AIG vs Zurich: Professional Liability / E&O Insurance

Zurich U.S. offers Pro Plus, a suite of coverages in one policy, with E&O available in most states for technology, manufacturing and third-party service providers; AIG markets customizable E&O.

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 AIG and Zurich U.S. Professional Liability (E&O) Insurance?

Coverage and Policy Structure

AIG describes protection for negligence allegations tied to professional services, including third-party economic loss. Zurich describes E&O for negligence, mistakes and failure to deliver promised services; its Pro Plus suite combines modular coverages in one policy, with admitted E&O available in most states. A buyer should compare the service definitions and whether other modules share limits in the proposed forms. [1] [6]

Claims Support

AIG says in-house claims professionals and outside experts work with clients through the claims process. Zurich describes E&O claims specialists and underwriters who review claims under policy terms and coordinate with legal counsel. Ask who will be your contact, how counsel is selected and whether defense expenses reduce the limit. [1] [6]

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

  • Ask AIG how defense costs, state availability and claims reporting apply to your policy. [1]
  • Ask Zurich which Pro Plus modules are selected and whether E&O shares an aggregate with them. [6]

AIG describes E&O for negligent professional services; Zurich describes defense and indemnity for service failures and offers modular Pro Plus coverage in most states.

Sources reviewed

  1. 01
    Professional Liability Insurance

    AIG US · ‘AIG Professional Liability Solutions,’ lines 327–334; claims expertise lines 273–279; broker contact lines 385–389; general policy-language caveat in legal footer lines 485–489. · accessed 2026-09-30

  2. 02
    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

  3. 03
    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

  4. 04
    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

  5. 05
    Get business insurance

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

  6. 06
    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

AIG

  • role: AIG markets customizable entity-based professional errors-and-omissions policies for public and private service providers. AIG is the marketing name; the page’s legal footer says products are written or provided by subsidiaries or affiliates, without naming the issuer for a buyer’s policy. AIG’s U.S. Professional Liability page. The page describes the marketed product family, not the legal insurer on an individual quote or policy.company-reportedSource ↗
  • eligibility: AIG says its specialty professional-liability offering is for service providers and can be customized for a company’s professional services. Its examples include public and private service providers; this does not state that every profession or applicant qualifies. Company-described target customer and customization statement. The reviewed page does not provide a complete class appetite or state availability list.company-reportedSource ↗
  • coverage: AIG describes coverage for claims alleging negligence in professional services rendered to others, including claims for third-party economic loss. This is a description of the product’s intended subject; covered claims, definitions, exclusions and conditions depend on the issued policy. AIG’s marketing description of specialty professional E&O; no policy form or endorsement was reviewed.company-reportedSource ↗
  • services: AIG says it uses in-house claims professionals and third-party experts, collaborates with clients through the claims process, and uses claims data to help clients evaluate and mitigate loss. These are company-reported service descriptions, not a claim outcome guarantee. General professional-liability claims services described by AIG. The page does not state account-specific service standards or identify the administrator for a particular policy.company-reportedSource ↗
  • limits: The reviewed page does not state standard limits, retentions or deductibles for this offering. Confirm the amounts and policy conditions in the quote and issued form. AIG’s U.S. Professional Liability page reviewed 2026-09-30; no buyer-specific quote or policy was reviewed.not-disclosedSource ↗

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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