risk Services | Marsh says it employs attorneys, economists and actuaries alongside coverage specialists to assess a client's professional liability exposure from multiple angles, given the complexity of these risks. [5](https://www.marsh.com/en/services/financial-professional-liability/expertise/professional-liability.html "Professional liability") (Evidence: Company-reported; scope: Marsh professional liability page..) | Not described in the reviewed sources. |
| How to Apply | Not described in the reviewed sources. | Corix's E&O product page offers a downloadable application and directs brokers to start an appointment process; Vouch's own site routes prospective buyers to its online "Get Started" application flow. [12](https://www.corixinsurance.com/products/cyber-and-errors-omissions "Cyber and Errors & Omissions") [11](https://www.vouch.us/professional-services "Insurance for Professional Services Firms") (Evidence: Company-reported; scope: Corix product page and Vouch site navigation..) |

## Full Comparison

- [Marsh vs Vouch](https://spot.insure/compare/marsh-vs-vouch): 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 E&O insurance addresses claims that a mistake in your advice or services caused a client financial loss.
- [Marsh vs Vouch Commercial Property Insurance](https://spot.insure/compare/marsh-vs-vouch/commercial-property)
- [Marsh vs Vouch Cyber Insurance](https://spot.insure/compare/marsh-vs-vouch/cyber)
- [Marsh vs Vouch D&O Insurance](https://spot.insure/compare/marsh-vs-vouch/directors-officers)
- [Marsh vs Vouch Tech E&O Insurance](https://spot.insure/compare/marsh-vs-vouch/technology-errors-omissions)
- [Alliance Risk vs Marsh Professional Liability (E&O) Insurance](https://spot.insure/compare/alliance-risk-vs-marsh/professional-errors-omissions)
- [Alliance Risk vs Vouch Professional Liability (E&O) Insurance](https://spot.insure/compare/alliance-risk-vs-vouch/professional-errors-omissions)
- [At-Bay vs Marsh Professional Liability (E&O) Insurance](https://spot.insure/compare/at-bay-vs-marsh/professional-errors-omissions)
- [At-Bay vs Vouch Professional Liability (E&O) Insurance](https://spot.insure/compare/at-bay-vs-vouch/professional-errors-omissions)
- [Beazley vs Marsh Professional Liability (E&O) Insurance](https://spot.insure/compare/beazley-vs-marsh/professional-errors-omissions)
- [Beazley vs Vouch Professional Liability (E&O) Insurance](https://spot.insure/compare/beazley-vs-vouch/professional-errors-omissions)

## Sources

### Marsh

1. [Marsh | Leader in risk, strategy, people, and investments](https://www.marsh.com/en/home.html). Marsh; Hero and capability tiles; FAQ: What does Marsh do?; industries served; Is Marsh the same as Marsh McLennan? January 2026 brand change. Accessed 2026-09-16.
2. [Compensation guide for US clients](https://www.marsh.com/content/dam/marsh/Documents/PDF/US-en/us-client-compensation-guide.pdf). Marsh; US broking segments; broker role; retail commissions, client fees, wholesale, insurer consulting, contingent and supplemental commissions; Marsh LLC and Marsh USA LLC; page 3: broker role and Marsh & McLennan Agency segment; page 7: copyright © 2024 Marsh LLC. Accessed 2026-09-16.
3. [Marsh McLennan Agency (MMA)](https://www.marsh.com/en/services/marsh-mclennan-agency.html). Marsh; Middle-market US organizations; wholly-owned subsidiary; business insurance, employee health and benefits, retirement, private client. Accessed 2026-09-16.
4. [Technology | Insurance Broking & Risk Management](https://www.marsh.com/en/industries/technology.html). Marsh; Opening Technology Practice description; practice links including data center insurance, fintech and Stratus; Talk to us. Accessed 2026-09-16.
5. [Professional liability](https://www.marsh.com/en/services/financial-professional-liability/expertise/professional-liability.html). Marsh; Opening description; What We Offer: specialized industries served (banking, insurance/asset managers, merchant banking/venture capital, accountants/attorneys/architects/engineers, media/communications/entertainment, technology, healthcare/biotechnology). Accessed 2026-09-23.
6. [Expert Executive and Professional Liability Insurance](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html). Marsh McLennan Agency; Our policies include D&O, E&O, EPL, commercial crime/fidelity, network security privacy risk/cyber, fiduciary, media liability, IP, architects and engineers, lawyers professional, and kidnap and ransom. Accessed 2026-09-23.

### Vouch

7. [Vouch Homepage](https://www.vouch.us/). Vouch; Hero identifying Vouch as an insurance broker; Industries; Services; footer identifying Vouch Specialty and qualifying product availability. Accessed 2026-09-15.
8. [Start a Vouch Application](https://apply.vouch.us/). Vouch; Public first screen: legal business name, website/no-website option, address and location type, applicant role and contact fields, consent, and existing-customer sign-in. Accessed 2026-09-15.
9. [Carrier Options in One Place](https://www.vouch.us/blog/how-having-carrier-options-in-one-place-helps-businesses-choose-smarter-coverage). Vouch; 26 November 2025: Choice Without the Chaos; Clarity That Builds Confidence; One Relationship, Many Solutions; final producer/underwriting disclosure. Accessed 2026-09-15.
10. [Contract Requirement Review](https://www.vouch.us/services/contract-requirement-review). Vouch; Coverage that keeps your deals moving; Tailored to your contract; Effortless Experience (reviews and COIs). Accessed 2026-09-15.
11. [Insurance for Professional Services Firms](https://www.vouch.us/professional-services). Vouch; Expertise across professional services: Accounting & Finance, Architecture/Engineering/Construction, IT Consulting, Management Consulting, Marketing & Creative Agencies; Core coverages for Professional Services: Errors & Omissions, General Liability, Cyber Liability, Employment Practices Liability, Workers' Compensation. Accessed 2026-09-23.
12. [Cyber and Errors & Omissions](https://www.corixinsurance.com/products/cyber-and-errors-omissions). Corix Insurance; Errors & Omissions insurance provided by Corix helps protect businesses for claims of negligence, mistakes, or inadequate work that causes a financial loss to clients, in the provision of professional services. It includes legal defense costs and damages awarded, even when the claim is groundless.. Accessed 2026-09-23.
13. [Legal Disclosures](https://www.corixinsurance.com/legal/disclosures). Corix Insurance; Policies are issued by State National Insurance Company (NAIC# 12831) or United Specialty Insurance Company (NAIC#12537).. Accessed 2026-09-23.

### Professional Liability (E&O) Insurance Guide

14. [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.
15. [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.
16. [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.
17. [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 2026-09-23. 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.

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