Insureon vs 
Markel Insurance: How Do They Compare for Professional Liability (E&O) Insurance?
What is Insureon?
Insureon describes a small-business insurance agency and broker route with online quote entry and agent support. Its pages market several coverage types, but do not establish which insurer, policy form, state availability, or eligibility applies to a particular buyer. 1,2
Read the Insureon Professional Liability (E&O) Insurance page
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. 4,5
Read the Markel Insurance profile
Read the Markel Insurance Professional Liability (E&O) Insurance page
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. 7,8,9,10
What Are the Key Differences Between Insureon and Markel Insurance Professional Liability (E&O) Insurance?
ProBiz Revenue and Industry Fit
Markel’s miscellaneous E&O offering is described for small businesses in its ProBiz target industries, with the source identifying businesses up to $5 million in revenue. Insureon describes professional liability for service businesses but does not set an equivalent revenue threshold; eligibility depends on its application and carrier appetite. A business near Markel’s stated revenue boundary should confirm whether the class and size fit before requesting comparable terms through Insureon. 6 3
Published E&O Limit Ceiling
Markel states a maximum E&O limit of $2 million, while warning that the product-page maximum is not a promise that each buyer can obtain it. Insureon’s overview gives no limit figure. If a client contract sets a required limit, ask both providers for the available per-claim and aggregate amounts, deductible, and any sublimits rather than comparing the stated cap to an unspecified quote. 6 3
Contact for Placement
Markel invites prospective buyers or brokers to contact its team, while Insureon provides an online quote request. Neither overview names the insurer for an individual proposal or establishes binding timing. Request the proposed form and insurer alongside the quote. 6 3
What Should You Confirm in Insureon and Markel Insurance Professional Liability (E&O) Insurance Quotes?
Insureon and Markel Insurance Review Scores for 2026
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.
Insureon Review Score
Review Score
4 rated sources
Insureon's ratings are split. Trustpilot shows 4.5 out of 5 from 2,401 reviews, while ConsumerAffairs shows 1.0 from 344.[1][2]
Read Insureon reviewsMarkel Insurance Review Score
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 reviewsInsureon vs Markel Insurance Professional Liability (E&O) Compared
Insureon vs Markel Insurance: Professional Liability (E&O) Insurance: documented features by provider
| Criteria | Insureon Professional Liability / E&O Insurance | Markel professional errors omissions (official overview) |
|---|---|---|
| Role in This Line | Insureon markets Professional Liability, also called Errors & Omissions, through its small-business quote channel. 3Company-reported. Insureon’s public marketing page and quote route documents this description. It does not establish the issuing insurer for an individual quote, exact state or provincial availability, the policy form, complete exclusions, or terms offered to a particular buyer; confirm those in the quote and policy documents. | Markel describes offering professional errors omissions for the audience stated on the cited product page. 6Company-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. |
| Who It’s For | The page addresses service businesses exposed to client claims; the eligible professions and carrier appetite depend on the application and quote. 3Company-reported. Insureon’s public marketing page and quote route documents this description. It does not establish the issuing insurer for an individual quote, exact state or provincial availability, the policy form, complete exclusions, or terms offered to a particular buyer; confirm those in the quote and policy documents. | Small businesses in ProBiz's targeted industries; source describes businesses up to $5 million revenue for the miscellaneous E&O product. 6Company-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. |
| Coverage Features | The page describes client claims over alleged mistakes or unsatisfactory professional work; it does not establish policy-specific retroactive dates, exclusions or limits. 3Company-reported. Insureon’s public marketing page and quote route documents this description. It does not establish the issuing insurer for an individual quote, exact state or provincial availability, the policy form, complete exclusions, or terms offered to a particular buyer; confirm those in the quote and policy documents. | 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. 6Company-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. |
| Limits and Retentions | The cited public overview does not establish the limits, deductibles, exclusions or form terms that would apply to a specific buyer. 3Not publicly disclosed. Ask for the quote and specimen or issued policy forms before treating a listed feature as covered. | 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. 6Company-reported. Markel ProBiz miscellaneous E&O marketing page; class, underwriting, policy terms, and actual quoted limit control. |
| How to Apply | The cited Insureon product page provides an online quote request path; that route does not identify the insurer or guarantee that a quote will be offered or bound. 3Company-reported. Insureon’s public marketing page and quote route documents this description. It does not establish the issuing insurer for an individual quote, exact state or provincial availability, the policy form, complete exclusions, or terms offered to a particular buyer; confirm those in the quote and policy documents. | 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. 6Company-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. |
Related Pages for Insureon vs Markel Insurance
Professional Liability (E&O) Pages for Insureon and Markel Insurance
Other Coverage Lines Compared for Insureon vs Markel Insurance
Other Professional Liability (E&O) Insurance Provider Comparisons
Sources for Insureon vs Markel Insurance
Sources About Insureon
- How Insureon Works. Insureon; Agent/broker and carrier roles (L82-88); application and advertised quote/payment route (L89-97); human support (L98-101). Accessed 2026-09-28.
- General Liability Insurance - Get Online Quotes. Insureon; Coverage/product overview; illustrative third-party claims; quote CTA. Accessed 2026-09-29.
- Professional Liability Insurance - Get Online Quotes. Insureon; Product definition L67-L89; quote CTA and target users on page. Accessed 2026-09-29.
Sources About 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.
Sources for the 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.
