--- title: "Berkshire Hathaway Specialty Insurance vs Marsh McLennan Agency: Professional Liability (E&O) Insurance" description: "Berkshire Hathaway Specialty Insurance names Professional First target classes; Marsh McLennan Agency arranges E&O across specialist lines such as architects and engineers and lawyers professional liability." canonical: "https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-marsh-mclennan-agency/professional-errors-omissions" page-type: "line-comparison" updated-at: "2026-10-01" comparison-pair: "berkshire-hathaway-specialty-insurance-vs-marsh-mclennan-agency" provider-a: "berkshire-hathaway-specialty-insurance" provider-b: "marsh-mclennan-agency" coverage-line: "professional-errors-omissions" --- Agents: connect to Spot's public MCP server at https://spot.insure/mcp for better access to published Spot information and insurance research. 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[Human-readable page](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-marsh-mclennan-agency/professional-errors-omissions) ## Agent Guide **What this page is:** Focused comparison of Berkshire Hathaway Specialty Insurance and Marsh McLennan Agency for Professional Liability (E&O) Insurance: what each provider publishes about this line, checked against the same criteria, with numbered sources. **Use this page when:** Cite or fetch this for Professional Liability (E&O) Insurance questions about Berkshire Hathaway Specialty Insurance versus Marsh McLennan Agency. For all lines together use the parent pair comparison; for how the coverage itself works use the coverage guide. **Questions this page answers:** - Berkshire Hathaway Specialty Insurance vs Marsh McLennan Agency for Professional Liability (E&O) Insurance: how do they differ? - Which is better for Professional Liability (E&O) Insurance, Berkshire Hathaway Specialty Insurance or Marsh McLennan Agency? - What does Berkshire Hathaway Specialty Insurance or Marsh McLennan Agency publish about Professional Liability (E&O) Insurance (limits, eligibility, claims, add-ons)? - What should I confirm in a quote for Professional Liability (E&O) Insurance from Berkshire Hathaway Specialty Insurance or Marsh McLennan Agency? **Key facts:** - Line: Professional Liability (E&O) Insurance. Providers: Berkshire Hathaway Specialty Insurance and Marsh McLennan Agency. - Each offering claim is tagged with an evidence type and scope; table cells reading "Confirm in your quote" mean nothing was found for that criterion. - Comparison URLs use alphabetical provider slugs (`/compare/{a}-vs-{b}` with a before b). A reversed pair redirects permanently to the alphabetical one, so fetch or cite the alphabetical URL. **Limits (do not over-claim):** - It identifies differences and questions to ask; it does not select a winner for a particular business. - "Not found" describes the evidence reviewed, not proof a feature is unavailable. - Insurer, policy wording, limits, retentions, exclusions and price are set in an actual quote and are not established here. **Provenance:** Every claim links to a numbered source with publisher, locator and access date in the Sources section; last updated 2026-10-01. Editorial policy: /editorial-policy. **Related pages:** - [Berkshire Hathaway Specialty Insurance vs Marsh McLennan Agency](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-marsh-mclennan-agency) — parent: all coverage lines for this pair - [Professional Liability (E&O) Insurance guide](https://spot.insure/coverage/professional-errors-omissions) — coverage explainer for this line - [Berkshire Hathaway Specialty Insurance profile](https://spot.insure/insurance-providers/berkshire-hathaway-specialty-insurance) — provider profile (evidence) - [Marsh McLennan Agency profile](https://spot.insure/insurance-providers/marsh-mclennan-agency) — provider profile (evidence) - [Berkshire Hathaway Specialty Insurance vs Marsh McLennan Agency Builders Risk Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-marsh-mclennan-agency/builders-risk) — sibling comparison (other line, or other pair for this line) - [Berkshire Hathaway Specialty Insurance vs Marsh McLennan Agency Cargo and Transit Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-marsh-mclennan-agency/cargo-transit) — sibling comparison (other line, or other pair for this line) - [Berkshire Hathaway Specialty Insurance vs Marsh McLennan Agency Commercial Property Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-marsh-mclennan-agency/commercial-property) — sibling comparison (other line, or other pair for this line) - [Berkshire Hathaway Specialty Insurance vs Marsh McLennan Agency Crime Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-marsh-mclennan-agency/crime) — sibling comparison (other line, or other pair for this line) - [Berkshire Hathaway Specialty Insurance vs Marsh McLennan Agency Cyber Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-marsh-mclennan-agency/cyber) — sibling comparison (other line, or other pair for this line) - [Berkshire Hathaway Specialty Insurance vs Marsh McLennan Agency D&O Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-marsh-mclennan-agency/directors-officers) — sibling comparison (other line, or other pair for this line) - [Berkshire Hathaway Specialty Insurance vs Marsh McLennan Agency Employment Practices Liability Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-marsh-mclennan-agency/employment-practices) — sibling comparison (other line, or other pair for this line) - [Berkshire Hathaway Specialty Insurance vs Marsh McLennan Agency Fiduciary Liability Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-marsh-mclennan-agency/fiduciary) — sibling comparison (other line, or other pair for this line) - [Berkshire Hathaway Specialty Insurance vs Marsh McLennan Agency General Liability Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-marsh-mclennan-agency/general-liability) — sibling comparison (other line, or other pair for this line) - [Berkshire Hathaway Specialty Insurance vs Marsh McLennan Agency Media Liability Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-marsh-mclennan-agency/media) — sibling comparison (other line, or other pair for this line) - [Berkshire Hathaway Specialty Insurance vs Marsh McLennan Agency Surety Bonds](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-marsh-mclennan-agency/surety-bonds) — sibling comparison (other line, or other pair for this line) - [AIG vs Berkshire Hathaway Specialty Insurance Professional Liability (E&O) Insurance](https://spot.insure/compare/aig-vs-berkshire-hathaway-specialty-insurance/professional-errors-omissions) — sibling comparison (other line, or other pair for this line) - [AIG vs Marsh McLennan Agency Professional Liability (E&O) Insurance](https://spot.insure/compare/aig-vs-marsh-mclennan-agency/professional-errors-omissions) — sibling comparison (other line, or other pair for this line) - [Alliance Risk vs Berkshire Hathaway Specialty Insurance Professional Liability (E&O) Insurance](https://spot.insure/compare/alliance-risk-vs-berkshire-hathaway-specialty-insurance/professional-errors-omissions) — sibling comparison (other line, or other pair for this line) - [Alliance Risk vs Marsh McLennan Agency Professional Liability (E&O) Insurance](https://spot.insure/compare/alliance-risk-vs-marsh-mclennan-agency/professional-errors-omissions) — sibling comparison (other line, or other pair for this line) - [Aon vs Berkshire Hathaway Specialty Insurance Professional Liability (E&O) Insurance](https://spot.insure/compare/aon-vs-berkshire-hathaway-specialty-insurance/professional-errors-omissions) — sibling comparison (other line, or other pair for this line) - [Aon vs Marsh McLennan Agency Professional Liability (E&O) Insurance](https://spot.insure/compare/aon-vs-marsh-mclennan-agency/professional-errors-omissions) — sibling comparison (other line, or other pair for this line) # Berkshire Hathaway Specialty Insurance vs Marsh McLennan Agency: How Do They Compare for Professional Liability (E&O) Insurance? Berkshire Hathaway Specialty Insurance names Professional First target classes; Marsh McLennan Agency arranges E&O across specialist lines such as architects and engineers and lawyers professional liability. ## How to Use the Berkshire Hathaway Specialty Insurance vs Marsh McLennan Agency Professional Liability (E&O) Insurance Comparison Use this comparison to evaluate Berkshire Hathaway Specialty Insurance and Marsh McLennan Agency for Professional Liability (E&O) Insurance against the same documented criteria. It identifies differences and questions to confirm; it does not select a winner for a particular business. Offering claims are what each provider publishes about this line unless marked otherwise. “Not found” describes the evidence reviewed, not proof that a feature is unavailable. Confirm the insurer, policy wording, limits, retentions, exclusions and cost in an actual quote. ## Berkshire Hathaway Specialty Insurance vs Marsh McLennan Agency Professional Liability (E&O) Insurance Summary Berkshire Hathaway Specialty Insurance names target classes within its portfolio, while Marsh McLennan Agency describes separate specialist E&O lines including architects and engineers and lawyers liability. [6](https://www.bhspecialty.com/wp-content/uploads/marketing/Professional-First-Professional-Liability-Overview-US.pdf "Professional First Professional Liability Overview") [10](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA") ## What Is Berkshire Hathaway Specialty Insurance? BHSI provides commercial and specialty insurance in the U.S., with product-specific industry lists that include healthcare, energy and technology. Online quote and application submissions are nonbinding. [1](https://www.bhspecialty.com/wp-content/uploads/marketing/Interactive-AAG.pdf "At A Glance") [2](https://www.bhspecialty.com/about-us/ "About Us") [3](https://www.bhspecialty.com/terms-conditions/ "Terms of Service") [4](https://www.bhspecialty.com/asia/singapore-products/berkshire-hathaway-specialty-insurance-singapore-branch/ "Public Disclosure — Berkshire Hathaway Specialty Insurance Singapore Branch") [Berkshire Hathaway Specialty Insurance profile](https://spot.insure/insurance-providers/berkshire-hathaway-specialty-insurance) ## What Is Marsh McLennan Agency? Marsh McLennan Agency provides business insurance and employee health and benefits, alongside retirement, wealth, and private-client services across the United States and Canada. Its US small-business page lists six common coverage types and directs buyers to request a personalized quote by phone; the insurer and terms for a specific placement must be confirmed in the proposal. [8](https://www.marshmma.com/us/mma/about-us.html "Who We Are") [9](https://www.marshmma.com/us/solutions/small-business.html "Small Business Insurance Solutions") [Marsh McLennan Agency profile](https://spot.insure/insurance-providers/marsh-mclennan-agency) ## 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. [11](https://www.tdi.texas.gov/commercial/pl-faq.html "FAQ: Professional liability insurance") [12](https://www.iii.org/article/professional-liability-insurance "Professional liability insurance") [13](https://www.sba.gov/counseling/launch-your-business/#business-insurance "Get business insurance") [14](https://www.hiscox.com/documents/pl-sample-policy-wording.pdf "Professional Liability – US Direct Errors and Omissions Insurance") ## What Are the Key Differences Between Berkshire Hathaway Specialty Insurance and Marsh McLennan Agency Professional Liability (E&O) Insurance? ### Named targets and specialist lines Berkshire Hathaway Specialty Insurance names staffing firms, management consultants, marketing firms and real-estate firms as Miscellaneous Professional Liability targets, while its overview separately lists law-firm size bands. Marsh McLennan Agency describes E&O placement across specialist lines including architects and engineers and lawyers professional liability, rather than presenting them as one form. If your business crosses professional categories, the distinction affects which application and wording you should request from either source. [6](https://www.bhspecialty.com/wp-content/uploads/marketing/Professional-First-Professional-Liability-Overview-US.pdf "Professional First Professional Liability Overview") [10](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA") ### Placement and actual policy terms Marsh McLennan Agency invites organizations to work with an adviser or specialist; BHSI’s overview describes a portfolio with several product types. Neither overview establishes your final coverage, limits or availability. BHSI’s architects, engineers and consultants form includes other exposures alongside professional liability, so confirm whether that combined form is relevant before comparing it with an MMA placement for a single professional line. [10](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA") [7](https://www.bhspecialty.com/us-products/us-executive-and-professional-lines/professional-liability/professional-firsttm-architects-engineers-and-consultants-professional-liability/ "Professional First Architects, Engineers and Consultants Professional Liability") ## What Should You Confirm in Berkshire Hathaway Specialty Insurance and Marsh McLennan Agency Professional Liability (E&O) Insurance Quotes? - Ask MMA which specialist line and carrier it would approach for your profession. [10](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA") - Ask BHSI for the exact form and whether its combined design-industry coverage applies to your services. [7](https://www.bhspecialty.com/us-products/us-executive-and-professional-lines/professional-liability/professional-firsttm-architects-engineers-and-consultants-professional-liability/ "Professional First Architects, Engineers and Consultants Professional Liability") - Compare limits, exclusions and any technology, media or cyber components in the issued wording. [10](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA") [6](https://www.bhspecialty.com/wp-content/uploads/marketing/Professional-First-Professional-Liability-Overview-US.pdf "Professional First Professional Liability Overview") ## Berkshire Hathaway Specialty Insurance vs Marsh McLennan Agency Professional Liability (E&O) Compared | Criteria | Professional First Professional Liability portfolio | Marsh McLennan Agency professional errors omissions (official overview) | | --- | --- | --- | | Role in This Line | Confirm in your quote. | Marsh McLennan Agency describes arranging professional errors omissions for the audience stated on the cited product page. [10](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA") (Evidence: Company-reported; scope: professional errors omissions marketed by marsh-mclennan-agency; scope is limited to the cited official product overview and described audience. This is not a policy form or a universal eligibility statement..) | | Who It’s For | The overview names staffing firms, management consultants, marketing firms and real-estate firms as targeted customers for Miscellaneous Professional Liability; it separately lists law-firm size bands for Lawyers Professional Liability. [6](https://www.bhspecialty.com/wp-content/uploads/marketing/Professional-First-Professional-Liability-Overview-US.pdf "Professional First Professional Liability Overview") (Evidence: Company-reported; scope: U.S. Professional First target statements; class-specific eligibility only..) | Organizations seeking professional liability placement; source does not imply all professions share one policy. [10](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA") (Evidence: Company-reported; scope: professional errors omissions marketed by marsh-mclennan-agency; scope is limited to the cited official product overview and described audience. This is not a policy form or a universal eligibility statement..) | | Coverage Features | BHSI’s U.S. Professional First overview identifies Lawyers Professional Liability and Miscellaneous Professional Liability alongside Technology E&O and Media Liability. [6](https://www.bhspecialty.com/wp-content/uploads/marketing/Professional-First-Professional-Liability-Overview-US.pdf "Professional First Professional Liability Overview") [5](https://www.bhspecialty.com/us-products/us-executive-and-professional-lines/professional-liability/ "Professional First Professional Liability") (Evidence: Company-reported; scope: Portfolio catalogue statement; the specific legal/professional class and form must be selected rather than treating the offerings as one policy..)

For architects, engineers and consultants, BHSI describes a professional-liability form that also addresses pollution, media, technology and cyber/network-security exposures. [7](https://www.bhspecialty.com/us-products/us-executive-and-professional-lines/professional-liability/professional-firsttm-architects-engineers-and-consultants-professional-liability/ "Professional First Architects, Engineers and Consultants Professional Liability") (Evidence: Company-reported; scope: This is a specialized design-industry combined form, not generic E&O wording or proof that all risks receive each component..) | The cited product page describes E&O and named specialist professional lines, including architects and engineers and lawyers professional liability; the overview does not treat them as one form. Marketing description only; actual coverage, exclusions, conditions, limits, and availability depend on the issued policy and jurisdiction. [10](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA") (Evidence: Company-reported; scope: professional errors omissions marketed by marsh-mclennan-agency; scope is limited to the cited official product overview and described audience. This is not a policy form or a universal eligibility statement..) | | Limits and Retentions | Confirm in your quote. | 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. [10](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA") (Evidence: Not publicly disclosed; scope: Only the cited marketing page was reviewed for published limit and retention information; no policy-form entitlement is inferred..) | | Risk Services | The Professional First overview describes its in-house claims handling group as experienced in complex, high-value claims and integrated with underwriting. [6](https://www.bhspecialty.com/wp-content/uploads/marketing/Professional-First-Professional-Liability-Overview-US.pdf "Professional First Professional Liability Overview") (Evidence: Company-reported; scope: Company-reported portfolio-level claim-service description, not independently measured claims performance..) | Confirm in your quote. | | How to Apply | Confirm in your quote. | The page invites organizations to contact a Marsh McLennan Agency adviser or specialist to discuss placement. The page does not establish a quote, bind, or coverage-effective timeline. [10](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html "Executive and Professional Liability | MMA") (Evidence: Company-reported; scope: professional errors omissions marketed by marsh-mclennan-agency; scope is limited to the cited official product overview and described audience. This is not a policy form or a universal eligibility statement..) | ## Related Pages for Berkshire Hathaway Specialty Insurance vs Marsh McLennan Agency - [Berkshire Hathaway Specialty Insurance vs Marsh McLennan Agency](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-marsh-mclennan-agency): all coverage lines, business roles, service and claims. - [What Is Professional Errors and Omissions (E&O) Insurance?](https://spot.insure/coverage/professional-errors-omissions): Professional liability can help pay covered defense costs and losses when a client says your advice or service caused financial harm; check services and reporting terms. - [Berkshire Hathaway Specialty Insurance vs Marsh McLennan Agency Builders Risk Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-marsh-mclennan-agency/builders-risk) - [Berkshire Hathaway Specialty Insurance vs Marsh McLennan Agency Cargo and Transit Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-marsh-mclennan-agency/cargo-transit) - [Berkshire Hathaway Specialty Insurance vs Marsh McLennan Agency Commercial Property Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-marsh-mclennan-agency/commercial-property) - [Berkshire Hathaway Specialty Insurance vs Marsh McLennan Agency Crime Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-marsh-mclennan-agency/crime) - [Berkshire Hathaway Specialty Insurance vs Marsh McLennan Agency Cyber Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-marsh-mclennan-agency/cyber) - [Berkshire Hathaway Specialty Insurance vs Marsh McLennan Agency D&O Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-marsh-mclennan-agency/directors-officers) - [Berkshire Hathaway Specialty Insurance vs Marsh McLennan Agency Employment Practices Liability Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-marsh-mclennan-agency/employment-practices) - [Berkshire Hathaway Specialty Insurance vs Marsh McLennan Agency Fiduciary Liability Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-marsh-mclennan-agency/fiduciary) - [Berkshire Hathaway Specialty Insurance vs Marsh McLennan Agency General Liability Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-marsh-mclennan-agency/general-liability) - [Berkshire Hathaway Specialty Insurance vs Marsh McLennan Agency Media Liability Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-marsh-mclennan-agency/media) - [Berkshire Hathaway Specialty Insurance vs Marsh McLennan Agency Surety Bonds](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-marsh-mclennan-agency/surety-bonds) - [AIG vs Berkshire Hathaway Specialty Insurance Professional Liability (E&O) Insurance](https://spot.insure/compare/aig-vs-berkshire-hathaway-specialty-insurance/professional-errors-omissions) - [AIG vs Marsh McLennan Agency Professional Liability (E&O) Insurance](https://spot.insure/compare/aig-vs-marsh-mclennan-agency/professional-errors-omissions) - [Alliance Risk vs Berkshire Hathaway Specialty Insurance Professional Liability (E&O) Insurance](https://spot.insure/compare/alliance-risk-vs-berkshire-hathaway-specialty-insurance/professional-errors-omissions) - [Alliance Risk vs Marsh McLennan Agency Professional Liability (E&O) Insurance](https://spot.insure/compare/alliance-risk-vs-marsh-mclennan-agency/professional-errors-omissions) - [Aon vs Berkshire Hathaway Specialty Insurance Professional Liability (E&O) Insurance](https://spot.insure/compare/aon-vs-berkshire-hathaway-specialty-insurance/professional-errors-omissions) - [Aon vs Marsh McLennan Agency Professional Liability (E&O) Insurance](https://spot.insure/compare/aon-vs-marsh-mclennan-agency/professional-errors-omissions) ## Sources for Berkshire Hathaway Specialty Insurance vs Marsh McLennan Agency ### Sources About Berkshire Hathaway Specialty Insurance 1. [At A Glance](https://www.bhspecialty.com/wp-content/uploads/marketing/Interactive-AAG.pdf). Berkshire Hathaway Specialty Insurance; United States section, zero-based PDF pages 49–53 (viewer pages 50–54): product/industry lists on pages 49–50; U.S. disclosure/version footer on page 53 is 2026-8-03 A. The 2026-09-14 A footer is on preceding European page 48, not the U.S. section.. Accessed 2026-09-29. 2. [About Us](https://www.bhspecialty.com/about-us/). Berkshire Hathaway Specialty Insurance; About BHSI; company profile page re-opened through official site on 2026-09-28; company says it is part of National Indemnity group. Accessed 2026-09-28. 3. [Terms of Service](https://www.bhspecialty.com/terms-conditions/). Berkshire Hathaway Specialty Insurance; Important Information Concerning Use of this Web Site, paragraphs 2–4; nonbinding submissions, contracted-agent authority, state variation, product availability and policy-specific terms. Accessed 2026-09-28. 4. [Public Disclosure — Berkshire Hathaway Specialty Insurance Singapore Branch](https://www.bhspecialty.com/asia/singapore-products/berkshire-hathaway-specialty-insurance-singapore-branch/). Berkshire Hathaway Specialty Insurance; Singapore branch public disclosure, Company Profile ¶¶ 1–2; direct page opened 2026-09-28. ¶ 1 identifies BHSIC as a Nebraska-domiciled direct P&C insurer; ¶ 2 states BHSIC is wholly owned by National Indemnity Company, itself wholly owned by Berkshire Hathaway Incorporated.. Accessed 2026-09-28. 5. [Professional First Professional Liability](https://www.bhspecialty.com/us-products/us-executive-and-professional-lines/professional-liability/). Berkshire Hathaway Specialty Insurance; U.S. Professional Liability landing page links Professional Liability / Network Security & Privacy, stand-alone Network Security & Privacy, and Architects, Engineers and Consultants PL, lines 6–15; footer copyright © 2026.. Accessed 2026-09-28. 6. [Professional First Professional Liability Overview](https://www.bhspecialty.com/wp-content/uploads/marketing/Professional-First-Professional-Liability-Overview-US.pdf). Berkshire Hathaway Specialty Insurance; PDF pp.1–2: claims group and reporting; primary blended E&O/Cyber and stand-alone Cyber forms; line capacity statement; named Lawyers PL, Technology E&O, Miscellaneous PL, Media Liability, Network Security & Privacy; named technology-services target types and selection categories; dated 2026-06-03-A. Group capacity not a line policy limit. Source version: 2026-06-03-A.. Accessed 2026-09-28. 7. [Professional First Architects, Engineers and Consultants Professional Liability](https://www.bhspecialty.com/us-products/us-executive-and-professional-lines/professional-liability/professional-firsttm-architects-engineers-and-consultants-professional-liability/). Berkshire Hathaway Specialty Insurance; Product Highlights: professional/pollution liability; media, technology and cyber/network security/privacy liability; direct breach/extortion expenses; risk services; primary/excess and project-specific product availability; target professions, lines 6–29. Its combined-form technology feature is not itself a standalone Tech E&O statement.. Accessed 2026-09-28. ### Sources About Marsh McLennan Agency 8. [Who We Are](https://www.marshmma.com/us/mma/about-us.html). Marsh McLennan Agency; Lines 193-195: ‘a business of Marsh’ and company-listed service lines across US and Canada. This does not establish the legal entity for an account, corporate ownership chart, or insurer role.. Accessed 2026-09-29. 9. [Small Business Insurance Solutions](https://www.marshmma.com/us/solutions/small-business.html). Marsh McLennan Agency; Lines 205-207: small-business audience and call invitation; lines 224-249 list six coverage categories and short descriptions; line 264 is an embedded form whose function is not stated. No form submitted.. Accessed 2026-09-29. 10. [Executive and Professional Liability | MMA](https://www.marshmma.com/us/solutions/executive-and-professional-liability.html). Marsh McLennan Agency; E&O, architects and engineers, and lawyers professional lines are named in the policy suite.. Accessed 2026-09-30. ### Sources for the Professional Liability (E&O) Insurance Guide 11. [FAQ: Professional liability insurance](https://www.tdi.texas.gov/commercial/pl-faq.html). 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. 12. [Professional liability insurance](https://www.iii.org/article/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. 13. [Get business insurance](https://www.sba.gov/counseling/launch-your-business/#business-insurance). U.S. Small Business Administration; Six common types of business insurance table. Accessed 2026-09-16. 14. [Professional Liability – US Direct Errors and Omissions Insurance](https://www.hiscox.com/documents/pl-sample-policy-wording.pdf). 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 2026-10-01. 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. ## Berkshire Hathaway Specialty Insurance Review Scores for 2026 Review Score: not enough ratings. The public ratings for Berkshire Hathaway Specialty Insurance are low but thin: Trustpilot shows 2.1 out of 5 from 9 reviews and BBB shows 1 out of 5 from 6. Both mix travel and commercial customers, so we don't count them in a score. - Trustpilot: TrustScore 2.1 (out of 5); 9 reviews. Trustpilot profile for bhspecialty.com, accessed 2026-09-29. Its small review set mixes travel-policy and other customer accounts; it is user-generated and unverified, and does not establish commercial-policy outcomes or representativeness. Period: Displayed when checked 2026-09-29. Checked 2026-09-29. [Berkshire Hathaway Specialty Insurance Reviews](https://www.trustpilot.com/review/bhspecialty.com) - BBB: Customer review average 1 (out of 5 stars); 6 reviews. BBB page for BHSI headquarters and corporate-owned locations, accessed 2026-09-29. The page’s six customer reviews mix travel and commercial narratives; BBB says third-party information is not verified. BBB’s business letter grade is separate from these customer reviews. Period: Displayed when checked 2026-09-29. Checked 2026-09-29. [Berkshire Hathaway Specialty Insurance — BBB Reviews](https://www.bbb.org/us/ma/boston/profile/insurance-agency/berkshire-hathaway-specialty-insurance-0021-439678/customer-reviews) Reviewed 2026-09-29. [Read the sourced review](https://spot.insure/insurance-providers/berkshire-hathaway-specialty-insurance/reviews). ## Marsh McLennan Agency Review Scores for 2026 Review Score: 8.2 / 10 from 2 rated sources, equally weighted. There are almost no public customer reviews of Marsh McLennan Agency (MMA). Trustpilot shows 3.2 out of 5, but from a single review, and BBB shows an A grade with four complaints closed in three years. - Trustpilot: TrustScore 3.2 (out of 5); 1 reviews. Trustpilot profile for marshmma.com, MMA's own domain. Unclaimed; MMA has not invited reviews. Period: checked 2026-09-29. Checked 2026-09-29. [marshmma.com Trustpilot profile](https://www.trustpilot.com/review/marshmma.com) - Trustpilot: TrustScore (Marsh brand) 1.3 (out of 5); 115 reviews. Trustpilot page for marsh.com, the global Marsh brand (mostly individual and non-US customers). This is a different entity from MMA. Period: checked 2026-09-29. Checked 2026-09-29. [Marsh Reviews](https://www.trustpilot.com/review/www.marsh.com) - BBB: BBB business grade A. BBB San Diego-area profile for Marsh & McLennan Agency LLC (accredited). MMA has separate BBB profiles per office; Dayton and Schaumburg both show A+. Checked 2026-09-29. [Marsh & McLennan Agency LLC (San Diego) BBB](https://www.bbb.org/us/ca/san-diego/profile/insurance-services-office/marsh-mclennan-agency-llc-1126-3000103) - BBB: Complaints 4. Same San Diego-area profile; zero customer reviews. No client-count denominator. Period: closed in the last three years (checked 2026-09-29). Checked 2026-09-29. [Marsh & McLennan Agency LLC — BBB Complaints](https://www.bbb.org/us/ca/san-diego/profile/insurance-services-office/marsh-mclennan-agency-llc-1126-3000103/complaints); [Marsh & McLennan Agency LLC — BBB Reviews](https://www.bbb.org/us/ca/san-diego/profile/insurance-services-office/marsh-mclennan-agency-llc-1126-3000103/customer-reviews) Reviewed 2026-09-29. [Read the sourced review](https://spot.insure/insurance-providers/marsh-mclennan-agency/reviews). ## Agent and Developer Resources - [Markdown page](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-marsh-mclennan-agency/professional-errors-omissions.md) - [Developer resources](https://spot.insure/developers) - [Public MCP server](https://spot.insure/mcp) - [MCP server manifest](https://spot.insure/server.json) - [OpenAPI description](https://spot.insure/openapi.json) - [Public page index](https://spot.insure/llms.txt)