---
title: "HUB International vs Marsh: Professional Liability (E&O) Insurance"
description: "Marsh focuses on sectors such as banking, asset management and biotech and says many E&O policies cover privacy breaches; HUB serves broader professional industries and details policy structure."
canonical: "https://spot.insure/compare/hub-international-vs-marsh/professional-errors-omissions"
page-type: "line-comparison"
updated-at: "2026-09-25"
comparison-pair: "hub-international-vs-marsh"
provider-a: "hub-international"
provider-b: "marsh"
coverage-line: "professional-errors-omissions"
---

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[Human-readable page](https://spot.insure/compare/hub-international-vs-marsh/professional-errors-omissions)

## Agent Guide

**What this page is:** Focused comparison of HUB International and Marsh 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 HUB International versus Marsh. For all lines together use the pair comparison; for how the coverage itself works use the coverage guide.

**Questions this page answers:**
- HUB International vs Marsh for Professional Liability (E&O) Insurance: how do they differ?
- Which is better for Professional Liability (E&O) Insurance, HUB International or Marsh?
- What does HUB International or Marsh publish about Professional Liability (E&O) Insurance (limits, eligibility, claims, add-ons)?

**Key facts:**
- Line: Professional Liability (E&O) Insurance. Providers: HUB International and Marsh.
- Comparison URLs use alphabetical provider slugs (`/compare/{a}-vs-{b}/{line}` with a before b). A reversed pair redirects permanently to the alphabetical one.

**Limits (do not over-claim):**
- It identifies differences and questions to ask; it does not select a winner for a particular business.
- 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; last updated 2026-09-25.

**Related pages:**
- [HUB International vs Marsh](https://spot.insure/compare/hub-international-vs-marsh) — all coverage lines for this pair
- [Professional Liability (E&O) Insurance guide](https://spot.insure/coverage/professional-errors-omissions) — how this coverage works
- [HUB International profile](https://spot.insure/insurance-providers/hub-international) — provider profile
- [Marsh profile](https://spot.insure/insurance-providers/marsh) — provider profile

# HUB International vs Marsh: How Do They Compare for Professional Liability (E&O) Insurance?

HUB International covers typical E&O buyers such as accountants, law firms and contractors. Marsh serves specialized sectors like banking, venture capital and asset managers, and staffs attorneys, economists and actuaries to assess exposure.

Marsh serves specialist sectors and says many E&O policies cover privacy breaches; HUB names a broader industry list and details claims-made limits and tail options.

## HUB International vs Marsh Professional Liability (E&O) Insurance Summary

Marsh focuses on sectors such as banking, asset management and biotech and says many E&O policies cover privacy breaches; HUB serves broader professional industries and details policy structure. [3](https://www.marsh.com/en/services/financial-professional-liability/expertise/professional-liability.html "Professional liability") [1](https://www.hubinternational.com/products/business-insurance/professional-liability-insurance/ "Professional Liability Insurance Brokers") [2](https://www.hubinternational.com/products/business-insurance/errors-and-omissions/ "Errors and Omissions (E&O) Insurance Coverage")

## What Are the Key Differences Between HUB International and Marsh Professional Liability (E&O) Insurance?

### Industry Focus and Cyber Coverage

Marsh names specialized financial, technology, healthcare, media and professional-service sectors, and says many policies cover privacy and computer-security breaches. [3](https://www.marsh.com/en/services/financial-professional-liability/expertise/professional-liability.html "Professional liability") HUB names accounting, law, medicine, financial advisory, real estate, architecture, engineering, consulting, contracting and technology businesses. [1](https://www.hubinternational.com/products/business-insurance/professional-liability-insurance/ "Professional Liability Insurance Brokers")

Choose Marsh if you work in one of its specialized sectors and privacy exposure matters; choose HUB if you need its documented claims-made structure, per-claim and aggregate limits, prior-acts or tail options. [3](https://www.marsh.com/en/services/financial-professional-liability/expertise/professional-liability.html "Professional liability") [2](https://www.hubinternational.com/products/business-insurance/errors-and-omissions/ "Errors and Omissions (E&O) Insurance Coverage")

### Coverage and Claims Support

HUB lists defense costs, judgments, settlements and fines for allegations including misrepresentation or misleading advice, and gives claim-notice steps. [1](https://www.hubinternational.com/products/business-insurance/professional-liability-insurance/ "Professional Liability Insurance Brokers") [2](https://www.hubinternational.com/products/business-insurance/errors-and-omissions/ "Errors and Omissions (E&O) Insurance Coverage") Marsh says its specialists include attorneys, economists and actuaries who assess exposure. [3](https://www.marsh.com/en/services/financial-professional-liability/expertise/professional-liability.html "Professional liability")

## What Should You Confirm in HUB International and Marsh Professional Liability (E&O) Insurance Quotes?

- Ask Marsh whether the quote includes privacy and computer-security coverage. [3](https://www.marsh.com/en/services/financial-professional-liability/expertise/professional-liability.html "Professional liability")
- Ask both which insurer would issue your policy and compare limits and retentions. [3](https://www.marsh.com/en/services/financial-professional-liability/expertise/professional-liability.html "Professional liability") [1](https://www.hubinternational.com/products/business-insurance/professional-liability-insurance/ "Professional Liability Insurance Brokers")
- Confirm HUB's tail, contractor and claim-notice terms. [2](https://www.hubinternational.com/products/business-insurance/errors-and-omissions/ "Errors and Omissions (E&O) Insurance Coverage")

## HUB International vs Marsh Professional Liability (E&O) Compared

| Criteria | HUB International Professional Liability (E&O) Insurance Brokerage | Marsh Professional Liability Insurance Brokerage |
| --- | --- | --- |
| Who It’s For | HUB names accounting, law, medical, financial-advisory, real estate, architecture and engineering, consulting, and contracting businesses as typical E&O buyers, and separately lists technology among nine industries its E&O practice serves. [1](https://www.hubinternational.com/products/business-insurance/professional-liability-insurance/ "Professional Liability Insurance Brokers") [2](https://www.hubinternational.com/products/business-insurance/errors-and-omissions/ "Errors and Omissions (E&O) Insurance Coverage") (Evidence: Company-reported; scope: Combined professional-liability and E&O industry lists; not a published underwriting appetite by state..) | 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. [3](https://www.marsh.com/en/services/financial-professional-liability/expertise/professional-liability.html "Professional liability") (Evidence: Company-reported; scope: Marsh professional liability page, What We Offer section..) |
| Coverage Features | HUB says professional liability/E&O policies it arranges can cover defense costs, judgments, settlements and fines from allegations of misrepresentation, breach of professional services, wrongful business practices, misleading advice and conflict of interest, plus libel, slander or lost-profit claims; intentional acts and employment claims are typically excluded. [1](https://www.hubinternational.com/products/business-insurance/professional-liability-insurance/ "Professional Liability Insurance Brokers") (Evidence: Company-reported; scope: Product-page coverage description; the issued policy and its exclusions control an actual claim..)<br><br>HUB says E&O policies are typically claims-made with per-claim and aggregate limits, can be structured with prior-acts coverage back to a retroactive date, and can offer tail coverage for an extended reporting period; coverage can extend to independent contractors and temporary staff performing work for the business. [2](https://www.hubinternational.com/products/business-insurance/errors-and-omissions/ "Errors and Omissions (E&O) Insurance Coverage") (Evidence: Company-reported; scope: E&O product-page structure description; specific limits and retroactive dates are set on the quote and declarations..) | 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. [3](https://www.marsh.com/en/services/financial-professional-liability/expertise/professional-liability.html "Professional liability") (Evidence: Company-reported; scope: Marsh professional liability page opening description; illustrative policy description, not a specific policy form..) |
| Role in This Line | HUB brokers professional liability, which it also calls errors and omissions (E&O) insurance, rather than underwriting the coverage itself. [1](https://www.hubinternational.com/products/business-insurance/professional-liability-insurance/ "Professional Liability Insurance Brokers") [2](https://www.hubinternational.com/products/business-insurance/errors-and-omissions/ "Errors and Omissions (E&O) Insurance Coverage") (Evidence: Company-reported; scope: Professional liability and E&O product pages as read 2026-09-23; neither names an issuing insurer..) | 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. [3](https://www.marsh.com/en/services/financial-professional-liability/expertise/professional-liability.html "Professional liability") [4](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Expert Executive and Professional Liability Insurance") (Evidence: Company-reported; scope: Marsh professional liability page and MMA executive and professional liability page..) |

## About HUB International and Marsh and Professional Liability (E&O)

- [HUB International company profile](https://spot.insure/insurance-providers/hub-international) · [HUB International customer reviews](https://spot.insure/insurance-providers/hub-international/reviews)
- [Marsh company profile](https://spot.insure/insurance-providers/marsh) · [Marsh customer reviews](https://spot.insure/insurance-providers/marsh/reviews)
- [What Is Professional Errors and Omissions (E&O) Insurance?](https://spot.insure/coverage/professional-errors-omissions)

## Related Pages for HUB International vs Marsh

- [HUB International vs Marsh](https://spot.insure/compare/hub-international-vs-marsh): 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.
- [HUB International Professional Liability (E&O) Insurance](https://spot.insure/insurance-providers/hub-international/professional-errors-omissions)
- [Marsh Professional Liability (E&O) Insurance](https://spot.insure/insurance-providers/marsh/professional-errors-omissions)

## Sources for HUB International vs Marsh

### Sources About HUB International

1. [Professional Liability Insurance Brokers](https://www.hubinternational.com/products/business-insurance/professional-liability-insurance/). HUB International; What is professional liability?; Who Needs Professional Liability Insurance Coverage?; How Can You Limit Your Exposure to Professional Liability?; exclusions; Connect With a Broker. Accessed 2026-09-23.
2. [Errors and Omissions (E&O) Insurance Coverage](https://www.hubinternational.com/products/business-insurance/errors-and-omissions/). HUB International; Industries served list including accounting, architecture, creative, dental, engineering, financial, medical, media and technology; prior-acts coverage; claims-made structure with per-claim and aggregate limits and tail coverage; claims-notification steps. Accessed 2026-09-23.

### Sources About Marsh

3. [Professional liability](https://www.marsh.com/en/services/financial-professional-liability/expertise/professional-liability.html). 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.
4. [Expert Executive and Professional Liability Insurance](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html). 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.

Updated 2026-09-25. 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.

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