Marsh vs Simply Business: Professional Liability / E&O Insurance

Marsh places E&O for specialized sectors such as banking and healthcare, with attorneys, economists and actuaries on staff. Simply Business offers an online flow for consultants, IT professionals, real-estate agents and bookkeepers to compare quotes.

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

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 ↗

Simply Business

  • coverage: The page describes protection for claims tied to professional work and lists attorney fees, court costs, settlements and judgments as costs that may be covered; policy wording controls. Company-published professional-errors-omissions information for U.S. small businesses; availability and actual policy terms depend on the insurer, state and buyer.company-reportedSource ↗
  • eligibility: Simply Business lists consultants, IT professionals, real-estate agents and bookkeepers among the business examples for which it can help find E&O coverage. The examples do not guarantee eligibility. Company-published professional-errors-omissions information for U.S. small businesses; availability and actual policy terms depend on the insurer, state and buyer.company-reportedSource ↗
  • application: The company describes an online flow to answer business questions, compare quotes and select a policy. Its Terms say an online quote is not guaranteed and binding requires panel-member approval. Company-published professional-errors-omissions information for U.S. small businesses; availability and actual policy terms depend on the insurer, state and buyer.company-reportedSource ↗Source ↗

What Are the Key Differences Between Marsh and Simply Business Professional Liability (E&O) Insurance?

Complex industry expertise versus listed small-business examples

Marsh names banking, insurance, investment, legal, design, technology and health sectors among the industries its professional-liability experts serve. Simply Business gives consultants, IT professionals, real-estate agents and bookkeepers as examples for E&O, while noting examples do not guarantee eligibility. A business in a regulated or specialized sector should ask Marsh how its practice fits the placement and submit the same detailed operations to Simply Business for an eligibility decision. [3] [5]

Marsh identifies additional allegation types

Marsh says professional-liability coverage can address liability and defense costs for alleged errors, omissions or negligence, and that many policies also cover privacy violations and computer-security breaches. Simply Business describes claims tied to professional work and lists legal costs that may be covered, subject to policy wording; its overview does not specify privacy or security allegations. If client data is part of your service, ask the proposed insurer whether those events fall within E&O or require separate cyber coverage. [3] [5]

Marsh describes a specialist assessment team

Marsh says its practice uses attorneys, economists and actuaries alongside coverage specialists to assess professional-liability exposure. Simply Business presents an online quote comparison process. Buyers with complex financial, contractual or technology exposures can ask how much specialist review each proposed placement includes before choosing a policy. [3] [5]

What Should You Confirm in Marsh and Simply Business Professional Liability (E&O) Insurance Quotes?

  • Ask Marsh and the Simply Business insurer whether the proposed E&O form covers privacy violations and security breaches, and whether cyber coverage is needed separately. [3] [5]
  • For a specialized business, provide the same services and client profile to both; ask Simply Business which panel insurer is offering terms and who reviews the risk. [3] [6]

Marsh brings financial and professional liability specialists to complex placements, while Simply Business provides an online route for small-business quotes.

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
    Professional Liability Insurance Coverage

    Simply Business · Coverage lines 45–100; buyer examples lines 101–158; online quote steps lines 237–260. · accessed 2026-09-29

  6. 06
    Terms of Service

    Simply Business · Dated June 30, 2026; §1 lines 22–28; §8 lines 87–113; §10 lines 143–149; §19 line 211. · accessed 2026-09-29

  7. 07
    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

  8. 08
    Get business insurance

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

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