CNA vs 
Liberty Mutual: How Do They Compare for Professional Liability (E&O) Insurance?
CNA’s MPL target list includes consultants, staffing firms, advertising agencies, and event planners; Liberty Mutual lists a Physicians & Surgeons Professional program marked “PL Only.” CNA describes Epack 3 and EPS Plus combinations, while Liberty Mutual’s program listing labels its named program professional-liability only. 4,8,5
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. 1,2,3
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
Read the Liberty Mutual profile
Read the Liberty Mutual Professional Liability (E&O) Insurance page
What Is Professional Errors and Omissions (E&O) Insurance?
Professional liability can help pay defense costs and covered losses when a client says your advice or service caused financial harm. If customers rely on your work, list every service you provide and check the claims-made reporting and prior-work terms. 9,10,11,12
Key Differences in Professional Liability (E&O) Insurance
Professional Classes Named
CNA says its MPL targets non-licensed classes including consultants, staffing firms, advertising agencies, and event planners; that list is not a complete eligibility rule. Liberty Mutual’s specialty-program portfolio names a Physicians & Surgeons Professional program. The published class descriptions point to different professional groups: CNA’s listed non-licensed classes and Liberty Mutual’s named physician-and-surgeon program. Neither listing establishes acceptance for a particular applicant. 4 8
Professional Liability Grouping
CNA describes Epack 3 as combining technology and professional liability with cyber and media, and EPS Plus as combining E&O and cyber for professional-services firms. Liberty Mutual marks its named Physicians & Surgeons Professional program “PL Only.” These records distinguish CNA’s described multi-line configurations from Liberty Mutual’s professional-liability-only program label; Liberty Mutual’s listing is not a policy form and does not establish quote terms. 5 8
What to Confirm in Professional Liability (E&O) Insurance Quotes
CNA and Liberty Mutual Review Scores for 2026
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.
CNA Review Score
Review Score
1 rated source
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.[1][5]
Read CNA reviewsLiberty Mutual Review Score
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 reviewsCNA vs Liberty Mutual Professional Liability (E&O) Insurance Compared
CNA vs Liberty Mutual: Professional Liability (E&O) Insurance: documented features by provider
| Criteria | CNA Professional and Technology Liability | Physicians & Surgeons Professional program |
|---|---|---|
| Role in This Line | CNA describes Epack 3 as combining technology and professional liability with cyber and media in a modular policy; EPS Plus combines E&O and cyber for professional-services firms. 4,5Company-reported. These are separate product routes and are not evidence that technology E&O and miscellaneous E&O share identical wording. | Liberty Mutual lists a Physicians & Surgeons Professional program, marked “PL Only,” in its specialty-program portfolio. 8Company-reported. Official Liberty Mutual commercial/product page; company-reported description scoped to Physicians & Surgeons Professional program. Not policy wording, underwriting approval, state eligibility or a coverage guarantee. |
| Who It’s For | CNA says its Miscellaneous Professional Liability targets non-licensed professional classes such as consultants, staffing firms, advertising agencies and event planners. 4Company-reported. The listed classes are a target list, not a complete or guaranteed eligibility rule. | Liberty Mutual says its programs are managed by program administrators; the page provides program inquiry contact details. 8Company-reported. Official Liberty Mutual commercial/product page; company-reported description scoped to Physicians & Surgeons Professional program. Not policy wording, underwriting approval, state eligibility or a coverage guarantee. |
| Coverage Features | CNA markets Technology E&O for technology businesses facing professional-liability exposures and says it is intended to support contractual requirements. 4Company-reported. The page is a summary and does not define covered services, contract exceptions or policy triggers. | The listing identifies professional liability only; it does not establish form terms, limits, exclusions or insurer for a quote. 8Company-reported. Official Liberty Mutual commercial/product page; company-reported description scoped to Physicians & Surgeons Professional program. Not policy wording, underwriting approval, state eligibility or a coverage guarantee. |
| Risk Services | CNA describes dedicated claims and risk-control support for its cyber, media, technology and professional-liability business. 4Company-reported. This portfolio-level statement does not establish a service outcome or a line-specific claims protocol. | 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. 8Not found in reviewed sources. 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 Professional Liability (E&O)
Professional Liability (E&O) Pages for CNA and Liberty Mutual
Other Coverage Lines Compared for CNA vs Liberty Mutual
Other Professional Liability (E&O) Insurance Provider Comparisons
Sources for CNA vs Liberty Mutual
Sources About CNA
- Insurance for Small Businesses. 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.
- CNA Connect Small Businessowners Policy (BOP) | CNA Insurance. CNA; CNA Connect; coverages, product range, services. Accessed 2026-09-28.
- General Disclaimer. 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.
- Cyber Insurance - Cyber Risk Solutions. CNA; Current U.S. page: Epack 3 combines cyber, media, technology and professional liability; MPL appetite, media support, technology E&O, claims and risk-control descriptions. Retrieved 2026-09-30. Accessed 2026-09-30.
- Epack 3 – Cyber, Media, Technology & Professional Liability. CNA; Official sell sheet: modular bundled policy, media coverages and possible extensions, technology/professional line descriptions and quote process for small risks. Marketing summary expressly defers to issued policy. Retrieved 2026-09-30. Accessed 2026-09-30.
Sources About 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.
- Programs. Liberty Mutual Business Insurance; ‘Our programs portfolio’ lists Auto Salvage/Dismantlers, Fire Suppression and Sprinkler Contractors, Nonprofits, Physicians & Surgeons Professional (PL only), Post-surgical for bariatric and plastic surgeries, Roofing Contractors, Scrap Metal Dealers, Self-storage, and Sports and Fitness. Page says programs are managed by program administrators; not a complete business catalogue. Accessed 2026-09-29.
Sources for the Professional Liability (E&O) Insurance Guide
- FAQ: Professional liability insurance. Texas Department of Insurance; What’s professional liability coverage?; What types of damages…; What’s general liability insurance?; Do I need professional liability… if I have general liability…?; Is professional liability insurance required?; Can a client require…?; What’s the difference between occurrence policies and claims-made policies. Accessed 2026-09-16.
- Professional liability insurance. Insurance Information Institute; Opening paragraphs (professional services/advice and E&O name); Claims not covered by general liability; What types of businesses need professional liability insurance?; What’s covered… and what’s not (claims-made versus occurrence, defense and judgments, non-financial/intentional limits, BOP/in-home exclusion). Accessed 2026-09-16.
- Get business insurance. U.S. Small Business Administration; Six common types of business insurance table. Accessed 2026-09-16.
- Professional Liability – US Direct Errors and Omissions Insurance. Hiscox Inc. specimen; About this Policy / Coverage for Claims Made Against You; I.A Insuring Agreement; I.B Defense; I.C Settlement; II.A Notice of Claims; II.C Optional Extended Reporting Period; III.A, III.K, III.M, III.R, III.S Exclusions; IV.A–B Limits and Deductible; VI.O Professional Services; VI.U Wrongful Act. Accessed 2026-09-16.
