---
title: "At-Bay vs biBerk"
description: "At-Bay describes specialist cyber, technology E&O and professional-liability products with policy-linked security services; biBerk sells small-business policies directly and offers cyber protection as an add-on to specified base policies. Compare product scope and service fees."
canonical: "https://spot.insure/compare/at-bay-vs-biberk"
page-type: "provider-comparison"
updated-at: "2026-09-29"
---

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# At-Bay vs biBerk

At-Bay describes specialist cyber, technology E&O and professional-liability products with policy-linked security services; biBerk sells small-business policies directly and offers cyber protection as an add-on to specified base policies. Compare product scope and service fees.

## Before You Quote

Ask each provider about eligibility, the issuing insurer, policy wording, limits, retentions, exclusions and costs for your business.

## Highlights

At-Bay focuses on cyber, technology E&O and miscellaneous professional liability, while biBerk sells a broader set of small-business products directly. biBerk’s cyber protection is a base-policy add-on; At-Bay’s current issuer and service fees depend on the quoted product. [1](https://www.at-bay.com/insurance/ "Cyber, Tech E&O & Professional Liability Insurance") [11](https://www.at-bay.com/press_releases/at-bay-begins-issuing-policies-on-its-own-paper/ "At-Bay Begins Issuing Policies on its own E&S Paper") [7](https://www.at-bay.com/stance/ "At-Bay Stance") [8](https://www.at-bay.com/claims/ "Claims Handling") [14](https://www.biberk.com/about-biberk "About biBerk | Making Small Business Insurance Simple") [18](https://www.biberk.com/small-business-insurance/cyber-insurance "Cyber Insurance & Data Breach Coverage for Business | biBerk") [17](https://www.biberk.com/support "biBerk Support | Small Business Insurance")

## Provider Reliability Assessments

These sourced assessments are shown for context; this comparison does not select a winner.

### At-Bay

Role: Hybrid role.

Broker Spot Score: **5.2/10** (partial score; 15% of this role's weighting included). Assessed 2026-09-23; review due 2026-10-23. Excluded factors: Identity and Authority (Current authority and applicable appointments or delegations have not been independently established across the assessed scope.); Carrier-Network Strength (The reviewed evidence does not name the carrier and capacity arrangements behind the assessed programs, so the relationships cannot be assessed.); Regulatory Conduct (A complete, exact-entity regulatory-conduct review for the preceding five years is unavailable.).

Carrier & MGA Spot Score: **7.1/10** (partial score; 30% of this role's weighting included). Assessed 2026-09-23; review due 2026-10-23. Excluded factors: Identity and Authority (Current authority and applicable appointments or delegations have not been independently established across the assessed scope.); Claims and Servicing (The evidence does not sufficiently establish responsibility, access and escalation across the assessed services.); Carrier-Network Strength (The reviewed evidence does not name the carrier and capacity arrangements behind the assessed programs, so the relationships cannot be assessed.); Regulatory Conduct (A complete, exact-entity regulatory-conduct review for the preceding five years is unavailable.).

Read the [full reliability assessment](https://spot.insure/insurance-providers/at-bay/reliability).

### biBerk

Role: Insurance carrier.

Carrier & MGA Spot Score: **No Spot Score**. Assessed 2026-09-29; review due 2026-10-29. Excluded factors: Identity and Authority (The supplied evidence did not support a score for Identity and Authority; this factor is excluded, not scored as zero. Canonical evidence gaps: AM Best pages were not opened (bot-protection redirect). The A++ ratings are company-reported and third-party-reported, and the exact entity list on AM Best's page is unconfirmed.; NAIC complaint index could not be checked at NAIC; the only figure found is from a third-party site.; Current licence status in each state was not looked up in state DOI records. NAIC codes were seen in biBerk's disclosure and the Oregon order only.; No 50-state regulatory-action search was done; only Oregon was found through general web search.; Which insurer issues each product and state is not stated.; biBerk is a distribution brand; whether it is itself a licensed producer entity was not established.); Financial Resilience (The supplied evidence did not support a score for Financial Resilience; this factor is excluded, not scored as zero. Canonical evidence gaps: AM Best pages were not opened (bot-protection redirect). The A++ ratings are company-reported and third-party-reported, and the exact entity list on AM Best's page is unconfirmed.; NAIC complaint index could not be checked at NAIC; the only figure found is from a third-party site.; Current licence status in each state was not looked up in state DOI records. NAIC codes were seen in biBerk's disclosure and the Oregon order only.; No 50-state regulatory-action search was done; only Oregon was found through general web search.; Which insurer issues each product and state is not stated.; biBerk is a distribution brand; whether it is itself a licensed producer entity was not established.); Claims and Servicing (The supplied evidence did not support a score for Claims and Servicing; this factor is excluded, not scored as zero. Canonical evidence gaps: AM Best pages were not opened (bot-protection redirect). The A++ ratings are company-reported and third-party-reported, and the exact entity list on AM Best's page is unconfirmed.; NAIC complaint index could not be checked at NAIC; the only figure found is from a third-party site.; Current licence status in each state was not looked up in state DOI records. NAIC codes were seen in biBerk's disclosure and the Oregon order only.; No 50-state regulatory-action search was done; only Oregon was found through general web search.; Which insurer issues each product and state is not stated.; biBerk is a distribution brand; whether it is itself a licensed producer entity was not established.); Carrier-Network Strength (The supplied evidence did not support a score for Carrier-Network Strength; this factor is excluded, not scored as zero. Canonical evidence gaps: AM Best pages were not opened (bot-protection redirect). The A++ ratings are company-reported and third-party-reported, and the exact entity list on AM Best's page is unconfirmed.; NAIC complaint index could not be checked at NAIC; the only figure found is from a third-party site.; Current licence status in each state was not looked up in state DOI records. NAIC codes were seen in biBerk's disclosure and the Oregon order only.; No 50-state regulatory-action search was done; only Oregon was found through general web search.; Which insurer issues each product and state is not stated.; biBerk is a distribution brand; whether it is itself a licensed producer entity was not established.); Regulatory Conduct (The supplied evidence did not support a score for Regulatory Conduct; this factor is excluded, not scored as zero. Canonical evidence gaps: AM Best pages were not opened (bot-protection redirect). The A++ ratings are company-reported and third-party-reported, and the exact entity list on AM Best's page is unconfirmed.; NAIC complaint index could not be checked at NAIC; the only figure found is from a third-party site.; Current licence status in each state was not looked up in state DOI records. NAIC codes were seen in biBerk's disclosure and the Oregon order only.; No 50-state regulatory-action search was done; only Oregon was found through general web search.; Which insurer issues each product and state is not stated.; biBerk is a distribution brand; whether it is itself a licensed producer entity was not established.).

Read the [full reliability assessment](https://spot.insure/insurance-providers/biberk/reliability).

## At-Bay Reviews

Review Score: 9.5 / 10 from 2 rated sources, equally weighted.

At-Bay’s public review evidence is thin: one old G2 review and a BBB complaint record. It is not enough to judge day-to-day service or claims handling.

- BBB: BBB rating A (A+ to F). At-Bay identity; US commercial insurance review/satisfaction evidence sought on BBB. Period: accessed 2026-09-25. Checked 2026-09-25. [At-Bay | BBB Business Profile](https://www.bbb.org/us/ca/mountain-view/profile/insurance-companies/at-bay-1216-1000025767)
- G2: G2 star rating 4.5 (5 stars); 1 reviews. At-Bay company/product feedback; G2 seller profile identifies its offering as cybersecurity insurance and lists San Francisco headquarters. Not an insurance-policy claims or commercial-buyer satisfaction study. Period: review dated 2020-09-21. Checked 2026-09-25. [At-Bay seller profile and reviews](https://www.g2.com/es/sellers/at-bay)

Reviewed 2026-09-25. [Read the sourced review](https://spot.insure/insurance-providers/at-bay/reviews).

## biBerk Reviews

Review Score: 9.0 / 10 from 3 rated sources, equally weighted.

Customers rate biBerk well: Trustpilot shows 4.5 out of 5 from 2,620 reviews, and NerdWallet gives it 4.0. The complaints are about slow service after you buy, billing and audits, and slow refunds.

- NerdWallet: NerdWallet editorial rating 4.0 (out of 5). NerdWallet's own editorial review of biBerk as a US small-business insurer. Not a customer average. Period: updated Feb 13, 2026. Checked 2026-09-29. [biBerk Insurance Review 2026](https://www.nerdwallet.com/business/insurance/learn/biberk-insurance)
- Trustpilot: TrustScore 4.5 (out of 5); 2620 reviews. Trustpilot's biBerk profile. All lines and states; not tied to a specific policy. Period: profile accessed 2026-09-29; 714 in last 12 months. Checked 2026-09-29. [biBerk Business Insurance Reviews](https://www.trustpilot.com/review/biberk.com)
- BBB: BBB business grade A+ (BBB letter grade). BBB Omaha, NE profile for biBerk, a Berkshire Hathaway Company. Grade, reviews and complaints are separate measures. Period: profile accessed 2026-09-29. Checked 2026-09-29. [biBerk, a Berkshire Hathaway Company - BBB profile](https://www.bbb.org/us/ne/omaha/profile/insurance-agency/biberk-a-berkshire-hathaway-company-0714-300108690); [biBerk BBB customer reviews](https://www.bbb.org/us/ne/omaha/profile/insurance-agency/biberk-a-berkshire-hathaway-company-0714-300108690/customer-reviews); [biBerk BBB complaints](https://www.bbb.org/us/ne/omaha/profile/insurance-agency/biberk-a-berkshire-hathaway-company-0714-300108690/complaints)

Reviewed 2026-09-29. [Read the sourced review](https://spot.insure/insurance-providers/biberk/reviews).

## Introduction

At-Bay publishes specialist cyber, technology E&O and miscellaneous professional-liability products. Its business role includes an agency and surplus-lines broker, while current insurer identity varies by product and is not resolved for every route. biBerk says it sells directly to small businesses and offers cyber and data-breach protection as an add-on to General Liability, Professional Liability or a BOP—not as a stand-alone cyber policy in the reviewed fact record. [1](https://www.at-bay.com/insurance/ "Cyber, Tech E&O & Professional Liability Insurance") [11](https://www.at-bay.com/press_releases/at-bay-begins-issuing-policies-on-its-own-paper/ "At-Bay Begins Issuing Policies on its own E&S Paper") [4](https://www.at-bay.com/insurance/mpl/ "MPL Insurance: Coverage Highlights & Appetite") [14](https://www.biberk.com/about-biberk "About biBerk | Making Small Business Insurance Simple") [18](https://www.biberk.com/small-business-insurance/cyber-insurance "Cyber Insurance & Data Breach Coverage for Business | biBerk")



## Coverage Comparison

| Coverage Type | At-Bay | biBerk |
| --- | --- | --- |
| [Business owner’s policy](https://spot.insure/coverage/business-owners-policy) | Not listed | Listed [19](https://www.biberk.com/small-business-insurance/business-owners-policy "Get A biBerk Business Owners Policy | Fast Online Quote") |
| [Commercial auto](https://spot.insure/coverage/commercial-auto) | Not listed | Listed [21](https://www.biberk.com/small-business-insurance/commercial-auto-insurance "Commercial Auto Insurance From biBerk | Get Coverage Online") |
| [Cyber liability](https://spot.insure/coverage/cyber) | Listed: At-Bay offers primary and excess cyber insurance for businesses with revenue up to $5 billion. [3](https://www.at-bay.com/insurance/cyber/ "Cyber Insurance") | Listed [18](https://www.biberk.com/small-business-insurance/cyber-insurance "Cyber Insurance & Data Breach Coverage for Business | biBerk") |
| [General liability](https://spot.insure/coverage/general-liability) | Not listed | Listed [24](https://www.biberk.com/small-business-insurance/general-liability-insurance "General Liability Insurance From biBerk | Get A Quote Today") |
| [Professional errors and omissions (E&O)](https://spot.insure/coverage/professional-errors-omissions) | Listed: At-Bay offers primary miscellaneous professional liability insurance. [4](https://www.at-bay.com/insurance/mpl/ "MPL Insurance: Coverage Highlights & Appetite") | Listed [26](https://www.biberk.com/small-business-insurance/professional-liability-insurance "Professional Liability Insurance | Talk To biBerk") |
| [Technology errors and omissions (E&O)](https://spot.insure/coverage/technology-errors-omissions) | Listed: At-Bay offers primary and excess technology errors and omissions insurance for businesses with revenue up to $5 billion. [2](https://www.at-bay.com/insurance/tech-eo/ "Tech E&O Insurance Coverage and Policy Highlights") | Not listed |
| [Umbrella and excess liability](https://spot.insure/coverage/umbrella-excess) | Not listed | Listed [20](https://www.biberk.com/small-business-insurance/umbrella-insurance "Umbrella Insurance From biBerk | Get Coverage Today") |
| [Workers’ compensation](https://spot.insure/coverage/workers-compensation) | Not listed | Listed [25](https://www.biberk.com/small-business-insurance/workers-compensation-insurance "Workers’ Compensation Insurance From biBerk | Get A Quote") |

A listing may be arranged through an insurer or partner. “Not listed” means this catalogue has no separate offering recorded; ask the provider whether it can quote the coverage and request the policy terms.



## Optional Spot Service Handoff

Spot can help prepare applications, coordinate brokers, and compare proposals. If that work is needed, collect the company's task, known deadline, current broker, and open questions for a [free consultation](https://spot.insure/pricing.md). The company decides what to buy; Spot does not automatically bind coverage.

## Key Differences Between At-Bay and biBerk

At-Bay describes security services connected to eligible policies, with managed detection and response available as a separate purchase; its claims materials describe breach response support. biBerk lists policy servicing and claims routes online, but its support page does not establish response time or claim outcomes. If cybersecurity services matter, separate policy coverage from any paid monitoring service and ask whether the service requires a specific policy or endorsement. [7](https://www.at-bay.com/stance/ "At-Bay Stance") [7](https://www.at-bay.com/stance/ "At-Bay Stance") [8](https://www.at-bay.com/claims/ "Claims Handling") [17](https://www.biberk.com/support "biBerk Support | Small Business Insurance")

## What to Confirm in Quotes

Ask At-Bay which insurer issues the exact quote, which Stance services are included, and whether an Embedded Security Fee or separate MDR purchase applies. Ask biBerk which base policy is required for its cyber add-on and who handles claim intake. Compare covered events, exclusions, limits, service fees and policy terms; a shared “cyber” label does not establish equivalent protection. [11](https://www.at-bay.com/press_releases/at-bay-begins-issuing-policies-on-its-own-paper/ "At-Bay Begins Issuing Policies on its own E&S Paper") [7](https://www.at-bay.com/stance/ "At-Bay Stance") [7](https://www.at-bay.com/stance/ "At-Bay Stance") [18](https://www.biberk.com/small-business-insurance/cyber-insurance "Cyber Insurance & Data Breach Coverage for Business | biBerk") [17](https://www.biberk.com/support "biBerk Support | Small Business Insurance")

## Compare Services

What each provider documents about the services you may need.

| Criteria | At-Bay | biBerk |
| --- | --- | --- |
| Business role | At-Bay offers cyber, technology E&O and miscellaneous professional liability, with coverage described as underwritten by non-admitted insurers. At-Bay Insurance Services LLC is its disclosed property-and-casualty agency and surplus-lines broker. [1](https://www.at-bay.com/insurance/ "Cyber, Tech E&O & Professional Liability Insurance") [5](https://www.at-bay.com/licenses/ "Licenses") (Evidence: Company-reported; scope: US brand and disclosed producer; company statements, not regulatory verification.; verified: 2026-09-16.) | biBerk says it sells small-business insurance directly without an insurance broker. This is its company-reported channel description. Its California/Massachusetts notice names four insurers collectively as issuing most policies and lists each insurer’s licensed jurisdictions, but does not identify the insurer for a particular transaction, product, or policy or guarantee product availability in a jurisdiction. [14](https://www.biberk.com/about-biberk "About biBerk | Making Small Business Insurance Simple") [15](https://www.biberk.com/disclosures "Small Business Insurance From biBerk | Read Disclosures") (Evidence: Company-reported; scope: Company-reported description of biBerk’s U.S. small-business sales channel on its About page; not a claim about every transaction, product route, producer role, or policy issuer.; verified: 2026-09-28.) |
| Customer focus | Large technology companies may fit At-Bay’s published Tech E&O appetite, but the quote route matters: its product page lists up to $5 billion revenue and $10 million limits, while its broker platform lists $100 million and $3 million. These are ceilings, not guaranteed offers. [2](https://www.at-bay.com/insurance/tech-eo/ "Tech E&O Insurance Coverage and Policy Highlights") (Evidence: Company-reported; scope: Current product-page appetite; no inference of pre-revenue, industry-specific or California eligibility.; verified: 2026-09-16.)<br><br>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](https://www.at-bay.com/wp-content/uploads/2021/05/At-Bay-Tech-EO-Appetite-Guide-2022.pdf "At-Bay Surplus Tech E&O Appetite Guide") [2](https://www.at-bay.com/insurance/tech-eo/ "Tech E&O Insurance Coverage and Policy Highlights") (Evidence: Company-reported; scope: Legacy document has inconsistent autoquote revenue figures internally. Current HTML controls description of advertised ceilings, but current class eligibility remains unresolved.; verified: 2026-09-16.) | biBerk targets small businesses across varied industries and lists examples such as accounting, food service, retail, and transportation. The homepage FAQ says availability depends on the state and type of insurance; the industry list is illustrative, not an eligibility guarantee. [16](https://www.biberk.com/ "Small Business Insurance From biBerk | Get A Quote Online") [14](https://www.biberk.com/about-biberk "About biBerk | Making Small Business Insurance Simple") (Evidence: Company-reported; scope: U.S. small-business audience and examples on biBerk’s national site; examples are illustrative. The homepage says availability depends on the state and type of insurance; listed categories do not establish individual eligibility.; verified: 2026-09-28.) |
| Coverage lines | Technology companies can compare one Tech E&O product for professional and cyber exposures, including coding errors, failed implementations and customer contractual indemnity; service-credit damages remain subject to policy terms. [2](https://www.at-bay.com/insurance/tech-eo/ "Tech E&O Insurance Coverage and Policy Highlights") (Evidence: Company-reported; scope: Product highlights, not an issued policy or universal contract coverage.; verified: 2026-09-16.)<br><br>At-Bay’s cyber policy may address business interruption, system failure, extortion, privacy liability and financial fraud such as social engineering or invoice manipulation; your quote and policy set the actual limits and conditions. [3](https://www.at-bay.com/insurance/cyber/ "Cyber Insurance") (Evidence: Company-reported; scope: Current cyber product offering; components are not separate catalogue products.; verified: 2026-09-16.)<br><br>Businesses needing miscellaneous professional liability can ask At-Bay about primary coverage with limits up to $5 million and a tailored definition of professional services; state restrictions apply, and the product is claims-made-and-reported with a duty to defend. [4](https://www.at-bay.com/insurance/mpl/ "MPL Insurance: Coverage Highlights & Appetite") (Evidence: Company-reported; scope: Current MPL page; eligibility and policy wording remain underwriting-specific.; verified: 2026-09-16.)<br><br>If you need limits above primary Cyber or Tech E&O, At-Bay lists excess options for those lines; this does not establish a general commercial umbrella policy. [3](https://www.at-bay.com/insurance/cyber/ "Cyber Insurance") [2](https://www.at-bay.com/insurance/tech-eo/ "Tech E&O Insurance Coverage and Policy Highlights") (Evidence: Company-reported; scope: Shared umbrella-excess key used only for explicitly marketed excess products.; verified: 2026-09-16.) | biBerk offers cyber and data-breach protection as an add-on to General Liability, Professional Liability, or a Business Owners Policy (BOP); the page does not present this as a stand-alone product. The types of response expenses and affected-person services depend on the selected base policy and terms. [18](https://www.biberk.com/small-business-insurance/cyber-insurance "Cyber Insurance & Data Breach Coverage for Business | biBerk") (Evidence: Company-reported; scope: Entity: biBerk brand. Product: small-business cyber add-on. Jurisdiction and availability depend on state and underwriting. Company-reported page description; the issued policy and endorsement control coverage.; verified: 2026-09-29.)<br><br>biBerk describes its small-business BOP as combining General Liability and commercial property in one policy. Its page gives examples of third-party injury/property-damage liability and protection for buildings or leased space, contents, inventory, tools, and business income after covered property damage; the issued policy controls. [19](https://www.biberk.com/small-business-insurance/business-owners-policy "Get A biBerk Business Owners Policy | Fast Online Quote") (Evidence: Company-reported; scope: Entity: biBerk brand. Product: small-business Business Owners Policy. State availability and exact terms depend on underwriting and the issued policy. Company-reported coverage description, not a policy-form determination.; verified: 2026-09-29.)<br><br>biBerk says its umbrella coverage applies only when the claim concerns coverage included in an appropriate underlying liability policy and that policy’s limits have been reached. An umbrella does not add a line such as commercial auto when the required underlying auto coverage is absent; the issued terms control. [20](https://www.biberk.com/small-business-insurance/umbrella-insurance "Umbrella Insurance From biBerk | Get Coverage Today") (Evidence: Company-reported; scope: Entity: biBerk brand. Product: small-business umbrella/commercial excess. In New York, biBerk calls it commercial excess. Underlying coverage and exhaustion conditions are company-described; confirm the scheduled underlying policies and issued terms.; verified: 2026-09-29.)<br><br>biBerk’s commercial-auto page lists bodily-injury and property-damage liability, medical-payments/no-fault, uninsured-motorist, comprehensive, and collision coverage examples for business vehicles. Which options apply depends on the policy selected and issued. [21](https://www.biberk.com/small-business-insurance/commercial-auto-insurance "Commercial Auto Insurance From biBerk | Get Coverage Online") (Evidence: Company-reported; scope: Entity: biBerk brand. Product: small-business commercial auto. Vehicle eligibility and availability depend on underwriting and state; page examples do not establish coverage under an individual policy.; verified: 2026-09-29.)<br><br>biBerk markets General Liability insurance for small businesses and says it is offered in many states. The page does not establish availability or eligibility for a particular business or state. [24](https://www.biberk.com/small-business-insurance/general-liability-insurance "General Liability Insurance From biBerk | Get A Quote Today") (Evidence: Company-reported; scope: Entity: biBerk brand. Product: marketed small-business General Liability line. This is a catalogue-membership claim only, not a reviewed detailed-offering conclusion or coverage determination.; verified: 2026-09-29.)<br><br>biBerk markets Professional Liability insurance, also called Errors and Omissions (E&O), for businesses seeking protection over alleged errors or omissions in professional services. This is a catalogue-membership statement, not a determination of terms or eligibility. [26](https://www.biberk.com/small-business-insurance/professional-liability-insurance "Professional Liability Insurance | Talk To biBerk") (Evidence: Company-reported; scope: Entity: biBerk brand. Product: marketed small-business Professional Liability/E&O line. This is a catalogue-membership claim only; the page reviewed does not establish individual eligibility or policy terms.; verified: 2026-09-29.)<br><br>biBerk markets Workers’ Compensation insurance for small businesses and describes quotes and policy purchases online or with an insurance expert. State rules and underwriting determine whether it can quote a particular employer. [25](https://www.biberk.com/small-business-insurance/workers-compensation-insurance "Workers’ Compensation Insurance From biBerk | Get A Quote") (Evidence: Company-reported; scope: Entity: biBerk brand. Product: marketed small-business Workers’ Compensation line. This is a catalogue-membership claim only, not a reviewed detailed-offering conclusion or coverage determination.; verified: 2026-09-29.) |
| Access to insurers | Do not assume a past carrier announcement identifies today’s insurer: At-Bay’s 2023 announcement said eligible new E&S Cyber and Tech E&O would use At-Bay Specialty Insurance Company, but it does not settle a current California quote or MPL issuer. [11](https://www.at-bay.com/press_releases/at-bay-begins-issuing-policies-on-its-own-paper/ "At-Bay Begins Issuing Policies on its own E&S Paper") (Evidence: Company-reported; scope: Historical announcement effective August 7, 2023; no buyer-specific policy reviewed.; verified: 2026-09-16.)<br><br>Ask who will issue your MPL policy: the current product page names no insurer, and a 2023 announcement naming United Specialty Company does not establish the present carrier or California availability. [4](https://www.at-bay.com/insurance/mpl/ "MPL Insurance: Coverage Highlights & Appetite") [13](https://www.at-bay.com/press_releases/at-bay-doubles-mpl/ "At-Bay Doubles Miscellaneous Professional Liability Appetite") (Evidence: Not found in reviewed sources; scope: Current issuer not established; preserve source spelling without converting historical brand wording into a verified legal-entity record.; verified: 2026-09-16.) | biBerk says the four insurers it names—Wellfleet Insurance Company, Berkshire Hathaway Direct Insurance Company, National Liability & Fire Insurance Company, and Wellfleet New York Insurance Company—collectively issue most policies sold by biBerk. Its California/Massachusetts notice separately lists each insurer’s domicile and licensed jurisdictions, but does not identify which insurer issues a particular product or policy or guarantee that a particular product is available in any jurisdiction. Check the insurer named in the issued policy. [15](https://www.biberk.com/disclosures "Small Business Insurance From biBerk | Read Disclosures") (Evidence: Company-reported; scope: Company disclosure provided to California and Massachusetts applicants and insureds; it describes the four named insurers collectively as issuing most policies sold by biBerk and separately lists each insurer’s domicile and licensed jurisdictions. It does not identify which insurer issues a particular product or policy or guarantee that a particular product is available in any jurisdiction.; verified: 2026-09-28.) |
| Application process | An online quote is not bound coverage; At-Bay’s broker process still requires application review, chosen limits and retentions, documents, effective date, contingencies and signatures before binding. [6](https://www.at-bay.com/brokers/platform/ "Broker Platform") [4](https://www.at-bay.com/insurance/mpl/ "MPL Insurance: Coverage Highlights & Appetite") (Evidence: Company-reported; scope: Public broker workflow; no application submitted and no speed guarantee inferred.; verified: 2026-09-16.) | biBerk describes an online path in which a business answers questions, chooses coverage, and pays online; it also says applicants can speak with an insurance expert. Its homepage says availability depends on the state and type of insurance; the description does not establish that every applicant can complete or bind online. [16](https://www.biberk.com/ "Small Business Insurance From biBerk | Get A Quote Online") [14](https://www.biberk.com/about-biberk "About biBerk | Making Small Business Insurance Simple") (Evidence: Company-reported; scope: Company-described online quote and purchase route and expert assistance for U.S. small-business applicants. The homepage states that availability depends on state and type of insurance; this is not a claim that every applicant can complete an online purchase or bind coverage.; verified: 2026-09-28.) |
| Claims assistance | After a cyber incident, At-Bay describes an in-house claims team, breach coach, response partners and incident-reporting routes; this documents its stated process, not claim payment or service quality. [8](https://www.at-bay.com/claims/ "Claims Handling") [9](https://www.at-bay.com/security/response-recovery/ "Response & Recovery") (Evidence: Company-reported; scope: Cyber incident process; confirm policy-specific notice obligations and consent requirements, including non-cyber E&O claims.; verified: 2026-09-16.) | NerdWallet’s February 2026 biBerk review reports that, during 2022–2024, state regulators received far more complaints from biBerk commercial liability and commercial property policyholders than NerdWallet expected given biBerk’s market share; NerdWallet says biBerk received its lowest possible score for this complaint factor. This is NerdWallet’s report of company-level complaint data, not a raw count or evidence about every biBerk product, a particular policy, or the quality of claim decisions. [27](https://www.nerdwallet.com/business/insurance/learn/biberk-insurance "biBerk Insurance Review 2026: Berkshire Hathaway’s Basic Online Storefront") (Evidence: Verified; scope: NerdWallet U.S. small-business-insurance review, updated February 13, 2026 and accessed September 29, 2026. The review attributes the comparison to NAIC company-level data but does not identify the insurer mix for a specific biBerk policy. It reports commercial liability and commercial property complaint experience for 2022–2024 relative to market share; complaint contents and underlying counts are not stated in the reviewed passage.; verified: 2026-09-29.) |

## Related Reading

- [What Is At-Bay Insurance?](https://spot.insure/insurance-providers/at-bay)
- [What Is biBerk Insurance?](https://spot.insure/insurance-providers/biberk)

## Related Comparisons

- [AIG vs At-Bay](https://spot.insure/compare/aig-vs-at-bay)
- [AIG vs biBerk](https://spot.insure/compare/aig-vs-biberk)
- [Alliance Risk vs At-Bay](https://spot.insure/compare/alliance-risk-vs-at-bay)
- [Alliance Risk vs biBerk](https://spot.insure/compare/alliance-risk-vs-biberk)
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- [Amelia Risk vs biBerk](https://spot.insure/compare/amelia-risk-vs-biberk)
- [Aon vs At-Bay](https://spot.insure/compare/aon-vs-at-bay)
- [Aon vs biBerk](https://spot.insure/compare/aon-vs-biberk)
- [Armilla vs At-Bay](https://spot.insure/compare/armilla-vs-at-bay)
- [Armilla vs biBerk](https://spot.insure/compare/armilla-vs-biberk)
- [At-Bay vs The Baldwin Group](https://spot.insure/compare/at-bay-vs-baldwin)
- [At-Bay vs Beazley](https://spot.insure/compare/at-bay-vs-beazley)
- [At-Bay vs Berkshire Hathaway Specialty Insurance](https://spot.insure/compare/at-bay-vs-berkshire-hathaway-specialty-insurance)
- [At-Bay vs CFC](https://spot.insure/compare/at-bay-vs-cfc)
- [At-Bay vs Chubb](https://spot.insure/compare/at-bay-vs-chubb)
- [At-Bay vs CNA](https://spot.insure/compare/at-bay-vs-cna)
- [At-Bay vs Coalition](https://spot.insure/compare/at-bay-vs-coalition)
- [At-Bay vs Corgi](https://spot.insure/compare/at-bay-vs-corgi)
- [At-Bay vs Coterie Insurance](https://spot.insure/compare/at-bay-vs-coterie)
- [At-Bay vs Counterpart](https://spot.insure/compare/at-bay-vs-counterpart)
- [At-Bay vs Coverdash](https://spot.insure/compare/at-bay-vs-coverdash)
- [At-Bay vs Cowbell](https://spot.insure/compare/at-bay-vs-cowbell)
- [At-Bay vs Embroker](https://spot.insure/compare/at-bay-vs-embroker)
- [At-Bay vs Founder Shield](https://spot.insure/compare/at-bay-vs-foundershield)
- [The Baldwin Group vs biBerk](https://spot.insure/compare/baldwin-vs-biberk)
- [Beazley vs biBerk](https://spot.insure/compare/beazley-vs-biberk)
- [Berkshire Hathaway Specialty Insurance vs biBerk](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-biberk)
- [biBerk vs CFC](https://spot.insure/compare/biberk-vs-cfc)
- [biBerk vs Chubb](https://spot.insure/compare/biberk-vs-chubb)
- [biBerk vs CNA](https://spot.insure/compare/biberk-vs-cna)
- [biBerk vs Coalition](https://spot.insure/compare/biberk-vs-coalition)
- [biBerk vs Corgi](https://spot.insure/compare/biberk-vs-corgi)
- [biBerk vs Coterie Insurance](https://spot.insure/compare/biberk-vs-coterie)
- [biBerk vs Counterpart](https://spot.insure/compare/biberk-vs-counterpart)
- [biBerk vs Coverdash](https://spot.insure/compare/biberk-vs-coverdash)
- [biBerk vs Cowbell](https://spot.insure/compare/biberk-vs-cowbell)
- [biBerk vs Embroker](https://spot.insure/compare/biberk-vs-embroker)
- [biBerk vs Founder Shield](https://spot.insure/compare/biberk-vs-foundershield)

## Sources

### [At-Bay Official Website](https://www.at-bay.com/)

1. [Cyber, Tech E&O & Professional Liability Insurance](https://www.at-bay.com/insurance/). At-Bay; Product cards and agency disclosure. Accessed 2026-09-16.
2. [Tech E&O Insurance Coverage and Policy Highlights](https://www.at-bay.com/insurance/tech-eo/). At-Bay; Tech E&O Coverage Highlights; Primary & Excess Appetite; footnotes 1–7; state disclaimer. Accessed 2026-09-16.
3. [Cyber Insurance](https://www.at-bay.com/insurance/cyber/). At-Bay; Cyber Coverage Highlights; Primary & Excess Appetite. Accessed 2026-09-16.
4. [MPL Insurance: Coverage Highlights & Appetite](https://www.at-bay.com/insurance/mpl/). At-Bay; MPL Coverage Highlights; MPL Appetite; state restrictions. Accessed 2026-09-16.
5. [Licenses](https://www.at-bay.com/licenses/). At-Bay; Producer introduction; California row; agency and surplus-lines footer. Accessed 2026-09-16.
6. [Broker Platform](https://www.at-bay.com/brokers/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](https://www.at-bay.com/stance/). At-Bay; Real Protection Against Real Threats; Endpoint, Email, MXDR; footnotes 1 and 3–6. Accessed 2026-09-16.
8. [Claims Handling](https://www.at-bay.com/claims/). At-Bay; At-Bay Cyber Incident Roadmap; The At-Bay Claims Team. Accessed 2026-09-16.
9. [Response & Recovery](https://www.at-bay.com/security/response-recovery/). At-Bay; Minimize Downtime with One Partner; integration with claims process. Accessed 2026-09-16.
10. [Terms of Service](https://www.at-bay.com/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](https://www.at-bay.com/press_releases/at-bay-begins-issuing-policies-on-its-own-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](https://www.at-bay.com/wp-content/uploads/2021/05/At-Bay-Tech-EO-Appetite-Guide-2022.pdf). 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](https://www.at-bay.com/press_releases/at-bay-doubles-mpl/). At-Bay; September 28, 2023 release: final paragraph before Media Contacts. Accessed 2026-09-16.

### [biBerk Official Website](https://www.biberk.com/)

14. [About biBerk | Making Small Business Insurance Simple](https://www.biberk.com/about-biberk). biBerk; Making small business insurance simple and direct sales without an insurance broker, lines 72–89; online assistance, lines 76–78. Accessed 2026-09-28.
15. [Small Business Insurance From biBerk | Read Disclosures](https://www.biberk.com/disclosures). biBerk; California/Massachusetts applicants and insureds notice: collective insurer statement and no-guarantee qualification, lines 73–75; each insurer’s NAIC code, domicile, and licensed jurisdictions, lines 76–88. Accessed 2026-09-28.
16. [Small Business Insurance From biBerk | Get A Quote Online](https://www.biberk.com/). biBerk; Online purchase steps, lines 183–197; small-business audience and industries, lines 231–238; state/type availability, lines 290–295. Accessed 2026-09-28.
17. [biBerk Support | Small Business Insurance](https://www.biberk.com/support). biBerk; Common Support Requests, My Policy and Start a Claim routes, lines 47–75. Accessed 2026-09-28.
18. [Cyber Insurance & Data Breach Coverage for Business | biBerk](https://www.biberk.com/small-business-insurance/cyber-insurance). biBerk; “What is data breach insurance and Cyber insurance add-on coverage?” (lines 76–78); “Cyber Insurance Add-on Coverage” (lines 103–107); attach options reiterated at lines 160–162. Accessed 2026-09-29.
19. [Get A biBerk Business Owners Policy | Fast Online Quote](https://www.biberk.com/small-business-insurance/business-owners-policy). biBerk; “What is a Business Owners Policy?” (lines 77–80); liability and property examples (lines 104–146); endorsements (lines 182–205). Accessed 2026-09-29.
20. [Umbrella Insurance From biBerk | Get Coverage Today](https://www.biberk.com/small-business-insurance/umbrella-insurance). biBerk; “How does Umbrella insurance work?” (lines 87–96): appropriate underlying liability policy and its limits must be reached; example at lines 97–99. Accessed 2026-09-29.
21. [Commercial Auto Insurance From biBerk | Get Coverage Online](https://www.biberk.com/small-business-insurance/commercial-auto-insurance). biBerk; “What does Commercial Auto insurance cover?”: bodily injury, property damage, medical payments/no-fault, uninsured motorist, comprehensive and collision examples (lines 116–148). Accessed 2026-09-29.
22. [Small Business Insurance From biBerk | Read Disclosures](https://www.biberk.com/disclosures). biBerk; Notice to California and Massachusetts Applicants and Insureds: four insurers collectively issue most policies, no-guarantee limitation, company codes, domicile and licensed jurisdictions, lines 73–88. Accessed 2026-09-29.
23. [About biBerk | Making Small Business Insurance Simple](https://www.biberk.com/about-biberk). biBerk; Official page title and body identify the biBerk brand and link to biBerk.com; accessed for brand capitalization and site identity only. Accessed 2026-09-29.
24. [General Liability Insurance From biBerk | Get A Quote Today](https://www.biberk.com/small-business-insurance/general-liability-insurance). biBerk; Small-business General Liability product and online/phone quote route (lines 73–79); state availability FAQ (lines 231–233). Accessed 2026-09-29.
25. [Workers’ Compensation Insurance From biBerk | Get A Quote](https://www.biberk.com/small-business-insurance/workers-compensation-insurance). biBerk; Workers’ Compensation product, quote and purchase routes (lines 73–81, 93–100); work-injury coverage description (lines 102–104). Accessed 2026-09-29.
26. [Professional Liability Insurance | Talk To biBerk](https://www.biberk.com/small-business-insurance/professional-liability-insurance). biBerk; Professional Liability/E&O product and online/phone quote and purchase route (lines 73–88). Accessed 2026-09-29.
27. [biBerk Insurance Review 2026: Berkshire Hathaway’s Basic Online Storefront](https://www.nerdwallet.com/business/insurance/learn/biberk-insurance). NerdWallet; “BiBerk pros and cons” (lines 337–343) and “Lots of complaints filed with state regulators” (lines 355–360); rating-factor methodology, including the 2022–2024 commercial general liability/property complaint finding and lowest possible complaint-factor score (lines 376–383); review updated February 13, 2026. Accessed 2026-09-29.

Updated 2026-09-29. 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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