At Bay vs Zurich: Professional Liability / E&O Insurance

Zurich U.S. targets technology, manufacturing and third-party service providers with Pro Plus, a suite of coverages in one policy available in most states. At-Bay provides primary miscellaneous professional liability for all revenue sizes up to $5 million, subject to state rules.

Kearny Risk organizes these comparisons for firms whose advice, content or technology creates professional exposures.Research updated 2026-09-30

At-Bay offers primary miscellaneous professional liability with limits up to $5 million and routes submissions through brokers. Zurich describes E&O for professional-service mistakes and failure to deliver promised services in a modular suite.

Sources reviewed

  1. 01
    At-Bay Doubles Miscellaneous Professional Liability Appetite

    At-Bay · September 28, 2023 release: final paragraph before Media Contacts · accessed 2026-09-16

  2. 02
    Broker Platform

    At-Bay · How it works: Create a quote, Customize your quote, Bind your policy, Manage renewals; FAQs · accessed 2026-09-16

  3. 03
    Licenses

    At-Bay · Producer introduction; agency and surplus-lines footer naming At-Bay Insurance Services LLC · accessed 2026-09-16

  4. 04
    MPL Insurance: Coverage Highlights & Appetite

    At-Bay · MPL Coverage Highlights list; MPL Appetite paragraph; Send us your submissions; "material on this page is intended for use solely by properly licensed insurance professionals" · accessed 2026-09-23

  5. 05
    Professional Liability – US Direct Errors and Omissions Insurance

    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

  6. 06
    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

  7. 07
    FAQ: Professional liability insurance

    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

  8. 08
    Get business insurance

    U.S. Small Business Administration · Six common types of business insurance table · accessed 2026-09-16

  9. 09
    Errors and Omissions Insurance – E&O | Zurich Insurance

    Zurich U.S. · Pro Plus coverage, targeted classes, policy structure, claims and underwriting · accessed 2026-09-28

What Are the Key Differences Between At-Bay and Zurich U.S. Professional Liability (E&O) Insurance?

Published Limit and Covered Professional Loss

At-Bay publishes primary MPL limits up to $5 million and lists defense for disciplinary proceedings, independent-contractor coverage, and other form features. Zurich describes E&O responding to professional-service negligence, mistakes, or failure to deliver promised services, including defense costs, court fees, settlements, and judgments, but its reviewed record gives no limit figure. Compare the proposed limit with the actual services and ask which features are included in the quoted form. [4] [4] [9]

Broker Submission and Modular Placement

At-Bay directs licensed insurance professionals to submit MPL by email or use its Broker Platform to quote, adjust limits and retentions, and bind. Zurich describes Pro Plus as modular and says admitted E&O is available in most states. An agent can compare At-Bay’s specified broker workflow with Zurich’s available state and modules, then confirm whether the applicant’s profession qualifies for either form. [4] [4] [9]

What Should You Confirm in At-Bay and Zurich U.S. Professional Liability (E&O) Insurance Quotes?

  • Ask At-Bay which state restrictions and eligibility rules apply to the $5 million ceiling and identify the current issuing insurer. [4] [4]
  • Ask Zurich which Pro Plus modules and limit are available for your profession and state. [9] [9]

Areas of coverage

At-Bay

  • role: At-Bay markets MPL as one of its own named insurance products, sold through its disclosed producer, At-Bay Insurance Services LLC, with the product page directed at "properly licensed insurance professionals" submitting business rather than at direct retail buyers. Current MPL product page and license disclosures; this describes the distribution channel, not who bears the underwriting risk.company-reportedSource ↗Source ↗
  • insurer: The current MPL product page does not name the insurer that issues the policy. A September 2023 press release named United Specialty Company in connection with MPL, but that historical reference does not establish the current issuing insurer for a new MPL quote. Reviewed MPL page as of 2026-09-23 and the September 2023 press release; restates the existing provider fact that MPL's current issuer is unresolved, distinct from the August 2023 Cyber/Tech E&O transition to At-Bay Specialty Insurance Company paper.not-foundSource ↗Source ↗
  • eligibility: At-Bay says it provides primary MPL for businesses of all revenue sizes with limits up to $5 million, subject to state restrictions and eligibility requirements detailed in a separate MPL appetite guide. Current MPL appetite paragraph; the linked appetite guide's specific eligibility requirements were not independently opened for this record.company-reportedSource ↗
  • coverage: At-Bay lists MPL coverage highlights including automatic coverage for acquired subsidiaries, claims-made-and-reported coverage, coverage for independent contractors, disciplinary-proceedings defense, a duty-to-defend contract, personal-injury coverage (including emotional distress), punitive damages where insurable, a professional-services definition written for each insured, and an 80/20 hammer clause. Product-page coverage-highlights list; an 80/20 hammer clause is a settlement provision where the insurer pays 80% and the insured pays 20% of costs after the insured declines a recommended settlement. The issued policy and declarations control actual wording, limits and exclusions.company-reportedSource ↗
  • limits: At-Bay publishes an MPL limit ceiling of up to $5 million, with state restrictions that are not detailed on the product page itself. Current appetite paragraph; this is an advertised ceiling, not a guaranteed available limit for any specific applicant.company-reportedSource ↗
  • application: At-Bay directs MPL submissions to underwriting by email or through automatic quotes on its Broker Platform, which At-Bay describes as a workflow of creating a quote, customizing limits and retentions, and binding the policy. Current submission instructions and the general broker-platform workflow description; MPL-specific automation details were not separately confirmed.company-reportedSource ↗Source ↗

Zurich U.S.

  • coverage: Zurich says E&O can address professional-service negligence, mistakes or failure to deliver promised services, including defense costs, court fees, settlements and judgments. Zurich U.S. brand; exact underwriting company may vary by policy and state; professional errors and omissions; United States. Company-reported product description; actual coverage, underwriting, limits and state availability are governed by issued policy terms.company-reportedSource ↗
  • eligibility: Zurich names technology, manufacturing and third-party service providers among targeted E&O classes. Zurich U.S. brand; exact underwriting company may vary by policy and state; professional errors and omissions; United States. Company-reported product description; actual coverage, underwriting, limits and state availability are governed by issued policy terms.company-reportedSource ↗
  • coverage: Zurich’s Pro Plus is a modular suite of coverages in one policy; admitted E&O coverage is available in most states. Zurich U.S. brand; exact underwriting company may vary by policy and state; professional errors and omissions; United States. Company-reported product description; actual coverage, underwriting, limits and state availability are governed by issued policy terms.company-reportedSource ↗
  • claims: Zurich describes E&O claims specialists and underwriters and says claims are reviewed under policy terms with legal counsel coordination. Zurich U.S. brand; exact underwriting company may vary by policy and state; professional errors and omissions; United States. Company-reported product description; actual coverage, underwriting, limits and state availability are governed by issued policy terms.company-reportedSource ↗

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