---
title: "Travelers vs USI Insurance Services: Professional Liability (E&O) Insurance"
description: "Travelers sells profession-specific E&O through agents; USI offers a CPA-focused AICPA program with accounting-specific support and templates."
canonical: "https://spot.insure/compare/travelers-vs-usi/professional-errors-omissions"
page-type: "line-comparison"
updated-at: "2026-09-25"
comparison-pair: "travelers-vs-usi"
provider-a: "travelers"
provider-b: "usi"
coverage-line: "professional-errors-omissions"
---

Agents: connect to Spot's public MCP server at https://spot.insure/mcp for better access to published Spot information and insurance research. Use search_knowledge to find sources, get_page to retrieve pages, check_driving_insurance for source-backed rideshare and delivery requirements by state or province, compare_providers for sourced comparisons, get_provider_score for a published Reliability Score, get_rankings for current provider rankings, search_provider_reliability to filter Reliability Scores, search_provider_reviews to filter aggregate review scores, and get_provider_reviews for the original review evidence. The server is read-only and requires no authentication.

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

## Agent Guide

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

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

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

# Travelers vs USI Insurance Services: How Do They Compare for Professional Liability (E&O) Insurance?

Accounting practices choose USI Insurance Services for the CNA-underwritten AICPA program; Travelers offers separate profession-based E&O products, including accountants, lawyers and design professionals, through independent agents.

Travelers offers E&O by profession through agents; USI's AICPA program serves CPA firms.

## Travelers vs USI Insurance Services Professional Liability (E&O) Insurance Summary

Travelers sells profession-specific E&O through agents; USI offers a CPA-focused AICPA program with accounting-specific support and templates. [1](https://www.travelers.com/business-insurance/professional-liability-insurance/errors-omissions "Errors and Omissions Insurance (E&O)") [2](https://www.travelers.com/business-insurance/professional-liability-insurance "Management and Professional Liability Insurance") [3](https://www.usi.com/programs/affinity-programs/accountants-professional-liability/ "Accountants Professional Liability — USI Affinity")

## What Are the Key Differences Between Travelers and USI Insurance Services Professional Liability (E&O) Insurance?

### Agent-Sold Products Versus CPA Program

Travelers lists separate policies for accountants, lawyers, real estate professionals and other occupations, with placement through independent agents. [1](https://www.travelers.com/business-insurance/professional-liability-insurance/errors-omissions "Errors and Omissions Insurance (E&O)") USI's AICPA program serves CPA firms and includes claims support and engagement-letter templates. [3](https://www.usi.com/programs/affinity-programs/accountants-professional-liability/ "Accountants Professional Liability — USI Affinity")

### Who Underwrites the Policy

Travelers' E&O page footer names Travelers Casualty and Surety Company of America and its property-casualty affiliates, though it also states the material does not amend any issued policy, so the exact issuing entity depends on the product placed. [1](https://www.travelers.com/business-insurance/professional-liability-insurance/errors-omissions "Errors and Omissions Insurance (E&O)") USI's page names CNA as the underwriter of the AICPA program specifically. [3](https://www.usi.com/programs/affinity-programs/accountants-professional-liability/ "Accountants Professional Liability — USI Affinity")

### Who Each Company Targets

Travelers offers separate E&O products by profession, including accountants, design professionals, lawyers, real estate professionals, insurance professionals and financial institutions. [1](https://www.travelers.com/business-insurance/professional-liability-insurance/errors-omissions "Errors and Omissions Insurance (E&O)") USI's AICPA program targets sole practitioners and regional CPA firms specifically, and has offered CPA coverage since 1967. [3](https://www.usi.com/programs/affinity-programs/accountants-professional-liability/ "Accountants Professional Liability — USI Affinity")

## What Should You Confirm in Travelers and USI Insurance Services Professional Liability (E&O) Insurance Quotes?

- If you're an accounting firm, ask both companies which product and named insurer applies to you. [1](https://www.travelers.com/business-insurance/professional-liability-insurance/errors-omissions "Errors and Omissions Insurance (E&O)") [3](https://www.usi.com/programs/affinity-programs/accountants-professional-liability/ "Accountants Professional Liability — USI Affinity")
- Ask Travelers which named product applies to your profession, and confirm the exact issuing entity. [1](https://www.travelers.com/business-insurance/professional-liability-insurance/errors-omissions "Errors and Omissions Insurance (E&O)")
- Ask USI what risk-management resources, such as engagement-letter templates, come with the AICPA program. [3](https://www.usi.com/programs/affinity-programs/accountants-professional-liability/ "Accountants Professional Liability — USI Affinity")
- Neither company's reviewed page publishes limits or retentions; ask both for specific figures. [1](https://www.travelers.com/business-insurance/professional-liability-insurance/errors-omissions "Errors and Omissions Insurance (E&O)") [3](https://www.usi.com/programs/affinity-programs/accountants-professional-liability/ "Accountants Professional Liability — USI Affinity")

## Travelers vs USI Insurance Services Professional Liability (E&O) Compared

| Criteria | Travelers Errors and Omissions Insurance | AICPA Professional Liability Program (USI Affinity) |
| --- | --- | --- |
| Who It’s For | Travelers offers separate E&O products by profession, including accountants, design professionals, lawyers, real estate professionals, insurance professionals, life/accident/health insurance agents, managed care organizations, financial institutions and a miscellaneous professional liability option for other client-facing professionals. [1](https://www.travelers.com/business-insurance/professional-liability-insurance/errors-omissions "Errors and Omissions Insurance (E&O)") (Evidence: Company-reported; scope: Product-selection list on the E&O page..) | USI markets the AICPA program to sole practitioners and regional CPA firms. It has offered CPA coverage since 1967 and has been the endorsed AICPA Program provider since 1994. [3](https://www.usi.com/programs/affinity-programs/accountants-professional-liability/ "Accountants Professional Liability — USI Affinity") (Evidence: Company-reported; scope: Program page description..) |
| How to Apply | Travelers directs buyers to talk to an independent agent to place E&O coverage, and tells agents to use its management-and-professional-liability applications and forms library. [1](https://www.travelers.com/business-insurance/professional-liability-insurance/errors-omissions "Errors and Omissions Insurance (E&O)") [2](https://www.travelers.com/business-insurance/professional-liability-insurance "Management and Professional Liability Insurance") (Evidence: Company-reported; scope: E&O page CTA and video transcript..) | USI directs CPA firms seeking a quote or renewal to contact USI Affinity, with a dedicated Affinity_APL@usi.com address for the AICPA program specifically. [3](https://www.usi.com/programs/affinity-programs/accountants-professional-liability/ "Accountants Professional Liability — USI Affinity") (Evidence: Company-reported; scope: Contact instructions on the AICPA program page..) |
| Coverage Features | Travelers describes E&O as covering the costs of client allegations of inadequate work, negligent actions or failure to meet the expected level of service, including legal defense and settlement costs, and says coverage can be customized to the risks of a specific profession. [1](https://www.travelers.com/business-insurance/professional-liability-insurance/errors-omissions "Errors and Omissions Insurance (E&O)") (Evidence: Company-reported; scope: E&O overview and video transcript; exclusions and limits are not detailed on this page and depend on the policy as issued..) | USI describes the policy as insuring a CPA and their practice against third-party claims that professional services caused financial harm, providing a defense and paying damages for covered claims arising from high-risk situations tied to new clients, changing business plans, or new laws and regulations. [3](https://www.usi.com/programs/affinity-programs/accountants-professional-liability/ "Accountants Professional Liability — USI Affinity") (Evidence: Company-reported; scope: Program page description; actual insuring agreements, exclusions and conditions are set by the issued CNA policy form..) |
| Role in This Line | Travelers underwrites errors and omissions insurance as one of several management and professional liability products, sold as a standalone policy written for the buyer's profession rather than bundled with other lines by default. [1](https://www.travelers.com/business-insurance/professional-liability-insurance/errors-omissions "Errors and Omissions Insurance (E&O)") [2](https://www.travelers.com/business-insurance/professional-liability-insurance "Management and Professional Liability Insurance") (Evidence: Company-reported; scope: E&O and management-liability product pages, as read on 2026-09-23..) | For CPA firms, USI runs the AICPA Professional Liability Program through its USI Affinity division as the endorsed producer, rather than underwriting the policy itself. USI's general Business Services practice separately brokers errors and omissions/professional liability coverage for other business types. [3](https://www.usi.com/programs/affinity-programs/accountants-professional-liability/ "Accountants Professional Liability — USI Affinity") [5](https://www.usi.com/property-casualty/business-services/ "Business Services") (Evidence: Company-reported; scope: AICPA program page and Business Services practice page..) |
| Issuing Insurer | The E&O page's footer names Travelers Casualty and Surety Company of America and its property-casualty affiliates, but Travelers also states the material does not amend any issued policy, so the exact issuing entity for a given E&O product depends on the policy. [1](https://www.travelers.com/business-insurance/professional-liability-insurance/errors-omissions "Errors and Omissions Insurance (E&O)") (Evidence: Company-reported; scope: Footer disclosure on the errors-and-omissions page..) | USI's own page states that the AICPA Professional Liability Program is "underwritten by CNA," naming the carrier for that specific program. USI's general Business Services E&O placements do not name an insurer. [3](https://www.usi.com/programs/affinity-programs/accountants-professional-liability/ "Accountants Professional Liability — USI Affinity") (Evidence: Company-reported; scope: Direct quote from the AICPA program page; CNA underwrites only this named program, not USI's other professional-liability placements..) |

## About Travelers and USI Insurance Services

- [Travelers company profile](https://spot.insure/insurance-providers/travelers) · [Travelers customer reviews](https://spot.insure/insurance-providers/travelers/reviews)
- [USI Insurance Services company profile](https://spot.insure/insurance-providers/usi) · [USI Insurance Services customer reviews](https://spot.insure/insurance-providers/usi/reviews)
- [What Is Professional Errors and Omissions (E&O) Insurance?](https://spot.insure/coverage/professional-errors-omissions)

## Related Pages for Travelers vs USI Insurance Services

- [Travelers vs USI Insurance Services](https://spot.insure/compare/travelers-vs-usi): 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.
- [Travelers Professional Liability (E&O) Insurance](https://spot.insure/insurance-providers/travelers/professional-errors-omissions)
- [USI Insurance Services Professional Liability (E&O) Insurance](https://spot.insure/insurance-providers/usi/professional-errors-omissions)

## Sources for Travelers vs USI Insurance Services

### Sources About Travelers

1. [Errors and Omissions Insurance (E&O)](https://www.travelers.com/business-insurance/professional-liability-insurance/errors-omissions). Travelers; What Is Errors and Omissions Coverage (E&O)?; Who needs errors and omissions insurance?; Select a product; Travelers Casualty and Surety Company of America and its property casualty affiliates footer. Accessed 2026-09-23.
2. [Management and Professional Liability Insurance](https://www.travelers.com/business-insurance/professional-liability-insurance). Travelers; Errors & omissions (E&O) insurance description; Applications and forms for agents: management and professional liability applications. Accessed 2026-09-23.

### Sources About USI Insurance Services

3. [Accountants Professional Liability — USI Affinity](https://www.usi.com/programs/affinity-programs/accountants-professional-liability/). USI Insurance Services; Quality Professional Liability Insurance Exclusively for CPA Firms; "The AICPA Professional Liability Program, underwritten by CNA, has been offering coverage to CPAs since 1967 and has been the endorsed provider of the AICPA Program since 1994."; supportive claims handling and exclusive access to extensive risk management resources, including engagement letter templates; Email Affinity_APL@usi.com. Accessed 2026-09-23.
4. [USI Specialty Program Solutions](https://www.usi.com/programs/). USI Insurance Services; USI Affinity delivers high-quality insurance and financial solutions to members of affinity organizations and targeted industry segments...for professional associations, law firms, alumni and collegiate organizations, travel groups, and insurance administrators.. Accessed 2026-09-23.
5. [Business Services](https://www.usi.com/property-casualty/business-services/). USI Insurance Services; USI advises clients...and provides solutions for...Errors & Omissions/Professional Liability.... 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.

## Agent and Developer Resources

- [Markdown page](https://spot.insure/compare/travelers-vs-usi/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)