---
title: "Berkshire Hathaway Specialty Insurance vs Liberty Mutual: Umbrella and Excess Liability Insurance"
description: "Berkshire Hathaway Specialty Insurance’s U.S. casualty appetite guide names lead, follow-form, and retained-limit structures with excess capacity for selected risks (U.S. casualty appetite guide; not an account quote); Liberty Mutual’s commercial catalogue lists umbrella and excess liability."
canonical: "https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-liberty-mutual/umbrella-excess"
page-type: "line-comparison"
updated-at: "2026-10-01"
comparison-pair: "berkshire-hathaway-specialty-insurance-vs-liberty-mutual"
provider-a: "berkshire-hathaway-specialty-insurance"
provider-b: "liberty-mutual"
coverage-line: "umbrella-excess"
---

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[Human-readable page](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-liberty-mutual/umbrella-excess)

## Agent Guide

**What this page is:** Focused comparison of Berkshire Hathaway Specialty Insurance and Liberty Mutual 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 Liberty Mutual. 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 Liberty Mutual for Umbrella and Excess Liability Insurance: how do they differ?
- Which is better for Umbrella and Excess Liability Insurance, Berkshire Hathaway Specialty Insurance or Liberty Mutual?
- What does Berkshire Hathaway Specialty Insurance or Liberty Mutual 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 Liberty Mutual?

**Key facts:**
- Line: Umbrella and Excess Liability Insurance. Providers: Berkshire Hathaway Specialty Insurance and Liberty Mutual.
- 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 Liberty Mutual](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-liberty-mutual) — 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)
- [Liberty Mutual profile](https://spot.insure/insurance-providers/liberty-mutual) — provider profile (evidence)
- [Berkshire Hathaway Specialty Insurance vs Liberty Mutual Builders Risk Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-liberty-mutual/builders-risk) — sibling comparison (other line, or other pair for this line)
- [Berkshire Hathaway Specialty Insurance vs Liberty Mutual Cargo and Transit Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-liberty-mutual/cargo-transit) — sibling comparison (other line, or other pair for this line)
- [Berkshire Hathaway Specialty Insurance vs Liberty Mutual Commercial Property Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-liberty-mutual/commercial-property) — sibling comparison (other line, or other pair for this line)
- [Berkshire Hathaway Specialty Insurance vs Liberty Mutual Crime Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-liberty-mutual/crime) — sibling comparison (other line, or other pair for this line)
- [Berkshire Hathaway Specialty Insurance vs Liberty Mutual Cyber Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-liberty-mutual/cyber) — sibling comparison (other line, or other pair for this line)
- [Berkshire Hathaway Specialty Insurance vs Liberty Mutual D&O Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-liberty-mutual/directors-officers) — sibling comparison (other line, or other pair for this line)
- [Berkshire Hathaway Specialty Insurance vs Liberty Mutual Employment Practices Liability Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-liberty-mutual/employment-practices) — sibling comparison (other line, or other pair for this line)
- [Berkshire Hathaway Specialty Insurance vs Liberty Mutual Fiduciary Liability Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-liberty-mutual/fiduciary) — sibling comparison (other line, or other pair for this line)
- [Berkshire Hathaway Specialty Insurance vs Liberty Mutual General Liability Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-liberty-mutual/general-liability) — sibling comparison (other line, or other pair for this line)
- [Berkshire Hathaway Specialty Insurance vs Liberty Mutual Inland Marine Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-liberty-mutual/inland-marine) — sibling comparison (other line, or other pair for this line)
- [Berkshire Hathaway Specialty Insurance vs Liberty Mutual Professional Liability (E&O) Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-liberty-mutual/professional-errors-omissions) — sibling comparison (other line, or other pair for this line)
- [Berkshire Hathaway Specialty Insurance vs Liberty Mutual Surety Bonds](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-liberty-mutual/surety-bonds) — sibling comparison (other line, or other pair for this line)
- [Berkshire Hathaway Specialty Insurance vs Liberty Mutual Tech E&O Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-liberty-mutual/technology-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 Liberty Mutual Umbrella and Excess Liability Insurance](https://spot.insure/compare/aig-vs-liberty-mutual/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 Liberty Mutual Umbrella and Excess Liability Insurance](https://spot.insure/compare/alliance-risk-vs-liberty-mutual/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 Liberty Mutual Umbrella and Excess Liability Insurance](https://spot.insure/compare/amelia-risk-vs-liberty-mutual/umbrella-excess) — sibling comparison (other line, or other pair for this line)

# Berkshire Hathaway Specialty Insurance vs Liberty Mutual: How Do They Compare for Umbrella and Excess Liability Insurance?

Berkshire Hathaway Specialty Insurance’s U.S. casualty appetite guide names lead, follow-form, and retained-limit structures with excess capacity for selected risks (U.S. casualty appetite guide; not an account quote); Liberty Mutual’s commercial catalogue lists umbrella and excess liability.

## How to Use the Berkshire Hathaway Specialty Insurance vs Liberty Mutual Umbrella and Excess Liability Insurance Comparison

Use this comparison to evaluate Berkshire Hathaway Specialty Insurance and Liberty Mutual 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 Liberty Mutual Umbrella and Excess Liability Insurance Summary

Berkshire Hathaway Specialty Insurance’s U.S. casualty appetite guide lists three umbrella/excess structures and $10 million excess capacity for selected risks (U.S. casualty appetite guide; not an account quote). Liberty Mutual lists umbrella and excess liability in its commercial catalogue and wholesale-industry coverage list; the listing describes product availability, not policy wording or an underwriting commitment. [5](https://www.bhspecialty.com/wp-content/uploads/marketing/Casualty-Appetite-Guide-US.pdf "Casualty Appetite Guide - U.S.") [8](https://business.libertymutual.com/commercial-solutions/ "Commercial Insurance Solutions") [9](https://business.libertymutual.com/industries/wholesale/ "Wholesale Distribution")

## 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 Liberty Mutual Business Insurance?

Liberty Mutual spans small-commercial, commercial, specialty, surety, and reinsurance businesses. The insurer and distribution route depend on the product, so check the offer and policy before you compare terms. [7](https://www.libertymutualgroup.com/about-lm/investor-relations/our-company/company-profile "Company Profile") [8](https://business.libertymutual.com/commercial-solutions/ "Commercial Insurance Solutions")

[Liberty Mutual profile](https://spot.insure/insurance-providers/liberty-mutual)

## 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 Liberty Mutual Umbrella and Excess Liability Insurance?

### Named Forms and Catalogue Listing

Berkshire Hathaway Specialty Insurance’s U.S. guide identifies lead umbrella, follow-form excess, and retained-limit forms, with capacity for selected risks. Liberty Mutual’s commercial catalogue and wholesale-industry list confirm umbrella and excess liability as listed lines. A buyer comparing the published descriptions has more form detail from the Berkshire Hathaway Specialty Insurance guide, while the Liberty Mutual catalogue confirms a product listing; neither is a quote for the buyer’s account. [5](https://www.bhspecialty.com/wp-content/uploads/marketing/Casualty-Appetite-Guide-US.pdf "Casualty Appetite Guide - U.S.") [8](https://business.libertymutual.com/commercial-solutions/ "Commercial Insurance Solutions") [9](https://business.libertymutual.com/industries/wholesale/ "Wholesale Distribution")

### Target Sectors and Wholesale Catalogue

Berkshire Hathaway Specialty Insurance names U.S. umbrella/excess target industries, subject to underwriting restrictions. Liberty Mutual’s wholesale catalogue includes umbrella/excess among its listed lines for an industry category. A buyer can use Berkshire Hathaway Specialty Insurance’s targets and Liberty Mutual’s industry listing to prepare a submission, then ask the placement contact which insured entity and terms apply to the actual risk. [6](https://www.bhspecialty.com/us-products/us-casualty/ "Casualty") [9](https://business.libertymutual.com/industries/wholesale/ "Wholesale Distribution")

## What Should You Confirm in Berkshire Hathaway Specialty Insurance and Liberty Mutual Umbrella and Excess Liability Insurance Quotes?

- Ask Berkshire Hathaway Specialty Insurance which listed form and target-sector restrictions apply to the risk. [5](https://www.bhspecialty.com/wp-content/uploads/marketing/Casualty-Appetite-Guide-US.pdf "Casualty Appetite Guide - U.S.") [6](https://www.bhspecialty.com/us-products/us-casualty/ "Casualty")
- Ask Liberty Mutual or its appointed placement contact which umbrella/excess offering and terms fit this industry. [8](https://business.libertymutual.com/commercial-solutions/ "Commercial Insurance Solutions")

## Berkshire Hathaway Specialty Insurance vs Liberty Mutual Umbrella and Excess Liability Compared

| Criteria | Lead umbrella and excess casualty | Umbrella and Excess Liability |
| --- | --- | --- |
| Role in This Line | Confirm in your quote. | Liberty Mutual lists umbrella and excess liability in its commercial catalogue and in a wholesale-industry coverage list. [8](https://business.libertymutual.com/commercial-solutions/ "Commercial Insurance Solutions") [9](https://business.libertymutual.com/industries/wholesale/ "Wholesale Distribution") (Evidence: Company-reported; scope: Official Liberty Mutual commercial/product page; company-reported description scoped to Umbrella and Excess Liability. Not policy wording, underwriting approval, state eligibility or a coverage guarantee..) |
| 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..) | The commercial business pages distribute products through brokers and agents. [8](https://business.libertymutual.com/commercial-solutions/ "Commercial Insurance Solutions") [9](https://business.libertymutual.com/industries/wholesale/ "Wholesale Distribution") (Evidence: Company-reported; scope: Official Liberty Mutual commercial/product page; company-reported description scoped to Umbrella and Excess Liability. Not policy wording, underwriting approval, state eligibility or a coverage guarantee..) |
| 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..) | Its wholesale page names umbrella/excess cover as an option for that industry; limits and attachment terms are not established here. [8](https://business.libertymutual.com/commercial-solutions/ "Commercial Insurance Solutions") [9](https://business.libertymutual.com/industries/wholesale/ "Wholesale Distribution") (Evidence: Company-reported; scope: Official Liberty Mutual commercial/product page; company-reported description scoped to Umbrella and Excess Liability. Not policy wording, underwriting approval, state eligibility or a coverage guarantee..) |
| 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. | The cited product page does not establish an online application or policy-binding path; ask the listed team or your broker/agent how this product is placed. [8](https://business.libertymutual.com/commercial-solutions/ "Commercial Insurance Solutions") [9](https://business.libertymutual.com/industries/wholesale/ "Wholesale Distribution") (Evidence: Not found in reviewed sources; scope: Reviewed product-page scope only. This not-found disposition is not a claim that no digital route exists..) |

## Related Pages for Berkshire Hathaway Specialty Insurance vs Liberty Mutual

- [Berkshire Hathaway Specialty Insurance vs Liberty Mutual](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-liberty-mutual): 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 Liberty Mutual Builders Risk Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-liberty-mutual/builders-risk)
- [Berkshire Hathaway Specialty Insurance vs Liberty Mutual Cargo and Transit Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-liberty-mutual/cargo-transit)
- [Berkshire Hathaway Specialty Insurance vs Liberty Mutual Commercial Property Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-liberty-mutual/commercial-property)
- [Berkshire Hathaway Specialty Insurance vs Liberty Mutual Crime Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-liberty-mutual/crime)
- [Berkshire Hathaway Specialty Insurance vs Liberty Mutual Cyber Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-liberty-mutual/cyber)
- [Berkshire Hathaway Specialty Insurance vs Liberty Mutual D&O Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-liberty-mutual/directors-officers)
- [Berkshire Hathaway Specialty Insurance vs Liberty Mutual Employment Practices Liability Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-liberty-mutual/employment-practices)
- [Berkshire Hathaway Specialty Insurance vs Liberty Mutual Fiduciary Liability Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-liberty-mutual/fiduciary)
- [Berkshire Hathaway Specialty Insurance vs Liberty Mutual General Liability Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-liberty-mutual/general-liability)
- [Berkshire Hathaway Specialty Insurance vs Liberty Mutual Inland Marine Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-liberty-mutual/inland-marine)
- [Berkshire Hathaway Specialty Insurance vs Liberty Mutual Professional Liability (E&O) Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-liberty-mutual/professional-errors-omissions)
- [Berkshire Hathaway Specialty Insurance vs Liberty Mutual Surety Bonds](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-liberty-mutual/surety-bonds)
- [Berkshire Hathaway Specialty Insurance vs Liberty Mutual Tech E&O Insurance](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-liberty-mutual/technology-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 Liberty Mutual Umbrella and Excess Liability Insurance](https://spot.insure/compare/aig-vs-liberty-mutual/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 Liberty Mutual Umbrella and Excess Liability Insurance](https://spot.insure/compare/alliance-risk-vs-liberty-mutual/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 Liberty Mutual Umbrella and Excess Liability Insurance](https://spot.insure/compare/amelia-risk-vs-liberty-mutual/umbrella-excess)

## Sources for Berkshire Hathaway Specialty Insurance vs Liberty Mutual

### 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 Liberty Mutual

7. [Company Profile](https://www.libertymutualgroup.com/about-lm/investor-relations/our-company/company-profile). Liberty Mutual Group; Strategic business units paragraph: US Retail Markets (individuals/small businesses; small commercial; countrywide) and Global Risk Solutions (mid-size/large businesses; commercial, specialty, reinsurance, surety; worldwide).. Accessed 2026-09-29.
8. [Commercial Insurance Solutions](https://business.libertymutual.com/commercial-solutions/). Liberty Mutual Business Insurance; Commercial solutions index names commercial auto and fleet, cyber, environmental liability, equipment breakdown, excess and surplus, general liability, healthcare liability, inland marine, management liability, multinational, ocean marine, professional liability, property, reinsurance, surety, umbrella/excess and workers compensation. Disclosure says policy insurer is named when offered, may be an affiliate/subsidiary or surplus-lines insurer; states/jurisdictions and actual policy terms vary.. Accessed 2026-09-29.
9. [Wholesale Distribution](https://business.libertymutual.com/industries/wholesale/). Liberty Mutual Business Insurance; Wholesale coverage options list includes cargo stock throughput, commercial auto, cyber, D&O, environmental, general liability, inland marine, management liability, property (including equipment breakdown), trade credit, umbrella/excess and workers compensation. Industry-specific examples, not universal eligibility.. Accessed 2026-09-29.

### 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).

## Liberty Mutual Review Scores for 2026

Review Score: 7.2 / 10 from 2 rated sources, equally weighted.

Customers give Liberty Mutual 4.2 out of 5 on Trustpilot from 3,836 reviews, but that page mixes auto, home and life customers with business ones. For business insurance specifically, NerdWallet gives 3.0 out of 5 and reports more complaints than expected.

- NerdWallet: NerdWallet editorial rating 3.0/5 (NerdWallet proprietary editorial score; not a consumer rating average or Spot Score). NerdWallet business-insurance editorial review, updated June 3, 2026. Its 3.0/5 is NerdWallet’s editorial score, not a consumer average or Spot Rating. It reports above-expected commercial-property and general-liability complaints for 2022–2024 and a low J.D. Power result. Period: Page updated June 3, 2026. Checked 2026-09-29. [Liberty Mutual Business Insurance Review 2026: Big Company Dogged by Customer Complaints](https://www.nerdwallet.com/business/insurance/learn/liberty-mutual-business-insurance)
- Trustpilot: Trustpilot consumer TrustScore 4.2/5 (Platform aggregate for a mixed Liberty Mutual brand profile; not business-only); 3836 reviews. Company-wide Liberty Mutual Trustpilot profile. Its description highlights auto, home and life insurance; review excerpts are not restricted to commercial buyers or one issuing entity. The displayed score/count are a consumer-review-site aggregate, separate from editorial ratings and survey data. Period: Displayed September 29, 2026; live total changes. Checked 2026-09-29. [Liberty Mutual Reviews](https://www.trustpilot.com/review/www.libertymutual.com)

Reviewed 2026-09-29. [Read the sourced review](https://spot.insure/insurance-providers/liberty-mutual/reviews).

## Agent and Developer Resources

- [Markdown page](https://spot.insure/compare/berkshire-hathaway-specialty-insurance-vs-liberty-mutual/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)