Marsh vs Zurich: Professional Liability / E&O Insurance

Zurich U.S. aims its Pro Plus suite of coverages in one policy at technology, manufacturing and third-party service providers, with E&O available in most states. Marsh is a broker for specialized sectors like banking and healthcare, with attorneys and actuaries advising.

Kearny Risk organizes these comparisons for firms whose advice, content or technology creates professional exposures.Research updated 2026-09-30

What Are the Key Differences Between Marsh and Zurich U.S. Professional Liability (E&O) Insurance?

Specialist Risk Review

Marsh says its professional-liability practice pairs coverage specialists with attorneys, economists, and actuaries to assess complex exposures, and names fields such as banking, venture capital, law, engineering, technology, media, and healthcare. Zurich names technology, manufacturing, and third-party service providers as E&O classes. If your work spans regulated or technical services, ask which expertise and form apply to that exact operation. [3] [7]

Privacy and Claim Handling

Marsh says many E&O policies it places also cover privacy violations and computer-security breaches. Zurich describes dedicated E&O claims specialists and underwriters who coordinate legal counsel. A data event tied to professional services may engage both issues, so ask Marsh for its policy wording and Zurich how its claims team handles overlapping allegations. [3] [7]

What Should You Confirm in Marsh and Zurich U.S. Professional Liability (E&O) Insurance Quotes?

  • Ask Marsh whether privacy and computer-security events are included in the proposed form and which carrier issues it; ask Zurich for the applicable class, limit, and claim-notice process. [3] [7]

Marsh says its E&O team uses attorneys, economists, actuaries, and coverage specialists to assess exposures across specialist sectors. Zurich describes modular E&O and dedicated claims professionals.

Sources reviewed

  1. 01
    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

  2. 02
    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

  3. 03
    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

  4. 04
    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

  5. 05
    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

  6. 06
    Get business insurance

    U.S. Small Business Administration · Six common types of business insurance table · accessed 2026-09-16

  7. 07
    Errors and Omissions Insurance – E&O | Zurich Insurance

    Zurich U.S. · Pro Plus coverage, targeted classes, policy structure, claims and underwriting · accessed 2026-09-28

Areas of coverage

Marsh

  • role: 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. Marsh professional liability page and MMA executive and professional liability page.company-reportedSource ↗Source ↗
  • coverage: 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. Marsh professional liability page opening description; illustrative policy description, not a specific policy form.company-reportedSource ↗
  • eligibility: 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. Marsh professional liability page, What We Offer section.company-reportedSource ↗
  • insurer: The reviewed pages do not name a specific professional liability insurer. Marsh professional liability page and MMA executive and professional liability page as read on 2026-09-23.not-disclosedSource ↗Source ↗
  • 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. Marsh professional liability page.company-reportedSource ↗

Zurich U.S.

  • coverage: Zurich says E&O can address professional-service negligence, mistakes or failure to deliver promised services, including defense costs, court fees, settlements and judgments. Zurich U.S. brand; exact underwriting company may vary by policy and state; professional errors and omissions; United States. Company-reported product description; actual coverage, underwriting, limits and state availability are governed by issued policy terms.company-reportedSource ↗
  • eligibility: Zurich names technology, manufacturing and third-party service providers among targeted E&O classes. Zurich U.S. brand; exact underwriting company may vary by policy and state; professional errors and omissions; United States. Company-reported product description; actual coverage, underwriting, limits and state availability are governed by issued policy terms.company-reportedSource ↗
  • coverage: Zurich’s Pro Plus is a modular suite of coverages in one policy; admitted E&O coverage is available in most states. Zurich U.S. brand; exact underwriting company may vary by policy and state; professional errors and omissions; United States. Company-reported product description; actual coverage, underwriting, limits and state availability are governed by issued policy terms.company-reportedSource ↗
  • claims: Zurich describes E&O claims specialists and underwriters and says claims are reviewed under policy terms with legal counsel coordination. Zurich U.S. brand; exact underwriting company may vary by policy and state; professional errors and omissions; United States. Company-reported product description; actual coverage, underwriting, limits and state availability are governed by issued policy terms.company-reportedSource ↗

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