CNA vs THREE by Berkshire Hathaway: How Do They Compare for Professional Liability (E&O) Insurance?

CNA names modular E&O and cyber programs for professional firms and technology businesses; THREE markets E&O within its Business Owners Policy and offers an online quote route. 4,5,8

CNA Small Business Insurance: Products, Agents and Service

CNA directs small-business buyers to independent agents and describes CNA Connect as a businessowners policy for more than 600 small-business classes. Issuer and availability vary by policy and state, so confirm both in a quote. 1,2,3

Read the CNA profile

Read the CNA Professional Liability (E&O) Insurance page

THREE small business insurance: coverage, issuer and buying routes

THREE markets a packaged commercial insurance product through a direct quote route and partner agents. Berkshire Hathaway Direct Insurance Company is named as issuer on THREE’s sample policy. 6,7

Read the THREE by Berkshire Hathaway profile

Read the THREE by Berkshire Hathaway Professional Liability (E&O) Insurance page

What Is Professional Errors and Omissions (E&O) Insurance?

Professional liability can help pay defense costs and covered losses when a client says your advice or service caused financial harm. If customers rely on your work, list every service you provide and check the claims-made reporting and prior-work terms. 9,10,11,12

Read the full coverage guide

Key Differences in Professional Liability (E&O) Insurance

Separate E&O program choices or a bundled BOP

CNA describes Epack 3 as a modular combination of technology and professional liability with cyber and media, and EPS Plus as E&O with cyber for professional-services firms. THREE lists Errors & Omissions within its combined Business Owners Policy rather than identifying a standalone E&O policy on the reviewed page. That distinction affects how you compare bundled pricing and coverage: request the CNA module or THREE BOP schedule showing exactly which E&O protection is selected. 4 8

Confirming what the quote actually includes

CNA specifically markets Technology E&O for technology businesses facing professional-liability exposures and contractual requirements. THREE’s page lists E&O as a coverage category, but that listing does not establish that it appears in your quote or responds to a particular claim. CNA also describes dedicated claims and risk-control support, while the reviewed THREE claims focus on package placement and quote assistance. Ask THREE to confirm E&O inclusion and wording, and ask CNA which technology or professional-services form matches your work. 4 8

What to Confirm in Professional Liability (E&O) Insurance Quotes

  • Does the THREE quote include E&O, and what form, limit and exclusions apply to that category? 4
  • Which CNA program is proposed, and how does its E&O respond to the professional services in your contracts? 8

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.

CNA

9.0/ 10

Review Score

1 rated source

Customer feedback on CNA is mixed and hard to compare. NerdWallet gave it 4.5 out of 5 for manufacturers, while Trustpilot shows about 1.4 out of 5 from 49 mostly self-selected reviews.[1][5]

Read CNA reviews

THREE by Berkshire Hathaway

7.3/ 10

Review Score

2 rated sources

The inspected sources report separate measures: NerdWallet’s 4.0/5 editorial rating is excluded from the source-rating average; Trustpilot displayed 2.5/5 from five user posts and BBB displayed 4.8/5 from 265 reviews. Trustpilot and BBB include different purchase, service and agent/intermediary interactions, not a verified common policyholder cohort. BBB separately lists complaints. Any source-rating average weights eligible platforms equally and is not a pooled, representative customer-experience estimate or a claims-quality measure.[4][3][1][2]

Read THREE by Berkshire Hathaway reviews

Offering Details

CNA vs THREE by Berkshire Hathaway: Professional Liability (E&O) Insurance: documented features by provider

CriteriaCNA Professional and Technology LiabilityTHREE Business Owners Policy
Role in This Line

CNA describes Epack 3 as combining technology and professional liability with cyber and media in a modular policy; EPS Plus combines E&O and cyber for professional-services firms. 4,5Company-reported. These are separate product routes and are not evidence that technology E&O and miscellaneous E&O share identical wording.

THREE presents Errors and Omissions as a component of its combined Business Owners Policy rather than identifying it as a separate standalone policy on the reviewed product page. 8Company-reported. Company-described U.S. package structure. The page does not establish underwriting terms or that every listed category will be included for every applicant.

Issuing Insurer

Confirm in your quote.

The linked sample policy's declarations identify Berkshire Hathaway Direct Insurance Company as issuer. 7Company-reported. This is the issuer named on the public sample only; the sample does not establish the issuing entity for every state-specific quote or buyer's issued policy.

Who It’s For

CNA says its Miscellaneous Professional Liability targets non-licensed professional classes such as consultants, staffing firms, advertising agencies and event planners. 4Company-reported. The listed classes are a target list, not a complete or guaranteed eligibility rule.

The reviewed product page does not state separate eligibility rules for Errors and Omissions; the general quote and advisor route is not proof that a particular business qualifies for it. 8,6Not publicly disclosed. Eligibility and state availability remain unestablished for an individual risk until THREE returns its quote and applicable forms.

Coverage Features

CNA markets Technology E&O for technology businesses facing professional-liability exposures and says it is intended to support contractual requirements. 4Company-reported. The page is a summary and does not define covered services, contract exceptions or policy triggers.

THREE's Business Owners Policy page lists Errors & Omissions among its marketed coverage categories in the combined policy. This describes the product page, not whether the category appears in a particular quote or responds to a loss. 8,7Company-reported. Official THREE package marketing for Errors and Omissions. The sample policy is state-selectable and does not establish that this item is included in every quote or issued policy.

Limits and Retentions

Confirm in your quote.

The reviewed public product page does not state a separate limit or deductible for Errors and Omissions; THREE says the quote-specific insurance summary lists limits and deductibles. 8,7Not publicly disclosed. No number is inferred from the sample policy. The quote and issued declarations control the buyer-specific limit and deductible.

Risk Services

CNA describes dedicated claims and risk-control support for its cyber, media, technology and professional-liability business. 4Company-reported. This portfolio-level statement does not establish a service outcome or a line-specific claims protocol.

Confirm in your quote.

How to Apply

Confirm in your quote.

THREE directs small-business prospects to an online quote and says licensed Small Business Advisors can help with the process. 6Company-reported. This is the route for the overall THREE product. It does not show whether Errors and Omissions will be offered for a particular business or whether a customer can bind that line without an issued policy.

Full Comparison

More CNA vs THREE by Berkshire Hathaway Comparisons

Other Professional Liability (E&O) Insurance Comparisons

Sources

CNA

  1. Insurance for Small Businesses. CNA; Insurance for Small Businesses, lines 38-50 and 65-67 (CNA Central and agent route); lines 79-106 (product and stated appetite lists); page footer line 132 (CNA registered service mark). Accessed 2026-09-28.
  2. CNA Connect Small Businessowners Policy (BOP) | CNA Insurance. CNA; CNA Connect; coverages, product range, services. Accessed 2026-09-28.
  3. General Disclaimer. CNA; General Disclaimer paragraphs 1 and 5 (HTML lines 24 and 28): CNA describes Continental Casualty Company and its relevant affiliates; references to CNA may include one or more CCC affiliates; each particular policy/product/service is the responsibility only of the specific CNA company that issues or supplies it. Footer line 57 identifies CNA Financial Corporation as trademark registrant. Re-read 2026-09-29. Accessed 2026-09-29.
  4. Cyber Insurance - Cyber Risk Solutions. CNA; Current U.S. page: Epack 3 combines cyber, media, technology and professional liability; MPL appetite, media support, technology E&O, claims and risk-control descriptions. Retrieved 2026-09-30. Accessed 2026-09-30.
  5. Epack 3 – Cyber, Media, Technology & Professional Liability. CNA; Official sell sheet: modular bundled policy, media coverages and possible extensions, technology/professional line descriptions and quote process for small risks. Marketing summary expressly defers to issued policy. Retrieved 2026-09-30. Accessed 2026-09-30.

THREE by Berkshire Hathaway

  1. Jargon-free small business insurance - THREE by Berkshire Hathaway. Berkshire Hathaway Direct Insurance Company, dba THREE; Lines 23, 39, 70–81 and 406–410: business location quote entry, single-policy description, issuer, business focus, online quote and licensed Small Business Advisor route. Quote entry inspected without submitting a form. Accessed 2026-09-30.
  2. The Policy: 3 Jargon-free pages - THREE by Berkshire Hathaway. Berkshire Hathaway Direct Insurance Company, dba THREE; State-selectable sample policy: Summary (Declarations) identifies Berkshire Hathaway Direct Insurance Company as issuer and says the insurance summary lists limits and deductibles; sample policy text and state selection do not establish terms for a particular quote or issued policy. Accessed 2026-09-30.
  3. Business Owners Policy - THREE by Berkshire Hathaway. Berkshire Hathaway Direct Insurance Company, dba THREE; Product page: “No need for multiple policies” and one comprehensive policy; Business Liability, Property and Business Auto categories and the listed line names. Product page footer identifies Berkshire Hathaway Direct Insurance Company, dba THREE. Accessed 2026-09-30.

Professional Liability (E&O) Insurance Guide

  1. 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.
  2. 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.
  3. Get business insurance. U.S. Small Business Administration; Six common types of business insurance table. Accessed 2026-09-16.
  4. 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.

Updated . 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. To suggest a correction, contact Spot with the page URL and supporting source.

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