Heffernan vs Marsh: Professional Liability / E&O Insurance

Marsh brings attorneys, economists and actuaries to professional liability for banks, asset managers, architects and venture firms. Heffernan Insurance Brokers' small-business division serves sole proprietors through fast-growing companies.

Kearny Risk organizes these comparisons for firms whose advice, content or technology creates professional exposures.Research updated 2026-09-25

Marsh places professional liability for specialized industries such as banking, asset managers and venture capital, while Heffernan's small-business division serves a broader, less specialized client base.

Sources reviewed

  1. 01
    Small Business Insurance

    Heffernan Insurance Brokers · The types of coverage we can provide include... Errors and omissions protects against claims for problems with your product or service that result in a financial loss; industries served list; Specialty Programs; contact for custom-designed packages · accessed 2026-09-23

  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
    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

  5. 05
    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

  6. 06
    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

  7. 07
    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 Heffernan Insurance Brokers and Marsh Professional Liability (E&O) Insurance?

Which Businesses Each Targets

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. [4] [1]

When comparing Heffernan Insurance Brokers and Marsh, use the stated fit categories to rule either provider in or out before spending time on an application.

What the Coverage Description Includes

Marsh says professional liability policies can protect against liability and defense costs from an error, omission or negligence claim, and that many of the policies it places also cover privacy violations and computer security breaches. [4] [1]

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

  • Ask Marsh and Heffernan which insurer would issue your policy, since neither reviewed page names one. [4] [5] [1]
  • Ask Marsh whether the specific policy it recommends includes privacy or computer-security coverage, or whether that requires a separate cyber policy. [4]
  • If your business doesn't fit Marsh's named specialized industries, confirm whether its practice still places your coverage. [4]
  • Ask Heffernan which carriers it typically places E&O with for a business your size. [1]

Areas of coverage

Heffernan Insurance Brokers

  • role: Heffernan lists errors and omissions among the coverages its small-business division places for clients, shopping the line with insurers rather than underwriting it. Small Business Insurance page as read on 2026-09-23; no dedicated professional-E&O product page was found.company-reportedSource ↗
  • coverage: Heffernan describes errors and omissions coverage as protecting against claims for problems with a company's product or service that result in a financial loss to a client. Small Business Insurance page as read on 2026-09-23; the page does not list specific exclusions, claims-made versus occurrence form, or endorsements.company-reportedSource ↗
  • eligibility: Heffernan's small-business division says it serves sole proprietors through fast-growing companies across industries including construction, food, health care, hospitality, nonprofits, real estate, technology, transportation, and vintners and growers, and will custom-design a package for industries not listed. Small Business Insurance page as read on 2026-09-23; not exclusively E&O-specific, but describes the buyer base for the page listing this coverage.company-reportedSource ↗
  • limits: The reviewed page does not publish limits, retentions, or premium ranges for errors and omissions coverage. Small Business Insurance page as read on 2026-09-23.not-disclosedSource ↗
  • application: Heffernan directs small-business buyers to contact the firm's small-business division to request a quote and says it will research and build a custom package for industries not already listed. Small Business Insurance page as read on 2026-09-23.company-reportedSource ↗

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 ↗

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