At Bay vs Markel: Technology E&O Insurance

Markel Insurance serves IT service firms, software and SaaS companies, hardware makers and consultants, and you contact its underwriting team or a broker. At-Bay states its range: limits to $10 million, revenue to $5 billion.

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

What Are the Key Differences Between At-Bay and Markel Insurance Tech E&O Insurance?

Revenue and Limit Range

At-Bay says it writes primary and excess Tech E&O for businesses with revenue up to $5 billion and limits up to $10 million; broker-platform automated quotes are narrower, up to $100 million in revenue and $3 million in limits. Markel lists software/SaaS, hardware, and consultants as target technology businesses but gives no comparable ceiling in its record. A large technology company should distinguish At-Bay's underwriting appetite from the broker platform's automated bounds and ask Markel for available capacity. [5] [8]

Contract, Negligence, and IP Terms

At-Bay names coding errors, failed implementations, network outages, and contractual indemnity, and says its wording extends breach-of-contract and IP protection to specified scenarios such as trade-secret misappropriation and source-code license violations. Markel describes professional liability for technology services broadly but does not enumerate those terms in its offering record. If customer contracts promise delivery or indemnity, compare the exact form language rather than relying on the product label. [5] [8]

Security Services and Quote Route

At-Bay includes access to Stance—vulnerability monitoring, vCISO advice, tabletop exercises, and security-awareness training—with each Tech E&O policy; MDR is a separate purchase. At-Bay accepts email submissions or broker-platform quotes, while Markel directs buyers or brokers to contact its underwriting team. Ask whether Markel offers comparable services and which route fits your revenue and requested limit. [5] [8]

What Should You Confirm in At-Bay and Markel Insurance Tech E&O Insurance Quotes?

  • Ask At-Bay whether your revenue and limit qualify for automated quoting or need an underwriting submission, and confirm the issuer on the actual quote. [5] [2]

  • Ask Markel for its available Tech E&O limit and whether the form addresses contract indemnity, source-code disputes, and included security services. [8]

Areas of coverage

At-Bay

  • role: At-Bay places Tech E&O insurance through its disclosed producer, At-Bay Insurance Services LLC, which is licensed as an insurance producer in all 50 states. At-Bay says eligible new excess-and-surplus (E&S) Tech E&O business has been written on its own carrier paper, At-Bay Specialty Insurance Company, since August 2023. Producer role from the current license page; carrier role from a 2023 transition announcement covering Cyber and Tech E&O together, not confirmed for every current quote.company-reportedSource ↗Source ↗
  • insurer: The current Tech E&O product page does not name an issuing insurer. At-Bay's 2023 announcement says new E&S Tech E&O business is quoted on At-Bay Specialty Insurance Company paper, but that is a historical statement, not a per-quote disclosure. Tech E&O product page checked today names no insurer; the carrier-transition release is dated August 2023 and does not cover every current state or account.company-reportedSource ↗Source ↗
  • coverage: At-Bay says its Tech E&O policy expands breach-of-contract coverage beyond a standard technology liability policy, carries no exclusion for breach of warranties, guarantees or consequential damages, and extends intellectual-property infringement coverage to trade-secret misappropriation, cybersquatting, improper deep-linking and source-code license violations, in addition to standard software copyright infringement. Product-page coverage highlights; the issued policy and endorsements control actual terms.company-reportedSource ↗
  • coverage: At-Bay describes negligence coverage for improper installations, coding errors, data-processing flaws, failed implementations and network outages, plus contractual-indemnity coverage for obligations a technology company owes customers from an alleged wrongful act. It also counts service credits issued to settle a claim as payable damages under the policy. Product-page coverage highlights; the issued policy and endorsements control actual terms.company-reportedSource ↗
  • limits: At-Bay says it writes primary and excess Tech E&O insurance for businesses with revenue up to $5 billion and limits up to $10 million. Through its Broker Platform, brokers can get automated quotes only for businesses up to $100 million in revenue and $3 million in limits. Published appetite ceilings, not guaranteed offers; underwriting and the appetite guide control individual accounts.company-reportedSource ↗
  • services: Every At-Bay Tech E&O policy includes access to At-Bay Stance, a security platform with vulnerability monitoring, vCISO advisory and tabletop exercises, and security awareness training, the same InsurSec package structure marketed with its cyber product. Managed detection and response (MDR) is a separate purchase sold by At-Bay Security, LLC. Product-page InsurSec and footnote descriptions; MDR pricing is described as estimated and subject to change.company-reportedSource ↗
  • application: You apply for At-Bay Tech E&O coverage by emailing a submission to underwriting@at-bay.com or by requesting an automated quote through At-Bay's Broker Platform. Product-page submission instructions; the Broker Platform route is limited to accounts within its lower appetite ceilings.company-reportedSource ↗
  • claims: At-Bay's claims-handling page describes a cyber incident roadmap and breach-coach hotline for ransomware and system-interruption events, but the reviewed page does not describe a separate process for a Tech E&O claim that does not involve a cyber incident, such as a professional-liability or contract dispute. Claims-handling page as read on 2026-09-23; does not establish that no Tech E&O-specific process exists, only that this page does not describe one.not-foundSource ↗

Markel Insurance

  • role: Markel describes offering technology errors omissions for the audience stated on the cited product page. technology errors omissions marketed by markel; scope is limited to the cited official product overview and described audience. This is not a policy form or a universal eligibility statement.company-reportedSource ↗
  • eligibility: IT and technology service businesses, including software/SaaS, hardware businesses, and consultants listed by Markel. technology errors omissions marketed by markel; scope is limited to the cited official product overview and described audience. This is not a policy form or a universal eligibility statement.company-reportedSource ↗
  • coverage: The cited product page describes professional liability for broadly defined technology services, including software/SaaS, hardware, and consulting examples. Marketing description only; actual coverage, exclusions, conditions, limits, and availability depend on the issued policy and jurisdiction. technology errors omissions marketed by markel; scope is limited to the cited official product overview and described audience. This is not a policy form or a universal eligibility statement.company-reportedSource ↗
  • application: The page invites prospective customers or brokers to contact Markel or the named underwriting team. The page does not establish a quote, bind, or coverage-effective timeline. technology errors omissions marketed by markel; scope is limited to the cited official product overview and described audience. This is not a policy form or a universal eligibility statement.company-reportedSource ↗
  • limits: The cited overview does not set a universal limit or retention for this line. Ask for the proposed policy form, limits, retentions, exclusions, and conditions in the quote. Only the cited marketing page was reviewed for published limit and retention information; no policy-form entitlement is inferred.not-disclosedSource ↗

At-Bay describes primary and excess Tech E&O limits up to $10 million for companies up to $5 billion in revenue, with Stance services included. Markel describes technology E&O for IT businesses, including software/SaaS, hardware, and consultants, but does not publish a comparable limit in its offering record.

Sources reviewed

  1. 01
    Chubb DigiTech Enterprise Risk Management Policy — Technology E&O, Cyber and Privacy Short Form Application

    ACE American Insurance Company / Chubb · Claims-made notice p.1; §2 Nature of Operations product/service schedule pp.2–3; §7 Technology E&O pp.4–5; §9–10 current and desired coverage pp.5–6 · accessed 2026-09-16

  2. 02
    At-Bay Begins Issuing Policies on its own E&S Paper

    At-Bay · August 9, 2023 release: "At-Bay ... has begun issuing Cyber and Tech E&O policies under its Delaware-based Excess and Surplus (E&S) carrier, At-Bay Specialty Insurance Company"; "All E&S Cyber and Tech E&O new business in eligible states and territories is now being quoted on At-Bay Specialty Insurance Company paper, as of August 7, 2023" · accessed 2026-09-23

  3. 03
    Claims Handling

    At-Bay · At-Bay Cyber Incident Roadmap; Call an At-Bay Breach Coach; The At-Bay Claims Team · accessed 2026-09-23

  4. 04
    Licenses

    At-Bay · At-Bay Insurance Services LLC producer introduction and 50-state P&C/surplus-lines license table · accessed 2026-09-23

  5. 05
    Tech E&O Insurance Coverage and Policy Highlights

    At-Bay · Tech E&O Coverage Highlights; Primary & Excess Appetite; InsurSec Packages (Core, Advanced, Complete); footnotes 1–7 · accessed 2026-09-23

  6. 06
    DigiTech Enterprise Risk Management

    Chubb · Coverage Synopsis > Third-Party Liability Coverage > Technology Errors and Omissions; Cyber, Privacy and Network Security Liability; footer product-summary disclaimer · accessed 2026-09-16

  7. 07
    Insurance and Bonding Guidelines

    Georgia Department of Administrative Services · Professional Liability / Errors and Omissions p.6; Technology Errors & Omissions (Cyber Liability) §9 pp.7–8 · accessed 2026-09-16

  8. 08
    IT Professionals E&O Insurance

    Markel · Who is this for; software/SaaS, hardware, consultants; professional liability and cyber sections. · accessed 2026-09-30

  9. 09
    Glossary of Insurance Terms

    National Association of Insurance Commissioners · Professional Errors and Omissions Liability; Errors and Omissions Liability | Professional Liability other than Medical · accessed 2026-09-16

  10. 10
    Appendix J – Contractor’s Insurance Requirements, Information Technology Umbrella Contract – Manufacturer Based (Statewide)

    New York State Office of General Services · §4 Technology Errors and Omissions, printed p.6 / PDF p.6; claims-made tail note · accessed 2026-09-16

  11. 11
    Technology Errors and Omissions Insurance

    The Hartford · What Is Technology Errors and Omissions Insurance?; differences between cyber liability and errors and omissions; How Technology Errors and Omissions Insurance Works With Contracts · accessed 2026-09-16

  12. 12
    Cyber Risk for Technology Companies

    Travelers · CyberRisk Tech coverage includes… technology errors and omissions; businesses can choose cyber protection, E&O protection or both; E&O coverage helps address… errors, omissions or negligent acts in the performance of its services · accessed 2026-09-16

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