Markel Insurance vs 
Marsh: How Do They Compare for Professional Liability (E&O) Insurance?
Markel Insurance: Specialty Business and Products
Markel Insurance is Markel Group's specialty and small-business insurance business, with offerings across packages, workers' compensation, cyber, professional and management liability, property, marine, and surety. Products use different insurers and distribution routes, so compare the issuer and terms shown on the specific quote. 1,2
Read the Markel Insurance profile
Read the Markel Insurance Professional Liability (E&O) Insurance page
What Is Marsh?
Marsh suits technology and larger businesses seeking specialist cyber placement or broad global risk advice; small firms wanting a quick standard quote should compare its MMA route or digital agencies. 4,5,6,7
What Is Professional Errors and Omissions (E&O) Insurance?
Professional liability can help pay defense costs and covered losses when a client says your advice or service caused financial harm. If customers rely on your work, list every service you provide and check the claims-made reporting and prior-work terms. 10,11,12,13
Key Differences in Professional Liability (E&O) Insurance
Small-business product or specialist placement
Markel describes miscellaneous E&O for targeted small-business industries, with a stated revenue scope up to $5 million and a $2 million product-page maximum. Marsh places professional liability through its financial and professional practice and names sectors including banking, insurance, accounting, law, architecture, media, technology and healthcare. Marsh also says attorneys, economists and actuaries work with coverage specialists to assess exposures. A complex or regulated service business may want that specialist review; compare Markel's published cap with Marsh's proposed limits. 3 8
Coverage scope and related claims
Marsh says professional liability can address liability and defense costs from errors, omissions or negligence in professional services, with many policies also covering privacy violations and computer-security breaches. Markel describes miscellaneous E&O for professional-services claims but does not specify those cyber-adjacent terms in the reviewed summary. Ask whether such exposures sit within E&O or need a separate policy. 8 3
What to Confirm in Professional Liability (E&O) Insurance Quotes
- Ask Marsh which privacy or computer-security claims are covered in the proposed form and who the issuing insurer is.
- Ask Markel whether your industry and revenue qualify, which cyber-adjacent claims are excluded and what limit is available.
Review Scores
These averages can combine ratings for different products, locations, and customer groups, including approximate BBB grade conversions. Read each review for the sources, scope, and calculation.
Markel Insurance
Review Score
2 rated sources
There is little public customer feedback on Markel. Trustpilot shows 2.5 out of 5 from just 5 reviews, and BBB lists 12 complaints closed in the last three years.[4][3]
Read Markel Insurance reviewsMarsh
Review Score
2 rated sources
Marsh’s global Trustpilot profile has a poor 1.3/5 score. Treat it as a service warning to investigate with your proposed team; it does not isolate US commercial accounts.[2][4][7]
Read Marsh reviewsOffering Details
Markel Insurance vs Marsh: Professional Liability (E&O) Insurance: documented features by provider
| Criteria | Markel professional errors omissions (official overview) | Marsh Professional Liability Insurance Brokerage |
|---|---|---|
| Role in This Line | Markel describes offering professional errors omissions for the audience stated on the cited product page. 3Company-reported. 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. | 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. 8,9Company-reported. Marsh professional liability page and MMA executive and professional liability page. |
| Issuing Insurer | Confirm in your quote. | The reviewed pages do not name a specific professional liability insurer. 8,9Not publicly disclosed. Marsh professional liability page and MMA executive and professional liability page as read on 2026-09-23. |
| Who It’s For | Small businesses in ProBiz's targeted industries; source describes businesses up to $5 million revenue for the miscellaneous E&O product. 3Company-reported. 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. | 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. 8Company-reported. Marsh professional liability page, What We Offer section. |
| Coverage Features | 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. 3Company-reported. 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. | 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. 8Company-reported. Marsh professional liability page opening description; illustrative policy description, not a specific policy form. |
| Limits and Retentions | 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. 3Company-reported. Markel ProBiz miscellaneous E&O marketing page; class, underwriting, policy terms, and actual quoted limit control. | Confirm in your quote. |
| Risk Services | Confirm in your quote. | 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. 8Company-reported. Marsh professional liability page. |
| How to Apply | 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. 3Company-reported. 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. | Confirm in your quote. |
Full Comparison
More Markel Insurance vs Marsh Comparisons
Other Professional Liability (E&O) Insurance Comparisons
Sources
Markel Insurance
- About us. Markel; Markel at a glance; description of Markel Insurance within Markel Group Inc. Accessed 2026-09-28.
- Markel Group Inc. 2025 Form 10-K. U.S. Securities and Exchange Commission; filed by Markel Group Inc.; Cover page; Part I, Item 1 Business—Markel Insurance, U.S. Wholesale and Specialty, Programs and Solutions; Part II, Item 7/8 for group and segment risks. Accessed 2026-09-28.
- ProBiz | Professional Liability Coverage. Markel; Miscellaneous E&O; types of covered professional-service errors; ProBiz target classes and process. Accessed 2026-09-30.
Marsh
- Marsh | Leader in risk, strategy, people, and investments. Marsh; Hero and capability tiles; FAQ: What does Marsh do?; industries served; Is Marsh the same as Marsh McLennan? January 2026 brand change. Accessed 2026-09-16.
- Compensation guide for US clients. Marsh; US broking segments; broker role; retail commissions, client fees, wholesale, insurer consulting, contingent and supplemental commissions; Marsh LLC and Marsh USA LLC; page 3: broker role and Marsh & McLennan Agency segment; page 7: copyright © 2024 Marsh LLC. Accessed 2026-09-16.
- Marsh McLennan Agency (MMA). Marsh; Middle-market US organizations; wholly-owned subsidiary; business insurance, employee health and benefits, retirement, private client. Accessed 2026-09-16.
- Technology | Insurance Broking & Risk Management. Marsh; Opening Technology Practice description; practice links including data center insurance, fintech and Stratus; Talk to us. Accessed 2026-09-16.
- 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.
- 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.
Professional Liability (E&O) Insurance Guide
- 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.
- 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.
- Get business insurance. U.S. Small Business Administration; Six common types of business insurance table. Accessed 2026-09-16.
- 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.
