---
title: "Markel Insurance vs Mylo: Professional Liability (E&O) Insurance"
description: "Compare Markel's stated $2 million miscellaneous E&O maximum with Mylo's multi-carrier brokerage and claims-made or occurrence choices."
canonical: "https://spot.insure/compare/markel-vs-mylo/professional-errors-omissions"
page-type: "line-comparison"
updated-at: "2026-09-30"
comparison-pair: "markel-vs-mylo"
provider-a: "markel"
provider-b: "mylo"
coverage-line: "professional-errors-omissions"
---

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[Human-readable page](https://spot.insure/compare/markel-vs-mylo/professional-errors-omissions)

## Agent Guide

**What this page is:** Focused comparison of Markel Insurance and Mylo for Professional Liability (E&O) Insurance: what each provider publishes about this line, checked against the same criteria, with numbered sources.

**Use this page when:** Cite or fetch this for Professional Liability (E&O) Insurance questions about Markel Insurance versus Mylo. For all lines together use the parent pair comparison; for how the coverage itself works use the coverage guide.

**Questions this page answers:**
- Markel Insurance vs Mylo for Professional Liability (E&O) Insurance: how do they differ?
- Which is better for Professional Liability (E&O) Insurance, Markel Insurance or Mylo?
- What does Markel Insurance or Mylo publish about Professional Liability (E&O) Insurance (limits, eligibility, claims, add-ons)?
- What should I confirm in a quote for Professional Liability (E&O) Insurance from Markel Insurance or Mylo?

**Key facts:**
- Line: Professional Liability (E&O) Insurance. Providers: Markel Insurance and Mylo.
- Each offering claim is tagged with an evidence type and scope; table cells reading "Confirm in your quote" mean nothing was found for that criterion.
- Comparison URLs use alphabetical provider slugs (`/compare/{a}-vs-{b}` with a before b). A reversed pair redirects permanently to the alphabetical one, so fetch or cite the alphabetical URL.

**Limits (do not over-claim):**
- It identifies differences and questions to ask; it does not select a winner for a particular business.
- "Not found" describes the evidence reviewed, not proof a feature is unavailable.
- Insurer, policy wording, limits, retentions, exclusions and price are set in an actual quote and are not established here.

**Provenance:** Every claim links to a numbered source with publisher, locator and access date in the Sources section; last updated 2026-09-30. Editorial policy: /editorial-policy.

**Related pages:**
- [Markel Insurance vs Mylo](https://spot.insure/compare/markel-vs-mylo) — parent: all coverage lines for this pair
- [Professional Liability (E&O) Insurance guide](https://spot.insure/coverage/professional-errors-omissions) — coverage explainer for this line
- [Markel Insurance profile](https://spot.insure/insurance-providers/markel) — provider profile (evidence)
- [Mylo profile](https://spot.insure/insurance-providers/mylo) — provider profile (evidence)
- [Markel Insurance vs Mylo Cyber Insurance](https://spot.insure/compare/markel-vs-mylo/cyber) — sibling comparison (other line, or other pair for this line)
- [Markel Insurance vs Mylo Umbrella and Excess Liability Insurance](https://spot.insure/compare/markel-vs-mylo/umbrella-excess) — sibling comparison (other line, or other pair for this line)
- [Markel Insurance vs Mylo Workers’ Compensation Insurance](https://spot.insure/compare/markel-vs-mylo/workers-compensation) — sibling comparison (other line, or other pair for this line)
- [AIG vs Markel Insurance Professional Liability (E&O) Insurance](https://spot.insure/compare/aig-vs-markel/professional-errors-omissions) — sibling comparison (other line, or other pair for this line)
- [AIG vs Mylo Professional Liability (E&O) Insurance](https://spot.insure/compare/aig-vs-mylo/professional-errors-omissions) — sibling comparison (other line, or other pair for this line)
- [Alliance Risk vs Markel Insurance Professional Liability (E&O) Insurance](https://spot.insure/compare/alliance-risk-vs-markel/professional-errors-omissions) — sibling comparison (other line, or other pair for this line)
- [Alliance Risk vs Mylo Professional Liability (E&O) Insurance](https://spot.insure/compare/alliance-risk-vs-mylo/professional-errors-omissions) — sibling comparison (other line, or other pair for this line)
- [Aon vs Markel Insurance Professional Liability (E&O) Insurance](https://spot.insure/compare/aon-vs-markel/professional-errors-omissions) — sibling comparison (other line, or other pair for this line)
- [At-Bay vs Markel Insurance Professional Liability (E&O) Insurance](https://spot.insure/compare/at-bay-vs-markel/professional-errors-omissions) — sibling comparison (other line, or other pair for this line)

# Markel Insurance vs Mylo: How Do They Compare for Professional Liability (E&O) Insurance?

Compare Markel's stated $2 million miscellaneous E&O maximum with Mylo's multi-carrier brokerage and claims-made or occurrence choices.

## Research Scope and Use

Use this comparison to evaluate Markel Insurance and Mylo for Professional Liability (E&O) Insurance against the same documented criteria. It identifies differences and questions to confirm; it does not select a winner for a particular business. Offering claims are what each provider publishes about this line unless marked otherwise. “Not found” describes the evidence reviewed, not proof that a feature is unavailable. Confirm the insurer, policy wording, limits, retentions, exclusions and cost in an actual quote.

## Summary

Markel describes miscellaneous E&O for targeted small businesses up to $5 million revenue with a $2 million maximum; Mylo compares carrier quotes and explains both claims-made and occurrence forms. [3](https://www.markel.com/us/commercial/professional-and-management-liability/probiz "ProBiz | Professional Liability Coverage") [6](https://choosemylo.com/business/product-professional-liability "Professional Liability 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](https://www.markel.com/about-us "About us") [2](https://www.sec.gov/Archives/edgar/data/1096343/000109634326000020/mkl-20251231.htm "Markel Group Inc. 2025 Form 10-K")

[Markel Insurance profile](https://spot.insure/insurance-providers/markel)

## What Is Mylo Insurance?

Mylo suits small businesses wanting online quote comparisons or licensed-advisor help; firms needing complex program management should compare full-service brokers. Mylo says 95% of customers pay no fee, though some transactions carry fees. [4](https://choosemylo.com/business/business-insurance "Small Business Insurance") [5](https://choosemylo.com/our-story "About Mylo")

[Mylo profile](https://spot.insure/insurance-providers/mylo)

## 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. [8](https://www.tdi.texas.gov/commercial/pl-faq.html "FAQ: Professional liability insurance") [9](https://www.iii.org/article/professional-liability-insurance "Professional liability insurance") [10](https://www.sba.gov/counseling/launch-your-business/#business-insurance "Get business insurance") [11](https://www.hiscox.com/documents/pl-sample-policy-wording.pdf "Professional Liability – US Direct Errors and Omissions Insurance")

## Key Differences in Professional Liability (E&O) Insurance

### Coverage trigger and limit

Mylo explains that E&O can be written claims-made or occurrence and that tail coverage may extend reporting after a claims-made policy ends. It compares quotes from multiple business insurers rather than underwriting the policy. Markel describes miscellaneous E&O for selected small businesses, noting revenue up to $5 million and a $2 million maximum, but the reviewed claim does not specify its trigger or tail. If changing carriers, compare retroactive dates and reporting extensions with the quoted limit. [6](https://choosemylo.com/business/product-professional-liability "Professional Liability Insurance") [3](https://www.markel.com/us/commercial/professional-and-management-liability/probiz "ProBiz | Professional Liability Coverage")

### Professional types and terms

Mylo markets this line to businesses from app development and financial planning to beauty services and describes bodily injury, property damage, financial loss and consequential-damage claims arising from client relationships. Markel describes miscellaneous E&O for professional-services claims and its targeted small-business market. Ask each to map your service agreement and requested damages to the policy definition. [6](https://choosemylo.com/business/product-professional-liability "Professional Liability Insurance") [3](https://www.markel.com/us/commercial/professional-and-management-liability/probiz "ProBiz | Professional Liability Coverage")

## What to Confirm in Professional Liability (E&O) Insurance Quotes

- Ask Mylo which carrier and trigger its quote uses, and whether the proposed retroactive date and tail meet your needs.
- Ask Markel what claims-made or occurrence form it offers, available limit and eligible professional classes.

## Offering Details

| Criteria | Markel professional errors omissions (official overview) | Mylo Professional Liability Insurance |
| --- | --- | --- |
| Role in This Line | Markel describes offering professional errors omissions for the audience stated on the cited product page. [3](https://www.markel.com/us/commercial/professional-and-management-liability/probiz "ProBiz | Professional Liability Coverage") (Evidence: Company-reported; scope: 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..) | Mylo brokers professional liability insurance by comparing quotes from multiple business insurance companies rather than underwriting the policy itself. [6](https://choosemylo.com/business/product-professional-liability "Professional Liability Insurance") (Evidence: Company-reported; scope: Professional liability product page..) |
| Issuing Insurer | Confirm in your quote. | The professional liability product page and Mylo's carrier-contact directory do not name the insurer that would issue a professional liability policy; the directory groups carriers under generic Auto & Home and Business categories only. [6](https://choosemylo.com/business/product-professional-liability "Professional Liability Insurance") [7](https://choosemylo.com/contact-your-carrier "Contact Your Carrier") (Evidence: Not publicly disclosed; scope: Checked the professional liability product page and the carrier-contact directory on 2026-09-23; neither ties a named carrier to this line..) |
| 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. [3](https://www.markel.com/us/commercial/professional-and-management-liability/probiz "ProBiz | Professional Liability Coverage") (Evidence: Company-reported; scope: 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..) | Mylo markets this line to businesses that could face a claim from a client unhappy with their professional services, using examples spanning app development, financial planning and beauty-salon services. [6](https://choosemylo.com/business/product-professional-liability "Professional Liability Insurance") (Evidence: Company-reported; scope: Product page examples; a particular business's eligibility depends on underwriting..) |
| 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. [3](https://www.markel.com/us/commercial/professional-and-management-liability/probiz "ProBiz | Professional Liability Coverage") (Evidence: Company-reported; scope: 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..) | Mylo describes the policy responding to breach-of-contract claims, bodily injury or property damage claims, financial-loss claims, and consequential-damages claims arising from a client relationship. [6](https://choosemylo.com/business/product-professional-liability "Professional Liability Insurance") (Evidence: Company-reported; scope: Product page coverage descriptions; actual insuring agreements and exclusions are set by the issued policy..)<br><br>Mylo explains that professional liability comes in claims-made and occurrence forms, and that tail coverage can be added to a claims-made policy to extend reporting after it ends. [6](https://choosemylo.com/business/product-professional-liability "Professional Liability Insurance") (Evidence: Company-reported; scope: Product page FAQ; which form and tail terms are offered depends on the placed carrier..) |
| 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. [3](https://www.markel.com/us/commercial/professional-and-management-liability/probiz "ProBiz | Professional Liability Coverage") (Evidence: Company-reported; scope: Markel ProBiz miscellaneous E&O marketing page; class, underwriting, policy terms, and actual quoted limit control..) | Confirm in your quote. |
| 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. [3](https://www.markel.com/us/commercial/professional-and-management-liability/probiz "ProBiz | Professional Liability Coverage") (Evidence: Company-reported; scope: 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..) | Mylo says it recommends coverage customized to the business and compares professional liability quotes from top-rated business insurance companies to find a combination of coverage and price. [6](https://choosemylo.com/business/product-professional-liability "Professional Liability Insurance") (Evidence: Company-reported; scope: Product page "How will Mylo find me the right policy?" section..) |
| Claims Support | Confirm in your quote. | Mylo's carrier-contact page lists claims phone numbers by carrier for Auto & Home and Business policies generally, but does not identify a professional-liability-specific claims contact or process. [7](https://choosemylo.com/contact-your-carrier "Contact Your Carrier") (Evidence: Not found in reviewed sources; scope: Carrier-contact directory checked 2026-09-23; entries are organized by carrier and general product category, not by coverage line..) |

## Full Comparison

- [Markel Insurance vs Mylo](https://spot.insure/compare/markel-vs-mylo): all coverage lines, business roles, service and claims.
- [What Is Professional Errors and Omissions (E&O) Insurance?](https://spot.insure/coverage/professional-errors-omissions): Professional liability can help pay covered defense costs and losses when a client says your advice or service caused financial harm; check services and reporting terms.
- [Markel Insurance vs Mylo Cyber Insurance](https://spot.insure/compare/markel-vs-mylo/cyber)
- [Markel Insurance vs Mylo Umbrella and Excess Liability Insurance](https://spot.insure/compare/markel-vs-mylo/umbrella-excess)
- [Markel Insurance vs Mylo Workers’ Compensation Insurance](https://spot.insure/compare/markel-vs-mylo/workers-compensation)
- [AIG vs Markel Insurance Professional Liability (E&O) Insurance](https://spot.insure/compare/aig-vs-markel/professional-errors-omissions)
- [AIG vs Mylo Professional Liability (E&O) Insurance](https://spot.insure/compare/aig-vs-mylo/professional-errors-omissions)
- [Alliance Risk vs Markel Insurance Professional Liability (E&O) Insurance](https://spot.insure/compare/alliance-risk-vs-markel/professional-errors-omissions)
- [Alliance Risk vs Mylo Professional Liability (E&O) Insurance](https://spot.insure/compare/alliance-risk-vs-mylo/professional-errors-omissions)
- [Aon vs Markel Insurance Professional Liability (E&O) Insurance](https://spot.insure/compare/aon-vs-markel/professional-errors-omissions)
- [At-Bay vs Markel Insurance Professional Liability (E&O) Insurance](https://spot.insure/compare/at-bay-vs-markel/professional-errors-omissions)

## Sources

### Markel Insurance

1. [About us](https://www.markel.com/about-us). Markel; Markel at a glance; description of Markel Insurance within Markel Group Inc.. Accessed 2026-09-28.
2. [Markel Group Inc. 2025 Form 10-K](https://www.sec.gov/Archives/edgar/data/1096343/000109634326000020/mkl-20251231.htm). 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.
3. [ProBiz | Professional Liability Coverage](https://www.markel.com/us/commercial/professional-and-management-liability/probiz). Markel; Miscellaneous E&O; types of covered professional-service errors; ProBiz target classes and process.. Accessed 2026-09-30.

### Mylo

4. [Small Business Insurance](https://choosemylo.com/business/business-insurance). Mylo; Hero; What Insurance Does A Small Business Need (Business Owners Policy listing); Get My Quote; Business Insurance FAQs; commercial-product navigation; footer legal disclosure. Accessed 2026-09-16.
5. [About Mylo](https://choosemylo.com/our-story). Mylo; Your Digital One-Stop Shop; The Broker Advantage; Proven Heritage, Powerful Future; About Mylo FAQs. Accessed 2026-09-15.
6. [Professional Liability Insurance](https://choosemylo.com/business/product-professional-liability). Mylo; Professional Liability? But I Do Good Work; What does professional liability cover?; Professional liability FAQs (claims-made vs. occurrence, tail coverage); How will Mylo find me the right policy?. Accessed 2026-09-23.
7. [Contact Your Carrier](https://choosemylo.com/contact-your-carrier). Mylo; Carrier contact list grouped by Auto & Home, Business and Claims; no professional-liability-specific entry. Accessed 2026-09-23.

### Professional Liability (E&O) Insurance Guide

8. [FAQ: Professional liability insurance](https://www.tdi.texas.gov/commercial/pl-faq.html). 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.
9. [Professional liability insurance](https://www.iii.org/article/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.
10. [Get business insurance](https://www.sba.gov/counseling/launch-your-business/#business-insurance). U.S. Small Business Administration; Six common types of business insurance table. Accessed 2026-09-16.
11. [Professional Liability – US Direct Errors and Omissions Insurance](https://www.hiscox.com/documents/pl-sample-policy-wording.pdf). 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.

Updated 2026-09-30. Spot, a product of Tools for Enlightenment, publishes this research and works in the commercial insurance market. The comparison applies the same criteria to both providers. [Editorial policy](https://spot.insure/editorial-policy). To suggest a correction, [contact Spot](https://spot.insure/contact) with the page URL and supporting source.

## Markel Insurance Reviews

Review Score: 7.5 / 10 from 2 rated sources, equally weighted.

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.

- J.D. Power: Commercial Lines Insurers agent satisfaction score 726 (out of 1,000). 2022 commercial-lines independent-agent satisfaction study and 2025 small-commercial customer study; these use different populations and measures Period: 2022. Checked 2026-09-29. [2025 U.S. Small Commercial Insurance Study](https://www.jdpower.com/business/press-releases/2025-us-small-commercial-insurance-study); [2022 U.S. Independent Agent Satisfaction Study](https://www.jdpower.com/sites/default/files/file/2022-10/2022134%20U.S.%20Independent%20Agent.pdf)
- Trustpilot: TrustScore 2.5 (out of 5); 5 reviews. Trustpilot brand-level page for markel.com. It mixes products and is not mapped to one legal insurer. Checked 2026-09-29. [Markel Reviews](https://www.trustpilot.com/review/markel.com)
- BBB: BBB business grade A+. BBB business profile for Markel Insurance Company headquarters/corporate-owned locations; review and complaint submissions may include other products and affiliates Checked 2026-09-29. [Markel Insurance Company Business Profile](https://www.bbb.org/us/va/glen-allen/profile/insurance-companies/markel-insurance-company-0603-4017547); [Markel Insurance Company Complaints](https://www.bbb.org/us/va/glen-allen/profile/insurance-companies/markel-insurance-company-0603-4017547/complaints)
- BBB: Complaints 12; 12 reviews. BBB profile for Markel Insurance Company; complaints may include other Markel products and affiliates and BBB says not all submissions are displayed. Period: last 3 years, as displayed 2026-09-29. Checked 2026-09-29. [Markel Insurance Company Complaints](https://www.bbb.org/us/va/glen-allen/profile/insurance-companies/markel-insurance-company-0603-4017547/complaints)

Reviewed 2026-09-29. [Read the sourced review](https://spot.insure/insurance-providers/markel/reviews).

## Mylo Reviews

Review Score: 7.7 / 10 from 2 rated sources, equally weighted.

Mylo has strong feedback on its Kansas City Birdeye listing, while its tiny Trustpilot sample is negative. Most available feedback mixes personal and business insurance.

- Trustpilot: TrustScore 2.9 (0–5 stars); 2 reviews. Trustpilot brand profile linked to choosemylo.com and Kansas City address; two user reviews from U.S. reviewers, both about auto-insurance shopping, not commercial policies. Trustpilot warns reviews may not be representative. Period: 0 reviews in prior 12 months; accessed 2026-09-25. Checked 2026-09-25. [Mylo Reviews | Trustpilot](https://uk.trustpilot.com/review/choosemylo.com)
- Birdeye (aggregates Google and Birdeye reviews): combined Google/Birdeye star rating 4.8 (0–5 stars); 1329 reviews. Kansas City office at 8880 Ward Pkwy #200; profile links to choosemylo.com and identifies insurance products including business, home, auto, health and group health. Birdeye shows 1,328 Google and 1 Birdeye review. Local office and mixed-product profile, not company-wide commercial-only consensus. Period: Observed 2026-09-25; 1,328 Google-origin plus one Birdeye review. Checked 2026-09-25. [Mylo, a Lockton Company | Birdeye](https://reviews.birdeye.com/mylo-a-lockton-company-155339142807839)

Reviewed 2026-09-25. [Read the sourced review](https://spot.insure/insurance-providers/mylo/reviews).

## Agent and Developer Resources

- [Markdown page](https://spot.insure/compare/markel-vs-mylo/professional-errors-omissions.md)
- [Developer resources](https://spot.insure/developers)
- [Public MCP server](https://spot.insure/mcp)
- [MCP server manifest](https://spot.insure/server.json)
- [OpenAPI description](https://spot.insure/openapi.json)
- [Public page index](https://spot.insure/llms.txt)