AIG vs Markel: Professional Liability / E&O Insurance

A small business with up to $5 million in revenue will find Markel Insurance describing miscellaneous E&O with coverage up to $2 million; AIG instead markets customizable E&O to public and private service providers.

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 Markel Insurance Professional Liability (E&O) Insurance?

Appetite and Application

AIG describes a broad service-provider audience and says the policy can be customized, without confirming every profession. Markel publishes target classes for professional liability and an application route, giving buyers specific appetite checkpoints. If your occupation is among Markel’s classes, ask whether the particular service is accepted; if not, AIG still needs to review the full work description. [1] [4]

Limits and Policy Scope

AIG describes intended protection for negligent professional services and third-party economic loss but gives no standard limit in its reviewed record. Markel publishes limit information for its professional-liability offering. Compare the quote’s limit basis, retention and defense-cost treatment with the allegation scope in each form; published capacity does not guarantee an individual quote. [1] [4]

What Should You Confirm in AIG and Markel Insurance Professional Liability (E&O) Insurance Quotes?

  • Ask AIG for quoted limits, retention and the covered-services wording. [1]
  • Ask Markel whether your class qualifies and whether its published limit maximum is available for your requested coverage. [4]

AIG describes entity E&O for negligent professional services; Markel publishes professional-liability coverage, appetite, limits and application information for its target businesses.

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
    ProBiz | Professional Liability Coverage

    Markel · Miscellaneous E&O; types of covered professional-service errors; ProBiz target classes and process. · accessed 2026-09-30

  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

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 ↗

Markel Insurance

  • role: Markel describes offering professional errors omissions for the audience stated on the cited product page. professional errors omissions marketed by markel; scope is limited to the cited official product overview and described audience. This is not a policy form or a universal eligibility statement.company-reportedSource ↗
  • eligibility: Small businesses in ProBiz's targeted industries; source describes businesses up to $5 million revenue for the miscellaneous E&O product. professional errors omissions marketed by markel; scope is limited to the cited official product overview and described audience. This is not a policy form or a universal eligibility statement.company-reportedSource ↗
  • coverage: The cited product page describes miscellaneous E&O for covered claims arising from professional services, with the page describing separate E&O and management-liability products. Marketing description only; actual coverage, exclusions, conditions, limits, and availability depend on the issued policy and jurisdiction. professional errors omissions marketed by markel; scope is limited to the cited official product overview and described audience. This is not a policy form or a universal eligibility statement.company-reportedSource ↗
  • application: The page invites prospective customers or brokers to contact Markel or the named underwriting team. The page does not establish a quote, bind, or coverage-effective timeline. professional errors omissions marketed by markel; scope is limited to the cited official product overview and described audience. This is not a policy form or a universal eligibility statement.company-reportedSource ↗
  • limits: For its miscellaneous E&O product, Markel states coverage up to $2 million; this is a product-page maximum, not a promise that every applicant or quote receives that amount. Markel ProBiz miscellaneous E&O marketing page; class, underwriting, policy terms, and actual quoted limit control.company-reportedSource ↗

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