At-Bay vs Markel Insurance
At-Bay’s Tech E&O page lists ceilings up to $5 billion in revenue and $10 million in limits, while its Broker Platform lists up to $100 million and $3 million. The reviewed sources do not resolve which applies to a particular submission. Markel’s filing describes distribution for its U.S. Wholesale and Specialty division; confirm applicable appetite and the named insurer. 2,6,14
Introduction
Coverage Comparison
| Coverage | At-Bay | Markel Insurance |
|---|---|---|
| Builders risk | Not listed | Listed 34Markel builders risk |
| Cargo and transit | Not listed | Listed 33Markel cargo and transit coverage |
| Commercial property | Not listed | Listed 32Markel commercial property |
| Crime | Not listed | Listed 29Markel Cyber 360 eCrime component (standalone product not established) |
| Cyber liability | Listed 3At-Bay offers primary and excess cyber insurance for businesses with revenue up to $5 billion. | Listed 29Markel Cyber 360 |
| Directors and officers | Not listed | Listed 31Markel private and nonprofit D&O |
| Employment practices liability | Not listed | Listed 31Markel employment practices liability |
| Equipment breakdown | Not listed | Listed 27Equipment-breakdown option within property coverage; standalone product not established |
| Fiduciary liability | Not listed | Listed 31Markel fiduciary liability |
| General liability | Not listed | Listed 27Markel small-business casualty and property |
| Hired and non-owned auto | Not listed | Listed 27Hired/non-owned auto option in small-business casualty; not commercial auto |
| Liquor liability | Not listed | Listed 27Markel liquor liability |
| Management liability | Not listed | Listed 31Markel management liability |
| Media liability | Not listed | Listed 29Markel Cyber 360 media liability component (standalone product not established) |
| Product liability | Not listed | Listed 27Markel products liability |
| Professional errors and omissions (E&O) | Listed 4At-Bay offers primary miscellaneous professional liability insurance. | Listed 30Markel ProBiz miscellaneous E&O |
| Surety bonds | Not listed | Listed 36Markel Surety bonds |
| Technology errors and omissions (E&O) | Listed 2At-Bay offers primary and excess technology errors and omissions insurance for businesses with revenue up to $5 billion. | Listed 29Markel Cyber 360 technology professional liability component (standalone product not established) |
| Tools, equipment and inland marine | Not listed | Listed 33Markel commercial inland marine |
| Umbrella and excess liability | Not listed | Listed 35Markel excess casualty and umbrella |
| Workers’ compensation | Not listed | Listed 28Markel Workers Compensation |
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.
Current Spot Scores
Each score uses the rubric for that provider’s documented role. Providers with more than one role may have a score for each.
At-Bay
Hybrid providerBroker
5.2/ 10Assessed provider: At-Bay. Scope: At-Bay Insurance Services LLC as producer/broker and At-Bay Specialty Insurance Company as a Delaware-based E&S carrier, with issuer evidence limited to Cyber and Tech E&O policies announced as issuing on its own paper beginning August 7, 2023.
Carrier & MGA
7.1/ 10Assessed provider: At-Bay. Scope: At-Bay Insurance Services LLC as producer/broker and At-Bay Specialty Insurance Company as a Delaware-based E&S carrier, with issuer evidence limited to Cyber and Tech E&O policies announced as issuing on its own paper beginning August 7, 2023.
Markel Insurance
CarrierCarrier & MGA
No Spot Score
Assessed provider: Markel Insurance. Scope: U.S. commercial insurance business and named insurer/service entities within Markel Insurance. Group ratings and company-published service-entity disclosures apply only to the named entities; product/state-specific insurer and claims roles remain quote/policy-specific.
Review Scores
These averages can combine ratings for different products, locations, and customer groups, including approximate BBB grade conversions. Read each review for the sources, scope, and calculation.
At-Bay
Review Score
9.5/ 102 rated sources
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.[3][6][9]
Read At-Bay reviewsMarkel Insurance
Review Score
Not enough ratings
Markel’s five Trustpilot reviews offer a limited picture of customer experience. BBB complaints span multiple company locations, and its 2022 J.D. Power score reflects agents’ views, so these sources do not establish current policyholder service.[4][3][6][1]
Read Markel Insurance reviewsKey Differences Between At-Bay and Markel Insurance
Business Roles and Insurer Access
At-Bay offers cyber, technology E&O and miscellaneous professional liability products underwritten by non-admitted insurers. At-Bay Insurance Services LLC is its disclosed property and casualty agency and surplus-lines broker. Markel Insurance describes its U.S. insurance operations within Markel Group Inc.; the FY2025 filing identifies multiple underwriting subsidiaries, so the insurer for a policy depends on its product and state. 1 14
Customer Focus and Application Route
At-Bay’s Tech E&O page lists ceilings of up to $5 billion in revenue and $10 million in limits, while its Broker Platform lists up to $100 million in revenue and $3 million in limits. The published ceilings differ, and the reviewed sources do not resolve which applies to a particular submission. Ask underwriting for the applicable appetite and limit. Markel’s U.S. small-business page lists child care and enrichment, commercial and residential services, sports and fitness, and manufacturing as example segments; it is not a complete eligibility schedule. 2 6 21
At-Bay’s broker workflow requires application review, selected limits and retentions, documents, an effective date, contingencies and signatures before binding. Markel’s FY2025 filing describes wholesale and retail distribution for its U.S. Wholesale and Specialty division and says certain admitted products and programs are marketed directly to consumers. Its workers’ compensation page also invites an online application or an appointed-agent quote request; it does not establish online purchase or binding. 6 14 22
What to Confirm in Quotes
For the specific line and state, confirm the proposed underwriting company, placement channel, application steps and who will service the policy after issue. Compare actual policy wording, limits, retentions, exclusions, effective dates and total cost; the public descriptions do not establish equivalent coverage or eligibility. 1 14
Compare Services
What each provider documents about the services you may need
| Criteria | At-Bay | Markel Insurance |
|---|---|---|
| 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. 1,5Company-reported. US brand and disclosed producer; company statements, not regulatory verification. | Markel describes Markel Insurance as the insurance operations within Markel Group Inc., a Virginia holding company. Markel Group's FY2025 filing identifies multiple underwriting subsidiaries. The insurer for a specific policy depends on the product, state and current quote or policy disclosures; Markel Insurance is not one standalone legal insurer. 14,15Company-reported. U.S. commercial-insurance identity and parent/business relationship; not a product-specific issuer assignment. |
| 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. 2Company-reported. Current product-page appetite; no inference of pre-revenue, industry-specific or California eligibility. 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. 12,2Company-reported. Legacy document has inconsistent autoquote revenue figures internally. Current HTML controls description of advertised ceilings, but current class eligibility remains unresolved. | Markel's U.S. small-business page lists child care and enrichment, commercial and residential services, sports and fitness, and manufacturing among the segments it describes. Separately, its FY2025 filing describes Markel Insurance's global specialty business as underwriting hard-to-place risks; that wording is not specific to U.S. Wholesale and Specialty. 21,14Company-reported. Company-stated U.S. small-business examples and separate global business characterization; neither establishes eligibility. |
| 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. 6,4Company-reported. Public broker workflow; no application submitted and no speed guarantee inferred. | Markel's FY2025 filing says U.S. Wholesale and Specialty distributes through wholesale and retail channels on admitted and excess-and-surplus bases, including limited small-account binding authority. In 2025, 71% of this division's gross written premium was placed through wholesale brokers, 26% through retail agents and brokers, and the remainder through alternative channels. Certain admitted products and programs are marketed directly to consumers, but that does not establish online purchase or binding for every product. 14Company-reported. FY2025 Markel Insurance U.S. Wholesale and Specialty distribution; not the whole Markel Insurance business. For workers' compensation, Markel directs applicants to submit an online application or contact an appointed agent to request a quote; the reviewed page does not establish that purchase and binding are completed online. 22Company-reported. Markel U.S. workers' compensation page only; route to request a quote. Agencies can request a Markel appointment; Markel says appointments are made by affiliated insurer and product, and producers must hold the required state license. This is a producer onboarding route, not an insured's application path. 25Company-reported. Commercial agency appointment information; not retail purchase process. |
Sources
At-Bay Official Website
- Cyber, Tech E&O & Professional Liability Insurance. At-Bay; Product cards and agency disclosure. Accessed 2026-09-16.
- 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.
- Cyber Insurance. At-Bay; Cyber Coverage Highlights; Primary & Excess Appetite. Accessed 2026-09-16.
- MPL Insurance: Coverage Highlights & Appetite. At-Bay; MPL Coverage Highlights; MPL Appetite; state restrictions. Accessed 2026-09-16.
- Licenses. At-Bay; Producer introduction; California row; agency and surplus-lines footer. Accessed 2026-09-16.
- Broker Platform. At-Bay; How it works: Create a quote, Customize your quote, Bind your policy, Manage renewals; FAQs. Accessed 2026-09-16.
- At-Bay Stance. At-Bay; Real Protection Against Real Threats; Endpoint, Email, MXDR; footnotes 1 and 3–6. Accessed 2026-09-16.
- Claims Handling. At-Bay; At-Bay Cyber Incident Roadmap; The At-Bay Claims Team. Accessed 2026-09-16.
- Response & Recovery. At-Bay; Minimize Downtime with One Partner; integration with claims process. Accessed 2026-09-16.
- Terms of Service. At-Bay; US terms effective April 11, 2023: Insurance Product Terms; Payment Policy; Service. Accessed 2026-09-16.
- 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.
- 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.
- At-Bay Doubles Miscellaneous Professional Liability Appetite. At-Bay; September 28, 2023 release: final paragraph before Media Contacts. Accessed 2026-09-16.
Markel Insurance Official Website
- Markel Group Inc. 2025 Form 10-K. U.S. Securities and Exchange Commission; filed by Markel Group Inc.; Cover page; Part I, Item 1 Business—Markel Insurance, U.S. Wholesale and Specialty, Programs and Solutions; Part II, Item 7/8 for group and segment risks. Accessed 2026-09-28.
- About us. Markel; Markel at a glance; description of Markel Insurance within Markel Group Inc. Accessed 2026-09-28.
- US Product Disclaimer. Markel; U.S. underwriting/entity and state-availability disclaimer; identifies Markel West Insurance Services, California license #2E11302, for certain non-admitted coverage. It does not state Markel Service national producer license #27585 or California DBA license #0645481. Accessed 2026-09-29.
- Insurance Programs. Markel; FAQ and legal disclaimer at page end; coverage by Markel insurers, Markel Service, Incorporated national producer license #27585 and California DBA license #0645481, and Markel West Insurance Services California license #2E11302 for certain non-admitted products. Accessed 2026-09-29.
- AM Best Affirms Credit Ratings of Markel Group Inc. and Its Subsidiaries. AM Best; Press release dated November 21, 2025; paragraphs naming ratings, rating rationale, and Markel North America Insurance Group members. Accessed 2026-09-28.
- North America Producer Compensation Disclosure. Markel; Base commissions, contingent compensation, business production/additional incentives, and Markel Specialty/Markel Service/insurer role statement. Accessed 2026-09-28.
- U.S. and Bermuda Claims Contacts. Markel; April 2026 claims-contact PDF footer: Markel West, Inc. d/b/a Markel West Insurance Services, California license #0D95581; coverage by one or more Markel insurers and non-admitted routes. Accessed 2026-09-29.
- Small Business Insurance. Markel; Small business products; Types of companies—Child care and enrichment, Commercial and residential services, Sports and fitness, Manufacturing. Accessed 2026-09-28.
- Workers Compensation Insurance. Markel; Introductory quote/application route; claims question and report-a-claim contact. Accessed 2026-09-28.
- Commercial Lines Agents & Broker Support. Markel; mPortal and Markel Online access; resources; digital distribution. Accessed 2026-09-28.
- My Account. Markel US; Online account portal capabilities; Business insurance; unlisted-product direction. Accessed 2026-09-28.
- Request appointment with Markel. Markel; Commercial and personal lines agency partner criteria; product-specific affiliate appointments; producer-license requirement. Accessed 2026-09-28.
- Markel Insurance Companies. Markel; Notice to California and Massachusetts Applicants and Insureds; U.S.-domiciled property and casualty insurer subsidiaries and affiliates; table of company names and market status (page states current as of 2024-04-01). Accessed 2026-09-28.
- Small Business Casualty and Property Insurance. Markel; What we offer; product/liability, property, general casualty, inland marine, excess umbrella, liquor liability, hired/non-owned auto, employee benefits liability, E&O and equipment breakdown references. Accessed 2026-09-29.
- Workers Compensation Insurance. Markel; Product overview and quote route; workers compensation/employers liability, eligible industries, claim and loss-control descriptions. Accessed 2026-09-29.
- Cyber Insurance Coverage. Markel; Markel Cyber 360; coverages available, cyber incident response, business interruption, privacy/security liability, media liability and technology professional liability. Accessed 2026-09-29.
- ProBiz | Professional Liability Coverage. Markel; What is Markel ProBiz; separate management liability and miscellaneous E&O; listed limits and qualifying business size. Accessed 2026-09-29.
- Private and Nonprofit Management Liability Insurance. Markel; What we offer; private/nonprofit segment; D&O, EPL, fiduciary and optional coverage sections. Accessed 2026-09-29.
- Commercial Property Insurance. Markel; Commercial property product summary and eligible risks. Accessed 2026-09-29.
- Commercial Inland Marine Insurance. Markel; What we offer; inland marine classes, cargo, contractors equipment, transportation and coverage structure. Accessed 2026-09-29.
- Builders Risk Insurance. Markel; Coverage features; construction projects and builders-risk scope. Accessed 2026-09-29.
- Excess Casualty Insurance. Markel; Excess and umbrella liability and admitted/non-admitted capabilities. Accessed 2026-09-29.
- Markel Surety. Markel; Products; contract bonds, commercial bonds, court and probate bonds. Accessed 2026-09-29.
- Markel Insurance Company Complaints. Better Business Bureau; Company complaints summary: 12 in last three years, 3 closed in last 12 months; complaint-category counts and displayed case examples; headquarters and corporate-owned locations. Accessed 2026-09-29.





