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.
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. 1,2,3,4
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. 7,8,9,10
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. 14,15,16,17
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 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
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. 13Company-reported. 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 6
Starting the Process
Vouch routes buyers to an online "Get Started" application on its own site. 11 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
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
- Ask Marsh which insurer it intends to place your policy with, since its pages don't name one. 5
- If your business doesn't fit Vouch's listed professional-services segments, ask whether it still places E&O for your industry. 11
- Neither page publishes limits or retentions; request both in writing. 11 12 5
Offering Details
Marsh vs Vouch Professional Liability (E&O) Insurance: documented features by provider
| 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. 5,6Company-reported. 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. 11,12Company-reported. 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. 5,6Not publicly disclosed. 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. 13Company-reported. 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. 5Company-reported. 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. 11Company-reported. 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. 5Company-reported. 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. 12Company-reported. 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. 11,12Not publicly disclosed. 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. 5Company-reported. 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. 12,11Company-reported. Corix product page and Vouch site navigation. |
Full Comparison
More Marsh vs Vouch Comparisons
Other Professional Liability (E&O) Insurance Comparisons
Sources
Marsh
- Marsh | Leader in risk, strategy, people, and investments. 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.
- Compensation guide for US clients. 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.
- Marsh McLennan Agency (MMA). Marsh; Middle-market US organizations; wholly-owned subsidiary; business insurance, employee health and benefits, retirement, private client. Accessed 2026-09-16.
- Technology | Insurance Broking & Risk Management. Marsh; Opening Technology Practice description; practice links including data center insurance, fintech and Stratus; Talk to us. Accessed 2026-09-16.
- Professional liability. 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.
- Expert Executive and Professional Liability Insurance. 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
- Vouch Homepage. Vouch; Hero identifying Vouch as an insurance broker; Industries; Services; footer identifying Vouch Specialty and qualifying product availability. Accessed 2026-09-15.
- Start a Vouch Application. 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.
- Carrier Options in One Place. Vouch; 26 November 2025: Choice Without the Chaos; Clarity That Builds Confidence; One Relationship, Many Solutions; final producer/underwriting disclosure. Accessed 2026-09-15.
- Contract Requirement Review. Vouch; Coverage that keeps your deals moving; Tailored to your contract; Effortless Experience (reviews and COIs). Accessed 2026-09-15.
- Insurance for Professional Services Firms. 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.
- 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.
- 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
- FAQ: Professional liability insurance. 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.
- 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.
- Get business insurance. U.S. Small Business Administration; Six common types of business insurance table. Accessed 2026-09-16.
- Professional Liability – US Direct Errors and Omissions Insurance. 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.
