What Is Chubb?
Chubb fits technology firms seeking DigiTech ERM or small businesses with up to $30 million in revenue seeking a BOP; buyers wanting an instant direct purchase should compare online carriers. Agents can quote eligible small accounts, with a faster cyber route. 1,2,3
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. 6,7
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. 9,10,11,12,13
Key Differences in Umbrella and Excess Liability Insurance
Chubb documents an online broker workflow
Chubb says appointed brokers can reserve, quote, bind, and issue umbrella business through Express Umbrella. Liberty Mutual lists umbrella/excess in its commercial catalogue and as an option for wholesale businesses, but directs buyers through brokers and agents without describing a digital platform in the reviewed claims. Ask your broker whether your account can use Chubb Express Umbrella and what placement route Liberty Mutual offers. 4 8
Chubb separates business segments
Chubb describes tailored umbrella/excess options for global and national firms, mid-sized companies, energy, and construction, as well as small-business coverage in Total Account Solution. Liberty Mutual names wholesale distribution as one target industry and also lists the line in its broader commercial catalogue. Share your industry and size with each broker to identify the right underwriting team and form. 4 7
Limits depend on which Chubb route you use
Chubb's small-business package describes umbrella as an additional layer but does not publish its limit there; its larger and mid-market offerings are described separately. Liberty Mutual's reviewed product pages likewise do not state umbrella limits or attachment points. Ask both for the available limits over your scheduled underlying policies, and ask Chubb whether the small-business package can meet your required amount. 5 8
What to Confirm in Umbrella and Excess Liability Insurance Quotes
Review Scores
These averages can combine ratings for different products, locations, and customer groups, including approximate BBB grade conversions. Read each review for the sources, scope, and calculation.
Chubb
Review Score
5 rated sources
Chubb earns 5/5 from NerdWallet, which reports fewer-than-expected commercial property and liability complaints. Customer ratings are mixed across products and locations.[1][4][7][8][9]
Read Chubb reviewsLiberty Mutual
Review Score
2 rated sources
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.[4][1]
Read Liberty Mutual reviewsOffering Details
Chubb vs Liberty Mutual: Umbrella and Excess Liability Insurance: documented features by provider
| Criteria | Chubb Umbrella & Excess Casualty Insurance | Umbrella and Excess Liability |
|---|---|---|
| Role in This Line | Chubb underwrites umbrella and excess liability insurance directly, spanning smaller and mid-sized companies through global multinationals, and offers it as an add-on within its small-business Total Account Solution. 4,5Company-reported. Umbrella & Excess Casualty product page and workers'-compensation Total Account Solution section. | Liberty Mutual lists umbrella and excess liability in its commercial catalogue and in a wholesale-industry coverage list. 7,8Company-reported. 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 | Chubb structures umbrella and excess casualty into separate options for large global and national companies, mid-sized companies, the energy industry, and the construction industry, saying it tailors solutions to each segment's exposures. 4Company-reported. Umbrella & Excess Casualty Insurance Options section. | The commercial business pages distribute products through brokers and agents. 7,8Company-reported. 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 | For large global and national companies, Chubb specializes in lead umbrella and excess liability; for mid-sized companies it offers what it calls competitive excess casualty alternatives with claims handling and timely service. 4Company-reported. Umbrella & Excess Casualty product page option descriptions. | Its wholesale page names umbrella/excess cover as an option for that industry; limits and attachment terms are not established here. 7,8Company-reported. 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 reviewed umbrella and excess casualty page does not publish specific attachment points, limit amounts or pricing; these vary by account and program. 4Not found in reviewed sources. Umbrella & Excess Casualty product page as read on 2026-09-23. When bundled through Chubb's small-business Total Account Solution, umbrella insurance is described only as providing "an additional layer of coverage over existing liability policies," without a published limit amount. 5Company-reported. Workers'-compensation Total Account Solution section. | Confirm in your quote. |
| How to Apply | Chubb offers Express Umbrella, a web-based platform for appointed brokers to reserve, quote, bind and issue umbrella business, which Chubb says can help brokers build specialized books of business. 4Company-reported. Express Umbrella Online Platform section; available to appointed brokers, not directly to buyers. You can request a quote online, or an appointed independent agent or broker can place the policy through a Chubb Appointment. 4Company-reported. Umbrella & Excess Casualty product page quote call-to-action. | 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. 7,8Not found in reviewed sources. Reviewed product-page scope only. This not-found disposition is not a claim that no digital route exists. |
Full Comparison
More Chubb vs Liberty Mutual Comparisons
Other Umbrella and Excess Liability Insurance Comparisons
Sources
Chubb
- Insurance For Technology Companies. Chubb; Industry overview; Who we serve; Products and services: commercial package insurance (BOP, Benchmarq, Customarq), E&O/Cyber, Financial Lines, workers’ compensation, auto and umbrella; dedicated underwriting, claims and risk engineering. Accessed 2026-09-16.
- Terms Of Use. Chubb; Acceptance of Terms identifying Chubb Group Holdings Inc.; surplus-lines producer restriction; products not available to all users or jurisdictions; Chubb Limited safe-harbor language; Internet Portals for Chubb Business. Accessed 2026-09-16.
- Cyber Insurance Coverage & Products. Chubb; Cyber insurance product catalog: Cyber ERM, DigiTech ERM (technology E&O, media and cyber) and Pro ERM (non-licensed professional services); Marketplace quoting for eligible risks under $100 million revenue; first- and third-party coverage summaries. Accessed 2026-09-16.
- Umbrella & Excess Casualty Insurance. Chubb; Umbrella & Excess Casualty Insurance Options: Large Global and National Companies, Mid-Sized Companies, Energy Industry, Construction Industry; Express Umbrella Online Platform. Accessed 2026-09-23.
- Workers' Compensation Insurance for Small Business. Chubb; Total Account Solution: umbrella insurance providing an additional layer of coverage over existing liability policies. Accessed 2026-09-23.
Liberty Mutual
- 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.
- Commercial Insurance 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.
- Wholesale Distribution. 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.
Umbrella and Excess Liability Insurance Guide
- 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.
- Commercial Insurance Guide. 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.
- Lines of Insurance. 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.
- Coverage Hub. Coverdash; Excess & Specialty: Umbrella; Excess Liability. Accessed 2026-09-16.
- Products. Kinro; 09 Umbrella/Excess: additional limits above scheduled underlying policies; when to review; reviewed with. Accessed 2026-09-16.
