At Bay vs Hub International: Professional Liability / E&O Insurance

HUB International has you connect with a broker and has no online quote flow, while At-Bay supplies its own MPL, up to $5 million, to licensed insurance professionals who submit business.

Kearny Risk organizes these comparisons for firms whose advice, content or technology creates professional exposures.Research updated 2026-09-25

HUB describes prior-acts coverage, optional tail and incident-reporting steps; At-Bay publishes a duty to defend and an 80/20 hammer clause in its MPL.

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
    Errors and Omissions (E&O) Insurance Coverage

    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

  7. 07
    Professional Liability Insurance Brokers

    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

  8. 08
    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

  9. 09
    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

  10. 10
    Get business insurance

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

What Are the Key Differences Between At-Bay and HUB International Professional Liability (E&O) Insurance?

Protecting Past Work and Reporting Later

HUB says its E&O policies are typically claims-made, with prior-acts coverage tied to a retroactive date and optional tail coverage after the policy ends. At-Bay lists a duty-to-defend contract, automatic subsidiary coverage and an 80/20 hammer clause instead. If you are changing carriers, compare the retroactive date and cost of extended reporting against At-Bay’s quoted terms. [6] [4]

Who Arranges the Policy

HUB brokers E&O tailored to business size, industry, location and requested limits. At-Bay routes MPL through its producer and licensed insurance professionals. The broker route affects who gathers and submits your information; ask which insurer will issue the final policy. [7] [3]

What to Do After an Incident

HUB tells policyholders to notify their broker and carrier and provide an incident narrative. At-Bay’s MPL page focuses on product features and does not describe a comparable reporting procedure. Ask At-Bay for the claims contact and notice deadline before you buy. [6] [4]

What Should You Confirm in At-Bay and HUB International Professional Liability (E&O) Insurance Quotes?

  • Ask HUB for the retroactive date, prior-acts coverage and tail-coverage price. [6]
  • Ask At-Bay for the insurer and actual limit, including applicable state restrictions. [4]
  • Get the incident-reporting process and carrier claims contact from both. [6] [4]

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 ↗

HUB International

  • role: HUB brokers professional liability, which it also calls errors and omissions (E&O) insurance, rather than underwriting the coverage itself. Professional liability and E&O product pages as read 2026-09-23; neither names an issuing insurer.company-reportedSource ↗Source ↗
  • coverage: 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. Product-page coverage description; the issued policy and its exclusions control an actual claim.company-reportedSource ↗
  • eligibility: 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. Combined professional-liability and E&O industry lists; not a published underwriting appetite by state.company-reportedSource ↗Source ↗
  • coverage: 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. E&O product-page structure description; specific limits and retroactive dates are set on the quote and declarations.company-reportedSource ↗
  • insurer: Neither the professional liability nor the E&O product page names an issuing insurer; HUB places this coverage with insurers that vary by client and placement. Checked both pages on 2026-09-23; no carrier is disclosed on either.not-foundSource ↗Source ↗
  • claims: HUB's E&O page tells policyholders to notify their broker and carrier as soon as possible after an incident and submit documentation including a narrative of the events leading up to the claim. E&O product-page claims-notification guidance; a general process description, not an outcome measurement.company-reportedSource ↗
  • application: HUB directs prospects to connect with a broker; the pages describe professional liability/E&O policies as customized to business size, industry, location, risk base and desired limits, without an online quote flow. Product-page call to action and customization description as read 2026-09-23.company-reportedSource ↗Source ↗

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