What Is At-Bay Insurance?

Understand At-Bay’s technology and cyber coverage, broker application process, security services, and questions for a California quote.

At-Bay offers cyber, technology errors and omissions (Tech E&O), and miscellaneous professional liability insurance. Its disclosed producer, At-Bay Insurance Services LLC, is a property and casualty agency and surplus lines broker; its website says coverage is underwritten by non-admitted insurers. 1,5

For a Bay Area founder or finance lead, the useful starting question is whether the exposure comes from delivering your technology, running your own systems, or providing another professional service. Map those activities separately before comparing a customer’s insurance requirements with a proposed policy. At-Bay’s product structure gives you those distinct starting points. 1

Pros and Cons

Pros

  • Technology contracts get specific attention.

    At-Bay describes Tech E&O as combining professional liability and cyber protection, including coding errors, failed implementations and customer contractual indemnity. It also describes service credits issued to settle a claim as payable damages, subject to policy terms. 2

    Bring the actual customer contract to the discussion, especially where it promises service credits or indemnification.

  • Security support extends beyond buying a policy.

    At-Bay Stance offers vulnerability monitoring, fraud defense, employee security training and access to cyber advisors. Access is tied to the policy’s Embedded Security Fee and Endorsement; optional managed detection and response (MDR) is a separate purchase from At-Bay Security, LLC. 7

    For a small team, identify who will act on alerts and use the advisory support before counting it in your security plan.

  • Growth does not automatically mean leaving the advertised market.

    At-Bay markets Tech E&O to technology businesses. Its current product page states primary and excess appetite up to $5 billion in revenue and $10 million in limits; the broker-platform route has lower published ceilings of $100 million in revenue and $3 million in limits. These are appetite ceilings, not guaranteed offers. 2

    A larger contract may call for an underwriting discussion even when the business fits the broader stated appetite.

Cons

  • California placement still needs a concrete answer.

    The reviewed product and licensing pages do not establish current California eligibility for a specific startup, product and issuing insurer. At-Bay warns that products may not be available in every state, and MPL has state restrictions; obtain California placement confirmation through the broker. 5,2,3,4

    Resolve this before relying on a quote timetable for a customer deadline.

  • Public costs are incomplete.

    Commission rates, broker compensation arrangements and a complete placement-fee schedule were not disclosed in the reviewed product, platform and US terms pages. This does not establish that commissions or fees are absent; request an itemized quote and compensation disclosure. 2,6,10

    Compare the total payable amount, with security services and placement charges broken out.

  • Older appetite material can mislead specialized startups.

    A September 2023 Tech E&O appetite PDF still accessible on At-Bay’s site has lower revenue and limit ceilings than the current product page and lists restricted classes including autonomous AI. It should not be treated as current eligibility guidance; ask underwriting for the applicable appetite version. 12,2

    An AI or hardware business should describe exactly what its product does rather than assume that a broad technology label settles eligibility.

How It Works

At-Bay describes a broker workflow of completing an application, adjusting limits and retentions, reviewing documents, selecting an effective date, and satisfying contingencies and signature requirements before binding. Brokers can also email submissions to underwriting. An online quote is not itself bound coverage. 6,4

Use the application discussion to reconcile your business description, customer contracts and requested insurance limits. For a bootstrapped company, ask whether the activity and current revenue qualify before spending time on optional services. For a growth-stage team, ask which requirements need underwriter approval and what remains outstanding before coverage can begin. The documented workflow includes both quote customization and binding contingencies. 6

At-Bay announced in August 2023 that eligible new E&S Cyber and Tech E&O business would be quoted on At-Bay Specialty Insurance Company paper. That historical announcement does not identify the insurer on a current California quote or establish the issuer for MPL. 11

Ask for the insurer’s full legal name on each proposed policy. The company arranging coverage and the company named as insurer are distinct roles; the historical carrier announcement should not substitute for the declarations and applicable forms. 5 11

Coverage and Availability

Cyber and Excess Coverage

At-Bay markets cyber coverage for direct and contingent business interruption and system failure, cyber extortion, privacy liability, and financial fraud exposures such as social engineering and invoice manipulation. Specific limits and conditions require the quote and policy. 3

At-Bay advertises excess Cyber and Tech E&O alongside primary coverage. The excess catalogue entry refers to those specialist lines; it does not establish a general commercial umbrella offering. 3,2

For a team dependent on cloud infrastructure, ask how an outage at a provider is treated and which waiting period applies. For invoice fraud, request the relevant sublimit and approval conditions. These questions test the practical reach of the advertised interruption and fraud coverage. 3

Other Professional Services

At-Bay markets miscellaneous professional liability (MPL) on a primary basis for businesses of all revenue sizes, with limits up to $5 million and state restrictions. The product page describes claims-made-and-reported coverage, a duty to defend and a tailored definition of professional services. 4

Match the definition of professional services to everything you sell, including implementation or consulting work. Ask how the reporting requirement applies to a demand received near renewal and whether prior work is included.

The current MPL product page does not name its issuing insurer. A September 2023 announcement names United Specialty Company for MPL, but that historical reference is insufficient to establish the current contracting insurer or California placement. 4,13

California Route

At-Bay lists California P&C and surplus-lines license number 0L73812 for At-Bay Insurance Services LLC. This is a company disclosure, not an independently checked California Department of Insurance record or confirmation that a particular product is available. 5

Have the broker identify the California placement route, issuing insurer and applicable forms for your operation. An agency license disclosure and a product appetite statement answer different questions. Neither is a commitment to insure a particular company. 5 10

Service and Compensation

At-Bay markets Stance MDR for endpoints and email, plus managed extended detection and response (MXDR) spanning endpoint, email, identity and cloud. It says MDR is optional for insurance and available beyond its policyholders. Coverage enhancements and premium credits have qualifying conditions. 7

Stance access uses an Embedded Security Fee and Endorsement, while MDR is separately purchased. Security costs should be distinguished from the insurance premium and any broker charges. 7

Decide which security services overlap with tools you already pay for. Ask what must be activated, what the service agreement covers, and whether your existing managed security provider qualifies for the proposed insurance enhancements. The company’s footnotes allow for comparable solutions and attach conditions to credits and enhancements. 7

At-Bay describes broker dashboard access to active policies and renewals, with rapid and manual renewal paths. Its platform page says rapid renewals bind automatically 15 days before expiry; buyers should confirm enrollment, terms and change deadlines with their broker. 6

Claims and Incident Response

At-Bay describes an in-house claims team that coordinates with a breach coach and response partners after a cyber incident. Its claims page provides incident reporting routes, and Response & Recovery is integrated with the claims process. This establishes a described support process, not claims payment or service quality. 8,9

Before an incident, save the notice instructions from your own policy and confirm who can authorize outside counsel or forensic work. Ask separately how to report a technology performance dispute or another non-cyber professional liability claim; the public cyber incident roadmap does not settle every policy’s reporting requirements. 8

What to Confirm in a Quote

  • California eligibility and issuer: Which producer and insurer appear on the documents, and is the proposed product available for your activities and location?
  • Technology contract obligations: How are service credits, indemnities, warranties and alleged failures to perform addressed in the actual forms?
  • Limits and excess structure: Are cyber and professional liability sharing an aggregate? What sits beneath any excess policy, and where does its wording differ?
  • Timing: What retroactive date, reporting period, outage waiting period and binding contingencies apply?
  • Security obligations and cost: What is the Embedded Security Fee, which services require activation, and what separate MDR contract or qualifying controls are involved?
  • Total cost and renewal: What premium, taxes, placement charges and compensation apply, and is the policy set for rapid or manual renewal?

Request the quote, declarations, forms, endorsements and service terms together. That lets your finance, legal and security owners review the same proposed obligations before binding.

Sources

At-Bay Official Website

  1. Cyber, Tech E&O & Professional Liability Insurance. At-Bay; Product cards and agency disclosure. Accessed 2026-09-16.
  2. Tech E&O Insurance Coverage and Policy Highlights. At-Bay; Tech E&O Coverage Highlights; Primary & Excess Appetite; footnotes 1–7; state disclaimer. Accessed 2026-09-16.
  3. Cyber Insurance. At-Bay; Cyber Coverage Highlights; Primary & Excess Appetite. Accessed 2026-09-16.
  4. MPL Insurance: Coverage Highlights & Appetite. At-Bay; MPL Coverage Highlights; MPL Appetite; state restrictions. Accessed 2026-09-16.
  5. Licenses. At-Bay; Producer introduction; California row; agency and surplus-lines footer. Accessed 2026-09-16.
  6. Broker Platform. At-Bay; How it works: Create a quote, Customize your quote, Bind your policy, Manage renewals; FAQs. Accessed 2026-09-16.
  7. At-Bay Stance. At-Bay; Real Protection Against Real Threats; Endpoint, Email, MXDR; footnotes 1 and 3–6. Accessed 2026-09-16.
  8. Claims Handling. At-Bay; At-Bay Cyber Incident Roadmap; The At-Bay Claims Team. Accessed 2026-09-16.
  9. Response & Recovery. At-Bay; Minimize Downtime with One Partner; integration with claims process. Accessed 2026-09-16.
  10. Terms of Service. At-Bay; US terms effective April 11, 2023: Insurance Product Terms; Payment Policy; Service. Accessed 2026-09-16.
  11. At-Bay Begins Issuing Policies on its own E&S Paper. At-Bay; August 9, 2023 release: opening paragraph and new-business transition effective August 7, 2023. Accessed 2026-09-16.
  12. At-Bay Surplus Tech E&O Appetite Guide. At-Bay; Pages 1–2; September 2023 copyright; revenue and limit statements; Restricted classes. Accessed 2026-09-16.
  13. At-Bay Doubles Miscellaneous Professional Liability Appetite. At-Bay; September 28, 2023 release: final paragraph before Media Contacts. Accessed 2026-09-16.

Updated . Spot, a product of Tools for Enlightenment, publishes this research and works in the commercial insurance market. Editorial policy. To suggest a correction, contact Spot with the page URL and supporting source.

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