---
title: "CNA vs Liberty Mutual: Umbrella and Excess Liability Insurance"
description: "CNA names four umbrella enhancements; Liberty Mutual lists umbrella/excess in its commercial and wholesale catalogues."
canonical: "https://spot.insure/compare/cna-vs-liberty-mutual/umbrella-excess"
page-type: "line-comparison"
updated-at: "2026-10-01"
comparison-pair: "cna-vs-liberty-mutual"
provider-a: "cna"
provider-b: "liberty-mutual"
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/cna-vs-liberty-mutual/umbrella-excess)

## Agent Guide

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

**Key facts:**
- Line: Umbrella and Excess Liability Insurance. Providers: CNA 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:**
- [CNA vs Liberty Mutual](https://spot.insure/compare/cna-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
- [CNA profile](https://spot.insure/insurance-providers/cna) — provider profile (evidence)
- [Liberty Mutual profile](https://spot.insure/insurance-providers/liberty-mutual) — provider profile (evidence)
- [CNA vs Liberty Mutual Builders Risk Insurance](https://spot.insure/compare/cna-vs-liberty-mutual/builders-risk) — sibling comparison (other line, or other pair for this line)
- [CNA vs Liberty Mutual Business Owner’s Policy](https://spot.insure/compare/cna-vs-liberty-mutual/business-owners-policy) — sibling comparison (other line, or other pair for this line)
- [CNA vs Liberty Mutual Cargo and Transit Insurance](https://spot.insure/compare/cna-vs-liberty-mutual/cargo-transit) — sibling comparison (other line, or other pair for this line)
- [CNA vs Liberty Mutual Commercial Auto Insurance](https://spot.insure/compare/cna-vs-liberty-mutual/commercial-auto) — sibling comparison (other line, or other pair for this line)
- [CNA vs Liberty Mutual Commercial Property Insurance](https://spot.insure/compare/cna-vs-liberty-mutual/commercial-property) — sibling comparison (other line, or other pair for this line)
- [CNA vs Liberty Mutual Crime Insurance](https://spot.insure/compare/cna-vs-liberty-mutual/crime) — sibling comparison (other line, or other pair for this line)
- [CNA vs Liberty Mutual Cyber Insurance](https://spot.insure/compare/cna-vs-liberty-mutual/cyber) — sibling comparison (other line, or other pair for this line)
- [CNA vs Liberty Mutual D&O Insurance](https://spot.insure/compare/cna-vs-liberty-mutual/directors-officers) — sibling comparison (other line, or other pair for this line)
- [CNA vs Liberty Mutual Employment Practices Liability Insurance](https://spot.insure/compare/cna-vs-liberty-mutual/employment-practices) — sibling comparison (other line, or other pair for this line)
- [CNA vs Liberty Mutual Equipment Breakdown Insurance](https://spot.insure/compare/cna-vs-liberty-mutual/equipment-breakdown) — sibling comparison (other line, or other pair for this line)
- [CNA vs Liberty Mutual Fidelity Bonds](https://spot.insure/compare/cna-vs-liberty-mutual/fidelity-bonds) — sibling comparison (other line, or other pair for this line)
- [CNA vs Liberty Mutual Fiduciary Liability Insurance](https://spot.insure/compare/cna-vs-liberty-mutual/fiduciary) — sibling comparison (other line, or other pair for this line)
- [CNA vs Liberty Mutual General Liability Insurance](https://spot.insure/compare/cna-vs-liberty-mutual/general-liability) — sibling comparison (other line, or other pair for this line)
- [CNA vs Liberty Mutual Inland Marine Insurance](https://spot.insure/compare/cna-vs-liberty-mutual/inland-marine) — sibling comparison (other line, or other pair for this line)
- [CNA vs Liberty Mutual Kidnap and Ransom Insurance](https://spot.insure/compare/cna-vs-liberty-mutual/kidnap-ransom) — sibling comparison (other line, or other pair for this line)
- [CNA vs Liberty Mutual Management Liability Insurance](https://spot.insure/compare/cna-vs-liberty-mutual/management-liability) — sibling comparison (other line, or other pair for this line)
- [CNA vs Liberty Mutual Medical Malpractice Insurance](https://spot.insure/compare/cna-vs-liberty-mutual/medical-malpractice) — sibling comparison (other line, or other pair for this line)
- [CNA vs Liberty Mutual Professional Liability (E&O) Insurance](https://spot.insure/compare/cna-vs-liberty-mutual/professional-errors-omissions) — sibling comparison (other line, or other pair for this line)
- [CNA vs Liberty Mutual Surety Bonds](https://spot.insure/compare/cna-vs-liberty-mutual/surety-bonds) — sibling comparison (other line, or other pair for this line)
- [CNA vs Liberty Mutual Tech E&O Insurance](https://spot.insure/compare/cna-vs-liberty-mutual/technology-errors-omissions) — sibling comparison (other line, or other pair for this line)
- [CNA vs Liberty Mutual Workers’ Compensation Insurance](https://spot.insure/compare/cna-vs-liberty-mutual/workers-compensation) — sibling comparison (other line, or other pair for this line)
- [AIG vs CNA Umbrella and Excess Liability Insurance](https://spot.insure/compare/aig-vs-cna/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 CNA Umbrella and Excess Liability Insurance](https://spot.insure/compare/alliance-risk-vs-cna/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 CNA Umbrella and Excess Liability Insurance](https://spot.insure/compare/amelia-risk-vs-cna/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)

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

CNA names four umbrella enhancements; Liberty Mutual lists umbrella/excess in its commercial and wholesale catalogues.

## How to Use the CNA vs Liberty Mutual Umbrella and Excess Liability Insurance Comparison

Use this comparison to evaluate CNA 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.

## CNA vs Liberty Mutual Umbrella and Excess Liability Insurance Summary

CNA lists four built-in umbrella features. Liberty Mutual lists umbrella and excess liability in its commercial catalogue and wholesale coverage list. [4](https://www.cna.com/products/umbrella "Umbrella Insurance and Excess Liability Insurance | CNA Insurance") [6](https://business.libertymutual.com/commercial-solutions/ "Commercial Insurance Solutions") [7](https://business.libertymutual.com/industries/wholesale/ "Wholesale Distribution")

## CNA Small Business Insurance: Products, Agents and Service

CNA directs small-business buyers to independent agents and describes CNA Connect as a businessowners policy for more than 600 small-business classes. Issuer and availability vary by policy and state, so confirm both in a quote. [1](https://www.cna.com/solutions/small-business "Insurance for Small Businesses") [2](https://www.cna.com/products/cna-connect "CNA Connect Small Businessowners Policy (BOP) | CNA Insurance") [3](https://www.cna.com/cnadisclaimer/generaldisclaimer "General Disclaimer")

[CNA profile](https://spot.insure/insurance-providers/cna)

## 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. [5](https://www.libertymutualgroup.com/about-lm/investor-relations/our-company/company-profile "Company Profile") [6](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. [8](https://www.iii.org/publication/insuring-your-business-small-business-owners-guide-to-insurance/specific-coverages/liability-insurance "Liability Insurance") [9](https://www.insurance.ca.gov/01-consumers/105-type/95-guides/09-comm/commercialguide.cfm "Commercial Insurance Guide") [10](https://www.insurance.ca.gov/0200-industry/0050-renew-license/0200-requirements/casualty/lines-of-ins.cfm "Lines of Insurance") [11](https://www.coverdash.com/coverage "Coverage Hub") [12](https://kinro.com/products "Products")

## What Are the Key Differences Between CNA and Liberty Mutual Umbrella and Excess Liability Insurance?

### Published Form Features Versus Catalogue Listing

CNA describes its umbrella forms as aligned with most underlying terms and names four enhancements: key-employee replacement, crisis management, waiver of subrogation and most-favorable venue. Liberty Mutual’s reviewed materials establish that umbrella/excess is listed in its commercial and wholesale catalogues and distributed through agents or brokers, but do not establish limits or attachment terms. That leaves a buyer with feature wording to investigate at CNA and product availability and structure to clarify with Liberty Mutual. [4](https://www.cna.com/products/umbrella "Umbrella Insurance and Excess Liability Insurance | CNA Insurance") [6](https://business.libertymutual.com/commercial-solutions/ "Commercial Insurance Solutions") [7](https://business.libertymutual.com/industries/wholesale/ "Wholesale Distribution")

### Information to Obtain Before Comparing

CNA’s list gives specific topics for reviewing the form; Liberty Mutual’s catalogue references do not tell a buyer which underlying policies, limits or eligibility rules apply to a particular account. Do not treat the catalogue entry as a quote. Ask its broker or agent for a proposal and specimen wording, then compare both carriers’ attachment and exclusion language on the same primary schedule. [6](https://business.libertymutual.com/commercial-solutions/ "Commercial Insurance Solutions") [4](https://www.cna.com/products/umbrella "Umbrella Insurance and Excess Liability Insurance | CNA Insurance")

## What Should You Confirm in CNA and Liberty Mutual Umbrella and Excess Liability Insurance Quotes?

- Ask Liberty Mutual which commercial or wholesale channel handles your class, and request limits and attachment terms. [7](https://business.libertymutual.com/industries/wholesale/ "Wholesale Distribution")
- Request CNA’s four feature clauses and the offered limit. [4](https://www.cna.com/products/umbrella "Umbrella Insurance and Excess Liability Insurance | CNA Insurance")
- Align exclusions and underlying requirements before comparing pricing. [6](https://business.libertymutual.com/commercial-solutions/ "Commercial Insurance Solutions") [4](https://www.cna.com/products/umbrella "Umbrella Insurance and Excess Liability Insurance | CNA Insurance")

## CNA vs Liberty Mutual Umbrella and Excess Liability Insurance Compared

| Criteria | CNA Commercial Umbrella and Excess Liability | 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. [6](https://business.libertymutual.com/commercial-solutions/ "Commercial Insurance Solutions") [7](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 | Confirm in your quote. | The commercial business pages distribute products through brokers and agents. [6](https://business.libertymutual.com/commercial-solutions/ "Commercial Insurance Solutions") [7](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 | CNA says its umbrella forms are designed to align with most underlying terms and conditions. [4](https://www.cna.com/products/umbrella "Umbrella Insurance and Excess Liability Insurance | CNA Insurance") (Evidence: Company-reported; scope: Entity: CNA brand; issuing CNA subsidiary may vary by product/state Product: United States commercial insurance Jurisdiction: United States Research source scope: US commercial umbrella/excess Claim limitation: Company-reported; policy wording, underwriting and jurisdiction-specific availability control..)<br><br>CNA lists key-employee replacement, crisis management, waiver of subrogation and most-favorable venue as built-in enhancements. [4](https://www.cna.com/products/umbrella "Umbrella Insurance and Excess Liability Insurance | CNA Insurance") (Evidence: Company-reported; scope: Entity: CNA brand; issuing CNA subsidiary may vary by product/state Product: United States commercial insurance Jurisdiction: United States Research source scope: US commercial umbrella/excess Claim limitation: Company-reported; policy wording, underwriting and jurisdiction-specific availability control..) | Its wholesale page names umbrella/excess cover as an option for that industry; limits and attachment terms are not established here. [6](https://business.libertymutual.com/commercial-solutions/ "Commercial Insurance Solutions") [7](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..) |
| Risk Services | CNA says its commercial umbrella/excess underwriting draws on more than 50 years of experience and offers flexible underwriting. [4](https://www.cna.com/products/umbrella "Umbrella Insurance and Excess Liability Insurance | CNA Insurance") (Evidence: Company-reported; scope: Entity: CNA brand; issuing CNA subsidiary may vary by product/state Product: United States commercial insurance Jurisdiction: United States Research source scope: US commercial umbrella/excess Claim limitation: Company-reported; policy wording, underwriting and jurisdiction-specific availability control..) | 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. [6](https://business.libertymutual.com/commercial-solutions/ "Commercial Insurance Solutions") [7](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 CNA vs Liberty Mutual Umbrella and Excess Liability

- [CNA vs Liberty Mutual](https://spot.insure/compare/cna-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.
- [CNA vs Liberty Mutual Builders Risk Insurance](https://spot.insure/compare/cna-vs-liberty-mutual/builders-risk)
- [CNA vs Liberty Mutual Business Owner’s Policy](https://spot.insure/compare/cna-vs-liberty-mutual/business-owners-policy)
- [CNA vs Liberty Mutual Cargo and Transit Insurance](https://spot.insure/compare/cna-vs-liberty-mutual/cargo-transit)
- [CNA vs Liberty Mutual Commercial Auto Insurance](https://spot.insure/compare/cna-vs-liberty-mutual/commercial-auto)
- [CNA vs Liberty Mutual Commercial Property Insurance](https://spot.insure/compare/cna-vs-liberty-mutual/commercial-property)
- [CNA vs Liberty Mutual Crime Insurance](https://spot.insure/compare/cna-vs-liberty-mutual/crime)
- [CNA vs Liberty Mutual Cyber Insurance](https://spot.insure/compare/cna-vs-liberty-mutual/cyber)
- [CNA vs Liberty Mutual D&O Insurance](https://spot.insure/compare/cna-vs-liberty-mutual/directors-officers)
- [CNA vs Liberty Mutual Employment Practices Liability Insurance](https://spot.insure/compare/cna-vs-liberty-mutual/employment-practices)
- [CNA vs Liberty Mutual Equipment Breakdown Insurance](https://spot.insure/compare/cna-vs-liberty-mutual/equipment-breakdown)
- [CNA vs Liberty Mutual Fidelity Bonds](https://spot.insure/compare/cna-vs-liberty-mutual/fidelity-bonds)
- [CNA vs Liberty Mutual Fiduciary Liability Insurance](https://spot.insure/compare/cna-vs-liberty-mutual/fiduciary)
- [CNA vs Liberty Mutual General Liability Insurance](https://spot.insure/compare/cna-vs-liberty-mutual/general-liability)
- [CNA vs Liberty Mutual Inland Marine Insurance](https://spot.insure/compare/cna-vs-liberty-mutual/inland-marine)
- [CNA vs Liberty Mutual Kidnap and Ransom Insurance](https://spot.insure/compare/cna-vs-liberty-mutual/kidnap-ransom)
- [CNA vs Liberty Mutual Management Liability Insurance](https://spot.insure/compare/cna-vs-liberty-mutual/management-liability)
- [CNA vs Liberty Mutual Medical Malpractice Insurance](https://spot.insure/compare/cna-vs-liberty-mutual/medical-malpractice)
- [CNA vs Liberty Mutual Professional Liability (E&O) Insurance](https://spot.insure/compare/cna-vs-liberty-mutual/professional-errors-omissions)
- [CNA vs Liberty Mutual Surety Bonds](https://spot.insure/compare/cna-vs-liberty-mutual/surety-bonds)
- [CNA vs Liberty Mutual Tech E&O Insurance](https://spot.insure/compare/cna-vs-liberty-mutual/technology-errors-omissions)
- [CNA vs Liberty Mutual Workers’ Compensation Insurance](https://spot.insure/compare/cna-vs-liberty-mutual/workers-compensation)
- [AIG vs CNA Umbrella and Excess Liability Insurance](https://spot.insure/compare/aig-vs-cna/umbrella-excess)
- [AIG vs Liberty Mutual Umbrella and Excess Liability Insurance](https://spot.insure/compare/aig-vs-liberty-mutual/umbrella-excess)
- [Alliance Risk vs CNA Umbrella and Excess Liability Insurance](https://spot.insure/compare/alliance-risk-vs-cna/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 CNA Umbrella and Excess Liability Insurance](https://spot.insure/compare/amelia-risk-vs-cna/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 CNA vs Liberty Mutual

### Sources About CNA

1. [Insurance for Small Businesses](https://www.cna.com/solutions/small-business). CNA; Insurance for Small Businesses, lines 38-50 and 65-67 (CNA Central and agent route); lines 79-106 (product and stated appetite lists); page footer line 132 (CNA registered service mark).. Accessed 2026-09-28.
2. [CNA Connect Small Businessowners Policy (BOP) | CNA Insurance](https://www.cna.com/products/cna-connect). CNA; CNA Connect; coverages, product range, services. Accessed 2026-09-28.
3. [General Disclaimer](https://www.cna.com/cnadisclaimer/generaldisclaimer). CNA; General Disclaimer paragraphs 1 and 5 (HTML lines 24 and 28): CNA describes Continental Casualty Company and its relevant affiliates; references to CNA may include one or more CCC affiliates; each particular policy/product/service is the responsibility only of the specific CNA company that issues or supplies it. Footer line 57 identifies CNA Financial Corporation as trademark registrant. Re-read 2026-09-29.. Accessed 2026-09-29.
4. [Umbrella Insurance and Excess Liability Insurance | CNA Insurance](https://www.cna.com/products/umbrella). CNA; Forms, enhancements, underwriting. Accessed 2026-09-28.

### Sources About Liberty Mutual

5. [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.
6. [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.
7. [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

8. [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.
9. [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.
10. [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.
11. [Coverage Hub](https://www.coverdash.com/coverage). Coverdash; Excess & Specialty: Umbrella; Excess Liability. Accessed 2026-09-16.
12. [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.

## CNA Review Scores for 2026

Review Score: 9.0 / 10 from 1 rated source, equally weighted.

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

- NerdWallet: NerdWallet editorial rating for manufacturers 4.5/5 (Editorial rating). NerdWallet editorial assessment of CNA for U.S. manufacturers, not consumer average. Period: Published 2026-03-26. Checked 2026-09-29. [Best Insurance for Manufacturers in 2026](https://www.nerdwallet.com/business/insurance/learn/manufacturers)
- Trustpilot: Displayed Trustpilot TrustScore 1.4/5 page text; 1.5/5 badge (TrustScore out of 5); 49 reviews. CNA.com profile, mixed business and consumer/LTC reports; self-selected, not representative commercial P&C sample. Period: 14 reviews in prior 12 months; 2026-09-29. Checked 2026-09-29. [CNA customer reviews](https://www.trustpilot.com/review/www.cna.com)
- BBB: BBB customer-review average 1/5 (BBB star rating); 6 reviews. Long Term Care Insurance profile covering headquarters/corporate locations; not commercial P&C; six self-selected reviews. Period: Displayed 2026-09-29. Checked 2026-09-29. [CNA Financial Corporation customer reviews](https://www.bbb.org/us/il/chicago/profile/long-term-care-insurance/cna-financial-corporation-0683-90032439/customer-reviews)

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