---
title: "Marsh vs Vouch: Professional Liability (E&O) Insurance"
description: "Vouch lists E&O segments including accounting, AEC, IT and marketing and Corix names possible insurers; Marsh serves banking, finance, technology and healthcare sectors without naming a carrier."
canonical: "https://spot.insure/compare/marsh-vs-vouch/professional-errors-omissions"
page-type: "line-comparison"
updated-at: "2026-09-25"
comparison-pair: "marsh-vs-vouch"
provider-a: "marsh"
provider-b: "vouch"
coverage-line: "professional-errors-omissions"
---

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[Human-readable page](https://spot.insure/compare/marsh-vs-vouch/professional-errors-omissions)

## Agent Guide

**What this page is:** Focused comparison of Marsh and Vouch 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 Marsh versus Vouch. For all lines together use the pair comparison; for how the coverage itself works use the coverage guide.

**Questions this page answers:**
- Marsh vs Vouch for Professional Liability (E&O) Insurance: how do they differ?
- Which is better for Professional Liability (E&O) Insurance, Marsh or Vouch?
- What does Marsh or Vouch publish about Professional Liability (E&O) Insurance (limits, eligibility, claims, add-ons)?

**Key facts:**
- Line: Professional Liability (E&O) Insurance. Providers: Marsh and Vouch.
- Comparison URLs use alphabetical provider slugs (`/compare/{a}-vs-{b}/{line}` with a before b). A reversed pair redirects permanently to the alphabetical one.

**Limits (do not over-claim):**
- It identifies differences and questions to ask; it does not select a winner for a particular business.
- 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; last updated 2026-09-25.

**Related pages:**
- [Marsh vs Vouch](https://spot.insure/compare/marsh-vs-vouch) — all coverage lines for this pair
- [Professional Liability (E&O) Insurance guide](https://spot.insure/coverage/professional-errors-omissions) — how this coverage works
- [Marsh profile](https://spot.insure/insurance-providers/marsh) — provider profile
- [Vouch profile](https://spot.insure/insurance-providers/vouch) — provider profile

# Marsh vs Vouch: How Do They Compare for Professional Liability (E&O) Insurance?

Vouch, a broker and not an insurer, aims at accounting, engineering, IT consulting and agency firms with an online Get Started flow. Marsh places E&O for specialized sectors like banking and asset managers, with attorneys and actuaries advising.

Vouch lists E&O niches such as accounting, AEC and consulting and names Corix insurers; Marsh serves enterprise sectors without naming a carrier.

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

Vouch lists E&O segments including accounting, AEC, IT and marketing and Corix names possible insurers; Marsh serves banking, finance, technology and healthcare sectors without naming a carrier. [5](https://www.corixinsurance.com/legal/disclosures "Legal Disclosures") [1](https://www.marsh.com/en/services/financial-professional-liability/expertise/professional-liability.html "Professional liability")

## What Are the Key Differences Between Marsh and Vouch Professional Liability (E&O) Insurance?

### Professional Segments vs Enterprise Verticals

Vouch targets accounting and finance, AEC, IT and management consulting, and marketing and creative agencies. [3](https://www.vouch.us/professional-services "Insurance for Professional Services Firms") Marsh names banking, asset management, venture capital, media, technology, healthcare and biotechnology among the sectors it serves. [1](https://www.marsh.com/en/services/financial-professional-liability/expertise/professional-liability.html "Professional liability")

Choose Vouch if your firm fits one of its named professional-service segments; choose Marsh if you operate in one of its enterprise sectors and want specialist risk review. [3](https://www.vouch.us/professional-services "Insurance for Professional Services Firms") [1](https://www.marsh.com/en/services/financial-professional-liability/expertise/professional-liability.html "Professional liability")

### Carrier and Quote Path

Vouch's Corix program names two possible insurers for Corix-branded E&O. [5](https://www.corixinsurance.com/legal/disclosures "Legal Disclosures") Marsh does not name an insurer in advance and describes an attorney, economist and actuary-backed assessment. [1](https://www.marsh.com/en/services/financial-professional-liability/expertise/professional-liability.html "Professional liability") Vouch provides an online Get Started flow, while Marsh's page describes a consultative broker process. [3](https://www.vouch.us/professional-services "Insurance for Professional Services Firms") [1](https://www.marsh.com/en/services/financial-professional-liability/expertise/professional-liability.html "Professional liability")

## What Should You Confirm in Marsh and Vouch Professional Liability (E&O) Insurance Quotes?

- Ask Vouch whether Corix would place your policy and which insurer would issue it. [5](https://www.corixinsurance.com/legal/disclosures "Legal Disclosures")
- Ask Marsh which insurer would issue your policy. [1](https://www.marsh.com/en/services/financial-professional-liability/expertise/professional-liability.html "Professional liability")
- Compare limits, retentions and exclusions in the written quotes. [3](https://www.vouch.us/professional-services "Insurance for Professional Services Firms") [1](https://www.marsh.com/en/services/financial-professional-liability/expertise/professional-liability.html "Professional liability")

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

| Criteria | Marsh Professional Liability Insurance Brokerage | Vouch Errors & Omissions Insurance |
| --- | --- | --- |
| 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. [1](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. [3](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. [1](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. [4](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..) |
| 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. [1](https://www.marsh.com/en/services/financial-professional-liability/expertise/professional-liability.html "Professional liability") [2](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. [3](https://www.vouch.us/professional-services "Insurance for Professional Services Firms") [4](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..) |

## About Marsh and Vouch and Professional Liability (E&O) Insurance

- [Marsh company profile](https://spot.insure/insurance-providers/marsh) · [Marsh customer reviews](https://spot.insure/insurance-providers/marsh/reviews)
- [Vouch company profile](https://spot.insure/insurance-providers/vouch) · [Vouch customer reviews](https://spot.insure/insurance-providers/vouch/reviews)
- [What Is Professional Errors and Omissions (E&O) Insurance?](https://spot.insure/coverage/professional-errors-omissions)

## Related Pages for Marsh vs Vouch Professional Liability (E&O)

- [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 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.
- [Marsh Professional Liability (E&O) Insurance](https://spot.insure/insurance-providers/marsh/professional-errors-omissions)
- [Vouch Professional Liability (E&O) Insurance](https://spot.insure/insurance-providers/vouch/professional-errors-omissions)

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

### Sources About Marsh

1. [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.
2. [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.

### Sources About Vouch

3. [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.
4. [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.
5. [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.

Updated 2026-09-25. 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.

## Agent and Developer Resources

- [Markdown page](https://spot.insure/compare/marsh-vs-vouch/professional-errors-omissions.md)
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- [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)