Gallagher vs Marsh Mclennan Agency: Professional Liability / E&O Insurance

Gallagher Small Business offers an online quote form and an advisor phone line for small professional-service firms. Marsh McLennan Agency has organizations talk to an adviser about placing E&O, including specialist lines for architects and lawyers.

Kearny Risk organizes these comparisons for firms whose advice, content or technology creates professional exposures.Research updated 2026-10-01

Gallagher says E&O can respond to claims involving past work, temporary staff and independent contractors, subject to the issued policy. MMA names E&O, A&E and lawyers professional lines.

Sources reviewed

  1. 01
    Errors and Omissions Insurance

    Gallagher Small Business · What is Errors and Omissions Insurance?; Do you need Errors and Omissions insurance?; Recommended for professionals including; E&O trends; An E&O policy protects you from; Consider this claim scenario; Get Covered Now · 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
    Executive and Professional Liability | MMA

    Marsh McLennan Agency · E&O, architects and engineers, and lawyers professional lines are named in the policy suite. · 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

What Are the Key Differences Between Gallagher and Marsh McLennan Agency Professional Liability (E&O) Insurance?

Work history and people whose work may trigger a claim

Gallagher describes E&O claims involving past work, temporary staff and independent contractors, as well as legal costs for alleged professional-service losses; its record notes medical malpractice is handled as a separate specialized line. MMA’s source names general E&O and distinct lawyer and architect/engineer products. A business using contractors should compare the insured-person wording in the proposed form with Gallagher’s listed examples and identify any profession-specific MMA policy. [1] [4]

Scope by professional class

Gallagher recommends E&O for small businesses providing professional services and gives technology, accounting, tax, wealth-management and legal examples. MMA’s source lists E&O, A&E and lawyers lines as distinct suite offerings. A licensed profession should check whether a general E&O form or a specialized policy applies in either quote; ask for the carrier, prior-acts date and contractor definition in writing. [1] [4]

What Should You Confirm in Gallagher and Marsh McLennan Agency Professional Liability (E&O) Insurance Quotes?

  • Does Gallagher’s proposed form include prior work and contractor claims for your profession? [1] [4]
  • Which MMA specialist line and insured-person definition fit the work and license involved? [1] [4]

Areas of coverage

Gallagher

  • role: Gallagher Small Business arranges errors and omissions (E&O) coverage with partner carriers rather than underwriting the policy itself. Gallagher Small Business's direct-to-small-business E&O product page.company-reportedSource ↗
  • coverage: Gallagher describes E&O as protecting against client charges of negligence or injury tied to professional services, covering losses, attorney fees and court costs regardless of fault, and specifically responding to alleged or actual negligence, personal injury, copyright infringement, punitive damages, and claims against past work, temporary staff or independent contractors. Product page coverage description; the issued policy and its exclusions control. Note this record excludes medical malpractice, which the page treats as a separate specialized coverage covered under its own line.company-reportedSource ↗
  • eligibility: Gallagher recommends E&O for small businesses that provide a specific professional service, naming technology, insurance, accounting, tax, wealth management and legal services, and lists doctors, lawyers, accountants, nurses, caregivers, counselors, social workers and engineers as example professionals; it also notes that many client contracts require carrying E&O. Product page eligibility and recommended-professions lists; actual acceptance depends on underwriting.company-reportedSource ↗
  • coverage: Gallagher's small-business team says the E&O market has seen consistent rate increases that have started to moderate, driven by higher claim frequency, litigation costs and a more litigious environment, and that insurers are more selective and require more detailed underwriting information. Product page market-commentary section; a general market view, not a quote for any specific business.company-reportedSource ↗
  • insurer: The E&O product page does not name the insurer that would issue a given business's policy. Checked the E&O product page on 2026-09-23.not-disclosedSource ↗
  • limits: The E&O product page does not publish limits, deductibles or premiums; it directs prospective buyers to request a quote instead. Checked the E&O product page on 2026-09-23.not-disclosedSource ↗
  • application: Gallagher offers an online quote form, a small business advisor phone line (1-833-292-9441, Monday through Friday, 8 a.m. to 5 p.m., continental U.S.), and a scheduled callback request to start an E&O quote. Product page "Get Covered Now" section.company-reportedSource ↗

Marsh McLennan Agency

  • role: Marsh McLennan Agency describes arranging professional errors omissions for the audience stated on the cited product page. professional errors omissions marketed by marsh-mclennan-agency; 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: Organizations seeking professional liability placement; source does not imply all professions share one policy. professional errors omissions marketed by marsh-mclennan-agency; 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 E&O and named specialist professional lines, including architects and engineers and lawyers professional liability; the overview does not treat them as one form. Marketing description only; actual coverage, exclusions, conditions, limits, and availability depend on the issued policy and jurisdiction. professional errors omissions marketed by marsh-mclennan-agency; 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 organizations to contact a Marsh McLennan Agency adviser or specialist to discuss placement. The page does not establish a quote, bind, or coverage-effective timeline. professional errors omissions marketed by marsh-mclennan-agency; 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: The cited overview does not set a universal limit or retention for this line. Ask for the proposed policy form, limits, retentions, exclusions, and conditions in the quote. Only the cited marketing page was reviewed for published limit and retention information; no policy-form entitlement is inferred.not-disclosedSource ↗

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