--- title: "AIG vs Berkshire Hathaway Specialty Insurance: Umbrella and Excess Liability Insurance" description: "BHSI publishes a $10 million excess capacity guide and names target industries; AIG advertises up to $75 million per account subject to underwriting." canonical: "https://spot.insure/compare/aig-vs-berkshire-hathaway-specialty-insurance/umbrella-excess" page-type: "line-comparison" updated-at: "2026-09-30" comparison-pair: "aig-vs-berkshire-hathaway-specialty-insurance" provider-a: "aig" provider-b: "berkshire-hathaway-specialty-insurance" 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/aig-vs-berkshire-hathaway-specialty-insurance/umbrella-excess) ## Agent Guide **What this page is:** Focused comparison of AIG and Berkshire Hathaway Specialty Insurance 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 AIG versus Berkshire Hathaway Specialty Insurance. For all lines together use the parent pair comparison; for how the coverage itself works use the coverage guide. **Questions this page answers:** - AIG vs Berkshire Hathaway Specialty Insurance for Umbrella and Excess Liability Insurance: how do they differ? - Which is better for Umbrella and Excess Liability Insurance, AIG or Berkshire Hathaway Specialty Insurance? - What does AIG or Berkshire Hathaway Specialty Insurance 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 AIG or Berkshire Hathaway Specialty Insurance? **Key facts:** - Line: Umbrella and Excess Liability Insurance. Providers: AIG and Berkshire Hathaway Specialty Insurance. - 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 2026-09-30. Editorial policy: /editorial-policy. **Related pages:** - [AIG vs Berkshire Hathaway Specialty Insurance](https://spot.insure/compare/aig-vs-berkshire-hathaway-specialty-insurance) — parent: all coverage lines for this pair - [Umbrella and Excess Liability Insurance guide](https://spot.insure/coverage/umbrella-excess) — coverage explainer for this line - [AIG profile](https://spot.insure/insurance-providers/aig) — provider profile (evidence) - [Berkshire Hathaway Specialty Insurance profile](https://spot.insure/insurance-providers/berkshire-hathaway-specialty-insurance) — provider profile (evidence) - [AIG vs Berkshire Hathaway Specialty Insurance Builders Risk Insurance](https://spot.insure/compare/aig-vs-berkshire-hathaway-specialty-insurance/builders-risk) — sibling comparison (other line, or other pair for this line) - [AIG vs Berkshire Hathaway Specialty Insurance Cargo and Transit Insurance](https://spot.insure/compare/aig-vs-berkshire-hathaway-specialty-insurance/cargo-transit) — sibling comparison (other line, or other pair for this line) - [AIG vs Berkshire Hathaway Specialty Insurance Commercial Property Insurance](https://spot.insure/compare/aig-vs-berkshire-hathaway-specialty-insurance/commercial-property) — sibling comparison (other line, or other pair for this line) - [AIG vs Berkshire Hathaway Specialty Insurance Crime Insurance](https://spot.insure/compare/aig-vs-berkshire-hathaway-specialty-insurance/crime) — sibling comparison (other line, or other pair for this line) - [AIG vs Berkshire Hathaway Specialty Insurance Cyber Insurance](https://spot.insure/compare/aig-vs-berkshire-hathaway-specialty-insurance/cyber) — sibling comparison (other line, or other pair for this line) - [AIG vs Berkshire Hathaway Specialty Insurance D&O Insurance](https://spot.insure/compare/aig-vs-berkshire-hathaway-specialty-insurance/directors-officers) — sibling comparison (other line, or other pair for this line) - [AIG vs Berkshire Hathaway Specialty Insurance Employment Practices Liability Insurance](https://spot.insure/compare/aig-vs-berkshire-hathaway-specialty-insurance/employment-practices) — sibling comparison (other line, or other pair for this line) - [AIG vs Berkshire Hathaway Specialty Insurance Fiduciary Liability Insurance](https://spot.insure/compare/aig-vs-berkshire-hathaway-specialty-insurance/fiduciary) — sibling comparison (other line, or other pair for this line) - [AIG vs Berkshire Hathaway Specialty Insurance General Liability Insurance](https://spot.insure/compare/aig-vs-berkshire-hathaway-specialty-insurance/general-liability) — sibling comparison (other line, or other pair for this line) - [AIG vs Berkshire Hathaway Specialty Insurance Inland Marine Insurance](https://spot.insure/compare/aig-vs-berkshire-hathaway-specialty-insurance/inland-marine) — sibling comparison (other line, or other pair for this line) - [AIG vs Berkshire Hathaway Specialty Insurance Media Liability Insurance](https://spot.insure/compare/aig-vs-berkshire-hathaway-specialty-insurance/media) — sibling comparison (other line, or other pair for this line) - [AIG vs Berkshire Hathaway Specialty Insurance Product Liability Insurance](https://spot.insure/compare/aig-vs-berkshire-hathaway-specialty-insurance/product-liability) — 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 Berkshire Hathaway Specialty Insurance Representations and Warranties Insurance](https://spot.insure/compare/aig-vs-berkshire-hathaway-specialty-insurance/representations-warranties) — sibling comparison (other line, or other pair for this line) - [AIG vs Berkshire Hathaway Specialty Insurance Tech E&O Insurance](https://spot.insure/compare/aig-vs-berkshire-hathaway-specialty-insurance/technology-errors-omissions) — sibling comparison (other line, or other pair for this line) - [AIG vs Alliance Risk Umbrella and Excess Liability Insurance](https://spot.insure/compare/aig-vs-alliance-risk/umbrella-excess) — sibling comparison (other line, or other pair for this line) - [AIG vs Amelia Risk Umbrella and Excess Liability Insurance](https://spot.insure/compare/aig-vs-amelia-risk/umbrella-excess) — sibling comparison (other line, or other pair for this line) - [AIG vs Aon Umbrella and Excess Liability Insurance](https://spot.insure/compare/aig-vs-aon/umbrella-excess) — sibling comparison (other line, or other pair for this line) - [AIG vs The Baldwin Group Umbrella and Excess Liability Insurance](https://spot.insure/compare/aig-vs-baldwin/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) # AIG vs Berkshire Hathaway Specialty Insurance: How Do They Compare for Umbrella and Excess Liability Insurance? BHSI publishes a $10 million excess capacity guide and names target industries; AIG advertises up to $75 million per account subject to underwriting. ## How to Use the AIG vs Berkshire Hathaway Specialty Insurance Umbrella and Excess Liability Insurance Comparison Use this comparison to evaluate AIG and Berkshire Hathaway Specialty Insurance 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. ## AIG vs Berkshire Hathaway Specialty Insurance Umbrella and Excess Liability Insurance Summary BHSI lists lead umbrella, follow-form excess, and retained-limit forms; AIG describes admitted and non-admitted lead and excess positions. [3](https://www.aig.com/home/risk-solutions/business/casualty/excess-casualty "Excess Casualty Insurance") [9](https://www.bhspecialty.com/us-products/us-casualty/ "Casualty") ## What Is AIG? AIG is the marketing name for American International Group, Inc.; AIG says its insurance products are written or provided by subsidiaries or affiliates. Its U.S. business pages list commercial casualty, property, cyber, management and professional liability, and specialty programs, but a brand-level page does not identify the insurer for a particular policy. [1](https://www.aig.com/investor-relations "Investor Relations") [2](https://www.aig.com/home/risk-solutions/business "Business") [AIG profile](https://spot.insure/insurance-providers/aig) ## 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. [4](https://www.bhspecialty.com/wp-content/uploads/marketing/Interactive-AAG.pdf "At A Glance") [5](https://www.bhspecialty.com/about-us/ "About Us") [6](https://www.bhspecialty.com/terms-conditions/ "Terms of Service") [7](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 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 AIG and Berkshire Hathaway Specialty Insurance Umbrella and Excess Liability Insurance? ### Structure and attachment BHSI lists manufacturers, real estate, grocery, financial institutions, construction, energy, and trucking among its target classes, and its appetite guide shows $10 million excess capacity with more for selected risks. AIG advertises up to $75 million on an individual account, subject to underwriting. These published figures are not equivalent quotes; compare the eligible class, attachment point, and capacity available for this specific tower. [3](https://www.aig.com/home/risk-solutions/business/casualty/excess-casualty "Excess Casualty Insurance") [8](https://www.bhspecialty.com/wp-content/uploads/marketing/Casualty-Appetite-Guide-US.pdf "Casualty Appetite Guide - U.S.") ### Capacity and account support BHSI lists lead umbrella, follow-form excess, and retained-limit forms. AIG markets lead umbrella, mid-excess, and high-excess positions, including admitted and non-admitted options. Buyers should ask each underwriter how its form follows the underlying liability policies and whether the proposed layer is lead or excess. [3](https://www.aig.com/home/risk-solutions/business/casualty/excess-casualty "Excess Casualty Insurance") [8](https://www.bhspecialty.com/wp-content/uploads/marketing/Casualty-Appetite-Guide-US.pdf "Casualty Appetite Guide - U.S.") ## What Should You Confirm in AIG and Berkshire Hathaway Specialty Insurance Umbrella and Excess Liability Insurance Quotes? - Ask AIG which position, attachment point, and legal insurer apply to the proposed tower. [3](https://www.aig.com/home/risk-solutions/business/casualty/excess-casualty "Excess Casualty Insurance") - Ask Lead umbrella to identify underlying policies, limits, and follow-form terms. [8](https://www.bhspecialty.com/wp-content/uploads/marketing/Casualty-Appetite-Guide-US.pdf "Casualty Appetite Guide - U.S.") ## AIG vs Berkshire Hathaway Specialty Insurance Umbrella and Excess Liability Compared | Criteria | AIG Excess Casualty and Lead Umbrella | Lead umbrella and excess casualty | | --- | --- | --- | | Role in This Line | AIG markets admitted and non-admitted excess casualty capacity, including lead umbrella, mid-excess and high-excess positions. The legal insurer and structure for a specific tower are account-specific. [3](https://www.aig.com/home/risk-solutions/business/casualty/excess-casualty "Excess Casualty Insurance") (Evidence: Company-reported; scope: Role in this product is limited to the description on the linked AIG source..) | Confirm in your quote. | | Who It’s For | AIG describes lead umbrella, mid-excess and high-excess placements for a wide range of accounts, including small-business and corporate risks. It does not state an account-specific appetite or attachment eligibility. [3](https://www.aig.com/home/risk-solutions/business/casualty/excess-casualty "Excess Casualty Insurance") (Evidence: Company-reported; scope: Audience is the segment AIG names on the linked source; this is not an underwriting decision, quote or guarantee of availability..) | BHSI lists manufacturers/distributors, real estate, grocery, financial institutions, construction, energy and trucking as umbrella/excess targets. [9](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..) | | Coverage Features | AIG describes excess liability protection against severe liabilities and lead umbrella placements that may integrate with other casualty lines. The exact underlying policies, attachment points and follow-form terms depend on the placement. [3](https://www.aig.com/home/risk-solutions/business/casualty/excess-casualty "Excess Casualty Insurance") (Evidence: Company-reported; scope: AIG’s public product description is not the policy. Actual entitlement depends on the applicable issued form, endorsements and declarations..) | BHSI markets lead umbrella and excess casualty as an explicit product line and lists pollution/contractor-form features. [9](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..) | | Limits and Retentions | AIG advertises up to $75 million total capacity on an individual-account basis, subject to underwriting. This is not a standard or guaranteed limit for a buyer. [3](https://www.aig.com/home/risk-solutions/business/casualty/excess-casualty "Excess Casualty Insurance") (Evidence: Not publicly disclosed; scope: This statement reports only what the linked public source discloses and does not substitute for a quote or issued policy..) | The appetite guide lists lead umbrella, follow-form excess and retained-limit forms, with $10 million excess capacity and more for selected risks. [8](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..) | | Risk Services | AIG describes in-house risk experts, claims specialists, litigation-management strategies and integration with domestic and foreign casualty platforms. Those services do not change policy wording. [3](https://www.aig.com/home/risk-solutions/business/casualty/excess-casualty "Excess Casualty Insurance") (Evidence: Company-reported; scope: The linked page describes company-reported support; specific account services and third-party arrangements must be confirmed..) | Confirm in your quote. | ## Related Pages for AIG vs Berkshire Hathaway Specialty Insurance - [AIG vs Berkshire Hathaway Specialty Insurance](https://spot.insure/compare/aig-vs-berkshire-hathaway-specialty-insurance): 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. - [AIG vs Berkshire Hathaway Specialty Insurance Builders Risk Insurance](https://spot.insure/compare/aig-vs-berkshire-hathaway-specialty-insurance/builders-risk) - [AIG vs Berkshire Hathaway Specialty Insurance Cargo and Transit Insurance](https://spot.insure/compare/aig-vs-berkshire-hathaway-specialty-insurance/cargo-transit) - [AIG vs Berkshire Hathaway Specialty Insurance Commercial Property Insurance](https://spot.insure/compare/aig-vs-berkshire-hathaway-specialty-insurance/commercial-property) - [AIG vs Berkshire Hathaway Specialty Insurance Crime Insurance](https://spot.insure/compare/aig-vs-berkshire-hathaway-specialty-insurance/crime) - [AIG vs Berkshire Hathaway Specialty Insurance Cyber Insurance](https://spot.insure/compare/aig-vs-berkshire-hathaway-specialty-insurance/cyber) - [AIG vs Berkshire Hathaway Specialty Insurance D&O Insurance](https://spot.insure/compare/aig-vs-berkshire-hathaway-specialty-insurance/directors-officers) - [AIG vs Berkshire Hathaway Specialty Insurance Employment Practices Liability Insurance](https://spot.insure/compare/aig-vs-berkshire-hathaway-specialty-insurance/employment-practices) - [AIG vs Berkshire Hathaway Specialty Insurance Fiduciary Liability Insurance](https://spot.insure/compare/aig-vs-berkshire-hathaway-specialty-insurance/fiduciary) - [AIG vs Berkshire Hathaway Specialty Insurance General Liability Insurance](https://spot.insure/compare/aig-vs-berkshire-hathaway-specialty-insurance/general-liability) - [AIG vs Berkshire Hathaway Specialty Insurance Inland Marine Insurance](https://spot.insure/compare/aig-vs-berkshire-hathaway-specialty-insurance/inland-marine) - [AIG vs Berkshire Hathaway Specialty Insurance Media Liability Insurance](https://spot.insure/compare/aig-vs-berkshire-hathaway-specialty-insurance/media) - [AIG vs Berkshire Hathaway Specialty Insurance Product Liability Insurance](https://spot.insure/compare/aig-vs-berkshire-hathaway-specialty-insurance/product-liability) - [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 Berkshire Hathaway Specialty Insurance Representations and Warranties Insurance](https://spot.insure/compare/aig-vs-berkshire-hathaway-specialty-insurance/representations-warranties) - [AIG vs Berkshire Hathaway Specialty Insurance Tech E&O Insurance](https://spot.insure/compare/aig-vs-berkshire-hathaway-specialty-insurance/technology-errors-omissions) - [AIG vs Alliance Risk Umbrella and Excess Liability Insurance](https://spot.insure/compare/aig-vs-alliance-risk/umbrella-excess) - [AIG vs Amelia Risk Umbrella and Excess Liability Insurance](https://spot.insure/compare/aig-vs-amelia-risk/umbrella-excess) - [AIG vs Aon Umbrella and Excess Liability Insurance](https://spot.insure/compare/aig-vs-aon/umbrella-excess) - [AIG vs The Baldwin Group Umbrella and Excess Liability Insurance](https://spot.insure/compare/aig-vs-baldwin/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) ## Sources for AIG vs Berkshire Hathaway Specialty Insurance ### Sources About AIG 1. [Investor Relations](https://www.aig.com/investor-relations). American International Group, Inc. (AIG); About AIG and legal footer; lines 244–246 and 327–331. Accessed 2026-09-28. 2. [Business](https://www.aig.com/home/risk-solutions/business). AIG US; Surplus Lines heading and paragraph, lines 357–359. Accessed 2026-09-28. 3. [Excess Casualty Insurance](https://www.aig.com/home/risk-solutions/business/casualty/excess-casualty). AIG; Official AIG Excess Casualty page: admitted/non-admitted options, lead umbrella/mid/high excess placements, advertised per-account capacity subject to underwriting, domestic/foreign integration, risk and claims services.. Accessed 2026-09-30. ### Sources About Berkshire Hathaway Specialty Insurance 4. [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. 5. [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. 6. [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. 7. [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. 8. [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. 9. [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 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 2026-09-30. 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. ## AIG Review Scores for 2026 Review Score: 4.4 / 10 from 2 rated sources, equally weighted. Customer ratings for AIG are low: Trustpilot shows 1.9 out of 5 from 252 reviews, and NerdWallet gives 2.5 stars and notes more claims complaints than expected. These pages cover many AIG products and countries, so they only loosely describe business insurance. - NerdWallet: NerdWallet editorial rating 2.5 (stars). NerdWallet’s editorial business-insurance comparison; the AIG entry concerns commercial liability and property insurance, not a quantified policyholder-review sample. The page’s complaint statement and 2.5-star editorial rating are source-specific and must not be recast as a consumer average. Checked 2026-09-29. [Business Insurance: Get Quotes and Coverage Today](https://www.nerdwallet.com/business/insurance/best) - Trustpilot: Trustpilot TrustScore 1.9 (out of 5); 252 reviews. Consumer reviews on aig.com’s Trustpilot profile span products and countries, including personal, travel, device/service and other experiences; they do not isolate U.S. commercial-P&C policyholders or a single issuing insurer. Checked 2026-09-29. [AIG Reviews](https://www.trustpilot.com/review/aig.com) - ConsumerAffairs: ConsumerAffairs average 1.0 (out of 5); 274 reviews. ConsumerAffairs page titled AIG Life Insurance Reviews, updated 2026-08-14. The page mixes life and high-net-worth home references and reviewers may describe other AIG relationships; it is not a commercial-P&C-only population. Checked 2026-09-29. [AIG Life Insurance Reviews](https://www.consumeraffairs.com/insurance/aig_life.html) - BBB: Complaints shown, prior 3 years 270. BBB’s American International Group, Inc. headquarters profile and corporate-owned locations (86 listed locations); complaint data is not limited to commercial insurance or a particular risk-bearing insurer. BBB says displayed complaint text may not represent every complaint. Period: Three years ending as displayed 2026-09-29. Checked 2026-09-29. [American International Group, Inc. (AIG) BBB Complaints](https://www.bbb.org/us/ny/new-york/profile/insurance-companies/american-international-group-inc-aig-0121-1515/complaints) Reviewed 2026-09-29. [Read the sourced review](https://spot.insure/insurance-providers/aig/reviews). ## 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). ## Agent and Developer Resources - [Markdown page](https://spot.insure/compare/aig-vs-berkshire-hathaway-specialty-insurance/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)