---
title: "Relm Insurance vs USI Insurance Services: Professional Liability (E&O) Insurance"
description: "Relm describes a dedicated Accountants Errors and Omissions product covering misconduct accusations and financial misstatements, while USI's AICPA Professional Liability Program targets CPA firms specifically and is underwritten by CNA."
canonical: "https://spot.insure/compare/relm-vs-usi/professional-errors-omissions"
page-type: "line-comparison"
updated-at: "2026-09-25"
comparison-pair: "relm-vs-usi"
provider-a: "relm"
provider-b: "usi"
coverage-line: "professional-errors-omissions"
---

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

## Agent Guide

**What this page is:** Focused comparison of Relm Insurance 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 Relm Insurance 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:**
- Relm Insurance vs USI Insurance Services for Professional Liability (E&O) Insurance: how do they differ?
- Which is better for Professional Liability (E&O) Insurance, Relm Insurance or USI Insurance Services?
- What does Relm Insurance 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: Relm Insurance 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:**
- [Relm Insurance vs USI Insurance Services](https://spot.insure/compare/relm-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
- [Relm Insurance profile](https://spot.insure/insurance-providers/relm) — provider profile
- [USI Insurance Services profile](https://spot.insure/insurance-providers/usi) — provider profile

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

USI Insurance Services is the route for CPA firms through the AICPA program underwritten by CNA; Relm Insurance has its own Accountants E&O product plus lines for emerging sectors like space and AI.

Relm's Accountants E&O and USI's AICPA program both target accounting professionals, but the two structures and named insurers differ.

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

Relm describes a dedicated Accountants Errors and Omissions product covering misconduct accusations and financial misstatements, while USI's AICPA Professional Liability Program targets CPA firms specifically and is underwritten by CNA. [1](https://relminsurance.com/lines-of-business/professional-lines-and-errors-and-omissions-insurance/ "Professional Lines and Errors and Omissions Insurance") [2](https://www.usi.com/programs/affinity-programs/accountants-professional-liability/ "Accountants Professional Liability — USI Affinity")

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

### Two Different Accounting-Focused Products

Relm describes a distinct Accountants Errors and Omissions product, separate from its general E&O line, covering misconduct accusations, financial misstatements, miscalculations and late filings:

Relm describes a distinct Accountants Errors and Omissions product covering misconduct accusations, financial misstatements, miscalculations, late filings, and in some cases breach of contract, including legal defense costs, settlements and damages. [1](https://relminsurance.com/lines-of-business/professional-lines-and-errors-and-omissions-insurance/ "Professional Lines and Errors and Omissions Insurance") (Evidence: Company-reported; scope: Professional Lines page 'Accountants Errors and Omissions' section; a related but separate product from Relm's general E&O line..)

USI's most detailed E&O offering is the AICPA Professional Liability Program, run through its USI Affinity division specifically for CPA firms, which it has provided since 1994. [2](https://www.usi.com/programs/affinity-programs/accountants-professional-liability/ "Accountants Professional Liability — USI Affinity")

When comparing Relm Insurance and USI Insurance Services, use the stated fit categories to rule either provider in or out before spending time on an application.

### Who Underwrites the Policy

Relm's page does not name a specific issuing insurer for its Accountants E&O product. [1](https://relminsurance.com/lines-of-business/professional-lines-and-errors-and-omissions-insurance/ "Professional Lines and Errors and Omissions Insurance") USI's page names CNA as the underwriter of the AICPA program specifically, though its general Business Services practice, which brokers E&O for other business types, does not name an insurer. [2](https://www.usi.com/programs/affinity-programs/accountants-professional-liability/ "Accountants Professional Liability — USI Affinity")

### Who Each Company Targets

Relm's accounting-focused product sits inside a broader family of niche E&O lines that also cover consultants, financial institutions, lawyers, lenders and media. [1](https://relminsurance.com/lines-of-business/professional-lines-and-errors-and-omissions-insurance/ "Professional Lines and Errors and Omissions Insurance") USI's page targets sole practitioners and regional CPA firms specifically through the AICPA program, and has offered CPA coverage since 1967. [2](https://www.usi.com/programs/affinity-programs/accountants-professional-liability/ "Accountants Professional Liability — USI Affinity")

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

- If you're a CPA firm, ask both companies to confirm which named insurer would issue your policy. [1](https://relminsurance.com/lines-of-business/professional-lines-and-errors-and-omissions-insurance/ "Professional Lines and Errors and Omissions Insurance") [2](https://www.usi.com/programs/affinity-programs/accountants-professional-liability/ "Accountants Professional Liability — USI Affinity")
- Ask Relm whether its Accountants E&O or a different niche line fits your specific accounting role. [1](https://relminsurance.com/lines-of-business/professional-lines-and-errors-and-omissions-insurance/ "Professional Lines and Errors and Omissions Insurance")
- Ask USI what risk-management resources, such as engagement-letter templates, come with the AICPA program. [2](https://www.usi.com/programs/affinity-programs/accountants-professional-liability/ "Accountants Professional Liability — USI Affinity")
- Neither company's reviewed page publishes limits or retentions for these products; ask both for specific figures. [1](https://relminsurance.com/lines-of-business/professional-lines-and-errors-and-omissions-insurance/ "Professional Lines and Errors and Omissions Insurance") [2](https://www.usi.com/programs/affinity-programs/accountants-professional-liability/ "Accountants Professional Liability — USI Affinity")

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

| Criteria | Relm Errors and Omissions Insurance | AICPA Professional Liability Program (USI Affinity) |
| --- | --- | --- |
| Who It’s For | Relm targets clients in emerging sectors such as space, digital assets, AI and biotech, describing general E&O as protection for the provision of specialized products, advice or services, and Miscellaneous E&O for niche fields like robotics consulting and space logistics that don't fit an established category. [1](https://relminsurance.com/lines-of-business/professional-lines-and-errors-and-omissions-insurance/ "Professional Lines and Errors and Omissions Insurance") (Evidence: Company-reported; scope: Professional Lines page framing; not a guarantee of eligibility for a particular company..)<br><br>Relm notes that some professionals, including attorneys, are required by federal or state law to carry errors and omissions insurance, and that Financial Institutions Professional Indemnity is mandated by some regulators, including the UK's Financial Conduct Authority. [1](https://relminsurance.com/lines-of-business/professional-lines-and-errors-and-omissions-insurance/ "Professional Lines and Errors and Omissions Insurance") (Evidence: Company-reported; scope: Professional Lines page; general regulatory context, not a jurisdiction-specific legal determination for a particular buyer..) | 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. [2](https://www.usi.com/programs/affinity-programs/accountants-professional-liability/ "Accountants Professional Liability — USI Affinity") (Evidence: Company-reported; scope: Program page description..) |
| Coverage Features | Relm says its general E&O line covers claims of professional negligence, mistakes or faulty recommendations, and failure to deliver on agreed services, while Consultants E&O specifically defends against allegations of negligence, poor advice or failure to deliver adequate services. [1](https://relminsurance.com/lines-of-business/professional-lines-and-errors-and-omissions-insurance/ "Professional Lines and Errors and Omissions Insurance") (Evidence: Company-reported; scope: Professional Lines page general description; the issued policy and declarations control..)<br><br>Relm describes a distinct Accountants Errors and Omissions product covering misconduct accusations, financial misstatements, miscalculations, late filings, and in some cases breach of contract, including legal defense costs, settlements and damages. [1](https://relminsurance.com/lines-of-business/professional-lines-and-errors-and-omissions-insurance/ "Professional Lines and Errors and Omissions Insurance") (Evidence: Company-reported; scope: Professional Lines page 'Accountants Errors and Omissions' section; a related but separate product from Relm's general E&O line..) | 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. [2](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 | Relm groups a family of professional liability products under Professional Lines and Errors and Omissions, distinguishing a general E&O line from specialized versions for accountants, consultants, financial institutions, lawyers, lenders, media, trust/fund administrators and other niches. [1](https://relminsurance.com/lines-of-business/professional-lines-and-errors-and-omissions-insurance/ "Professional Lines and Errors and Omissions Insurance") (Evidence: Company-reported; scope: Relm line-of-business page (Relm sells through brokers); not a statement identifying the issuing insurer for a given placement. This record covers the general 'Errors and Omissions' and 'Consultants' and 'Miscellaneous' entries; Relm's media and lawyers E&O sub-products are addressed in separate offering records where scoped..) | 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. [2](https://www.usi.com/programs/affinity-programs/accountants-professional-liability/ "Accountants Professional Liability — USI Affinity") [4](https://www.usi.com/property-casualty/business-services/ "Business Services") (Evidence: Company-reported; scope: AICPA program page and Business Services practice page..) |

## About Relm Insurance and USI Insurance Services

- [Relm Insurance company profile](https://spot.insure/insurance-providers/relm) · [Relm Insurance customer reviews](https://spot.insure/insurance-providers/relm/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 Relm Insurance vs USI Insurance Services

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

## Sources for Relm Insurance vs USI Insurance Services

### Sources About Relm Insurance

1. [Professional Lines and Errors and Omissions Insurance](https://relminsurance.com/lines-of-business/professional-lines-and-errors-and-omissions-insurance/). Relm Insurance; Errors and Omissions; Accountants Errors and Omissions; Consultants Errors and Omissions; Financial Institutions Professional Indemnity; Miscellaneous Errors and Omissions. Accessed 2026-09-23.

### Sources About USI Insurance Services

2. [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.
3. [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.
4. [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.

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