Aon vs Pie Insurance: Professional Liability / E&O Insurance

Pie Insurance helps small businesses start an E&O quote through its website as an intermediary with carrier partners; Aon focuses on law, accounting and consulting firms as a global broker and adviser.

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

Aon: professional liability as addressing professional-services firms’ liability exposure and says it tailors coverage structures to a firm’s needs. It identifies E&O as a commonly used name for professional-liability insurance; actual policy terms are not stated. Pie Insurance: pie describes errors and omissions insurance, also called professional liability insurance, as covering legal fees, costs, and damages for claims that a business's advice or services caused harm, including claims of inaccurate advice, misrepresentation, negligence, or violation of good faith, but says it does not protect against criminal prosecution.

Sources reviewed

  1. 01
    Professional Services Practice

    Aon · Named professional-services audiences and global advisory role, lines 125–128; line offerings and explanations lines 131–190; contact link lines 120–122. Global practice page; no U.S. state or account-specific placement schedule. · 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
    Errors and Omissions Insurance

    Pie Insurance · Errors and Omissions Insurance hero: also known as professional liability insurance...; professions that often carry E&O; What's typically covered by errors and omissions insurance? Inaccurate advice, Misrepresentation, Negligence, Violation of good faith; Make sure you're covered: Start now · 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

What Are the Key Differences Between Aon and Pie Insurance Professional Liability (E&O) Insurance?

Professional firm or small-business placement

Aon names law, accounting and consulting firms for its professional-services practice; Pie says it helps small businesses find E&O through carrier partners. A professional firm can ask Aon about tailored advice, while a small business can ask Pie which partner will quote its work. [1] [4]

Claims described by Pie

Pie lists legal fees, costs and damages for harmful advice or services, including negligence and misrepresentation, while Aon describes professional-liability structures without enumerating allegations. Compare the actual insuring agreement against client claims your work could trigger. [1] [4]

Eligibility and application

Pie names architects, contractors, attorneys, engineers, consultants, marketers, counselors and real-estate agents as common E&O buyers; Aon names law, accounting and consulting firms. Pie directs buyers to start a quote online, while Aon describes a professional-services advisory practice. Confirm underwriting appetite and how the quote begins. [1] [4]

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

  • Ask Aon to confirm the quoted policy form, retroactive date and covered allegations; its offering says professional liability as addressing professional-services firms’ liability exposure and says it tailors coverage structures to a firm’s needs. It identifies E&O as a commonly used name for professional-liability insurance; actual policy terms are not stated. [1]
  • Ask Pie Insurance to confirm the quoted policy form, retroactive date and covered allegations; its offering says pie describes errors and omissions insurance, also called professional liability insurance, as covering legal fees, costs, and damages for claims that a business's advice or services caused harm, including claims of inaccurate advice, misrepresentation, negligence, or violation of good faith, but says it does not protect against criminal prosecution. [4]

Areas of coverage

Aon

  • role: Aon presents Professional Liability / E&O as a line its Professional Services Practice helps arrange or advise on for professional-service firms. Aon is describing a global brokerage and advisory service, not issuing the underlying policy. The producing legal entity and carrier for any particular placement are not named on this page. Aon’s global professional-services practice page. This establishes a marketed brokerage/advisory offering, not policy issuance or account-specific placement.company-reportedSource ↗
  • eligibility: Aon identifies law, accounting and consulting firms as the audience for its global Professional Services Practice. That audience scope does not establish eligibility for every firm or other business. Audience described for Aon’s global professional-services practice. It does not establish U.S. state availability or underwriting eligibility for a placement.company-reportedSource ↗
  • coverage: Aon describes professional liability as addressing professional-services firms’ liability exposure and says it tailors coverage structures to a firm’s needs. It identifies E&O as a commonly used name for professional-liability insurance; actual policy terms are not stated. Aon’s marketing description of the brokerage/coverage area. The page is not the insurer’s policy form and does not establish an insured's entitlement to coverage.company-reportedSource ↗
  • services: Aon says its professional-services advisors use industry knowledge, insights, data and tools to support risk-management and human-capital decisions. This is a company-described advisory service, not a claim outcome or policy benefit. Company-reported advisory services on Aon’s global practice page; account-specific service scope is not stated.company-reportedSource ↗
  • insurer: The reviewed practice page does not name the insurer or producing legal entity for a specific placement. Ask for both on the quote and binder. Aon’s global practice page as reviewed 2026-09-30; no state-specific placement schedule or buyer quote was reviewed. This does not establish that Aon cannot arrange a placement.not-foundSource ↗
  • limits: The reviewed page does not state a buyer-specific limit, retention, deductible or other placement terms. Confirm these in the quote, bond or issued policy. Aon’s global practice page as reviewed 2026-09-30; no quote, bond form or issued policy was reviewed.not-disclosedSource ↗

Pie Insurance

  • role: Pie says it helps small businesses get the best errors and omissions coverage 'from our insurance carrier partners,' identifying itself as an intermediary rather than the underwriter for this line. Errors and Omissions product page as read on 2026-09-23.company-reportedSource ↗
  • insurer: The reviewed page refers only to 'our insurance carrier partners' and does not name a specific insurer for Pie's errors and omissions product. Errors and Omissions product page as read on 2026-09-23.not-disclosedSource ↗
  • coverage: Pie describes errors and omissions insurance, also called professional liability insurance, as covering legal fees, costs, and damages for claims that a business's advice or services caused harm, including claims of inaccurate advice, misrepresentation, negligence, or violation of good faith, but says it does not protect against criminal prosecution. Errors and Omissions product page as read on 2026-09-23; the issued policy controls actual insuring agreements and exclusions.company-reportedSource ↗
  • eligibility: Pie names architects, contractors, attorneys, engineers, consultants, marketers, counselors, and real estate agents as professionals who often carry E&O insurance, and notes some states or clients require proof of coverage. Errors and Omissions product page as read on 2026-09-23; not an exhaustive eligibility list.company-reportedSource ↗
  • application: Pie directs errors and omissions buyers to contact the company to start a quote through its website. Errors and Omissions product page as read on 2026-09-23.company-reportedSource ↗
  • limits: The reviewed page does not publish limits, deductibles, or premium ranges for errors and omissions coverage. Errors and Omissions product page as read on 2026-09-23.not-disclosedSource ↗

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