---
title: "Gallagher vs Harper: Professional Liability (E&O) Insurance"
description: "Harper says its Professional Liability and Errors and Omissions catalogue entries are the same policy under two industry names, while Gallagher lists a single Errors and Omissions product page and separately publishes market commentary on rate trends."
canonical: "https://spot.insure/compare/gallagher-vs-harper/professional-errors-omissions"
page-type: "line-comparison"
updated-at: "2026-09-25"
comparison-pair: "gallagher-vs-harper"
provider-a: "gallagher"
provider-b: "harper"
coverage-line: "professional-errors-omissions"
---

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

## Agent Guide

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

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

**Key facts:**
- Line: Professional Liability (E&O) Insurance. Providers: Gallagher and Harper.
- 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:**
- [Gallagher vs Harper](https://spot.insure/compare/gallagher-vs-harper) — all coverage lines for this pair
- [Professional Liability (E&O) Insurance guide](https://spot.insure/coverage/professional-errors-omissions) — how this coverage works
- [Gallagher profile](https://spot.insure/insurance-providers/gallagher) — provider profile
- [Harper profile](https://spot.insure/insurance-providers/harper) — provider profile

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

Two brokers, two ways in. Harper writes one policy around your actual services and issues a certificate the same day when a contract requires E&O; Gallagher Small Business offers an online form, an advisor phone line or a callback.

Harper markets the identical E&O policy under two catalogue names; Gallagher lists it once under a single product page.

## Gallagher vs Harper Professional Liability (E&O) Insurance Summary

Harper says its Professional Liability and Errors and Omissions catalogue entries are the same policy under two industry names, while Gallagher lists a single Errors and Omissions product page and separately publishes market commentary on rate trends. [3](https://www.harperinsure.com/coverages/errors-and-omissions "Errors and Omissions Insurance") [4](https://www.harperinsure.com/coverages "What We Cover") [1](https://www.gallaghersmallbusiness.com/insurance-products/professional-liability-eo/ "Errors and Omissions Insurance")

## What Are the Key Differences Between Gallagher and Harper Professional Liability (E&O) Insurance?

### One Catalogue Entry Versus Two

Gallagher lists a single Errors and Omissions Insurance page in its small-business catalogue. [1](https://www.gallaghersmallbusiness.com/insurance-products/professional-liability-eo/ "Errors and Omissions Insurance") Harper instead markets the same underlying policy under two separate catalogue names:

Harper markets the identical policy under two catalogue entries, "Professional Liability" and "Errors and Omissions"; the E&O page states it is the same policy, just named what a given industry calls it. [3](https://www.harperinsure.com/coverages/errors-and-omissions "Errors and Omissions Insurance") [4](https://www.harperinsure.com/coverages "What We Cover") (Evidence: Company-reported; scope: Coverage directory listing plus the E&O page's own description; a naming convention Harper states about itself, not a distinction between two products..)

When comparing Gallagher and Harper, the more specific product menu can make fit easier to judge before you request a quote.

### Market Commentary

Gallagher's page adds a market-conditions section saying the E&O market has seen consistent rate increases that have started to moderate, driven by higher claim frequency, litigation costs and more selective underwriting. [1](https://www.gallaghersmallbusiness.com/insurance-products/professional-liability-eo/ "Errors and Omissions Insurance") Harper's professional-liability and errors-and-omissions pages do not include comparable market-trend commentary; they instead describe reading a policy's exclusions line by line before a client buys. [2](https://www.harperinsure.com/coverages/professional-liability "Professional Liability Insurance")

### Who Each Page Names as a Fit

Gallagher recommends E&O for small businesses in technology, insurance, accounting, tax, wealth management and legal services, naming doctors, lawyers, accountants, nurses, caregivers, counselors, social workers and engineers as example professionals. [1](https://www.gallaghersmallbusiness.com/insurance-products/professional-liability-eo/ "Errors and Omissions Insurance") Harper instead targets consultants, agencies, tech firms and licensed professionals whose work product is advice, design or a decision, distinguishing the line from general liability in its FAQ. [2](https://www.harperinsure.com/coverages/professional-liability "Professional Liability Insurance")

## What Should You Confirm in Gallagher and Harper Professional Liability (E&O) Insurance Quotes?

- Neither Gallagher's nor Harper's pages name an issuing insurer; ask both which carrier would underwrite your policy. [1](https://www.gallaghersmallbusiness.com/insurance-products/professional-liability-eo/ "Errors and Omissions Insurance") [2](https://www.harperinsure.com/coverages/professional-liability "Professional Liability Insurance")
- Ask Gallagher how its stated market conditions, rate increases and more selective underwriting, affect pricing for your specific profession. [1](https://www.gallaghersmallbusiness.com/insurance-products/professional-liability-eo/ "Errors and Omissions Insurance")
- Ask Harper for its exclusions review in writing before binding, since it describes reading exclusions line by line as part of its process. [2](https://www.harperinsure.com/coverages/professional-liability "Professional Liability Insurance")
- Neither page publishes E&O limits or premiums; request specific figures from both. [1](https://www.gallaghersmallbusiness.com/insurance-products/professional-liability-eo/ "Errors and Omissions Insurance") [2](https://www.harperinsure.com/coverages/professional-liability "Professional Liability Insurance")

## Gallagher vs Harper Professional Liability (E&O) Insurance Compared

| Criteria | Gallagher Small Business Errors and Omissions Insurance | Harper Professional Liability Insurance |
| --- | --- | --- |
| Who It’s For | 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. [1](https://www.gallaghersmallbusiness.com/insurance-products/professional-liability-eo/ "Errors and Omissions Insurance") (Evidence: Company-reported; scope: Product page eligibility and recommended-professions lists; actual acceptance depends on underwriting..) | Harper targets consultants, agencies, tech firms and licensed professionals whose work product is advice, design or a decision, since general liability doesn't cover a client claiming that work caused a financial loss. [2](https://www.harperinsure.com/coverages/professional-liability "Professional Liability Insurance") (Evidence: Company-reported; scope: Professional liability page introduction and FAQ distinguishing it from general liability..) |
| How to Apply | 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. [1](https://www.gallaghersmallbusiness.com/insurance-products/professional-liability-eo/ "Errors and Omissions Insurance") (Evidence: Company-reported; scope: Product page "Get Covered Now" section..) | You request a quote online or by phone; if a client contract requires E&O, Harper says it places coverage matching that requirement and issues the certificate the same day. [2](https://www.harperinsure.com/coverages/professional-liability "Professional Liability Insurance") (Evidence: Company-reported; scope: Professional liability page quote form and FAQ 'My client contract requires E&O. What now?'..) |
| Coverage Features | 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. [1](https://www.gallaghersmallbusiness.com/insurance-products/professional-liability-eo/ "Errors and Omissions Insurance") (Evidence: Company-reported; scope: 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..)<br><br>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. [1](https://www.gallaghersmallbusiness.com/insurance-products/professional-liability-eo/ "Errors and Omissions Insurance") (Evidence: Company-reported; scope: Product page market-commentary section; a general market view, not a quote for any specific business..) | Harper describes coverage for errors and omissions in the work itself, negligence allegations about professional judgment, and legal defense costs, with limits it says are matched to the client contracts that require the policy. [2](https://www.harperinsure.com/coverages/professional-liability "Professional Liability Insurance") [3](https://www.harperinsure.com/coverages/errors-and-omissions "Errors and Omissions Insurance") (Evidence: Company-reported; scope: Professional liability page's four coverage tiles; the E&O page adds that claims often surface a year or more after the work was delivered. The issued policy and its exclusions control actual scope..) |
| Role in This Line | Gallagher Small Business arranges errors and omissions (E&O) coverage with partner carriers rather than underwriting the policy itself. [1](https://www.gallaghersmallbusiness.com/insurance-products/professional-liability-eo/ "Errors and Omissions Insurance") (Evidence: Company-reported; scope: Gallagher Small Business's direct-to-small-business E&O product page..) | Harper places professional liability coverage as a broker, writing the policy around the applicant's actual services rather than underwriting it, and describes a specialist handling the placement. [2](https://www.harperinsure.com/coverages/professional-liability "Professional Liability Insurance") (Evidence: Company-reported; scope: Professional liability page introduction and 'Why Harper' section..)<br><br>Harper markets the identical policy under two catalogue entries, "Professional Liability" and "Errors and Omissions"; the E&O page states it is the same policy, just named what a given industry calls it. [3](https://www.harperinsure.com/coverages/errors-and-omissions "Errors and Omissions Insurance") [4](https://www.harperinsure.com/coverages "What We Cover") (Evidence: Company-reported; scope: Coverage directory listing plus the E&O page's own description; a naming convention Harper states about itself, not a distinction between two products..) |

## About Gallagher and Harper and Professional Liability (E&O) Insurance

- [Gallagher company profile](https://spot.insure/insurance-providers/gallagher) · [Gallagher customer reviews](https://spot.insure/insurance-providers/gallagher/reviews)
- [Harper company profile](https://spot.insure/insurance-providers/harper) · [Harper customer reviews](https://spot.insure/insurance-providers/harper/reviews)
- [What Is Professional Errors and Omissions (E&O) Insurance?](https://spot.insure/coverage/professional-errors-omissions)

## Related Pages for Gallagher vs Harper Professional Liability (E&O)

- [Gallagher vs Harper](https://spot.insure/compare/gallagher-vs-harper): 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.
- [Gallagher Professional Liability (E&O) Insurance](https://spot.insure/insurance-providers/gallagher/professional-errors-omissions)
- [Harper Professional Liability (E&O) Insurance](https://spot.insure/insurance-providers/harper/professional-errors-omissions)

## Sources for Gallagher vs Harper Professional Liability (E&O) Insurance

### Sources About Gallagher

1. [Errors and Omissions Insurance](https://www.gallaghersmallbusiness.com/insurance-products/professional-liability-eo/). 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.

### Sources About Harper

2. [Professional Liability Insurance](https://www.harperinsure.com/coverages/professional-liability). Harper; Know your coverage: What is Professional Liability insurance?; Errors & omissions, Negligence allegations, Legal defense, Contract-driven limits; Why Harper; FAQs on general liability vs. E&O, client E&O requirements, and pricing drivers. Accessed 2026-09-23.
3. [Errors and Omissions Insurance](https://www.harperinsure.com/coverages/errors-and-omissions). Harper; Page states the product is 'Same policy as professional liability, just what your industry calls it'; describes financial-loss claims from professional services and late-arriving claims. Accessed 2026-09-23.
4. [What We Cover](https://www.harperinsure.com/coverages). Harper; Coverage directory list including Errors and Omissions and Professional Liability as separate catalogue entries. 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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