--- title: "Berkshire Hathaway Specialty Insurance vs biBerk: Umbrella and Excess Liability Insurance" description: "biBerk requires its umbrella to sit over existing liability coverage and specifies which underlying lines apply, while Berkshire Hathaway Specialty Insurance offers lead, follow-form and retained-limit options." canonical: "https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-biberk/umbrella-excess" page-type: "line-comparison" updated-at: "2026-10-01" comparison-pair: "berkshire-hathaway-specialty-insurance-vs-biberk" provider-a: "berkshire-hathaway-specialty-insurance" provider-b: "biberk" coverage-line: "umbrella-excess" --- Agents: connect to Spot's public MCP server at https://spot.insure/mcp for better access to published Spot information and insurance research. Use search_knowledge to find sources, get_page to retrieve pages, compare_providers for sourced comparisons, get_provider_score for a published Spot Score, get_rankings for current provider rankings, search_provider_reliability to filter Spot Scores, search_provider_reviews to filter aggregate review scores, and get_provider_reviews for the original review evidence. The server is read-only and requires no authentication. [Human-readable page](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-biberk/umbrella-excess) ## Agent Guide **What this page is:** Focused comparison of Berkshire Hathaway Specialty Insurance and biBerk for Umbrella and Excess Liability 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 Umbrella and Excess Liability Insurance questions about Berkshire Hathaway Specialty Insurance versus biBerk. 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 biBerk for Umbrella and Excess Liability Insurance: how do they differ? - Which is better for Umbrella and Excess Liability Insurance, Berkshire Hathaway Specialty Insurance or biBerk? - What does Berkshire Hathaway Specialty Insurance or biBerk publish about Umbrella and Excess Liability Insurance (limits, eligibility, claims, add-ons)? - What should I confirm in a quote for Umbrella and Excess Liability Insurance from Berkshire Hathaway Specialty Insurance or biBerk? **Key facts:** - Line: Umbrella and Excess Liability Insurance. Providers: Berkshire Hathaway Specialty Insurance and biBerk. - 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 biBerk](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-biberk) — parent: all coverage lines for this pair - [Umbrella and Excess Liability Insurance guide](https://spot.insure/coverage/umbrella-excess) — coverage explainer for this line - [Berkshire Hathaway Specialty Insurance profile](https://spot.insure/insurance-providers/berkshire-hathaway-specialty-insurance) — provider profile (evidence) - [biBerk profile](https://spot.insure/insurance-providers/biberk) — provider profile (evidence) - [Berkshire Hathaway Specialty Insurance vs biBerk Cyber Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-biberk/cyber) — sibling comparison (other line, or other pair for this line) - [Berkshire Hathaway Specialty Insurance vs biBerk General Liability Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-biberk/general-liability) — sibling comparison (other line, or other pair for this line) - [Berkshire Hathaway Specialty Insurance vs biBerk Professional Liability (E&O) Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-biberk/professional-errors-omissions) — sibling comparison (other line, or other pair for this line) - [AIG vs Berkshire Hathaway Specialty Insurance Umbrella and Excess Liability Insurance](https://spot.insure/compare/aig-vs-berkshire-hathaway-specialty-insurance/umbrella-excess) — sibling comparison (other line, or other pair for this line) - [AIG vs biBerk Umbrella and Excess Liability Insurance](https://spot.insure/compare/aig-vs-biberk/umbrella-excess) — sibling comparison (other line, or other pair for this line) - [Alliance Risk vs Berkshire Hathaway Specialty Insurance Umbrella and Excess Liability Insurance](https://spot.insure/compare/alliance-risk-vs-berkshire-hathaway-specialty-insurance/umbrella-excess) — sibling comparison (other line, or other pair for this line) - [Alliance Risk vs biBerk Umbrella and Excess Liability Insurance](https://spot.insure/compare/alliance-risk-vs-biberk/umbrella-excess) — sibling comparison (other line, or other pair for this line) - [Amelia Risk vs Berkshire Hathaway Specialty Insurance Umbrella and Excess Liability Insurance](https://spot.insure/compare/amelia-risk-vs-berkshire-hathaway-specialty-insurance/umbrella-excess) — sibling comparison (other line, or other pair for this line) - [Amelia Risk vs biBerk Umbrella and Excess Liability Insurance](https://spot.insure/compare/amelia-risk-vs-biberk/umbrella-excess) — sibling comparison (other line, or other pair for this line) # Berkshire Hathaway Specialty Insurance vs biBerk: How Do They Compare for Umbrella and Excess Liability Insurance? biBerk requires its umbrella to sit over existing liability coverage and specifies which underlying lines apply, while Berkshire Hathaway Specialty Insurance offers lead, follow-form and retained-limit options. ## How to Use the Berkshire Hathaway Specialty Insurance vs biBerk Umbrella and Excess Liability Insurance Comparison Use this comparison to evaluate Berkshire Hathaway Specialty Insurance and biBerk for Umbrella and Excess Liability 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 biBerk Umbrella and Excess Liability Insurance Summary biBerk says its umbrella follows only coverages included in the underlying policy and illustrates exclusions; Berkshire Hathaway Specialty Insurance lists lead umbrella, follow-form excess and retained-limit structures with stated capacity. [6](https://www.bhspecialty.com/us-products/us-casualty/ "Casualty") [9](https://www.biberk.com/small-business-insurance/umbrella-insurance "Umbrella Insurance From biBerk | Get Coverage Today") ## 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 biBerk Insurance? biBerk focuses on small businesses and describes a direct online path to answer business questions, choose coverage and pay, with an insurance expert available to help. Before you plan around online checkout, confirm that your state and the insurance you need are supported; biBerk says availability depends on both. [7](https://www.biberk.com/ "Small Business Insurance From biBerk | Get A Quote Online") [8](https://www.biberk.com/about-biberk "About biBerk | Making Small Business Insurance Simple") [biBerk profile](https://spot.insure/insurance-providers/biberk) ## What Is Umbrella and Excess Liability Insurance? Umbrella or excess insurance adds liability limits above the policies named in the quote after a covered claim exhausts their limits. It may fit if a contract sets higher limits; check which primary policies are listed and any gaps between them. [10](https://www.iii.org/publication/insuring-your-business-small-business-owners-guide-to-insurance/specific-coverages/liability-insurance "Liability Insurance") [11](https://www.insurance.ca.gov/01-consumers/105-type/95-guides/09-comm/commercialguide.cfm "Commercial Insurance Guide") [12](https://www.insurance.ca.gov/0200-industry/0050-renew-license/0200-requirements/casualty/lines-of-ins.cfm "Lines of Insurance") [13](https://www.coverdash.com/coverage "Coverage Hub") [14](https://kinro.com/products "Products") ## What Are the Key Differences Between Berkshire Hathaway Specialty Insurance and biBerk Umbrella and Excess Liability Insurance? ### Underlying Policies and Layer Form biBerk says its umbrella applies only to coverages included in an underlying policy; for example, auto claims are not added without commercial auto underneath. Berkshire Hathaway Specialty Insurance lists lead umbrella, follow-form excess and retained-limit forms. That distinction matters when a business has different underlying policies for auto, general liability or employer liability: confirm the schedule and attachment for each layer before comparing limits. [9](https://www.biberk.com/small-business-insurance/umbrella-insurance "Umbrella Insurance From biBerk | Get Coverage Today") [5](https://www.bhspecialty.com/wp-content/uploads/marketing/Casualty-Appetite-Guide-US.pdf "Casualty Appetite Guide - U.S.") ### Exclusions and Capacity biBerk lists intentional harm, damage to the insured’s own property, contractual liability and war as example exclusions and offers online or phone quoting when paired with existing liability coverage. Berkshire Hathaway Specialty Insurance names contractor and pollution features and $10 million excess capacity, with more for selected risks. Ask whether those features are in the proposed form and compare the exclusions against the underlying policies. [9](https://www.biberk.com/small-business-insurance/umbrella-insurance "Umbrella Insurance From biBerk | Get Coverage Today") [6](https://www.bhspecialty.com/us-products/us-casualty/ "Casualty") ## What Should You Confirm in Berkshire Hathaway Specialty Insurance and biBerk Umbrella and Excess Liability Insurance Quotes? - Which underlying lines will biBerk schedule, and do the quoted exclusions remove any contract-required protection? [9](https://www.biberk.com/small-business-insurance/umbrella-insurance "Umbrella Insurance From biBerk | Get Coverage Today") - Does Berkshire Hathaway Specialty Insurance’s quote include contractor or pollution wording, and what limit can attach above the scheduled policies? [5](https://www.bhspecialty.com/wp-content/uploads/marketing/Casualty-Appetite-Guide-US.pdf "Casualty Appetite Guide - U.S.") ## Berkshire Hathaway Specialty Insurance vs biBerk Umbrella and Excess Liability Compared | Criteria | Lead umbrella and excess casualty | biBerk Business Umbrella / Commercial Excess | | --- | --- | --- | | Who It’s For | BHSI lists manufacturers/distributors, real estate, grocery, financial institutions, construction, energy and trucking as umbrella/excess targets. [6](https://www.bhspecialty.com/us-products/us-casualty/ "Casualty") (Evidence: Company-reported; scope: BHSI US lead umbrella/excess casualty targets. Material limitation: Targets remain subject to restrictions and underwriting appetite..) | Confirm in your quote. | | Coverage Features | BHSI markets lead umbrella and excess casualty as an explicit product line and lists pollution/contractor-form features. [6](https://www.bhspecialty.com/us-products/us-casualty/ "Casualty") (Evidence: Company-reported; scope: US commercial casualty placements. Material limitation: Marketing overview; the manuscript and broker-specific forms require underwriting..) | biBerk says umbrella coverage can respond after a covered claim exceeds an applicable existing liability policy limit. [9](https://www.biberk.com/small-business-insurance/umbrella-insurance "Umbrella Insurance From biBerk | Get Coverage Today") (Evidence: Company-reported; scope: Entity: biBerk brand; underlying issuing company is policy/state-dependent unless stated. Product: small-business umbrella/excess. Jurisdiction: United States; availability varies by state unless stated. Limitation: Company-reported; exact issued policy wording and underwriting determine coverage..)

biBerk says the umbrella only applies to coverages included in the underlying policy; without commercial auto underneath, auto claims are not added. [9](https://www.biberk.com/small-business-insurance/umbrella-insurance "Umbrella Insurance From biBerk | Get Coverage Today") (Evidence: Company-reported; scope: Entity: biBerk brand; underlying issuing company is policy/state-dependent unless stated. Product: small-business umbrella/excess. Jurisdiction: United States; availability varies by state unless stated. Limitation: Company-reported; exact issued policy wording and underwriting determine coverage..)

biBerk lists intentional harm, damage to the insured’s own property, contractual liability and war as examples excluded from umbrella. [9](https://www.biberk.com/small-business-insurance/umbrella-insurance "Umbrella Insurance From biBerk | Get Coverage Today") (Evidence: Company-reported; scope: Entity: biBerk brand; underlying issuing company is policy/state-dependent unless stated. Product: small-business umbrella/excess. Jurisdiction: United States; availability varies by state unless stated. Limitation: Company-reported; exact issued policy wording and underwriting determine coverage..) | | Limits and Retentions | The appetite guide lists lead umbrella, follow-form excess and retained-limit forms, with $10 million excess capacity and more for selected risks. [5](https://www.bhspecialty.com/wp-content/uploads/marketing/Casualty-Appetite-Guide-US.pdf "Casualty Appetite Guide - U.S.") (Evidence: Company-reported; scope: Select risks in the guide’s US casualty appetite. Material limitation: Capacity is not a quote or universally available layer; “more” is risk-selective..) | Confirm in your quote. | | How to Apply | Confirm in your quote. | biBerk offers online or phone access to quote its umbrella, which must accompany an existing liability policy. [9](https://www.biberk.com/small-business-insurance/umbrella-insurance "Umbrella Insurance From biBerk | Get Coverage Today") (Evidence: Company-reported; scope: Entity: biBerk brand; underlying issuing company is policy/state-dependent unless stated. Product: small-business umbrella/excess. Jurisdiction: United States; availability varies by state unless stated. Limitation: Company-reported; exact issued policy wording and underwriting determine coverage..) | ## Related Pages for Berkshire Hathaway Specialty Insurance vs biBerk - [Berkshire Hathaway Specialty Insurance vs biBerk](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-biberk): all coverage lines, business roles, service and claims. - [What Is Umbrella and Excess Liability Insurance?](https://spot.insure/coverage/umbrella-excess): Umbrella or excess insurance can add liability limits above selected underlying policies when a covered claim exceeds them; compare the schedule and any gaps. - [Berkshire Hathaway Specialty Insurance vs biBerk Cyber Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-biberk/cyber) - [Berkshire Hathaway Specialty Insurance vs biBerk General Liability Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-biberk/general-liability) - [Berkshire Hathaway Specialty Insurance vs biBerk Professional Liability (E&O) Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-biberk/professional-errors-omissions) - [AIG vs Berkshire Hathaway Specialty Insurance Umbrella and Excess Liability Insurance](https://spot.insure/compare/aig-vs-berkshire-hathaway-specialty-insurance/umbrella-excess) - [AIG vs biBerk Umbrella and Excess Liability Insurance](https://spot.insure/compare/aig-vs-biberk/umbrella-excess) - [Alliance Risk vs Berkshire Hathaway Specialty Insurance Umbrella and Excess Liability Insurance](https://spot.insure/compare/alliance-risk-vs-berkshire-hathaway-specialty-insurance/umbrella-excess) - [Alliance Risk vs biBerk Umbrella and Excess Liability Insurance](https://spot.insure/compare/alliance-risk-vs-biberk/umbrella-excess) - [Amelia Risk vs Berkshire Hathaway Specialty Insurance Umbrella and Excess Liability Insurance](https://spot.insure/compare/amelia-risk-vs-berkshire-hathaway-specialty-insurance/umbrella-excess) - [Amelia Risk vs biBerk Umbrella and Excess Liability Insurance](https://spot.insure/compare/amelia-risk-vs-biberk/umbrella-excess) ## Sources for Berkshire Hathaway Specialty Insurance vs biBerk ### 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. [Casualty Appetite Guide - U.S.](https://www.bhspecialty.com/wp-content/uploads/marketing/Casualty-Appetite-Guide-US.pdf). Berkshire Hathaway Specialty Insurance; Casualty appetite PDF page 1: $50K minimum premium, GL/products/lead umbrella/excess lines, selected $10M excess capacity, placement forms and target/avoided classes; guide dated 2026-07-15. Accessed 2026-09-28. 6. [Casualty](https://www.bhspecialty.com/us-products/us-casualty/). Berkshire Hathaway Specialty Insurance; US casualty product lines and features: Primary General Liability lines 10-34; Primary Products/Completed Operations Liability 35-44; Lead Umbrella and Excess Casualty 46-63. Accessed 2026-09-28. ### Sources About biBerk 7. [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. 8. [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. 9. [Umbrella Insurance From biBerk | Get Coverage Today](https://www.biberk.com/small-business-insurance/umbrella-insurance). biBerk; Coverage trigger, underlying policies and exclusions. Accessed 2026-09-28. ### Sources for the Umbrella and Excess Liability Insurance Guide 10. [Liability Insurance](https://www.iii.org/publication/insuring-your-business-small-business-owners-guide-to-insurance/specific-coverages/liability-insurance). Insurance Information Institute; Heading Umbrella Liability Insurance; sentence Umbrella Liability—also known as Excess Liability Insurance; underlying policies listed with limits; typically GL, auto and employers’ liability; starts when a covered loss exhausts the primary per occurrence limit; Most umbrella policies exclude EPL, professional liability, product recall, workers compensation, asbestos, pollution, war and terrorism. Accessed 2026-09-16. 11. [Commercial Insurance Guide](https://www.insurance.ca.gov/01-consumers/105-type/95-guides/09-comm/commercialguide.cfm). California Department of Insurance; Commercial Umbrella; excess over a basic liability policy; auto/CGL/WC or any liability policy can be covered; may respond if basic policy not in force or for gaps; SIR when no underlying. Accessed 2026-09-16. 12. [Lines of Insurance](https://www.insurance.ca.gov/0200-industry/0050-renew-license/0200-requirements/casualty/lines-of-ins.cfm). California Department of Insurance; Umbrella or Excess Liability Policy: excess limits over existing liability; may provide additional coverages not provided by underlying policies. Accessed 2026-09-16. 13. [Coverage Hub](https://www.coverdash.com/coverage). Coverdash; Excess & Specialty: Umbrella; Excess Liability. Accessed 2026-09-16. 14. [Products](https://kinro.com/products). Kinro; 09 Umbrella/Excess: additional limits above scheduled underlying policies; when to review; reviewed with. 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). ## biBerk Review Scores for 2026 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). ## Agent and Developer Resources - [Markdown page](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-biberk/umbrella-excess.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)